BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Application of the multichannel front-end chip for SiPM based gamm a detectors DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1240@cern.ch DESCRIPTION:Speakers: Ahmed Cherif Chergui ()\nApplication of the multicha nnel front-end chip for SiPM based gamma detectors\n\nChergui А.\, Popova E.V.\, Stifutkin A.A.\nNational research Nuclear University MEPHI ( Mosco w Engineering Physics Institute) \nCherguicherif@hotmail.com \,elenap73@ma il.ru \, stifout@rambler.ru\n\nAbstract:\nSilicon Photomultiplier (SiPM) i s a modern photosensorwhich is widely used in different fields of science and technology. When coupled with a scintillator crystal it can serve as a gamma-detector. However\, building of multichannel systems based on very popular scintillators such as NaI(Tl) and CsI(Tl) is difficult due to lack of the multichannel front-end chips designed for use with those "slow" cr ystals.\nA prototype of such chip was designed and manufactured in NRNU ME PhI\, Department of Microelectronics (N27). The chip is configurable and e ach channel includes an input linear amplifier\, an integrator\, slow and fast shapers\, a discriminator\, a peak-detector and controlling electroni cs.\nIn addition\, a test-board for the chip evaluation was build and spec ial control software was developed. \nThe evaluation board was connected to a detector module which consists from a NaI(Tl) crystal and SiPM matrix and the system energy resolution for a number of gamma-sources was measu red.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1240/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1240/ END:VEVENT BEGIN:VEVENT SUMMARY:Phase diagram and dualities of dense baryonic matter with chiral i mbalance DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1372@cern.ch DESCRIPTION:Speakers: Roman Zhokhov (IHEP NRC KI\, IZMIRAN)\nIn this talk the phase structure of the dense baryonic/quark matter has been investigat ed in the presence of baryon\, isospin\, chiral and chiral isospin chemica l potentials in the framework of Nambu--Jona-Lasinio model. It has been sh own that in the large-Nc limit there exist several dualities of the phase portrait. One of the key conclusions of our studies is the fact that chira l imbalance generates charged pion condensation in dense baryonic/quark ma tter even in the case of charge neutral matter\, which is interesting in t he context of the astrophysics of neutron stars. It was also shown that o ur results in particular cases are consistent with the simulation of latti ce QCD. Our studies show that different types of chiral imbalances can occ ur in the cores of neutron stars or in heavy ion collision experiments whe re large baryon densities can be reached\, due to the so-called chiral sep aration and chiral vortical effects.\n\nhttps://indico.particle.mephi.ru/e vent/22/contributions/1372/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1372/ END:VEVENT BEGIN:VEVENT SUMMARY:Operator-based method for finding exact solutions of the propagato r equation in the presence of a magnetic field DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1261@cern.ch DESCRIPTION:Speakers: STANISLAV IABLOKOV (P.G. Demidov Yaroslavl State Uni versity)\nElementary particle processes in the extreme astrophysical condi tions\, such as strong magnetic fields\, require knowledge of the exact pr opagators. There are known expressions for the propagators of scalar\, Dir ac and massive vector fields in the presence of the constant magnetic fiel d both in the coordinate and in the momentum spaces. In general they requi re either following the tedious Fock-Schwinger procedure or first obtainin g the exact solutions of the wave equation of interest followed by summati on over the allowed quantum numbers. In this work we present a general met hod of obtaining the exact analytical solutions of the propagator equation based on the decomposition of the delta function into the sum of the Hami ltonian-like operator eigenfunctions with the subsequent integration of th e corresponding operator exponent in the proper time domain. Providing tha t parts of the operator exponent commute\, it becomes possible to decouple them from each other and apply each part separately to the delta function decomposition series. This method not just allows to straightforwardly ob tain the expression for the propagator in the momentum space as a sum over the Landau levels\, but also helps to gain insights into the propagator's anatomy\, revealing the origins of its constituent parts.\n\nhttps://indi co.particle.mephi.ru/event/22/contributions/1261/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1261/ END:VEVENT BEGIN:VEVENT SUMMARY:Performance studies for collective flow measurements with CBM at F AIR DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1275@cern.ch DESCRIPTION:Speakers: Evgeny Kashirin (National Research Nuclear Universit y MEPhI)\, Dmitry Blau ()\nMeasurements of the directed and elliptic flow of strange and multi-strange hadrons are an important part of the physics program of the Compressed Baryonic Matter experiment (CBM) at the future a ccelerator complex FAIR in Darmstadt\, Germany. It was shown recently by s tudies from the RHIC BES program that $dv_1/dy|y=0$ and the difference bet ween $v_2$ of particles and antiparticles in the $\\sqrt{s_{NN}}$ region o f a few GeV are of great interest for understanding a pattern of the phase transition between quark-gluon and hadronic matter. Precision measurement s of these observables in the CBM\nexperiment will be a significant step f orward in the exploration of the QCD phase diagram in the region of $\\sqr t{s_{NN}} = 2-5$ GeV.\n\nWe will present recent results from CBM performan ce studies for measurements of the directed ($v_1$) and elliptic ($v_2$) f low of strange hadrons\, $\\Lambda$ and $K^0_s$. Detailed comparison of th ese coefficients for different collision energies and event generators (Ur QMD or DCM-QGSM models) will be presented. For the performance studies we use the CBMROOT environment for Monte-Carlo simulations and event reconstr uction. The Kalman Filter Particle Finder (KFParticleFinder) package is us ed for hyperon reconstruction via their weak decays\, and the Projectile S pectator Detector (PSD) for event plane determination. A status of the fas t simulator implementation for the PSD calorimeter response\, which is req uired for high statistics simulation\, will be also presented.\n\nhttps:// indico.particle.mephi.ru/event/22/contributions/1275/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1275/ END:VEVENT BEGIN:VEVENT SUMMARY:THE STUDY OF THE 12C STATES FROM THE REACTION 11B(3He\,d)12C DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1127@cern.ch DESCRIPTION:Speakers: Viktar Starastsin (National Research Center «Kurcha tov Institute»)\nThe experiment was done to study $^{11}$B($^{3}$He\,d)$^ {12}$C reaction with energy E($^{3}$He) = 25 MeV. \n\nThe aim of the exper iment is to determine the properties of $^{12}$C states at high excitation energies and in particular to verify which of the conflicting spin-parity assignments of the 13.35 MeV state (2¯ or 4¯) is consistent with the da ta and optical model predictions. \n\nThe contradicting reports attribute either 2¯ [1-4] or 4¯ [5\,6] for 13.35 MeV state in $^{12}$C. Unambiguou s determination of the spin parity of the 13.35 MeV state is necessary to define its possible contribution to the part of the spectrum that we have previously identified as a new level in $^{12}$C with excitation energy of 13.75 MeV [7]. Initially\, we have estimated this contribution as equal t o the measured state 11.83 MeV (J$^π$ =2¯). This estimation assumed spin parity J$^π$ =2¯ of the 13.35 MeV state. However\, from our experiment was settled spin-parity of the 13.35 state is 4¯. \n\nReferences \n\n1. F. Ajzenberg-Selove\, Nucl. Phys. A 506 (1990) 1 \n\n2. P.D. Miller et al. \, Nuclear Physics A l36 (1969) 229-240 \n\n3. G.M. Reynolds et al.\, Phys . Rev. C 3\, # 2 (1971) \n\n4. P.K. Bindal et al.\, Phys. Rev. C 9\, #6 (1 974) \n\n5. M. Freer et al.\,Phys. Rev. Lett. 113\, 012502 (2014) \n\n6. O.S. Kirsebom et al.\, Phys. Rev. C 81\, 064313 (2010) \n\n7. A. A.Oglobli n et al.\, EPJ Web of Conf. 66\, 02074 (2014).\n\nhttps://indico.particle. mephi.ru/event/22/contributions/1127/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1127/ END:VEVENT BEGIN:VEVENT SUMMARY:Search for the suppression of the photon yield from the decay of d ark matter particle DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1346@cern.ch DESCRIPTION:Speakers: Ayrat Kamaletdinov ()\nIn the late 2000s\, Pamela ex periment discovered an excess of the cosmic positron flux over the expecte d background at high energies\, which was verified by several subsequent e xperiments (AMS-2\, Fermi-LAT). This excess was called the "positron anoma ly". There are many attempts to explain it with annihilation or decays of particles of Dark Matter (DM). However\, these attempts become practically incompatible with the latest data on the cosmic gamma background\, obtain ed by the Fermi-LAT satellite\, because photons unavoidably appear during the decay or annihilation with the formation of positrons. In this paper\, we investigate the possibility of suppressing photon radiation in the pro cesses of decay of dark matter particles due to the parameters of the phys ics of the interaction of Dark Matter\, leading to this decay. It was foun d that the considered variants of the interaction model ((pseudo) scalar a nd (axially) vector cases) don't allow to obtain such suppression.\n\nhttp s://indico.particle.mephi.ru/event/22/contributions/1346/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1346/ END:VEVENT BEGIN:VEVENT SUMMARY:The measurement of liquid scintillator nonlinear response and intr insic energy resolution DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1248@cern.ch DESCRIPTION:Speakers: Andrey Formozov (INFN Milan\, JINR Dubna)\nFor Jiang men Underground Neutrino Observatory the requirements \n\nhttps://indico. particle.mephi.ru/event/22/contributions/1248/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1248/ END:VEVENT BEGIN:VEVENT SUMMARY:The background model estimation for scintillation detectors onboar d low altitude and high inclination satellites in the low energy gamma reg ion using the AVS-F apparatus data DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1336@cern.ch DESCRIPTION:Speakers: Irene ARKHANGELSKAJA (National Research Nuclear Univ ersity MEPhI (Moscow Engineering Physics Institute))\nThe gamma-quanta bac kground count rate model in the energy range from 0.1 MeV up to several Me V for high inclination satellites is presented. The AVS-F instrument (Ampl itude-Time Spectrometry of the Sun) was installed onboard the specialized automatic station CORONAS-F functioning in time interval since July\, 2001 up to December\, 2005 on the orbit with initial parameters: altitude ~500 km\, inclination 82.5$^\\circ$. The device was intended for the solar fla res hard X-ray and gamma emission characteristic studies. The background c ount rate time profile of AVS-F instrument analysis allows concluding the possibility of its approximation by 4-5 order polynomials in equatorial re gions of the satellite orbit\, and 1-3 order polynomials or constant in po lar caps. We obtain polynomial's coefficients for equatorial regions simil ar within errors intervals for the same geomagnetic indexes regions. The e xample of use of this method for gamma-emission background estimation for RHESSI data corrected to registration efficiency\, detectors size and sate llite altitude (orbit parameters were: altitude ~600 km\, inclination 38$^ \\circ$ in the beginning of its operation in January\, 2000) is discussed. \n\nhttps://indico.particle.mephi.ru/event/22/contributions/1336/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1336/ END:VEVENT BEGIN:VEVENT SUMMARY:About some opportunities of driving of a particle in a black hole DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1191@cern.ch DESCRIPTION:Speakers: Victor Vorontsov (National Research Nuclear Universi ty MEPhI (Moscow Engineering Physics Institute))\nIt is supposed that in a black hole unlike the routine world of coordinate and time are constants\ , and an impulse and energy are variables. In work some possibilities of d riving of a particle of matter in these conditions are considered. For the ir consideration the principle of ab inititio but not traditional minimiza tion of expression of action through a Lagrangian is used.\nIn this work a t first possible processes\, connected to this driving are constructed an d then Planck's quantum is used for drawing up equations of motion. Matter density in a black hole is supposed locally a constant. Radius vector of a particle is necessary to constants as well as its time. Only its impuls e and energy change. The picture\, opposite to driving of a particle in th e routine world turns out.\nTwo conditions of a particle characterized by two pairs of parameters\, time and energy (t\, E) and also a vector of a p osition and an impulse (r\, p)\, are considered. \nIf in the routine worl d at the uniform and rectilinear motion of t and r strive for infinity at constancy of E and p\, then in a black hole energy and an impulse do not g o beyond its limits. Therefore they or are tied to a point of t\, r and al ternate the phases\, or oscillate concerning it in the presence of the re flecting force\, for example\, caused by a density gradient in space (E\, p). Vectors of r and p rely collinear. \nEquations of motion are presente d in finite differences. Charts of driving at the same time form a closed circuit. Quantization of driving is made on state variables. Thus\, it tur ns out that the routine world and the world of a black hole somewhat dual each other. Issues of streams of energy and an impulse are discussed. Furt her consideration and quantization of more difficult movements of a partic le in a black hole\, including rotation or its analog is supposed.\n\nhttp s://indico.particle.mephi.ru/event/22/contributions/1191/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1191/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigations of large scintillation detectors response based on SiPM DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1272@cern.ch DESCRIPTION:Speakers: Peter Naumov (NRNU MEPhI)\, Mikhail Runzo ()\nDuring the development of large fast scintillation detectors with silicon photom utipliers (SiPM) for the satellite based gamma-ray telescope GAMMA-400\, t he properties of the SiPM allowed to measure the number of photoelectrons detected. The minimum of photoelectrons detected is calculated for effecti ve particles selection. The functions of the detector response to SiPM wit h a different number of cells are compared with the use of a photomultipli er. \nIt was found that to increase the efficiency of charged particles de tection it is necessary to raise the amount of collected light.\nThe techn ical possibilities of this enhancement are considered.\n\nhttps://indico.p article.mephi.ru/event/22/contributions/1272/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1272/ END:VEVENT BEGIN:VEVENT SUMMARY:Large-acceptance scintillator ring of the Fast Interaction Trigger for the ALICE Experiment. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1238@cern.ch DESCRIPTION:Speakers: Ruben Alfaro (Universidad Nacional Autonoma de Mexic o)\nDuring the upcoming Long Shutdown 2 the accelerator complex at CERN wi ll implement significant improvements to the performance of the collider i ncluding the increase of the luminosity such that it is expected a sustain interaction rates up to 1MHz for p-p collisions and 50 kHz for Pb-Pb coll isions. In order to remain operational during the Run 3 and Run 4 ALICE ha s to upgrade many of its subsystems or replace these with new detector sol utions [1] including the new Fast Interaction Trigger (FIT) [2\,3]. The ma in online functionalities of FIT will be luminosity monitoring with a dire ct link to the LHC and generation of a fast trigger signal for ALICE subsy stems. This trigger must be generated with the latency of less than 425 ns \, of which 222 ns is the delay along the connecting cables. The trigger g enerated by FIT will allow for online vertex determination\, minimum bias and centrality-based event selection\, suppression of beam-gas events\, an d for a veto of ultra-peripheral collisions. FIT is a hybrid detector comp osed of two Cherenkov detector arrays (T0+) and a large\, sectored scintil lator ring (V0+). Due to the limited space\, unlike with the T0+ arrays\, the V0+ scintillator disk can be located only on one side of the interacti on point.\n\nThe V0+ is a 148 cm diameter plastic scintillator disc divide d into 40 optically-separated modules\, forming eight 45 degrees wedges su bdivided into 5 radial segments. The size of the radial segments was chose n to cover equal pseudo-rapidity chunks. The scintillator will be viewed b y clear optical fibers coupled perpendicularly to its surface. At the othe r end the fibers will be gathered into bundles and read out by fine-mesh P MT sensors. V0+ will be characterized by high efficiency\, single Minimum Ionizing Particle (MIP) time resolution of around 250 ps\, and the ability to cope with a high dynamic range (1-600 MIP). The presentation will focu s on the design of the V0+ and the test results obtained with the latest p rototype representing a 45 degrees section of the actual detector. These t est measurements were carried out using beams from the CERN-PS accelerator .\n\nWe acknowledge the support from DGAPA-UNAM PAPIIT IN111117.\n\n[1] Up grade of the ALICE Experiment: Letter of Intent\, J.Phys. G41 (2014)\, 087 001\n\n[2] W.H. Trzaska\, New Fast Interaction Trigger for ALICE\, Nucl. Instrum. Meth. A 845 (2017) 463\n\n[3] M. Slupecki\, ALICE forward rapi dity upgrades\, PoS (EPS-HEP2017) 519\n\nhttps://indico.particle.mephi.ru/ event/22/contributions/1238/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1238/ END:VEVENT BEGIN:VEVENT SUMMARY:Space and energy distributions of the charged particles at the max imum of electromagnetic showers initiated by 5-1000 GeV electrons in Fe\, W and Pb DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1200@cern.ch DESCRIPTION:Speakers: Sergey Denisov (IHEP)\nDetectors consisting of a hig h Z converter and a hodoscope type particle detector behind it are often u sed in HEP experiments for e\,γ/hadron and γ/π0 separations and for e\, γ coordinate and energy measurements. The most popular converter material s are Pb and W\, while Fe or Cu are used less frequently. The converter th ickness is often close to tmax that corresponds to the maximum flux of ch arge particles (mainly electrons and positrons) in the EM shower. Thus the characteristics of EM showers at tmax are of particular interest.\nIn our article/1/ fluctuations of charge particles flux at tmax were considered. In this report the results of calculations of the charged particles space and energy distributions at tmax for the Fe\, W and Pb converters irradia ted by 5 to 1000 GeV electrons are discussed in details. The calculations are based on GEANT4. In particular it is shown\nthat a converter of tmax placed in a high energy electron beam can be used as a source of the inten se bunches of ultarelativistic positrons and electrons with subpicosecond time spread and of ~2 mm in diameter. Obtained results are compared with e xperimental data.\n \n1.S.P.Denisov\, V.N.Goryachev. Preprint IHEP 2018-10 \, Protvino\, 2018.\n\nhttps://indico.particle.mephi.ru/event/22/contribut ions/1200/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1200/ END:VEVENT BEGIN:VEVENT SUMMARY:Complex method of preparing working medium for two-phase xenon emi ssion detector DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1197@cern.ch DESCRIPTION:Speakers: Aleksey Shakirov (MEPhI)\nThe attachment of electron s to electronegative impurities in condensed phases is the most important process limiting performance of two-phase emission detectors. These impuri ties are also responsible for some other processes that degrade the effici ency of the detector\, such as reducing energy of electrons during drift a nd absorbing UV radiation. We present a complex method for preparing worki ng medium for the next generation of two-phase emission detectors planned for use in the largest international nuclear physics experiments. The meth od is based on multi-stage technology for xenon purification from electron egative impurities.\nIn the first stage\, liquid xenon is irradiated by th e hard ultraviolet radiation generated by an electric high-voltage dischar ge in a liquid\, for the purpose of decomposition of complex high-molecula r impurities due to photolysis. At the second stage\, a massive sample of liquid xenon is purified with nanodispersed titanium generated in the liqu id by a high-voltage electric discharge between the titanium electrodes. I n the third stage\, which can run parallel to the first and second stages in time\, the internal surfaces of the detector and gas lines are cleaned by repeatedly circulating the gaseous xenon through a hot metal getter in a closed loop. At the fourth stage\, already during the operation of the d etector\, the liquid xenon is withdrawed from the filled detector\, evapor ated in a special heat exchanger\, goes through the hot metal getter\, and condensates into the detector by means of a heat exchanger. This stage is carried out simultaneously with a physical experiment and assumes a conti nuous measurement of the lifetime of electrons before capture by electrone gative impurities to correct the experimental data obtained.\n\nhttps://in dico.particle.mephi.ru/event/22/contributions/1197/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1197/ END:VEVENT BEGIN:VEVENT SUMMARY:THE PRINCIPLES OF NEUTRINO SOURCE CREATION ON THE BASE OF LITHIUM. THE VARIANTS OF REALIZATIONS (REVIEW) DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1212@cern.ch DESCRIPTION:Speakers: Vladimir Lyashuk ()\nThe 8Li is neutron rich short l iving isotope ( T1/2 = 0.84 s) with hard antineutrino spectrum (Emax= 13 MeV and averaged - 6.5 MeV). Powerful 8Li-antineutrino source can be real ized on the base of (n\,gamma)-activation of 7Li isotope and subsequent be ta-decay. The source is a prime perspective owing to the hard antineutrin o spectrum as cross section of neutrino depends at the considered energy p roportional to squared energy and rate of the neutrino interactions will increase strongly. \n\nDifferent neutron sources can be utilized for lithi um activation [1-3]. It can be the high-flux nuclear reactors (in a statio nary mode) enclosed by lithium blanket-converter (i.e.\, the neutrino fact ory in a static regime of operation). The advantages of 8Li antineutrino s pectrum will be more fully utilized in the scheme with pulse reactors\, wh en antineutrino flux from beta-decay of fission isotopes will be separate d in time from neutrino of 8Li decay. Another perspective regime is dynami cal one\, when an activated 7Li is pumped in the close cycle through the a ctive zone of the reactor and further is delivered close to the neutrino d etector. Today significant activity directed to creation of the neutrino f actory based on the tandem of lithium blanket plus an accelerator and neut ron generating target [4-5]. \n\nIt was calculated the efficiency (number of 8Li isotopes per neutron of the neutron source) of such an installation s. It was considered the geometries of lithium blankets. Different types o f blanket matter were considered: the pure lithium in the metallic state a nd lithium chemical compounds. The most preferable is the D2O-solution of LiOD\, which allows to decrease the requirements in mass of high purified 7Li isotope from tens to about three hundreds times [5-7]. It was consider ed the neutron yield from targets (W\, Pb) of the neutrino factory in the “tandem” scheme of proton accelerator (with energy of several hundreds MeV’s) and the expected efficiency of the lithium blanket were obtained . The conception of the proposed lithium source in the “tandem” scheme [8] is included today to the project of the powerful source and proposed for neutrino investigations [4].\nIt was considered the advantages ensured by 8Li source for neutrino experiments.\n\nhttps://indico.particle.mephi. ru/event/22/contributions/1212/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1212/ END:VEVENT BEGIN:VEVENT SUMMARY:A new ring scintillation detector wihout blind areas for neuton di ffraction DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1211@cern.ch DESCRIPTION:Speakers: Vasily Litvin (INSTITUTE FOR NUCLEAR RESEARCH RAS)\n We developed a new ring neutron detectors based on ZnS/LiF scintillators a nd solid-state photomultipliers (SiPM) for powder neutron difractometers. This detector can capture full Sherrer's ring and therefore can provide t he most effective regustration of scaterred by sample neutrons. The design of the detector allows completely avoiding blind areas. The developed det ectors consisst from linear scintillation counters developed and fabricted in INR RAS [1]. This counters use for light readout a lightguide with dif fuse reflection. The light readout by this method is more effective than t he wavelenght shifting fibers - up to 80 photoelectrons [2-3]. These ring detectors are successfully tested on time-of-flight diffractometers at spa llation source RADEX of INR RAS [3]. The efficiency of thermal neutrons re gistration can reach 70%. It is also possible to create multi-layer detect ors to increase efficiency. We also developed counters with trapezoidal li ghtguide for assembling of the ring detector. This method allows us to ach ieve 0 % of blind areas. This method has patented [4].\n Proposed schemes will make it possible to create highly efficient\, compact and lightweight detectors that do not require high voltage (because used solid-state phot omultipliers). Due to the miniaturized sizes of photodetectors\, these det ectors have proved to be an effective and inexpensive alternative to 3He-f illed detectors.\n\n[1] Marin V.N.\, Sadykov R.A.\, Trunov D.N. et al. Tec h. Phys. Lett. (2015) 41: 912.\n\n[2] Litvin V.S.\, Marin V.N.\, Karaevsky S.K. et al. Crystallogr. Rep. (2016) 61: 106.\n\n[3] Marin V.N.\, Sadykov R.A.\, Trunov D.N. et al. Instrum Exp Tech (2018) 61: 1.\n\n[4] Patent RU 177857\, 17.12.2017.\n\nhttps://indico.particle.mephi.ru/event/22/contrib utions/1211/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1211/ END:VEVENT BEGIN:VEVENT SUMMARY:Towards a New Model of the Universe DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1090@cern.ch DESCRIPTION:Speakers: Dragan Hajdukovic ()\nWe present the astonishing as trophysical and cosmological consequences of the following hypotheses:\n\n 1. The Standard Model matter (i.e. matter made from quarks and\n lepto ns interacting through the exchange of gauge bosons) is the\n only cont ent of the Universe. \n 2. Quantum vacuum fluctuations are virtual gravita tional dipoles (i.e.\n systems composed from one positive and one negat ive gravitational\n charge)\n\nThe first hypothesis excludes dark matte r and dark energy from astrophysics and cosmology\, while the second hypot hesis postulates quantum vacuum as a cosmological fluid free of the cosmol ogical constant problem.\n\nThe phenomena usually attributed to hypothetic al dark matter\, may be considered as a consequence of the local gravitati onal polarization of the quantum vacuum by the immersed Standard Model mat ter\; i.e. the galactic halo of dark matter can be replaced by the halo of the polarized quantum vacuum. Globally “quantum vacuum” may be viewe d as a cosmological fluid\, which during expansion of the Universe convert s from a fluid with negative pressure - allowing an accelerated expansion of the Universe - to a fluid with zero pressure\, which physically means t he end of the accelerated expansion. This\, for the first time\, suggests that quantum vacuum may explain both phenomena\; phenomena for which we ha ve invoked dark matter and phenomena for which we have invoked dark energy . \n\nFurthermore\, as a consequence of the hypothesis of virtual gravitat ional dipoles\, together with the gravitational version of the Schwinger m echanism\, the possibility exists that we live in a cyclic universe with c ycles alternatively dominated by matter and antimatter. Consequently\, at least mathematically\, there is no initial singularity\, there is no need for cosmic inflation and there is an elegant explanation of the matter-ant imatter asymmetry in the universe: our universe is dominated by matter bec ause the previous cycle was dominated by antimatter (and the next cycle wo uld be dominated by antimatter again). \n\nThe eventual evidence of gravit ational effects from the quantum vacuum “enriched” with virtual gravit ational dipoles can be revealed\, among other ways\, through the gravitati onal experiments with antihydrogen at CERN and by the study of orbits of t iny satellites in trans-Neptunian binaries\, for instance UX 25.\n\nhttps: //indico.particle.mephi.ru/event/22/contributions/1090/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1090/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of 4 charged pion production at VEPP 2000 collider with CMD- 3 detector DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1371@cern.ch DESCRIPTION:Speakers: Alexandr Korobov (BINP)\nA cross section of the proc ess e+ e− → π + π − π + π − has been measured using an integr ated luminosity of 17 pb^{-1} collected with the CMD-3 detector in the cen ter-of-mass energy range 650-1000 MeV. The main goal of this analysis is p recise measurement of the cross section. High-precision measurements of va rious hadronic cross sections are of great interest in connection with the problem of the muon anomalous magnetic moment g-2. The e+ e− → π + π − π + π − can be used to test the conservation of vector current (CVC) hypothesis\, which predicts a relation between the e+ e− → π + π\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1371/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1371/ END:VEVENT BEGIN:VEVENT SUMMARY:GAMMA-400 gamma-ray telescope construction features DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1370@cern.ch DESCRIPTION:Speakers: S Suchkov (LPI)\nSpace-based GAMMA-400 gamma-ray tel escope will be installed on the Russian space observatory. GAMMA-400 is in tended for precision measurements of gamma-radiation in the energy range f rom 20 MeV to several TeV of discrete sources in the Galactic plane\, espe cially\, Galactic Center\, etc. measuring of the energy spectra of galacti c and extragalactic diffuse gamma-radiation\, which may be associated with the annihilation or decay of dark matter particles. Main parameters of th e gamma-ray telescope are: angular resolution ~0.01° at Eγ =100 GeV and energy resolution ~1% at Eγ =100 GeV\, calorimeter thickness 22 r.l.\, pr oton rejection 105.\n\nhttps://indico.particle.mephi.ru/event/22/contribut ions/1370/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1370/ END:VEVENT BEGIN:VEVENT SUMMARY:The results and prospects of the Baikal Gigaton Volume Detector DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1367@cern.ch DESCRIPTION:Speakers: Viktoriya Dik (JINR)\nWe present the current status and plans of the Baikal-Gigaton Volume Detector (Baikal-GVD) experiment. B aikal-GVD is the project of a cubic-kilometer scale high-energy neutrino o bservatory. For the time being GVD consists of three clusters of optical m odules\, the first of which was deployed in 2015. At the moment detector r econstructs both muon tracks and showers produced by high-energy neutrino. We present the preliminary analysis of data acquired coincidentally with IceCube “blazar” IC170922A and LIGO neutron stars merger GW170817 even ts\, and give the upper limits for neutrino fluxes for these event obtaine d at GVD. Finally\, we discuss the development of Baikal-GVD alert system for multimessenger studies.\n\nhttps://indico.particle.mephi.ru/event/22/c ontributions/1367/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1367/ END:VEVENT BEGIN:VEVENT SUMMARY:Performance simulations of the Silicon Tracking System of the CBM Experiment at FAIR DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1365@cern.ch DESCRIPTION:Speakers: Evgeny Lavrik (Universität Tübingen)\nThe Compress ed Baryonic Matter (CBM) experiment at the future Facility for\nAntiproton and Ion Research (FAIR) aims to study the properties of nuclear\nmatter a t high net-baryon densities and moderate temperatures.\nThe Silicon Tracki ng System (STS) is the key detector to reconstruct with\na high efficiency up to 1000 charged particle trajectories created in heavy-ion\ncollisions at interaction rates of up to 10 MHz. It will determine the momentum\nof the particles with a momentum resolution ∆p/p ≈ 1-2% which requires ul tralow\ndetector material budget of 0.3-1% X0 per layer. The detector comp rise eight\nlayers of double-sided silicon microstrip sensors and will be placed inside the 1\nTm superconducting magnet.\nThis poster contribution describes the simulated analog and digital response of\nthe STS and its pe rformance with regard to different geometries\, sensor layouts\nand varied sensor thicknesses. Key metrics such as track and primary vertex reconstr uction\nefficiencies\, momentum resolution will be presented. In addition the\neffect of delta-electrons originating from beam-target interactions o n the detector\nperformance and read-out data rates will be shown.\n\nhttp s://indico.particle.mephi.ru/event/22/contributions/1365/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1365/ END:VEVENT BEGIN:VEVENT SUMMARY:Cosmological Mission of Higgs Boson and Evolution of Universe DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1071@cern.ch DESCRIPTION:Speakers: Ara Avetissian (Yerevan state university\, Observato ry)\nThe original ideas of new theory – “Non-Inflationary Cosmology” (NIC) – and its consequences are manifested: 1. Global hierarchy of Bos e-Einstein statistics’ (BES) at earliest Universe guarantees the formati on of Bose-Einstein condensate in Matter Era (ME). 2. New phenomenon – C osmological Small-Bang – has been disclosed as a consequence of further phase-transition process from BES to FDS in ME. 3. Time-evolution of Planc k constant may be an alternative mechanism for the explanation of cosmolog ical redshift. 4. Higgs boson’s cosmological mission with this hypothesi s disclose fundamental new cosmic scales for ME\, which already is perceiv es by modern physics. A broad scenario is revealing to unify into general model the mechanisms of generation of galaxies and their components (black holes\, massive stars and supernovas). An original road map for theoretic al investigations and astrophysical observations is suggested\, aiming at explanation of morphological varieties of galaxies and their rotation’s profiles. The space-time-energy new fundamental measures in ME describe th e evolution of Universe in ME\, especially the hierarchic structure of gal axies’ groups and clusters\, even illustrate the possible essence of gia nt voids. In suspense of “storage of frozen micro-pieces of BEC” withi n the galactic cosmic rays and relativistic jets\, the experimental advant age of Higgs bosons assure a far-reaching program for the possible compari son of NIC results with experimental data of two major Russian projects: “OLIMPIA” and “Synthesis of Super Heavy Elements”.\n\nhttps://indi co.particle.mephi.ru/event/22/contributions/1071/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1071/ END:VEVENT BEGIN:VEVENT SUMMARY:H -> WW*->lnulnu searches in the ATLAS 13 TeV datа DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1347@cern.ch DESCRIPTION:Speakers: Ekaterina Ramakoti (NRNU MEPhI)\nHiggs boson product ion cross-sections via the gluon–gluon fusion and vector-boson fusion mo des are measured in the $H \\rightarrow WW^{*}\\rightarrow е\\nu\\mu\\nu$ decay channel in the ATLAS experiment at the LHC. The $H \\rightarrow WW^ {*}$ decay channel has the second largest branching fraction and allows to measure Higgs boson production cross-section with good precision. The ana lysis is based on the proton–proton collision data produced at the LHC a t a centre-of-mass energy of 13 TeV and recorded by the ATLAS detector in 2015 and 2016\, corresponding to an integrated luminosity of 36.1 fb$^{− 1}$. The ggF and VBF cross-sections multiplied by the $H \\rightarrow WW^{ *}$ branching ratio arefound to be in agreement with the Standard Model pr edictions.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1347 / LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1347/ END:VEVENT BEGIN:VEVENT SUMMARY:Сompact x-ray spectrometer based on thermoluminescent detectors DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1343@cern.ch DESCRIPTION:Speakers: Gayar Salakhutdinov ()\nSingle-channel compact noise -proof spectrometer (Ø 5х10 mm) is based on the absorption filter method . Spectrometer is an assembly of thermoluminescent detectors made of lithi um fluoride LiF\, that are placed one after another\, which are also used as filters for X-ray spectrum selection. Spectrometer has been developed f or measuring X-ray spectra of micropinch-discharge plasma in the energy ra nge of 1−25 keV. The thermoluminescent LiF detectors are most attractive for use in plasma diagnostics. The thermoluminescent LiF detectors are i mmune to electromagnetic interference\, practically insensitive to ultravi olet radiation\, and do not have a dead surface layer\; at the same time\, their response is linear in a wide dynamic range of the absorbed radiatio n dose (from 20 mSv to 10 Sv). The calibration measurements and test tests demonstrated the good operability and reliability of the compact spectrom eter based on the array of thermoluminescent LiF detectors. The basic expe rimental results obtained in the investigation of the X-ray spectra of pla sma objects are presented.\n\nhttps://indico.particle.mephi.ru/event/22/co ntributions/1343/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1343/ END:VEVENT BEGIN:VEVENT SUMMARY:THE ADAPTIVE-MODULAR TECHNIQUE FOR PRE-PROJECT SIMULATION THE TRAN SPORTATION CHANNELS OF THE RELATIVISTIC CHARGED-PARTICLE BEAMS DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1342@cern.ch DESCRIPTION:Speakers: German Averyanov (National Research Nuclear Universi ty (MEPhI))\nConsidered the numerical simulation technique which providing optimum beam parameters at the transport channel output of electron accel erator. The KATRAN channels design environment used for this purpose has a modular structure includes the basic beam focusing blocks. This allows en abling create and configure the optical system of the accelerator fast and efficiently if a given topology of the transport channel.\n\nhttps://indi co.particle.mephi.ru/event/22/contributions/1342/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1342/ END:VEVENT BEGIN:VEVENT SUMMARY:Modelling of position reconstruction in CENNS1ton DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1340@cern.ch DESCRIPTION:Speakers: Olga Nepochataya ()\nCoherent elastic neutrino nucle us scattering (CENNS) is a process predicted in 1974 but observed for the first time only in 2017 by COHERENT collaboration. Now this collaboration continues CENNS research using detectors with different working materials. One of them is CENNS10 - detector with 10kg of liquid argon (LAr) and two phitomultiplier tubes on the top and on the bottom. Using CENNS-10 as an example COHERENT collaboration is preparing the building of CENNS-1ton - d etector with mass of working material (LAr) about 1 ton. This poster is ab out ability of position reconstruction in this detector. Modelling of diff erent photodetectors configuration using ANTS-2 package will be shown. The goal of this work is comparing different configurations from the point of view of position reconstruction ability and accuracy.\n\nhttps://indico.p article.mephi.ru/event/22/contributions/1340/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1340/ END:VEVENT BEGIN:VEVENT SUMMARY:Project on searching for neutron-antineutron oscillation at the WW R-M reactor DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1338@cern.ch DESCRIPTION:Speakers: Mikhail Chaikovskii (PNPI)\nSupersource of ultracold neutrons on the basis of superfluid helium is under construction in PNPI NRC KI. It must provide UCN density 2-3 orders of magnitude\nhigher than e xisting sources. For the new source we propose an experiment on search for neutron–antineutron oscillations based on the storage of ultracold neut rons in a material trap. The sensitivity of the experiment mostly depends on the trap size and the amount of UCN in it. The results of simulations o f the designed experimental scheme show that the sensitivity can be increa sed by ∼ 10–40 times compared to sensitivity of previous experiment de pending on the model of neutron reflection from walls.\n\nhttps://indico.p article.mephi.ru/event/22/contributions/1338/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1338/ END:VEVENT BEGIN:VEVENT SUMMARY:TOTAL REACTION CROSS SECTIONS OF NEUTRON-RICH LIGHT NUCLEI MEASURE D BY THE COMBAS FRAGMENT-SEPARATOR DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1125@cern.ch DESCRIPTION:Speakers: Erdemchimeg Batchuluun (JINR)\nPreliminary results o f measurements of the total reaction cross sections σR for weakly bound 4 He\, 6He\, 8He\, 7Li\, 8Li\, 9Li\, 11Li\, 7Be\, 9Be\, 10Be\, 11Be\, 12Be\, 8B\, 10B\, 11B and 12B nuclei at energy range (10-45) A MeV with 28Si and 181Ta target are presented. The secondary beams of light nuclei were prod uced by bombardment of the 15N (50 A MeV) primary beam on Be target and se parated by COMBAS fragment-separator. In dispersive focal plane a horizont al slit defined the momentum acceptance as 1% and a wedge degrader of 600 µm Al was installed. The Bρ of the second section of the fragment-separa tor was adjusted for measurements in energy range (10-45) A MeV. The stron g absorption model reproduces the A-dependence of σR\, but not the detail ed structure. We are comparing our experimental data with Glauber multiple scattering theory and preliminary results are obtained.\n\nhttps://indico .particle.mephi.ru/event/22/contributions/1125/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1125/ END:VEVENT BEGIN:VEVENT SUMMARY:Correlations between multiplicities and transverse momenta in nucl eus-nucleus collisions from model with cluster of fused color strings. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1124@cern.ch DESCRIPTION:Speakers: Evgeny Andronov ()\nThe long-range rapidity correlat ions between the multiplicities ($n$-$n$) and the transverse momentum and the multiplicity ($p_{T}$-$n$) of charge particles are analyzed in the fra mework of the simple string inspired model with two types of sources. The sources of the first type correspond to the initial strings formed in a ha dronic collision. The sources of the second type imitate the appearance of the emitters of a new kind resulting from interaction (fusion) of the ini tial strings. The model enabled to describe effectively the influence of t he string fusion effects on the strength both the $n$-$n$ and the $p_{T}$- $n$ correlations. Modification of the model to the analogue of the "core-c orona" mechanism allows to take into account event selection criteria base d on centrality and perform a comparison with existing experimental data o n correlation measurements in nucleus-nucleus collisions at LHC energies. It is shown that string fusion effects leads to change of a sign of the $p _{T}$-$n$ correlation coefficient with decrease of a centrality interval w idth.\n\nThe research was supported by the grant of the Russian Foundation for Basic Research (project 18-32-01055_mol_a).\n\nhttps://indico.particl e.mephi.ru/event/22/contributions/1124/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1124/ END:VEVENT BEGIN:VEVENT SUMMARY:OBSERVATION OF CLUSTER STRUCTURE OF FISSION FRAGMENTS DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1123@cern.ch DESCRIPTION:Speakers: Alexandr Strekalovsky (Joint Institute for Nuclear R esearch)\nIn our previous publications [1–3] we have discussed new origi nal effect appeared at crossing of the metal foils by fission fragments (F Fs). We have observed significant mass deficit in the total mass Ms of the FFs detected in coincidence with ions knocked out from the foil. In serie s of the recent more detailed experiments we have compared event by event the mass of the FF before (Mtt) and after (Mte) it passes the foil. In the light of the results obtained a FF from conventional binary fission is su pposed to be born in the shape isomer state which looks like di-nuclear sy stem consisting of the magic core and lighter cluster. Comparison of the c orrelation mass distributions Mtt-Mte for different metal foils is present ed aimed at testing possible models of the effect.\n\nhttps://indico.parti cle.mephi.ru/event/22/contributions/1123/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1123/ END:VEVENT BEGIN:VEVENT SUMMARY:Strong indications of true quaternary fission of 252Cf(sf) DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1122@cern.ch DESCRIPTION:Speakers: Angelina Tomas ()\nStrong indications of true quater nary fission of 252Cf(sf)\n\nYu.V. Pyatkov 1\, D.V. Kamanin 2 \, A.D. Toma s 1\, Z.I. Goryainova 2\, A.O. Strekalovsky 2\n\n*1 National Nuclear Resea rch University MEPhI (Moscow Engineering Physics Institute)\, Moscow\, Rus sia\n2 Joint Institute for Nuclear Research\, Dubna\, Russia*\n\nAbstract\ n　In our previous publications [1\, 2] we discussed possible physical sc enario standing behind rectangular–like structures in the fission fragme nts mass-correlation distributions from 252Cf(sf) and 235U(nth\, f). The r ectangle is bounded by the known magic nuclei such as 68Ni\, 84Se and othe rs. The fission events aggregated in the rectangle show extremely low tota l kinetic energies. Previously only decay mode with two Ni clusters in the exit channel was discussed. A more complete analysis are presented which gives additional arguments in favor of true quaternary fission of 252Cf (s f).\n\nReferences\n\n1. D.V. Kamanin et al.\, Int. Symposium on Exotic Nuc lei "EXON-2016"\, Kazan\, Russia\, 04–10 September 2016. Conference proc eedings\, Editors: Yu.E. Penionzhkevich\, and Yu.G. Sobolev. Published by World Scientific Publishing Co. Pte. Ltd.\, 2017. p. 243–248. \n2. Yu. V . Pyatkov et al.\, Journal of Physics: Conference Series\, V. 863 (2017) 0 12046.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1122/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1122/ END:VEVENT BEGIN:VEVENT SUMMARY:Virtual pion beams at the LHC and extraction of pion-proton cross- sections DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1188@cern.ch DESCRIPTION:Speakers: Roman Ryutin (NRC "Kurchatov Institute"\, IHEP\, Pro tvino)\nIn the light of the latest data by LHCf collaboration of the LHC o n leading neutrons spectra it is possible to obtain total pion-proton cros s-sections in the TeV energy region. In this work the exact extraction pro cedure is shown. Final numbers for the pion-proton cross-section are colle cted at several different values of the colliding energy and compared with some popular theoretical predictions. Errors of results are estimated.\n\ nhttps://indico.particle.mephi.ru/event/22/contributions/1188/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1188/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigation of properties of Galaxies groups # 933\, 88\, 142\, 1046\, 1101 from CfA2 redshift survey. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1335@cern.ch DESCRIPTION:Speakers: Nhat Khanh Lu ()\nGroups and clusters of galaxies ar e the most massive systems in Metagalaxy and its distinctiveness analysis allows concluding large-scale structure properties. We have analyzed sever al characteristics of galaxies groups # 933\, 88\, 142\, 1046\, 1101 from CfA2 redshift survey. Several peculiarities were separated for group #1101 \, for example\, in the shape of its distribution on angular velocity. Par ticular qualities investigation of motion of galaxies in groups allows stu dying properties of such inhomogeneities and understanding of its nature w hich may be caused by dark matter.\n\nhttps://indico.particle.mephi.ru/eve nt/22/contributions/1335/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1335/ END:VEVENT BEGIN:VEVENT SUMMARY:Forbush Decrease Mechanism in a Magnetic Cloud DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1334@cern.ch DESCRIPTION:Speakers: Anastasia Petukhova (Yu.G. Shafer Institute of Cosmo physical Research and Aeronomy of SB RAS)\nUsing back tracing we research galactic cosmic ray propagation in a moving magnetic cloud having the shap e of magnetic loop. It is obtained that the inductive electric field of an extended magnetic cloud decreases particle energy. Both energy losses and long particle trapping by a magnetic loop produce Forbush decrease. The c alculation results of particle density and the components of uni- and bidi rectional anisotropies are shown. The calculation results generally agree with measurements.\n\nhttps://indico.particle.mephi.ru/event/22/contributi ons/1334/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1334/ END:VEVENT BEGIN:VEVENT SUMMARY:Practical realization of the Force-free Magnetic Field models DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1333@cern.ch DESCRIPTION:Speakers: Anastasia Petukhova (Yu.G. Shafer Institute of Cosmo physical Research and Aeronomy of SB RAS)\nTo apply force-free magnetic fi eld models we present and discuss properties and feathers of the following models: Miller and Turner solution\, modified Miller and Turner solution\ , Romashets and Vandas solution\, Integral model\, Krittinatham and Ruffol o model. These models can be used to interpret in-situ observations of the magnetic flux rope\, study Forbush decrease in magnetic clouds or investi gate transport effects of solar energetic particles injected inside a coro nal mass ejection.\n\nhttps://indico.particle.mephi.ru/event/22/contributi ons/1333/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1333/ END:VEVENT BEGIN:VEVENT SUMMARY:Determination of parameters for the propagation of jets of young s tars and a plasma-focus installation. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1332@cern.ch DESCRIPTION:Speakers: Nazar Shatalov ()\nThe construction of theoretical m odels of astrophysical jet observations\, in which the process of formatio n of collimated outcomes and their acceleration takes place. Observation o f the same distribution of jets also does not provide detailed information about the physical parameters of both the jets themselves and their envir onment. Interaction with these possibilities is acquired by attempts to re create astrophysical conditions by means of laboratory experiments in whic h scaling plasma parameters close to those observed in young jet stars can be achieved. Numerical modeling makes it possible to verify the theoretic al models of these processes\, making it possible to identify parameters t hat are inaccessible to observation.\n\nIn this work\, a numerical simulat ion of the propagation of a plasma bunch in the experimental facility PF-3 and in astrophysical jets was carried out to determine the parameters inf luencing the development of this bunch. The measurement process was starte d at various initial parameters of the system\, after which there was a de pendence on these parameters\, as a rule\, at the initial and final moment s of time. An analytical estimate of the collimation angle was also obtain ed. The results in this paper are necessary to determine the unknown param eters of this system\, such as: the density of the bunch and the initial v elocity of the bunch.\n\nhttps://indico.particle.mephi.ru/event/22/contrib utions/1332/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1332/ END:VEVENT BEGIN:VEVENT SUMMARY:Simulation of nonrelativistic jets using a solution of the Grad-Sh afranov equation as the initial condition DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1331@cern.ch DESCRIPTION:Speakers: Ilia Kalashnikov (National Research Nuclear Universi ty MEPhI)\nThere are several problems in the numerical simulation of jets of young stars: the results of calculations depend very much on the initia l conditions\, most of which are unknown from observational data. Analytic al approaches\, based on the solution of the Grad-Shafranov equation\, can only provide a stationary one-dimensional picture of what is happening.\n \nThe purpose of this work is to combine the above two approaches\, using the plasma configuration and its magnetic field\, obtained by solving the Grad-Shafranov equation\, as the initial conditions for the magnetohydrody namic modeling of a jet. The dynamics of jet propagation through the surro unding space was investigated\, morphology similar to the morphology of th e observed jets was obtained. Also the stability of the solution of the Gr ad-Shafranov equation with finite perturbations was numerically investigat ed.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1331/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1331/ END:VEVENT BEGIN:VEVENT SUMMARY:Search and study for extensive air shower events in the TUS detect or data DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1326@cern.ch DESCRIPTION:Speakers: Maria Lavrova (Joint Institute for Nuclear Research) \nThe TUS experiment is designed to investigate the ultra high energy cosm ic ray (UHECR) at energy ~ 100 EeV from the space orbit by the UV radiatio n measurement of extensive air showers (EAS). It was launched on board the “Lomonosov” satellite from the Vostochny Cosmodrome on April 28\, 201 6 for 5 years of data taking. It is the first orbital telescope aimed for such measurements. The main mode of operation has 0.8 us temporal resolut ion with a 200 us duration of measured waveforms. Spatial resolution in th e atmosphere is 5 km with a total field of view of about 80x80 km^2. There are two main parts of the detector: a modular Fresnel mirror and a photo receiver matrix with the corresponding DAQ. The TUS apparatus structure\, methods of UHECR on-line selection and a multi-level algorithm for the sea rch of EAS-like events was developed and applied to the TUS data set analy sis. A few UHECR EAS candidates were found. The preliminary results of the TUS data analysis\, including the PMT relative calibration\, search and s tudy of candidates for the UHECR event are presented.\n\nhttps://indico.pa rticle.mephi.ru/event/22/contributions/1326/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1326/ END:VEVENT BEGIN:VEVENT SUMMARY:The response of the PRISMA-32 and NEVOD setups to the passage of t he EAS DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1325@cern.ch DESCRIPTION:Speakers: Fedor Bogdanov ()\nThe PRISMA-32 setup consists of t wo independently operating clusters which include sixteen scintillation-ty pe en-detectors based on inorganic scintillator ZnSAg + LiF. Detectors of the setup are located on the fourth floor of the Experimental complex NEVO D building on the territory of the MEPhI. PRISMA-32 is deployed above the Cherenkov water calorimeter (CWC)\; the distance between the detectors is 2.5 m and 5 m\, the total area of the setup is ~ 500 m2. The PRISMA-32 reg isters two main EAS components - electron-photon and neutrons - throughout the setup area. The CWC is a water tank with a volume of 2000 cubic meter s in which the registration system of 91 quasispherical modules with six F EU-200 photomultipliers looking in different directions is deployed. The r esponses of the two presented detectors to the passage of the EAS are anal yzed.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1325/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1325/ END:VEVENT BEGIN:VEVENT SUMMARY:Axionlike particle searches by means of the GAMMA-400 gamma-ray te lescope DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1324@cern.ch DESCRIPTION:Speakers: Andrey Egorov (Lebedev Physical Institute of the Rus sian Academy of Sciences)\nThe existence of axionlike particles (ALPs) is predicted by many extensions of the Standard Model. ALPs represent very pr obable and well motivated candidate for the role of dark matter. ALPs may manifest themselves through interaction with photons – particularly\, th rough photon-ALP conversion in magnetic fields. This hypothetical process is able to solve a big astrophysical problem of an anomalous transparency of the Universe for GeV-TeV photons. Besides that\, the potential conversi on have been naturally employed for ALP search and constraining their prop erties. In our work we study the potential of the planned GAMMA-400 telesc ope to detect the ALP signal or at least constrain further the ALP propert ies by analyzing the spectra of typical targets. These include gamma-ray p ulsars – particularly\, PSR J2021+3651\, which has tentative ALP signatu res in its spectrum\; NGC 1275 (central galaxy of the Perseus cluster) and others. We also evaluate the potential of the joint analysis of data from GAMMA-400 and other telescopes – Fermi-LAT\, CTA\, etc.\n\nhttps://indi co.particle.mephi.ru/event/22/contributions/1324/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1324/ END:VEVENT BEGIN:VEVENT SUMMARY:Radiative transitions of electrons between Landau levels in a mode rately strong magnetic field DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1323@cern.ch DESCRIPTION:Speakers: Olga Zabrodina (Yaroslavl State University)\nWe inve stigate the processes of radiative transitions of electrons between the La ndau levels\, $e_{(\\ell)} \\to e_{(n)} + \\gamma$\, in a moderately stron g magnetic field. Under such conditions\, it is necessary to take into acc ount transitions in which both the initial and final electrons can be in s tates corresponding to arbitrary Landau levels. The results obtained can b e used in calculating the efficiency of the electron-positron plasma gener ation under the conditions of the Kerr black hole accretion disk.\n\nhttps ://indico.particle.mephi.ru/event/22/contributions/1323/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1323/ END:VEVENT BEGIN:VEVENT SUMMARY:Modernization of the pulse shape discrimination method for neutron and gamma quanta in scintillation detector DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1302@cern.ch DESCRIPTION:Speakers: Alexander Chepurnov (Skobeltsyn Institute of Nuclear Physics\, Moscow State University)\, Mikhail Kirsanov (NRNU MEPhI)\nDetec tors based on organic scintillators are widely used in the tasks when fast neutrons in the presence of gamma radiation are necessary to detect. Such tasks are control of spent nuclear fuel\, measurement of the yield of fas t neutrons from neutron generators\, monitoring of neutron and gamma backg round in underground low-background experiments (neutrino and dark matter detectors)\, and environmental monitoring. There are fast\, slow component s of scintillator de-excitation in such detectors and an intensity of slow component depends on the type of the detected particle.\nIn this paper\, we investigated the efficiency of several known and two new methods of dig ital pulse shape discrimination for neutrons and gamma quanta. Experimenta l data were obtained on a setup consists of a Pu-Be neutron source\, organ ic monocrystalline p-terphenyl scintillation detector and 14 bits\, 500 MH z sampling rate flash-ADC with capability to store and upload to the host computer long waveforms for further analysis. \nA comparison is made in be tween the results of using traditional and new methods for calculating the signal separation efficiency of Figure of Merit (FOM). The best known fro m the literature value of the efficiency of neutron and gamma quanta discr imination for the Pu-Be source is FOM = 1.5. We obtained the separation ef ficiency FOM = 1.77 in the scintillation detector with the p-terphenyl cry stal\, by a new method. Note also that for the known liquid scintillator B C-501A FOM≈1.\nA new method of scintillation detector pulse shape discr imination from neutrons and gamma quanta is used to detect the neutron yie ld from compact neutron generator that is created on the basis of carbon n anotubes.\n\nThe work was supported by a program of the ministry of educat ion and science of the Russian Federation for higher education establishme nts\, project №14.578.21.0192 (RFMEFI57816X0192).\n\nhttps://indico.part icle.mephi.ru/event/22/contributions/1302/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1302/ END:VEVENT BEGIN:VEVENT SUMMARY:Comparing EAS registered with at PRISMA-32 array and CWC NEVOD DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1299@cern.ch DESCRIPTION:Speakers: Dmitry Gromushkin (MEPhI)\nThe paper presents the da ta on comparing events recorded with two detectors of the Experimental com plex NEVOD: PRISMA-32 array and Cherenkov water calorimeter (CWC) NEVOD. P RISMA-32 is an array for simultaneous registration of the electron-photon and neutron components of the EAS and consists of 32 en-detectors deployed over the area of ~ 500 m2\, along the perimeter of the CWC NEVOD. CWC NEV OD is a detector of a calorimetric type with a volume of 2000 cubic meters \, in which the registration system of 91 quasispherical modules (546 FEU- 200 photomultipliers) is placed. CWC provides measurement of the intensity of Cerenkov radiation from any direction with practically the same effici ency. The results of comparison of jointly registered events with differen t selection criteria are presented.\n\nhttps://indico.particle.mephi.ru/ev ent/22/contributions/1299/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1299/ END:VEVENT BEGIN:VEVENT SUMMARY:A cluster approach to the analysis of experimental data of the NEV OD-EAS shower array DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1298@cern.ch DESCRIPTION:Speakers: Ivan Shulzhenko (National Research Nuclear Universit y MEPhI (Moscow Engineering Physics Institute))\nThe NEVOD-EAS array for t he detection of extensive air showers in the energy range 10^15−10^17 eV is being created in MEPhI on the basis of the Experimental complex NEVOD. It is aimed at independent estimations of the size\, axis position and ar rival direction of EAS registered with other detectors of the complex.\nSi nce the NEVOD-EAS is being created at a densely built territory and detect ing elements cannot be deployed in the same plane like in usual air shower arrays\, its registering system is organized in a cluster principle\, and data analysis is performed using a newly developed cluster approach. The NEVOD-EAS cluster is an independent system including 16 counters of EAS el ectron-photon component and registering electronics. The cluster electroni cs digitizes signals\, selects and time-stamps local events and transfers information to the central DAQ post. Events from different clusters are th en combined according to their timestamps. The features of the developed c luster approach to the analysis of the NEVOD-EAS shower array experimental data are described.\n\nhttps://indico.particle.mephi.ru/event/22/contribu tions/1298/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1298/ END:VEVENT BEGIN:VEVENT SUMMARY:Test beam studies of light yield\, time and coordinate resolutions of scintillation detector prototype with SiPM readout for space-based gam ma-telescope GAMMA-400 DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1285@cern.ch DESCRIPTION:Speakers: Andrey Arkhangelskiy (NRNU MEPhI)\nPrototype detecto r based on long BC-408 scintillators with SiPM readout for space-based gam ma-telescope GAMMA-400 was tested in 100-300 MeV secondary positron beam o f synchrotron C-25P «PAKHRA» of Lebedev Physical Institute. The measurem ent setup\, design concepts for the prototype detector and chosen solution s together with some test results are discussed.\n\nhttps://indico.particl e.mephi.ru/event/22/contributions/1285/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1285/ END:VEVENT BEGIN:VEVENT SUMMARY:Monte-Carlo study of long-range correlations of average transverse momentum and multiplicity for strange particles in pp-collisions at the L HC energies. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1284@cern.ch DESCRIPTION:Speakers: Vladislav Sandul ()\nOne of the main directions of m odern high-energy physics research is the study of quark-gluon plasma (QGP ) – a super-hot and super-dense state of strongly interacting matter tha t could be formed in the collisions of relativistic heavy nuclei. Recently some signals of the QGP formation were obtained in high-energy $pp$-colli sions at the Large Hadron Collider (LHC) [1]\, so the interest in the proc esses occurring in these collisions has increased.\n \nOne of the new inst ruments to study the high-energy particle collisions at the LHC was propos ed in [2] to measure the long-range correlations (LRC) between quantities observed in different (pseudo)rapidity intervals – so-called “forward ” and “backward” windows\, separated by some gap. The appearance of non-negligible values of LRC coefficients might bring important informatio n on the role of the initial stages of hadron-hadron collisions preceding the formation of the QGP.\nWe present in this report the MC-based study of long-range correlations between average transverse momentum $〈p_T 〉$ and multiplicity $n$ for particles containing strange quarks. The analysis of LRC in production of K-mesons and Lambda-hyperons in $pp$-collisions a t $\\sqrt{s}=7$ TeV is done in the framework of PYTHIA 8 event generator [ 3]. The collectivity effects in pp-collisions are taken into account in th ese MC studies by formation of a so-called “flavour rope”\, which is h adronized with a larger\, effective string tension [4\, 5]\, providing the increase of strangeness yield.\n\nThe dependencies of correlation coeffic ients $b_{n-n}$\, $b_{p_T-n}$ and $b_{p_T-p_T}$ on the gap between forward and backward pseudorapidity windows and on the width of the forward pseud orapidity window are studied. The behavior of correlation coefficients for strange particles is compared with the behavior of correlation coefficien ts for charged particles.\nIt is demonstrated that for all studied types o f particles positive $n$-$n$\, $p_T$-$n$ and $p_T$-$p_T$ correlations are observed. The correlation coefficients of strange particles in each of the considered cases are noticeably less than for charged particles. The diff erence of the behavior of the correlation coefficients of charged particle s and strange particles is discussed. The obtained results do not contradi ct the model of color string formation and fusion that might occur at the initial stage of $pp$-collision.\n\n\n 1. ALICE Collaboration. Enhanced pr oduction of multi-strange hadrons in high-multiplicity proton–proton col lisions // Nature Physics 13\, 535–539. 2017.\n 2. ALICE Collaboration\, B. Alessandro et al. ALICE: Physics performance report\, volume II // J.P hys. G 32\, 1295-2040. 2006.\n 3. T. Sjostrand\, S. Mrenna\, P. Skands. An Introduction to PYTHIA 8.2 // Comput. Phys. Commun. 178\, 852-867. 2008.\ n 4. C. Bierlich. Rope Hadronization and Strange Particle Production // EP J Web of Conferences 171\, 14003. 2018.\n 5. C. Bierlich\, G. Gustafson\, L. Lönnblad. Effects of overlapping strings in pp collisions // J. High E nerg. Phys. 2015: 148. 2015.\n\nhttps://indico.particle.mephi.ru/event/22/ contributions/1284/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1284/ END:VEVENT BEGIN:VEVENT SUMMARY:cosmic rays in the Earth's atmosphere DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1283@cern.ch DESCRIPTION:Speakers: rafik sedrati (faculty of science and technology\,un iversity of soukahras\,algeria)\nPrimary particles of cosmic rays originat e in outer space and when they reach the Earth\, they cause a series of nu clear reactions with the molecules and particles presented in the Earth’ s atmosphere and therefore\, lead to the creation of many secondary partic les in the form of extensive air showers. By the increase in altitude\, th e layer of the protective atmosphere being thinner and therefore\, exposur e to cosmic radiation becomes more important. Thus\, calculation of the fl ux of the cosmic rays in the atmosphere is very important for the evaluati on of the received dose. The purpose of this work is to discuss the impact of cosmic rays in the Earth’s atmosphere using the latest experimental data and the most recent version of the EXPACS code.\n\nhttps://indico.par ticle.mephi.ru/event/22/contributions/1283/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1283/ END:VEVENT BEGIN:VEVENT SUMMARY:Performance​ for​ anisotropic​ flow​ measurements​ of​ the​ future​ CBM​ experiment​ at​ FAIR DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1282@cern.ch DESCRIPTION:Speakers: Ilya Selyuzhenkov (GSI - Helmholtzzentrum fur Schwer ionenforschung GmbH (DE))\, Viktor Klochkov (GSI Helmholtzzentrum für Sch werionenforschung / Frankfurt Uni)\, Evgeny Kashirin (National Research Nu clear University MEPhI)\, Oleg Golosov ()\nThe Compressed Baryonic Matter experiment (CBM) at FAIR aims to study the QCD phase diagram at high net b aryon densities and moderate temperatures using collisions of heavy ions a t center-of-mass energies of a few GeV per nucleon. Anisotropic transverse flow is among the key observables to study the properties of matter creat ed in such collisions.\n\nThe CBM performance for anisotropic flow measure ments is studied with Monte-Carlo simulations using gold ions at SIS-100 e nergies with lab momentum of 3.5-12 AGeV/c employing different heavy-ion e vent generators. Various combinations of CBM detector subsystems are used to investigate the possible systematic biases in flow measurement and to s tudy the effects of detector azimuthal non-uniformity. The resulting perfo rmance of CBM for flow measurements is demonstrated for different harmonic s of identified charged hadron anisotropic flow as a function of rapidity and transverse momentum in different centrality classes.\n\nThe measuremen t techniques developed for CBM were also validated with the experimental d ata recently collected by the NA61/SHINE experiment at CERN SPS for Pb-Pb collisions at the beam momenta 13 and 30 AGeV/c (the first energy point is close to the top SIS-100 energy). This is also of importance for CBM perf ormance studies\, because both CBM and the NA61/SHINE are fixed target exp eriments and have a similar Projectile Spectators Detector (PSD) as a part of their setup.\n\nhttps://indico.particle.mephi.ru/event/22/contribution s/1282/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1282/ END:VEVENT BEGIN:VEVENT SUMMARY:Additional sources of antineitrinos in experiments on nuclear reac tors DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1281@cern.ch DESCRIPTION:Speakers: Dmitry Larin ()\nThe flux and spectrum of reactor an tineitrinos depend not only on the current reactor state\, which is specif ied by the power level and the nuclear fuel used\, but also on the amount of spent fuel (SF) in the pool where spent fuel placed after refueling. Th e antineutrino spectrum from SF pool observed in 30 cubic meters detector at a distance 400 m is presented in the work.\n\nhttps://indico.particle.m ephi.ru/event/22/contributions/1281/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1281/ END:VEVENT BEGIN:VEVENT SUMMARY:The possibility of sterile neutrino search with $^{144}$Ce - $^{14 4}$Pr source and liquid scintillation detectors DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1280@cern.ch DESCRIPTION:Speakers: Irina Lomskaia (PNPI NRC KI)\nExpected energy spectr a calculations for large volume liquid scintillation detectors to inverse $\\beta$-decay for anti-neutrinos produced by $^{144}$Ce - $^{144}$Pr arti ficial source have been performed. \nThe calculations were carried out thr ough Monte-Carlo method within GEANT4.10 framework and were purposed to se arch for neutrino oscillation to sterile eigenstate. \nThe analysis of rel ative sensitivity to oscillation parameters for different detector shapes has been performed.\n\nhttps://indico.particle.mephi.ru/event/22/contribut ions/1280/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1280/ END:VEVENT BEGIN:VEVENT SUMMARY:Calculated spectrum of muon-induced cascades at great depths of wa ter or ice DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1279@cern.ch DESCRIPTION:Speakers: Egor Sozinov ()\, Dmitriy Evdokimov (MEPhI)\, Semyon Khokhlov (National Research Nuclear University MEPhI)\nModern existing an d being developed Cherenkov water detectors for neutrino astrophysics have a cubic-kilometers volume. These detectors are deployed at great depths o f water or ice and\, in addition to neutrinos\, register atmospheric muons with a high energy threshold (hundreds GeV). The energy spectrum of muons with energies above 100 TeV is extremely poorly studied. Knowing the spec trum will allow testing the models of hadron interaction and to resolve so me disputed issues of cosmic ray physics. One of the best ways for investi gations of muon spectrum is measuring the spectrum of stochastic energy lo sses (cascades\, originating mainly due to muon bremsstrahlung). The resul ts of calculations of cascade spectrum at a great depths of water or ice a re discussed.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1 279/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1279/ END:VEVENT BEGIN:VEVENT SUMMARY:Environmental decoherence in atmospheric neutrinos with IceCube DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1278@cern.ch DESCRIPTION:Speakers: Thomas Stuttard (Niels Bohr Institute)\nDissipative interactions between neutrinos and the environment in which they propagate lead to quantum decoherence. Such an environment is predicted by quantum gravity models featuring a 'foamy' space-time structure. Environmental dec oherence degrades the interference between neutrino states that is respons ible for neutrino oscillations\, resulting in exponential damping of oscil lation probability with propagation distance. The IceCube detector at the South Pole measures atmospheric neutrinos that have traversed a range of d istances\, up to 12\,742 km for neutrinos crossing the Earth’s diameter\ , making it sensitive to decoherence effects. In this poster\, a phenomeno logical model of neutrino environmental decoherence and the resulting sign al in IceCube is presented\, and the measurement sensitivity estimated for a 6 year data sample.\n\nhttps://indico.particle.mephi.ru/event/22/contri butions/1278/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1278/ END:VEVENT BEGIN:VEVENT SUMMARY:Поиск тяжелых нейтральных лептонов в эксперименте NA62 (CERN) DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1277@cern.ch DESCRIPTION:Speakers: Viktoriia Kurochka ()\nОбнаруженные ос цилляции нейтрино свидетельствуют о том \, что Стандартная Модель (СМ) элементарн ых частиц не является полной. Но пока неи звестны свойства частиц\, которые скрыва ются за этим явлением. В некоторых расши рениях СМ естественным образом вводятся тяжелые стерильные нейтрино (нейтральн ые лептоны). \nПоиск тяжелых стерильных н ейтрино (нейтральных лептонов)\, N\, выпол нен в эксперименте NA62 (CERN)\, основной цель ю которого является измерение с точност ью около 10% вероятности редкого распада K +→π+νν. Измерение этого распада\, рассчит анного с высокой точностью в СМ\, являетс я чувствительным тестом различных расши рений СМ.\nПоиск тяжелых нейтрино в экспе рименте NA62 осуществляется при измерении распадов на один заряженный лептон (мюо н или электрон).\nВ докладе будет кратко о писана установка NA62 и ее параметры. Буду т разобраны методы моделирования распад ов каонов\, и изложены критерии отбора со бытий K+→l+N (l = e+\, μ+)\; рассмотрены методы анализа экспериментальных данных по пои ску стерильных нейтрино\, проанализиров аны основные источники фона и приведены их величины. В докладе будут представлен ы новые результаты: ограничения на уровн е 10^(-6)-10^(-7) на параметры смешивания стери льных нейтрино |Ue4|^2 в диапазоне масс 170-450 МэВ и |Uμ4|^2 в диапазоне масс 240-370 МэВ\, пол ученные на основе данных\, накопленных в 2015 году. Также будут обсуждаться дальней шие перспективы по поиску стерильных не йтрино в эксперименте NA62.\n\nhttps://indico.particle. mephi.ru/event/22/contributions/1277/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1277/ END:VEVENT BEGIN:VEVENT SUMMARY:Influence of atomic effects on antineutrino spectrum of Pr-144 DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1276@cern.ch DESCRIPTION:Speakers: Oleg Titov ()\n$^{144}$Pr isotope is one of the most favorable antineutrino sources for short-baseline experiments aimed at st erile neutrino search. These experiments require precise theoretical knowl edge of the antineutrino spectrum. We calculate antineutrino spectrum of $ ^{144}$Pr taking into account various corrections. Particular attention is given to atomic effects.\n\nhttps://indico.particle.mephi.ru/event/22/con tributions/1276/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1276/ END:VEVENT BEGIN:VEVENT SUMMARY:Energy deposition and anisotropic flow comparative analysis using FHCal in MPD experiment (NICA) DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1274@cern.ch DESCRIPTION:Speakers: Peter Parfenov ()\nMulti-Purpose Detector (MPD) expe riment at NICA collider has a potential of discoveries in the area of QCD phase diagram with high net baryon densities and moderate temperatures. An isotropic transverse flow is one of the key observables to study the prope rties of matter created in heavy-ion collisions. MPD performance for aniso tropic flow measurements is studied with Monte-Carlo simulations of gold i ons at NICA energies \\sqrt{s_NN}=4-11 GeV using different heavy-ion event generators. Different combinations of the MPD detector subsystems are use d to investigate the possible systematic biases in flow measurement and to study effects of detector azimuthal non-uniformity. Resulting performance of the MPD for flow measurements will be demonstrated for directed and el liptic flow of identified charged hadrons as a function of rapidity and tr ansverse momentum in different centrality classes.\n\nhttps://indico.parti cle.mephi.ru/event/22/contributions/1274/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1274/ END:VEVENT BEGIN:VEVENT SUMMARY:Kinks in the relativistic model with logarithmic nonlinearity DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1262@cern.ch DESCRIPTION:Speakers: Vakhid Gani (National Research Nuclear University ME PhI (Moscow Engineering Physics Institute)\, 115409 Moscow\, Russia)\nWe s tudy the properties of a certain class of solutions of a relativistic mode l with the logarithmic nonlinearity. We show that such a model have two ty pes of solutions: topologically trivial (gaussons) and topologically non-t rivial (kinks). For the kink-antikink scattering\, we have found a critica l value of the initial velocity $v_\\mathrm{cr}$\, which separates two dif ferent scenarios of scattering. At the initial velocities $v_\\mathrm{in} v_\\mathrm{cr}$\, the kinks collide\, bounce and eventually escape to inf inities. During this process\, the higher initial velocity is\, the greate r is the elasticity of the collision. We also study excitation spectrum of the kink solution.\n\nhttps://indico.particle.mephi.ru/event/22/contribut ions/1262/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1262/ END:VEVENT BEGIN:VEVENT SUMMARY:The probe of the Matrix Element Method at the NLO level in the Hig gs boson studies DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1260@cern.ch DESCRIPTION:Speakers: Nikita Belyaev ()\nIn this talk the description of p ossible realisation of NLO Mateix Element Method is presented and probed w ith the Higgs boson decays. The comparison of LO and NLO approaches is dem onstrated and the separation power of each approach is estimated.\n\nhttps ://indico.particle.mephi.ru/event/22/contributions/1260/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1260/ END:VEVENT BEGIN:VEVENT SUMMARY:Two-loop master integral for the correlator of two composite fermi on currents DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1259@cern.ch DESCRIPTION:Speakers: Nikolay Volchanskiy (BLTPh JINR & Southern Federal U .)\nWe calculate two-loop massless correlator $G(n_1\,n_2\,n_3\,n_4\,n_5\; x\,y\;D)$ of two composite vertexes with Bjorken fractions $x$ and $y$\, a rbitrary indices $n_i$\, and arbitrary space-time dimension\, $D$. A close d-form expression for this two-loop kite Feynman diagram with composite ve rtexes is given in terms of a twofold hypergeometric series. In some speci al cases it reduces to a sum of univariate hypergeometric functions $_3F_2 $.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1259/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1259/ END:VEVENT BEGIN:VEVENT SUMMARY:Future e+e- colliders and study of color reconnection effects DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1256@cern.ch DESCRIPTION:Speakers: Nelli Pukhaeva (JINR)\nAt future e+e- colliders inte gral luminosity will amount to several ab-1 to provide the needed statisti cs for precision physics measurements (both SM and BSM). \nNew measurement s which will be possible with large statistics and high energies accessibl e at the future e+e- colliders would allow detailed study of the CR phenom enon\, specially in the hadronic $WW$ decays\, and would be help for other studies: presents of this effects in $t\\bar t$ and in Higgs decays.\n\nh ttps://indico.particle.mephi.ru/event/22/contributions/1256/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1256/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of the signal readout and processing ASIC for GEM dete ctors DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1249@cern.ch DESCRIPTION:Speakers: Ivan Bulbakov (NRNU MEPHI)\nDesign approach and stru cture of an Application-Specific Integrated Circuit (ASIC) for multichanne l Gas Electron Multiplier (GEM) detectors are presented. This ASIC is desi gned for use in tracking and calorimetric systems of large physical experi ments such as CBM (FAIR\, Darmstadt) and MPD (NICA\, Dubna). \nThe amount of data to be processed by ASIC is related to the channel event rate\, AD C resolution\, and sampling rate. For the CBM experiment the average event rate is 1 MHz\, with 10-bit ADC resolution and 200 ns peaking time. That results in about 100 Mbit/s of generated raw data for each channel. Moder n ASICs usually contain at least 32 readout channels\, therefore the outpu t data rate for each of them is not less than 3.2 Gbit/s.\nThe ASIC contai ns a digital data processing block\, which particularly calculates a signa l peak amplitude\, event timestamp and also determines signal shape and pi le-ups. The block allows transmitting values of interest only\, significan tly reducing the output data flow\, and using a less complex interface cir cuit at lower power consumption.\n\nhttps://indico.particle.mephi.ru/event /22/contributions/1249/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1249/ END:VEVENT BEGIN:VEVENT SUMMARY:Design flow of the electronic units of multichannel detector syste ms for large physical experiments DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1246@cern.ch DESCRIPTION:Speakers: Dmitry Normanov (NRNU Mephi)\nThe conducting of phys ical experiments at large accelerator facilities\, of the FAIR (Germany) t ype requires the provision of readout and processing of signals from a lar ge number of detectors. To solve these tasks there are used complicated el ectronic units\, which are designed as application specific integrated cir cuits (ASIC). The design process is subject to hard requirements\, bound w ith reading out a great number of detector signals\, high frequency of sig nal emergence\, diversity of data types\, necessary for analysing the resu lts of experiment. The report presents the description of a mixed ASIC des ign flow with account of the requirements of large physical experiments. The given flow permits to reduce design time\, to increase reliability and optimise the ASIC architecture. Probation of the flow was executed in the course of designing IC prototypes for the 180 and 65 nm technologies\, executing the functions of data processing and readout.\n\nhttps://indico. particle.mephi.ru/event/22/contributions/1246/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1246/ END:VEVENT BEGIN:VEVENT SUMMARY:Simulation of Gamma-400 calorimeter physical characteristics with considering of optical processes in scintillation crystal. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1245@cern.ch DESCRIPTION:Speakers: Irina Chernysheva (NRNU MEPhI\, LPI RAS)\nSimulation of Gamma-400 calorimeter physical characteristics with considering proces ses of generation\, propagation and detection of optical photons in scint illation crystal was performed using Geant4 toolkit with G4OpticalPhoton l ibrary\, which contains the characteristics of processes with participatio n of optical photons and its processing procedures. Including of optical p rocesses into simulation of scintillation material allow to investigate th e influence of following processes (light yield fluctuations\, absorption\ , reflection and refraction on material borders\, light detector character istics) on the most important detection characteristics of scintillation c alorimeter.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/124 5/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1245/ END:VEVENT BEGIN:VEVENT SUMMARY:On application of wobbler in experiments with cylindrical targets DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1244@cern.ch DESCRIPTION:Speakers: H. Barminova (NRNU MEPhI)\nFor the experiments with irradiation of cylindrical targets by intense ion beams which are actual i n some fundamental and applied researches (laboratory astrophysics\, medic ine\, etc) it is necessary to shape the irradiating beam with hollow geome try. Among the various methods of hollow beam formation the wobbling is of interest. The deflecting plates or RF-cavities with phase shift of electr omagnetic fields create the fast beam rotation. In the case of the suitabl e relation between the velocity of the rotation and the characteristic vel ocity of the processes inside the target substance arising from the irradi ation (for instance\, the velocity of the front motion of the shock wave c aused by the target implosion) the beam may be considered as hollow one. I n this report some problems of the method are discussed\, resulting in the asymmetry of the irradiation. The calculation results are presented.\n\nh ttps://indico.particle.mephi.ru/event/22/contributions/1244/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1244/ END:VEVENT BEGIN:VEVENT SUMMARY:Energy deposition distribution in GGG crystal spaghetti calorimete r during NICA experiments DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1243@cern.ch DESCRIPTION:Speakers: Ekaterina Mosolova (Joint Institute for Nuclear Rese arch/Peter the Great St. Petersburg Polytechnic University)\nUsing the Mon te Carlo method (GEANT4)\, energy deposit distributions were obtained for incident gamma photons with energy from $256$ MeV up to $8192$ MeV interac ting with the various parts of the spaghetti calorimeter (SPACAL). The SPA CAL consists of nine scintillation single crystal gallium-gadolinium garne t (GGG) rods with dimensions $3\\times3\\times100$ $\\text{mm}^3$ forming a $3\\times3$ array surrounded by tungsten. The distribution of energy dep osit on the boundary of the connection and in the crosshairs of cells were also considered. Distributions were obtained for the central crystal\, th e ring of eight crystals surrounding the central crystal\, and over all th e crystals.\n\nAs a result\, the amount of energy that remains in the crys tal surrounded by tungsten equal to $34\\%$ of the energy released in a pu re GGG scintillator when a photons hit the crystal. Released energy in pho ton tungsten interaction lies in range from $1.65\\%$ to $4.5\\%$ and depe nds on incident point position.\n\nThe high light yield of GGG crystal $3\ \times3$ array detector allows for performing measurements in nuclotron-ba sed ion collider facility (NICA) experiments at the Joint Institute for Nu clear Research (JINR).\n\nhttps://indico.particle.mephi.ru/event/22/contri butions/1243/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1243/ END:VEVENT BEGIN:VEVENT SUMMARY:Arg(NEST) - Argon Noble Element Simulation Technique DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1242@cern.ch DESCRIPTION:Speakers: Ekaterina Kozlova ()\nAuthors: E.S.Kozlova on behalf the NEST collaboration\n\nThe Noble Element Simulation Technique (NEST) i s a comprehensive mostly-empirical standalone package for complete and acc urate simulation both the scintillation light and ionization yields of nob le elements for many particle types.\n\nDevelopment of argon NEST is discu ssed\; first results of arg(NEST) v2.0 are presented.\n\nhttps://indico.pa rticle.mephi.ru/event/22/contributions/1242/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1242/ END:VEVENT BEGIN:VEVENT SUMMARY:Разработка жидких органических сци нтилляторов на основе ЛАБ для решения фу ндаментальных и прикладных задач физики нейтрино DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1241@cern.ch DESCRIPTION:Speakers: Denis Kuznetsov ()\nЖидкие органичес кие сцинтилляторы (ЖОС) в настоящее врем я являются единственным материалом\, поз воляющим создавать многотонные сцинтил ляционные детекторы оптимальной геомет рии для исследований в области физики не йтрино. Широкое распространение в качес тве базового растворителя в таких сцинт илляторах в мировой практике получил ли нейный алкилбензол (ЛАБ). В настоящее вре мя в Лаборатории физики нейтрино НИЦ «Ку рчатовский институт» создаётся экспери ментальный комплекс для производства и исследования ЖОС на основе ЛАБ объёмом в несколько кубометров. Проведённые изме рения показывают\, что синтезированный н ами ЖОС остаётся стабильным в пределах 5% в течение 225 суток наблюдений.\n\nhttps://indico. particle.mephi.ru/event/22/contributions/1241/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1241/ END:VEVENT BEGIN:VEVENT SUMMARY:A four-layer gaseous detector allowing to measure the energy of ch arged particles DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1239@cern.ch DESCRIPTION:Speakers: Stanislav Potashev (Institute for Nuclear Research o f the Russian Academy of Sciences)\nA four-layer gaseous detector for elec trons and other charged particles is developed. A charged particle passing through a thin window produces ionization in four consecutive gas gaps se parated by absorbers. The gas gain about of $10^{4}$ allows one to determi ne four signal amplitudes under the control of any combination of these si gnals. Simultaneous measurement of the ionization losses of the particle i n the successive layers of the detector makes it possible to determine the energy of the passing particle.\n\nhttps://indico.particle.mephi.ru/even t/22/contributions/1239/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1239/ END:VEVENT BEGIN:VEVENT SUMMARY:Event identification with machine learning in DarkSide-50 experime nt DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1237@cern.ch DESCRIPTION:Speakers: Alexey Grobov ()\nA study of electron recoil and nuc lear recoil identification in liquid argon is presented. In the DarkSide-5 0 experiment identification based on f90 criterion and selection cuts. We propose a new approach with use of machine learning techniques. The idea i s to implement pulse shape discrimination through multi layer perceptron ( MLP). We use calibration data to train the classifier and then test it on data collected during dark matter search runs with underground argon (UAr) .\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1237/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1237/ END:VEVENT BEGIN:VEVENT SUMMARY:New Tm-containing bolometer for resonat absorption of solar axions . DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1236@cern.ch DESCRIPTION:Speakers: D.A. Semenov (Petersburg Nuclear Physics Institute N RC Kurchatov Institute)\nA search for resonant absorption of the solar axi on by $^1$$^6$$^9$Tm nuclei will be performed using the Tm-containing bolo meters installed inside the low-background setup at the underground labora tory. The thulium crystal Tm$_3$Al$_5$O$_1$$_2$ have been grown and tested for the first time as a bolometric detector. The expected sensitivity of 1 kg Tm-bolometer to axion-photon g$_A$$_γ$ and axion-electron g$_A$$_e$ coupling constants for axions with mass in the range (10 eV - 8 keV) is st ronger than the present astrophysical limits.\n\nhttps://indico.particle.m ephi.ru/event/22/contributions/1236/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1236/ END:VEVENT BEGIN:VEVENT SUMMARY:Сompact neutron generators for the calibration of low background experiments DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1235@cern.ch DESCRIPTION:Speakers: Maxim Gromov (SINP MSU)\nIn the coming years\, the c ompact monoenergetic neutron generators producing up to $10^3$ n/s may bec ome an alternative to the standard neutron sources based on radioactive is otopes for the calibrations of neutrino and dark matter detectors. Such ne utron generators have a typical size of about several centimetres\, they m ay be manufactured using low-background materials and require only low vol tage power supply like a standard CR2032 battery for operation. We discuss the advantages and disadvantages of two types of the compact neutron gene rators\, namely a pyroelectric neutron source and a source based on the ca rbon nanotubes. Also the results of the technical analysis of the possibil ities to apply such sources for the calibration of low-background experime nts are given\, the variants of the internal device design are shown and t he data of the primary tests of a full-size compact neutron generator prot otype are presented.\n\nThe research was supported by the grant from the R ussian Science Foundation (project №16-19-10535).\n\nhttps://indico.part icle.mephi.ru/event/22/contributions/1235/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1235/ END:VEVENT BEGIN:VEVENT SUMMARY:Complex for spectrometry of hard X-ray and gamma radiation of the Sun and study of polarization of solar flares for the perspective space pr oject SOLARIS. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1234@cern.ch DESCRIPTION:Speakers: Alexander Glyanenko (NRNU MEPhI)\nThe perspective sp ace project SOLARIS involves research on board a spacecraft launched at La grange L1 point\, which should provide long-term continuous complex observ ations of the Sun in various ranges of the electromagnetic spectrum. The c omplex of scientific devices developed by NRNU MEPhI is designed to study active nonstationary processes on the Sun in a wide range of X-ray and gam ma radiation (1 keV to 10 MeV)\, physical mechanisms of acceleration and t ransport of electrons\, protons and nuclei at various phases of solar flar e development\, plasma in the region of the flare by the methods of spectr al-temporal and polarimetric measurements (in the range 30-150 keV) of rad iation fluxes. In this paper\, the scientific tasks\, operating principles and basic characteristics of NRNU MEPhI devices for the SOLARIS space pro ject are described.\n\nhttps://indico.particle.mephi.ru/event/22/contribut ions/1234/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1234/ END:VEVENT BEGIN:VEVENT SUMMARY:Recovery Time Measurements of the Hamamatsu Linear Assembly SiPM DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1233@cern.ch DESCRIPTION:Speakers: Fred Kayumov (LPI\, MEPhI)\nAbstract. The pixel reco very time of the Hamamatsu SiPM linear assembly was measured. The assembly contains eight SiPMs of 2.8 mm active area diameter\; pixel size is 15 x 15 mkm2. The assembly is used in calorimeters of the CMS experiment.\nThe measurements were made for two groups of pixels: 49 and 17 pixels. Recover ing time was found as 7 ns and 6 ns respectively.\nThe amplifier of 40 db and digital oscilloscope TDS3052 Tektronix were used when measurements.\n\ nhttps://indico.particle.mephi.ru/event/22/contributions/1233/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1233/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of Transition Radiation Detectors for hadron identific ation at TeV energy scale. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1229@cern.ch DESCRIPTION:Speakers: Vladimir Tikhomirov (P.N.Lebedev Physical Institute RAS)\nPossible study of hadron production at small angles with respect to beam \nat the Large Hadron Collider (LHC) is being actively discussed now. \nApart from a better understanding of the fundamental QCD processes\,\nth e study of high energy particle production in the forward direction\nis an extremely important topic for cosmic ray physics.\nSuch measurements coul d remove uncertainties in physics models explaining\nparticle production w ith energies up to 10^17 eV in the Universe.\nThe energy range of the part icles explored in the proposed\nSmall-Angle-Spectrometer (SAS) experiments at the LHC\nextends from ~1 TeV to ~6 TeV that corresponds for protons\, kaons and pions\nto Lorentz gamma-factor value from ~10^3 to ~4*10^4.\nThe only particle identification technique able to effectively separate hadro ns\nwith these gamma-factors is based on the properties of the X-ray\ntran sition radiation (TR) production.\nIn order to study this possibility\, a dedicated set-ups based on straw\nproportional tube arrays were built and tested at the CERN SPS accelerator.\nDedicated Monte Carlo (MC) simulation s were also performed and compared with\nthe experimental data.\nThen this proved MC was used for simulation of possible construction of\nfull-scale Transition Radiation Detectors (TRD) for SAS experiments at the LHC.\nSom e test beam results\, comparison with MC simulations and abilities of\npro posed full-scale TRD are presented.\n\nhttps://indico.particle.mephi.ru/ev ent/22/contributions/1229/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1229/ END:VEVENT BEGIN:VEVENT SUMMARY:Fast component in the Xe-dopant LAr DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1214@cern.ch DESCRIPTION:Speakers: Dmitry Rudik ()\nWe proposed the first experimental confirmation of the fast component reemitence in the Xe-doped LAr. The eff ect is clearly visible at the concentration of more than 100 ppm Xe (mol b y mol). Previously observed improvement of PSD ability with the increasing of Xe concentration in LAr by different experimental groups is explained by this effect. Advantages of Xe-dopant as a WLS for LAr-detectors are dis cussed.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1214/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1214/ END:VEVENT BEGIN:VEVENT SUMMARY:Fabrication of reactor target from enriched 50Cr for artificial ne utrino source DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1213@cern.ch DESCRIPTION:Speakers: Julia Kozlova (Pavlovna)\nIn the report the current state of fabrication of the enriched 50Cr target for the artificial 51Cr n eutrino source with activity > 3 MCi for the experiment BEST is presented. The processes of obtaining a target in the form of disks with a thickness of 4 mm and a diameter of 84 and 88 mm required to achieve the necessary activity using the reactor SM-3 are considered\, including: enrichment of natural chromium in the form of oxyfluoride by gas centrifugation\, electr olytic reduction and refining of metallic chromium\, as well as the format ion of chromium disks by spark plasma sintering.\n\nhttps://indico.particl e.mephi.ru/event/22/contributions/1213/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1213/ END:VEVENT BEGIN:VEVENT SUMMARY:Digitised response of the highly granular ILD hadron calorimeter t o single hadrons DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1201@cern.ch DESCRIPTION:Speakers: Sergey Korpachev ()\nHighly granular calorimeters ar e proposed for the calorimeter systems of multi-purpose detectors at futur e lepton colliders. In particular\, the ILD hadron calorimeter will be ass embled from scintillator tiles read out directly by silicon photomultiplie rs. We have measured a response of the tile-SiPM system to minimum ionisin g particles emulated by electrons from radioactive source. The contributio n of different effects\, such as light collection efficiency and electroni c noise\, to the response width was estimated from these experimental data . The estimated contribution is implemented in the digitisation of simulat ed signals from single hadrons in the cells of the ILD hadron calorimeter. We show here the impact of the experimentally measured detector effects o n the simulated ILD hadron calorimeter resolution for single hadrons in th e energy range from 5 to 50 GeV.\n\nhttps://indico.particle.mephi.ru/event /22/contributions/1201/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1201/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of a large liquid Argon detector for study of CEvNS DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1196@cern.ch DESCRIPTION:Speakers: Alexander Kumpan ()\nAfter Coherent elastic neutrino -nucleus scattering (CEvNS) was discovered with CsI detector the main task of the COHERENT Collaboration is the detailed study of this process chara cteristics using different target nuclei. A prototype liquid Argon detecto r is working at the SNS now. In this talk development of a large liquid Ar gon detector will be described. Another important task of a large detector is detection of a charged current neutrino interaction.\n\nhttps://indico .particle.mephi.ru/event/22/contributions/1196/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1196/ END:VEVENT BEGIN:VEVENT SUMMARY:THE POSSIBLE EXPERIMENT FOR SEARCH OF STERILE NEUTRINOS ON THE BAS E OF INTENSIVE ANTINEUTRINO SOURCE WITH REGULATED HARD SPECTRUM DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1195@cern.ch DESCRIPTION:Speakers: Vladimir Lyashuk ()\nThe work devoted to development of the novel type of antineutrino source and propose of the oscillation experiment to ensure: a) hard and well defined antineutrino flux that lar ger compare to reactor flux\; b) drop of neutrino flux errors in several times at energy > 3 MeV\; c) high rate of antineutrino events in the detec tor (about - ~ 1E+3 per day)\; d) possibility to diminish significantly t he dimensions of the detector\; e) search of electron antineutrino disa ppearance (short base line experiment).\n\nThe most intensive artificial neutrino sources are the nuclear reactors. But antineutrino reactor spectr a (formed by main fuel isotopes) are characterized by large uncertainties in the total -spectrum that lead to very serious problem in understanding of neutrino oscillation results. The reactor spectrum is known with ~ (4- 5)% -precision and this errors dramatically rise up to tens persents at mo re higher energies. [1-4].\n\nThe proposed scheme is based on activation o f 7Li in the reactor neutron flux and transport of the fast beta-decaying 8Li isotope toward a remote neutrino detector and back in the closed loop to the reactor for the next activation in the continuous cycle. Well inves tigated neutrino spectrum of 8Li is hard: with maximal energy up to 13 Me V. For increasing of a hard lithium antineutrinos part in the total spectr um we propose to construct a being pumped reservoir near the neutrino det ector. This novel type of the source will ensure not only harder neutrino spectrum in the detector volume but also an opportunity to register neut rino interaction at different summary spectrum hardness varying smoothly ( without stop of the experiment) a rate of 8Li (or it's chemical compound) pumping in the closed loop [5\, 6].\n\nThe strong advantage is that lithiu m component of the spectrum is well known and this fact allows to decrease significantly the count errors [7\, 8]. The rate of neutrino detector cou nts in such hard flux will rise strongly compare to rate from reactor comp onent. One more advantage is to use compact detector (with volume about ~ cubic meter ) that is exclusively important for realization of the experim ent. \n\nThe simulation of the possible experiment for search of sterile n eutrinos (the reaction of inverse beta decay) with ∆m2 ~1 eV2 reveals t he promise to detect reliable the disappearance of electron antineutrinos. The detailed results for (3+1) and (3+2)-model are presented and discusse d. It is proposed the variant of short base line oscillation experiment ba sing on the considered antineutrino source.\n\n 1. Kopeikin V. I. // Phys . At. Nucl. 2012. V. 75. No. 2. P. 143.\n 2. Lyashuk V. I. // Particles an d Nuclei\, Letters. 2017. V.14.No.3. p. 465.\n 3. Lyashuk V. I. and Lutost ansky Yu S.\n arXiv:1503.01280v2 [physics.ins-det]. 2015. \n 4. Lyashuk V. I. and Lutostansky Yu. S. // JETP Letters. 2016. Vol. 103. P. 293.\n 5 . Lutostansky Yu.S.\, Lyashuk V.I. // Bull. Russ. Acad. Sci. Phys.\n 20 11. Vol. 75. P. 468.\n 6. Lyashuk V. I. arXiv:1609.02934 [physics.ins-det] . 2016.\n 7. Lyashuk V. I. Results in Physics. 2017.\n V.7. p.1212. \n 8. Lyashuk V. I. arXiv:1612.08096 [physics.ins-det] 2016.\n\nhttps://indi co.particle.mephi.ru/event/22/contributions/1195/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1195/ END:VEVENT BEGIN:VEVENT SUMMARY:Studying the possibility of FSR suppression in DM decay in depende nce of the mass of intermediate particle DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1194@cern.ch DESCRIPTION:Speakers: Maxim Soloviev ()\nThe main difficulty of descriptio n of particle excess in cosmic rays [1] with\nunstable dark matter is the restriction given by isotropic gamma-ray background\n(IGRB) [2-4]. The fin al-state radiation (FSR) from the DM decay or annihilation\nprocess makes major contribution to the gamma-ray flux in these models. There are models where decay goes through cascades with some intermediate particles. In th is work we study the FSR output from such cascade in dependence of the mas s of intermediate particle in the search for its possible suppression.\n\n https://indico.particle.mephi.ru/event/22/contributions/1194/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1194/ END:VEVENT BEGIN:VEVENT SUMMARY:Studying effects of microlensing for cluster of primordial black h oles DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1193@cern.ch DESCRIPTION:Speakers: Konstantin Toshchenko (NRNU MEPhI)\nPrimordial black holes (PBH) attracted particular attention last time. They are possible c andidates not only to dark matter\, but to supermassive black holes\, grav itational waves events from black hole merger and others. However\, recent ly there appeared constraints on PBH abundance from different observations (including those from gravitational microlensing). The present work is de voted to the model of a PBH cluster in which these constraints (part of th em) can be avoided. In this work we investigate effect of gravitational m icrolensing for PBH\, strongly constraining single PBH abundance. Analyses of data on respective observation for a cluster can remove not only const raints on them\, but it makes possible to test this model distinguishing i t from the model of single PBHs.\n\nhttps://indico.particle.mephi.ru/event /22/contributions/1193/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1193/ END:VEVENT BEGIN:VEVENT SUMMARY:Superheavy objects composed of nuclear and dark matter DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1192@cern.ch DESCRIPTION:Speakers: Vakhid Gani (National Research Nuclear University ME PhI (Moscow Engineering Physics Institute)\, 115409 Moscow\, Russia)\nWe c onsider a model of $OHe$ atomic dark matter formed by Coulomb binding of t he stable double charged massive $O^{--}$ particles with nuclei of primord ial helium. Such dark matter can be captured by ordinary matter forming su perheavy nuclei. We discuss $O$-nuclearites formed by multiple capture of $O^{--}$ particles by heavy nuclei and effect of accumulation of $OHe$ at oms in stellar evolution.\n\nhttps://indico.particle.mephi.ru/event/22/con tributions/1192/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1192/ END:VEVENT BEGIN:VEVENT SUMMARY:The automation of choosing of the optimal kinematic variables for discrimination of the electroweak Zgamma production DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1190@cern.ch DESCRIPTION:Speakers: Evgeny Soldatov ()\nIn this talk the automation of t he search for the variable of interest is discussed. Few different automat ion techiques was probed. The output distributions obtained with these tec hniques can be used as an discriminants or the part of the discriminants o f the rare high energy physics process. An overview of performance and eff iciency for each technique is preseted.\n\nhttps://indico.particle.mephi.r u/event/22/contributions/1190/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1190/ END:VEVENT BEGIN:VEVENT SUMMARY:SEARCH FOR STATES WITH ENHANCED RADII IN TRIPLET 12B-12C-12N DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1128@cern.ch DESCRIPTION:Speakers: Andrey Danilov ()\nTwo independent methods: ANC (Asy mptotic normalization coefficients) [1\,2] and MDM (Modified diffraction m odel) [3\,4] were applied to new and existing experimental data. The purpo se of this analysis is search for states with enhanced radii in isobar-ana log excited states of triplet A=12: $^{12}$B – $^{12}$C – $^{12}$N.\n\ nThere is experimental work [1] where halo was observed for 2 states of $^ {12}$B: 2¯\, 1.67 MeV and 1¯\, 2.62 MeV. To check this result new experi mental data $^{11}$B(d\,p)$^{12}$B was obtained at E$_{d}$ = 21.5 MeV [5\, 6]. On base of ANC analysis of this new data [5\,6]\, neutron halo existen ce was confirmed for the 2¯\, 1.67 MeV and 1¯\, 2.62 MeV states in $^{12 }$B. An unexpected result was obtained for the unbound 3¯\, 3.39 MeV stat e\, which is 19 keV above the neutron emission threshold. Its halo radius was also found to be increased and equal to ~ 6.5 fm [5\,6]. This result c an be considered as an evidence of the halo-like structure in this $^{12}$ B state.\n\nWhat can we expect in isobar-analog states in $^{12}$C and $^{ 12}$N? Are these states also characterized by enhanced radii? To check thi s prediction\, preliminary analysis of existing $^{12}$C($^{3}$He\,t)$^{12 }$N and $^{12}$C($^{3}$He\,$^{3}$He’)$^{12}$C experimental data using Mo dified diffraction model (MDM\, [3\,4]) was done. \n\n1. Z. H. Liu\, Phys. Rev. C 64\, 034312 (2001).\n2. T. L. Belyaeva et al.\, Phys. Rev. C 90\, 064610 (2014).\n3. A.N. Danilov et al.\, Phys. Rev. C 80\, 054603 (2009)\n 4. A.S. Demyanova et al.\, Phys. Atom. Nucl.\, 80\, 831 (2017)\n5. T.L. Be lyaeva et al.\, EPJ Web Conf.\, 165\, 01004 (2017)\n6. T.L. Belyaeva et al .\, Phys. Rev. C 98\, 034602 (2018)\n\nhttps://indico.particle.mephi.ru/ev ent/22/contributions/1128/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1128/ END:VEVENT BEGIN:VEVENT SUMMARY:Invariant Cross-Section of secondary particles in forward directio n in 20 A GeV carbon beam interactions with nuclear targets DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1126@cern.ch DESCRIPTION:Speakers: Dmitry Elumakhov (IHEP)\nM.Yu. Bogolyubsky\, A.Yu. B ordanovky \, A.A. Volkov\, D.K. Elumahov\, V.P. Efremov\,\nA.A. Ivanilov\, A.Yu. Kalinin\, A.N. Krinitsyn\, V.I. Kryshkin\, N.V. Kulagin\, D.I. Pa talakha\,\nK.A. Romanishin\, V.V. Skvortsov\, V.V. Talov\, L.K. Turchanov ich\n\nNational Research Center «Kurchatov Institute » Institute for H igh Energy Physics\, Protvino\, Moscow reg.\, Nauka square 1\, 142281\, Russia\ne-mail: Dmitriy.Elumahov@ihep.ru\n\nInvariant Cross-Sections of $\ \pi^{-}$\,$k^{-}$\, protons and antiprotons were measured in 20.5 A GeV/c\ ncarbon beam interactions with carbon and lead targets at the IHEP acceler ator U-70.\nMeasurements were made at production angles of secondaries fro m 0 to 6 milliradians and momentum from 10 to 60 GeV/c in lab. system. Als o we present comparison with Monte Carlo simulation provided with URQMD an d FTFP generators.\n\nThis work was supported by grant № 16-02-0021 from the Russian Foundation for Basic Research.\n\nhttps://indico.particle.mep hi.ru/event/22/contributions/1126/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1126/ END:VEVENT BEGIN:VEVENT SUMMARY:Reissner-Nordstr\\"om solution in tetrad representation as model for classical electron DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1101@cern.ch DESCRIPTION:Speakers: Serguei Manaenkov (NRC "Kurchatov Institute")\nThe e xact Reissner-Nordstr\\"om solution of the Maxwell and Einstein equations corresponding the electromagnetic field configuration \nlocalized in the region with the range of about $10^{-34}$ cm is considered as a model for the classical electron. It is shown that in\nthe tetrad representation\, i n spite of singularities of the electromagnetic and gravitational fields\, there are solutions with the finite\ntotal Lagrangian and total electron mass. It is argued that the gravitational force can play a crucial role i n the structure of \nelementary particles.\n\nhttps://indico.particle.meph i.ru/event/22/contributions/1101/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1101/ END:VEVENT BEGIN:VEVENT SUMMARY:The baryon asymmetry in the framework of the Kaluza-Klein theory DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1100@cern.ch DESCRIPTION:Speakers: Valeriy Nikulin ()\nThe possibility of describing th e origin of the baryon asymmetry is discussed within the framework of the Kaluza-Klein approach. The approach allows to obtain a mechanism similar t o the Affleck–Dine mechanism from the dynamics of extra-space metric. Th e baryon number arises as a result of U(1)-symmetrization of extra dimenti ons at low energies. Baryon asymmetry is generated due to perturbations in the extra-space occurring in the early Universe.\n\nhttps://indico.partic le.mephi.ru/event/22/contributions/1100/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1100/ END:VEVENT BEGIN:VEVENT SUMMARY:On Kasner solution in Bianchi I $f(T)$ cosmology DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1098@cern.ch DESCRIPTION:Speakers: Maria Skugoreva ()\nRecently cosmological dynamics o f anisotropic Universe in $f(T)$ gravity became an area of intense investi gations. Some earlier papers devoted to this issue contain contradictory c laims about the nature and propertied of vacuum solutions in this theory. The goal of the present paper is to clarify this situation. We compare pro perties of $f(T)$ and $f(R)$ vacuum solutions and outline differences betw een them. The Kasner solution appears to be an exact solution for the $T=0 $ branch\, and an asymptotic solution for $T \\ne 0$ branch. It is shown t hat Kasner solution is the past attractor if $T0$ branch.\n\nhttps://indic o.particle.mephi.ru/event/22/contributions/1098/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1098/ END:VEVENT BEGIN:VEVENT SUMMARY:Indirect Dark Matter searches with the HAWC Observatory. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1097@cern.ch DESCRIPTION:Speakers: Ruben Alfaro (Universidad Nacional Autonoma de Mexic o)\nThe High Altitude Water Cherenkov (HAWC) observatory is a wide-field-o f-view (2sr) and high duty cycle (>95%) gamma-ray detector array\, which i s sensitive to gamma rays from 500 GeV - 100 TeV. HAWC operates at an alti tude of 4100 meters in the state of Puebla\, Mexico\, since HAWC observes 2/3 of the sky 24 hours a day\, it is a well-suited instrument to perform indirect dark matter searches by detecting high energy photons resulting f rom annihilation or decay of dark matter particles. For such searches\, we have considered dwarf spheroidal galaxies\, the Milky Way halo\, and the M31 galaxy. Besides the traditional regions\, we have also searched in som e other regions as dwarf irregulars galaxies. Since HAWC has not seen stat istically significant excess from these sources\, we present annihilation and decay limits for dark matter masses above 1 TeV.\n\nhttps://indico.par ticle.mephi.ru/event/22/contributions/1097/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1097/ END:VEVENT BEGIN:VEVENT SUMMARY:Observable relics of the simple harmonic universe DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1096@cern.ch DESCRIPTION:Speakers: Bart Horn (Manhattan.College)\nWe analyze observatio nal signatures that may arise from a cosmological epoch corresponding to t he simple harmonic universe\, which consists of positive curvature\, a neg ative cosmological constant\, and one or more matter sources with an inter mediate equation of state\, which then tunnels and/or evolves into inflati on and radiation-dominated eras. We find that the effects on the cosmic m icrowave background and matter power spectrum from additional matter sourc es are subdominant to the effects arising due to curvature alone. Moreove r\, even if the curvature is too small to detect at late times\, it can mo dify the primordial power spectrum\, and may help explain the observed sup pression of the CMB TT quadrupole in the Planck satellite data\n\nhttps:// indico.particle.mephi.ru/event/22/contributions/1096/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1096/ END:VEVENT BEGIN:VEVENT SUMMARY:Examples of stable exponential cosmological solutions with three factor spaces in EGB model with a $\\Lambda$-term DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1095@cern.ch DESCRIPTION:Speakers: Kubantai Ernazarov ()\nWe consider a $D$-dimensional gravitational model with a Gauss-Bonnet term and the cosmological term $ \\Lambda$. We restrict the metrics to diagonal cosmological ones and find for certain $\\Lambda$ a certain examples of solutions with exponential t ime dependence of three scale factors\, governed by three non-coinciding H ubble-like parameters. \nWe prove the stability of these solutions in a class of cosmological solutions with diagonal metrics.\n A solution des cribing an exponential expansion of $3d$ subspace with Hubble parameter $ H$ and small enough variation of the effective gravitational constant $G$ is singled out.\n\nhttps://indico.particle.mephi.ru/event/22/contributions /1095/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1095/ END:VEVENT BEGIN:VEVENT SUMMARY:Поиск событий в детекторе LVD коррели рующих с гравитационным коллапсом тесны х двойных систем DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1094@cern.ch DESCRIPTION:Speakers: Vsevolod Ashikhmin (INR RAS)\nПриводятся результаты поиска событий\, регистрируе мых детектором LVD\, совпадающих с гравита ционными сигналами от источников GW150914\, G W151226\, GW170104\, GW170608\, GW170814 и GW170817.\n\nhttps://indico.pa rticle.mephi.ru/event/22/contributions/1094/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1094/ END:VEVENT BEGIN:VEVENT SUMMARY:(2+1) dimensional cosmological models in f(R\, T) gravity with Λ( R\, T) DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1093@cern.ch DESCRIPTION:Speakers: Praveen Kumar (Department of Mathematics\, R.T.M.Na gpur University Nagpur)\nWe intend to study a new class of cosmological mo dels in f(R\, T) modified theories of gravity\, hence\ndefine the cosmolog ical constant Λ as a function of the trace of the stress energy-momentum- tensor T and\nthe Ricci scalar R\, and name such a model Λ(R\, T) gravity where we have specified a certain form of\nΛ(R\, T). Λ(R\, T) is also d efined in the perfect fluid and dust case. Some physical and geometric pro perties\nof the model are also discussed. We study the behavior of some co smological quantities such as Hubble and\ndeceleration parameters and also the redshift function. The model is innovative in the sense that it has\n been described in terms of both R and T and display a better understanding of the cosmological observations.\n\nhttps://indico.particle.mephi.ru/eve nt/22/contributions/1093/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1093/ END:VEVENT BEGIN:VEVENT SUMMARY:Wormholes with quardratic equation of state DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1092@cern.ch DESCRIPTION:Speakers: Safiqul Islam (Harish-Chandra Research Institute)\nI n last few years\, several cosmologists have been used different equation of states (EOS) (namely\, Phantom energy\, generalized Chaplygin gas\, Van der Walls quintessence EOS etc ) to explain the present accelerated expans ion of the Universe. By using the same EOS\, some theoretical physicists h ave been trying to construct traversable wormholes. Recently\, Ananda and Bruni [Phys.Rev.D74:023523\,2006] have proposed quardratic EOS to describe homogeneous and inhomogeneous cosmological models. In this\, article we e xplore the possibility that the wormholes be supported by quardratic EOS. We have found a series solution of Einstein equations describing\nwormhole for a matter source that is characterized by quardratic EOS.\n\nhttps://i ndico.particle.mephi.ru/event/22/contributions/1092/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1092/ END:VEVENT BEGIN:VEVENT SUMMARY:Self-organization of nonlocal energy fluxes instead of Newton’s reductionism DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1091@cern.ch DESCRIPTION:Speakers: Igor Bulyzhenkov (lebedev Physics Institutes RAS)\nT he inside energy content of the extended particle obeys Umov’s estimate of 1873 mc^2/γ ≈ mc^2 (1-0.5β^2) ≤ mc^2 under low velocities d espite γmc^2 ≈ mc^2 (1+0.5β^2) ≥ mc^2 for the total kinetic energy . Geodesic auto-accelerations in mechanics / gravitation of nonlocal energ y fluxes drive the probe body toward equipartition of kinetic energies of inside chaos\, mc^2/γ\, and its ordered translation\,mc^2[γ-γ^(-1)]. Ad aptive thermo-mechanics of delocalized elementary energies due to competin g degrees of freedom for inside chaos and translational order should repla ce Newton’s reductionism of point mass without inside energy variables. \n\nBased on “Gravitational attraction until relativistic equipartition of internal and translational kinetic energies”\, Astrophys. Space Sci. 363:39 (2018).\n\nhttps://indico.particle.mephi.ru/event/22/contributions/ 1091/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1091/ END:VEVENT BEGIN:VEVENT SUMMARY:Gravitational Hertz experiment in dielectrics\, excited by intense laser pulses. DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1089@cern.ch DESCRIPTION:Speakers: Vladimir Gorelik (P.N. Lebedev Physical Institute of the Russian Academy of Sciences)\nThe possibility of generating and detec ting high-frequency gravitational waves based on parametric optical proces ses in dielectric media at their excitation by intense laser radiation of visible or ultraviolet ranges is analyzed. The theory predicts the feasibi lity of the Hertz gravitational laboratory experiment in which the paramet ric conversion of intense laser pulses with frequency ω0 to a gravitation al wave with frequency ωg=2ω0 and the reverse process of gravitational radiation reconversion to optical radiation. Experiments have been fulfill ed for observation of multifrequency Stimulated Raman Scattering and photo n-biphoton conversion in dielectrics\n\nhttps://indico.particle.mephi.ru/e vent/22/contributions/1089/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1089/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of CP violation in the process of associated Higgs boson pro duction with a decay into muon pair DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1327@cern.ch DESCRIPTION:Speakers: Nikita Belyaev ()\, Tyler Reese (Manhattan College)\ nAssociated Higgs boson production in pp collisions can be a powerful tool for searches for CP violation in the Higgs sector. In this study we analy ze CP sensitive observables constructed for a four lepton final state. It is shown that azimuthal angle distributions of leptons in this process dem onstrate a strong sensitivity to CP violation at the current limits on Hig gs boson coupling parameters and can reveal a genuine mechanism of CP viol ation.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/1327/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1327/ END:VEVENT BEGIN:VEVENT SUMMARY:THE FOUR-DIMENSIONAL SELF-CONSISTENT MODEL OF THE BUNCH OF CHARGE D PARTICLES DTSTART;VALUE=DATE-TIME:20181022T124000Z DTEND;VALUE=DATE-TIME:20181022T151000Z DTSTAMP;VALUE=DATE-TIME:20260422T090306Z UID:indico-contribution-137-1263@cern.ch DESCRIPTION:Speakers: Alexander Chikhachev ( Federal State Unitary Enterpr ise VNIITF im. akad. E. I. Zababakhina VEI-branch)\n**strong text** The fo ur-dimensional non-stationary model of a bunch of the particles interactin g with own field is studied. For the description of behavior of a bunch th e "Meshchersky's integral" allowing to give completely self-consistent kin etic description in 8-dimensional phase space is used. In the considered t ask the self-coordinated potential determines interaction forces in 3-dime nsional space.\n\nhttps://indico.particle.mephi.ru/event/22/contributions/ 1263/ LOCATION:Hotel Intourist Kolomenskoye 4* Petrovskiy hall URL:https://indico.particle.mephi.ru/event/22/contributions/1263/ END:VEVENT END:VCALENDAR