BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:NEW METHOD OF ELECTRONS AND PROTONS SEPARATION IN THE CALORIMETER OF THE PAMELA INSTRUMENT DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-792@cern.ch DESCRIPTION:Speakers: Svetlana Kleymenova (National Research Nuclear Unive rsity MEPhI (Moscow Engineering Physics Institute))\nPAMELA experiment on board Resurs DK satellite was equipped with electromagnetic imaging calo rimeter\, which comprises 44 silicon planes interleaved with 22 plates of tungsten absorber (total debth 16\,3X0).\n\nHigh granularity of calorimete r allows an accurate spatial reconstruction of the shower development.\n\n New method of separation of electrons and protons based on single strip di stribution ouside of main particle track is discussed.\n\nMonte-Carlo simu lation hows that adding this method proton rejection power of the instrume nt can be increased several times in energy range from ~10 to ~100 Gev.\n\ nhttps://indico.particle.mephi.ru/event/4/contributions/792/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/792/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of anticoincidence system for “Signal” experiment DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-782@cern.ch DESCRIPTION:Speakers: Alexander Shustov (NRNU MEPhI)\nAn information about development of an anticoincidence system for charge particle rejection in “Signal” experiment on a board of “Interhelioprobe” spacecraft ar e presented. A construction of a detector and components of scientific equ ipment are described. Initial tests of the scintillation detector\, silico n photomultipliers and future plans of developing are discussed.\n\nhttps: //indico.particle.mephi.ru/event/4/contributions/782/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/782/ END:VEVENT BEGIN:VEVENT SUMMARY:LED calibration system for a high energy scintillation spectromete r DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-771@cern.ch DESCRIPTION:Speakers: Rodion Faradzhaev (National Research Nuclear Univers ity MEPhI)\nA calibration system based on two light-emitting diodes (LEDs) and finite difference technique is described. Pulses of the both LEDs hav e a complex shape like CsI(Tl) signals. The first LED has constant amplitu de\, while the amplitude of the second one varies all over the detector en ergy range. The differences between detector responses to summarized pulse s of the both LEDs and pulses of the variable LED are measured. Then itera tive fitting of the measured data is used for calculation of a detector re sponse curve. This approach allowed us to design a calibration system for a scintillation detector with the energy range of 1-200 MeV\, which is goi ng to be part of the GRIS solar gamma ray spectrometer. The results of cal ibration and verification measurements are represented\; the precision of the proposed method is discussed.\n\nhttps://indico.particle.mephi.ru/even t/4/contributions/771/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/771/ END:VEVENT BEGIN:VEVENT SUMMARY:Performance study of the fast timing Cherenkov detector based on a microchannel plate PMT DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-769@cern.ch DESCRIPTION:Speakers: Yury Melikyan (NRNU MEPhI)\nPrototype of the fast ti ming Cherenkov detector has been developed utilizing a modified Planacon X P85012 MCP-PMT for its use in collider experiments. We present the timing and amplitude characteristics of the prototype obtained with relativistic particles and with fast lasers. Also presented will be the reasons and des cription of the PMT modification\, summary of the detector's response on p article hits at oblique angles\, light yield of the MCP window\, and ampli tude homogeneity across the MCP area.\n\nhttps://indico.particle.mephi.ru/ event/4/contributions/769/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/769/ END:VEVENT BEGIN:VEVENT SUMMARY:The correlation between the gamma-ray flashes and electron bursts associated with thunderstorm activity in the near-Earth space DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-768@cern.ch DESCRIPTION:Speakers: Liliya Savushkina (National Research Nuclear Univers ity MEPhI)\nAssociated with thunderstorm activity gamma-ray bursts (TGF - Terrestrial Gamma-Flash) were discovered in 1994\, by the BATSE instrument on board the satellite (cosmic gamma-ray observatory Compton\, NASA). As expected one of the main mechanisms of their generation is bremsstrahlung emission of relativistic electrons\, accelerated by atmospheric electric f ield above thunderclouds. This work is devoted to investigation of the in terrelation between TGFs and of high-energy electron bursts\, which have b een registered into near-Earth space below the radiation belt. The databas e of high-energy electron bursts with energies from 3 to 30 MeV obtained i n ARINA and VSPLESK satellite experiments and the database of TGFs registe red by RHESSI satellite (with energies up to 17 MeV) were used in this wor k. As it was shown earlier the most of electron bursts (70-80%) have the t hunderstorm origin. Most of these bursts are associated with precipitation s of the electrons from the radiation belts caused by electromagnetic dist urbance generated by the lightning discharges. But some bursts could have another origin\, for example\, associated with acceleration-runaway mechan ism (Gurevich’s mechanism). In this case\, the electron bursts must be a ccompanied with flashes of bremsstrahlung. The database of TGFs and the da ta of the high-energy electron bursts were analyzed. The results of the an alysis are presented at this work.\n\nhttps://indico.particle.mephi.ru/eve nt/4/contributions/768/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/768/ END:VEVENT BEGIN:VEVENT SUMMARY:Calculation of the electronic structure in the field of a homogene ously charged core of a large radius. DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-764@cern.ch DESCRIPTION:Speakers: Dmitry Shidlovskiy (ITEP)\nCalculation of the electr onic wavefunctions and energies in the field of a homogeneously charged co re of a large radius are reviewed. The Hartree-Fock self-consistent field method is applied for the problem. The model of large core is used for mo deling small metal particles. Also the density-functional method is used i n conjunction with the Hartree-Fock method. Results are compared with othe r authors.\n\nhttps://indico.particle.mephi.ru/event/4/contributions/764/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/764/ END:VEVENT BEGIN:VEVENT SUMMARY:Timing analysis of AE Aquarii X-ray observations DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-754@cern.ch DESCRIPTION:Speakers: Elizaveta Ryspaeva (Saint Petersburg State Universit y)\nAE Aquarii has been known as one of the most enigmatic magnetic Catacl ysmic Variables on various aspects\, including large optical flares and fl ickering large radio flares\, TeV gamma-ray emissions and X-ray emission. AE Aquarii is a close binary system composed of a magnetized white dwarf a nd a Roche-lobe filling K3IV red dwarf. A white dwarf has a very short rot ational period about 33.08 s. We have made independence timing analisys o f archival AE Aquarii X-ray observation\, obtained using orbital observato ries «XMM-Newton» and «Chandra» in 2001 and 2005 respectively. We comp ared our results with published data. Period searching with different nume rical methods confirmed the presence of 33-s regular X-ray pulsations. Als o we confirmed that pulsations with a period of 16.5 s\, visible in optica l and UV ranges\, absents in the X-ray part of AE Aquarii spectrum. It can means that an X-ray emission comes from the one pole of white dwarf surfa ce.\n\nhttps://indico.particle.mephi.ru/event/4/contributions/754/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/754/ END:VEVENT BEGIN:VEVENT SUMMARY:About possible amendments to the first postulate of the special t heory of relativity DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-720@cern.ch DESCRIPTION:Speakers: Victor Vorontsov (National Research Nuclear Universi ty MEPhI (Moscow Engineering Physics Institute))\nThis work is devoted to the fundamental problems of physics\, namely the check of the first postul ate of the special theory of relativity about inertial frames of reference . The question of transition between inertial systems\, which is bound to the need of their acceleration is considered in it. If an inertial fram e of reference is bound to a physical body\, then its property can be cha nged under an acceleration and this can influence further on its interacti on with other bodies. From the point of view of STR a transition from one inertial system to another is defined by Lorentz transformation laws and the question of how this transition was carried out\, is not considered. T here is a certain contradiction between actual and ideal inertial frames o f reference. The experiment on particle accelerators is offered for the ch eck of the principle of an independence of a transition from one system to another from a way of this transition In this work a possibilities o f carrying out the experiment on check of the first postulate of the spec ial theory of relativity about inertial frames of reference are discussed . The factors capable to influence emergence of the possible deviations fr om the special theory of relativity expanding the idea of it are conside red. These factors are the choice of power range of the particles particip ating in the offered reversible experiment which is reduced to mutual subs titution of a shell and a target and also the choice of suitable elements for its carrying out. The nature of acceleration of the studied particles belongs to the factors capable to influence on emergence of deviations too .\n\nhttps://indico.particle.mephi.ru/event/4/contributions/720/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/720/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigation of PAMELA detectors parameters for search of albedo tritons DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-717@cern.ch DESCRIPTION:Speakers: Sergey Koldobskiy (NRNU MEPhI)\nFirst results of inv estigation of PAMELA detectors parameters for search of albedo tritons. PA MELA is an space-born international experiment is housed on board of Resur s DK-1 satellite which was launched on 16 June 2006. PAMELA experimental f ramework consists from several independent detectors including time-of-fli ght detector\, tracking detector and calorimeter. These detectors allows t o search and identify tritons in albedo radiation\, but fluxes of tritons are small enough\, so big data samples are required for clean identificati on. Therefore\, it is mandatory to check stability of detector parameters during a long period of time. So in this work this analysis was done and i t was used for search of deuterons.\n\nhttps://indico.particle.mephi.ru/ev ent/4/contributions/717/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/717/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigations of Forbush decreases in the PAMELA experiment DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-714@cern.ch DESCRIPTION:Speakers: Iliya Lagoida (NRNU MEPHI)\nA special phenomenon in the physics of cosmic rays\, called Forbush decrease (FD)\, or Forbush eff ect was discovered in 1937 by S. Forbush. FD is a sudden supression of gal actic cosmic rays (GCRs) intensity near the Earth. However\, despite long term of investigations the nature of this phenomenon is still not comple tely understood. Today\, this effect is investigated mostly by the neutron monitors and muon hodoscopes\, which are located on the surface of the Earth. But these monitors can detect only interaction products of GCRs wi th the Earth atmosphere. Therefore\, investigations of this effect using t he detectors which are installed on the sattelites\, allow to obtain more accurate information about the characteristics of FD. PAMELA experiment co nducted research on board of the satellite for 10 years allowed to investi gate the characteristics of the GCRs during FDs which occurred during the experiment. The possibility of investigation of this effect is shown on FD s which were registered in december 2006 and march 2012.\n\nhttps://indico .particle.mephi.ru/event/4/contributions/714/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/714/ END:VEVENT BEGIN:VEVENT SUMMARY:On 3D self-consistent model for quasi-stable stellar system DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-667@cern.ch DESCRIPTION:Speakers: Helen Barminova (NRNU MEPhI)\n3D self-consistent mod el is discussed which may describe the quasi-stable stellar system. Such m odel describes the system having the shape of oblate rotational ellipsoid. The common case of anisotropic "pressure" in the plane of symmetry is con sidered. Some aspects of quasi-relaxed states of such systems and possible system evolution are discussed shortly.\n\nhttps://indico.particle.mephi. ru/event/4/contributions/667/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/667/ END:VEVENT BEGIN:VEVENT SUMMARY:How dark disk\, explaining positron anomaly\, may evade gamma-ray and CMB constraints DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-655@cern.ch DESCRIPTION:Speakers: Ruslan Budaev (NRNU MEPhI)\nDecaying or annihilating dark matter model is a common way to explain positron anomaly\, although it inevitably contradicts data on cosmic gamma-rays. We are going to show that introducing dark disk may evade this problem.\n\nhttps://indico.parti cle.mephi.ru/event/4/contributions/655/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/655/ END:VEVENT BEGIN:VEVENT SUMMARY:CESIUM CALIBRATION OF THE LHCb HADRON CALORIMETER DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-612@cern.ch DESCRIPTION:Speakers: Dmitrii Pereima (ITEP\, MEPhI)\nThe LHCb Hadron Calo rimeter (HCAL) is a sampling iron-scintillator calorimeter of ${5.6λ_{I}} $ thickness. It is equipped with an embedded calibration system based on $ Cs^{137}$ radioactive source\, which is its main calibration tool. \nHCAL information is used in the LHCb L0 trigger for event selection\, therefore it is important to have a precise and reliable calibration system which p roduces result immediately after the calibration run. \nThis report descri bes the layout of the LHCb HCAL and its calibration system and details of the calibration procedure. Special emphasis is put on the data analysis pr ocedure and visualization software. The cesium calibration system is regul arly used for the HCAL calibration starting from the beginning of the LHCb operation in 2008. The results on the HCAL performance and last calibrati on run will be discussed.\n\nhttps://indico.particle.mephi.ru/event/4/cont ributions/612/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/612/ END:VEVENT BEGIN:VEVENT SUMMARY:Multilayer diamond detectors with increased sensitivity to beta-ra diation DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-608@cern.ch DESCRIPTION:Speakers: Renat Ibragimov (National Research Nuclear Universit y MEPhI (Moscow Engineering Physics Institute))\nMultilayer diamond detect ors of ionizing radiation were developed. Mathematical modeling and experi mental research of detector output signal when exposed to beta radiation w as made. Found an increase in the signal/noise ratio in the registration o f beta radiation as compared to single-layer detectors.\n\nhttps://indico. particle.mephi.ru/event/4/contributions/608/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/608/ END:VEVENT BEGIN:VEVENT SUMMARY:Self-consistent description of charged particle beam propagation i n terrestrial magnetic field DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-605@cern.ch DESCRIPTION:Speakers: Helen Barminova (NRNU MEPhI)\nIn the case of charged particle beam propagation in terrestrial magnetic field the beam behavior may be described in the frame of Vlasov theory. The Vlasov theory require ment of the particle collision absence is fulfilled for the cosmic rays du e to the high beam energy and rather low beam intensity. In such approach 2D self-consistent time-dependent model may be applied\, based on the appr oximation that the particle ensemble is described by the distribution func tion dependent on the motion equation invariants. Analytical and numerical solutions of the model equations allow to predict the beam characteristic s transformation during the beam propagation in terrestrial magnetic field \, in particularly\, the beam energy spread transfer into the particle tra nsverse angles (velocities) and vice versa\, which may be important for th e estimate and the interpretation of the measurement results.\n\nhttps://i ndico.particle.mephi.ru/event/4/contributions/605/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/605/ END:VEVENT BEGIN:VEVENT SUMMARY:Unidentified EGRET sources and their possible Fermi counterparts DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-603@cern.ch DESCRIPTION:Speakers: Alexander Lyapin (National Research Nuclear Universi ty "MEPhI")\nUnidentified EGRET sources from 3EG catalog have been analyze d. Preliminary data analysis has shown at least 31 of these sources coinci de with those in 3FGL Fermi catalogue within 1\,2 and 3 sigma error interv als of the coordinates and fluxes. Their properties are discussed in the p resented work.\nEven 3-sigma difference allows supposing sources similarit y because of more than 3-sigma distinctions in values of fluxes between id entified EGRET sources and their Fermi counterparts. For instance\, the co incidence between 3EG J1255-0549 and J1256.1-0547 was reported in Fermi ca talogues 1FGL\, 2FGL\, 3FGL. However\, these sources fluxes (in units of 1 0^-8 photons × cm^-2 × s^-1) in the energy band E > 100 MeV are 179.7±6 .7 (3EG)\, 44.711±0.724 (3FGL)\, 53.611±0.997 (2FGL) and 67.939±1.861 ( 1FGL). Such effect observed for sufficient portion of identified EGRET sou rces. It could cause by troubles of particles identification by Fermi/LAT trigger system. Very often charged particles recognized as gamma-quanta be cause of wrong backsplash analysis. Nevertheless\, gammas counts as charge d particles due analogous reason and rejected during ground data processin g. For example\, it appears as geomagnetic modulation presence on gamma-qu anta count rate latitudinal profiles in energy band E>20 MeV.\n\nhttps:// indico.particle.mephi.ru/event/4/contributions/603/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/603/ END:VEVENT BEGIN:VEVENT SUMMARY:Distorted extra space contribution into dark matter density DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-602@cern.ch DESCRIPTION:Speakers: Alexey Grobov (NRNU MEPhI)\nIt is known that distort ed extra space with point-like defect can take place in our Universe. In t he space of 4-dimensions this defect will appear as a non-zero energy dens ity\, which can interact as classical field with fermions of Standard Mode l. Because of the mass and the size we will refer to these kind of extra-s pace defect as the dark matter "particle"\, though it is not a particle in common sense. But if distributed across the Universe these objects obviou sly will contribute to the dark matter density.\n\nhttps://indico.particle .mephi.ru/event/4/contributions/602/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/602/ END:VEVENT BEGIN:VEVENT SUMMARY:Formation of small self-interacting dark matter component DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-593@cern.ch DESCRIPTION:Speakers: Esipova Ekaterina (NRNU MEPhi)\nIn the report\, self -interacting dark matter is considered. It is supposed that it can form bo und states (with possible successive annihilation) due to long-range dark forces. In the course of cosmological evolution\, such dark matter may for m two components: "passive" one in the form bound-states and "active" (pos sibly small) one in the form of free dark-charged dark matter particles. S uch scenario may have implications for different astrophysical and cosmolo gical issuses.\n\nhttps://indico.particle.mephi.ru/event/4/contributions/5 93/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/593/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of a scintillation detector with a photosensor based o n matrices of silicon photomultipliers DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-588@cern.ch DESCRIPTION:Speakers: Makhti Kochkarov (researcher)\nThe matrices of silic on photomultipliers (SiPM) are promising multi-channel photosensors for sc intillation detectors. A method for their use in this capacity depends on the type of detector and current task. Matrix attached directly to the pla stic scintillator can be used for the selection of events in different par ts of scintillator. We consider also the possibility to use the arrays of SiPM with a corresponding collector optical radiation to obtain a picture of glowing tracks of charged particles\, passing through the scintillator. Such method will allow us to get the image of event within the volume of the scintillator\, the analysis of which gives the possibility\, in princi ple\, to separate different classes of events. The snapshots of the events inside the scintillator were taken for the two SiPM matrices arrangements . In the first variant both matrices are placed on the surface of the plas tic scintillator. In the second variant an optical system with Fresnel len s was used. It is expected that the proposed method of detecting particles may be useful in the creation of new large detectors to neutrino astrophy sics\, and geophysics.\n\nhttps://indico.particle.mephi.ru/event/4/contrib utions/588/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/588/ END:VEVENT BEGIN:VEVENT SUMMARY:High-energy electron bursts in the inner Earth magnetosphere cause d by precipitation from radiation belt DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-578@cern.ch DESCRIPTION:Speakers: Temir Zharaspayev (National Research Nuclear Univers ity MEPhI (Moscow Engineering Physics Institute))\nOrbital experiment ARIN A on the board of Russian satellite Resurs-DK1 launched in 2006 developed to study charged particle flux (electrons $E \\sim 3 - 30 MeV$\, protons $ E \\sim 30 - 100 MeV$) in near-Earth space\, especially high-energy elect ron precipitation from the inner radiation belt caused by various geophysi cal and solar-magnetospheric phenomena. Precipitated electrons under certa in conditions (energy\, LB-coordinate) drifts around the Earth and can be detected as fast increase in count rate of satellite spectrometer (so call ed bursts). High-energy electron bursts can be caused by local geophysica l phenomena (like earthquakes or thunderstorms). Such bursts have distinct features in their measured energy-time distribution. These features conta ins information about initial location of electron precipitation. In previ ous works\, particle precipitation region searching method is described\, the main idea of the method is to use numerical model of electron movement in magnetosphere to find longitudinal distance between region of precipit ation and burst registration location on the board of satellite\, and with knowledge of L-coordinate define precipitation region borders. Major prob lem of this type of analysis is the high number of background electrons (a tmospheric albedo). Several methods (linear\, robust regression) were used previously to minimize number of background particles involved in analysi s. In this report\, the new committee method was developed\, it uses the c ombining results from several methods in dependence of burst registration conditions. Committee method was tested on simulation and experimental dat a. Numerical simulation of local particles precipitations based on well-kn own equations of relativistic particle movement in Earth magnetosphere. In experimental data analysis\, the results from ARINA experiment for $10$ y ears was used. Several results based on burst experimental data are shown. Committee method shows better results than any single method alone.\n\nht tps://indico.particle.mephi.ru/event/4/contributions/578/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/578/ END:VEVENT BEGIN:VEVENT SUMMARY:Non-linear methods for estimation of interrelationship between two scalar fields: multifield gradient measure and Jacobi sets. DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-571@cern.ch DESCRIPTION:Speakers: Vladislav Alekseev (P. G. Demidov Yaroslavl State Un iversity)\nWe consider a problem of estimation of relationship between sca lar fields for a multifield data set. \n\nEvaluation techniques using comp utation of correlation matrix for fields give a global result and therefo re are non-informative. As a satisfactory alternative\, gradient compariso n measure can be used [Nagaraj\, 2011]. \n\nAnother alternative is Jacobi sets\, which are the sets of critical points of the restrictions of one fu nction to the intersection of level sets of the other functions [Huettenbe rger\, 2015]. \n\nWe present the results of a numerical experiment for the case of multifield containing two fields: geopotential height on isobaric level 300 hPa and total ozone column in the Northern hemisphere in Januar y 2005\, when intensive solar proton events were observed. Estimation of r elationship by gradient measure indicates strengthening interaction betwee n fields at $18^{th}$ and $20^{th}$ of January. However\, note that gradie nt measure value depends on gradient vectors length\, so such strengthenin g may be related with magnitude change of gradient fields. Jacobi sets com putation gives more reasonable estimate: relation between fields weakens d uring solar proton events\; paths on Jacobi set between critical points of total ozone field become longer. \n\nIn this work we also give physical e xplanations of obtained results.\n\nhttps://indico.particle.mephi.ru/event /4/contributions/571/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/571/ END:VEVENT BEGIN:VEVENT SUMMARY:Determination characteristics of plastic scintillators using exper imental data by numerical modeling DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-570@cern.ch DESCRIPTION:Speakers: Sergey Aleksandrin (National Research Nuclear Univer sity MEPhI (Moscow Engineering Physics Institute))\nThe possibility of det ermination of plastic scintillator characteristics for detection nuclei wi th high ionizing density by numerical modeling was studied in this report. The scintillator detectors have the following main characteristics: light collection\, transparency and light yield efficiencies. It was carried ou t numerically modeling scintillation photon generation and propagation in detector and evaluated the interrelating between signal amplitude from a p hotomultiplier and energy deposition of particles and nuclei. Using experi mental data for the sample detector and comparing them with numerical mode ling main characteristics of the selected plastic scintillator was obtaine d.\n\nhttps://indico.particle.mephi.ru/event/4/contributions/570/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/570/ END:VEVENT BEGIN:VEVENT SUMMARY:Primordial black holes as solution of the problems of dark matter and reionization of the Universe DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-567@cern.ch DESCRIPTION:Speakers: Natalia Nazarova (NRNU MEPhI)\nWe show possibility o f reionization of the Universe at redshifts z = 5-10 due to radiation of p rimordial black holes. The mass distribution is obtained in the framework of a specific model of their formation as a result of phase transitions in the early Universe. Hawking radiation is assumed to be ionization source. \n\nhttps://indico.particle.mephi.ru/event/4/contributions/567/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/567/ END:VEVENT BEGIN:VEVENT SUMMARY:In-flight second order correction of PAMELA calorimeter characteri stics (for simulation in Geant4) DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-548@cern.ch DESCRIPTION:Speakers: Olga Dunaeva (P. G. Demidov Yaroslavl State Universi ty)\nSimulation of the PAMELA spectrometer characteristics is performed no w by Geant4 software package (in the PAMELA collaboration)\, which needs a detailed information about geometry\, materials etc. of scientific equipm ent. This data is taken from manufactures or obtained from different groun d-based tests including accelerators.\n\nBut the characteristics may chang e a bit during a launch or a long time of operation on the orbit. We propo se a method of in-flight correction of calorimeter characteristics. To cal culate them we select relativistic particles passing through the calorimet er without interactions and low-energy particles stopping inside it (Bragg curves or stopping power). We obtain correction values from a comparison of various measurements between experimental data and simulation in assump tion that electromagnetic processes are performed in Geant4 with high prec ision.\n\nAs a result\, characteristics of silicon sensors and tungsten ab sorber of calorimeter are refined. Correction values are within $\\approx5 \\%$ of the original values.\n\nhttps://indico.particle.mephi.ru/event/4/c ontributions/548/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/548/ END:VEVENT BEGIN:VEVENT SUMMARY:Method of solar neutron exploring with PAMELA neutron detector DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-528@cern.ch DESCRIPTION:Speakers: Victoria Goryacheva (NRNU MEPHI)\nThis work is devot ed to methodology of solar neutrons search during solar \nevents by using a neutron detector of the PAMELA the magnetic \nspectrometer on-board RESU RS-DK1 satellite. Analysis of counts rates showed that in the geomagnetic equator region the detector performance is nominal and \nbackground condit ions are stable. Maps of background fluxes were constructed and then 27 so lar events were examined in the period from December 2006\n to September 2 014. In some events\, there are evidence \n of neutrons count rate increas ing during solar events. To make conclusion about the nature of these neut rons statistics and monitoring intervals need to be increased\, that requi res the analysis of background conditions in the Polar Regions\n\nhttps:// indico.particle.mephi.ru/event/4/contributions/528/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/528/ END:VEVENT BEGIN:VEVENT SUMMARY:Measurement characteristic of charge particle fluxes in the wide a ngular range for the PAMELA calorimeter. DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-523@cern.ch DESCRIPTION:Speakers: Alexander Karelin (Dr)\nFor measurements of particle fluxes with the PAMELA calorimeter within the wide angular range it is im portant to estimate some parameters (energy and angular resolution\, accep tance\, efficiency of particle registration and so on). The GEANT 4 simula tion allowed to get values of such parameters. Here we present results of this simulation.\n\nhttps://indico.particle.mephi.ru/event/4/contributions /523/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/523/ END:VEVENT BEGIN:VEVENT SUMMARY:Asiago Supernova Catalogue objects subsample characteristics DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-513@cern.ch DESCRIPTION:Speakers: Alexander Lyapin (National Research Nuclear Universi ty "MEPhI")\nThe homogeneous subsample characteristics understanding is ne cessary for the investigation of any astrophysical objects redshift distri bution\, for example\, gamma-ray bursts. The type Ia supernovae considered as a homogeneous subsample because of suggestion that these luminous even ts might be used as standard candles for cosmological measurements occurs since the earliest studies of supernovae in 1938. The parameters of our Me tagalaxy Ω and ? were determine due sample of Ia supernovae from the Supe rnova Cosmology Project analysis in 1998. Since then more than 4000 supern ovae were added. \n\nThe results of the redshift distribution analysis for supernova from the catalog are presented in this work. The ability to use an analyzed dataset as homogeneous subsample also is discussed.\n\nhttps: //indico.particle.mephi.ru/event/4/contributions/513/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/513/ END:VEVENT BEGIN:VEVENT SUMMARY:The results of January 20\, 2005 solar flare study by narrow gamma lines DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-512@cern.ch DESCRIPTION:Speakers: Evgenia Troitskaya (SINP MSU)\nWe have studied the s olar flare of January 20\, 2005 by nuclear physics methods. The enreachmen t of the flare by helium-3 ions was found.\n\nhttps://indico.particle.meph i.ru/event/4/contributions/512/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/512/ END:VEVENT BEGIN:VEVENT SUMMARY:Verification of charge sign for high-energy particles measured by magnetic tracking system of PAMELA spectrometer DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-511@cern.ch DESCRIPTION:Speakers: Andrey Mayorov (National Research Nuclear University MEPhI)\nAnalysis of experimental data of primary positrones and antiproto ns fluxes obtained by PAMELA\nspectrometer\, recently confirmed by AMS-02 spectrometer\, for some reasons shows big interest to the\nhigh energies\, which are more than 100 GeV. In this work we present a method for identif ication of\nhigh-energy antiprotons on a background of imitating them prot ons due to finite instumental\nresolution for high energies (so-called spi llover). We base our approach on computing a set of\ndistinctive features represented by differently computed rigidities and training AdaBoost\nclas sifier\, which shows good classification accuracy of 89% for rigidity up t o 1000 GeV.\n\nhttps://indico.particle.mephi.ru/event/4/contributions/511/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/511/ END:VEVENT BEGIN:VEVENT SUMMARY:About models of solar atmosphere density vertical profile. DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-505@cern.ch DESCRIPTION:Speakers: Evgenia Troitskaya (SINP MSU)\nWe analyze several kn own models of solar atmosphere to find the most realistic one for understa nd nuclear interactions with it.\n\nhttps://indico.particle.mephi.ru/event /4/contributions/505/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/505/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of two-photon event generators for the KEDR experiment DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-497@cern.ch DESCRIPTION:Speakers: Valeri Tayursky (Budker INP\, Novosibirsk)\nThe KEDR experiment is dedicated to a study of c- and b-quarks and the\ntwo-photon physics at the $e^+ e^-$ collider VEPP-4M \nin the Budker Institute of Nu clear Physics.\nSince 2002 the KEDR detector has been collecting data in t he\nenergy range 2E $\\simeq 1.8\\div4$ GeV. \nThe main collection of dat a for the study of $\\gamma \\gamma$ physics\nis planned in the next few y ears\, after increasing VEPP-4M energy. \nThe detector is equipped with a special system to tag \nscattered electrons from $\\gamma \\gamma$ proc esses. \nThe system detects electrons corresponding to \nsmall $Q_i^2$ of virtual photons. It \nhas a high detection efficiency and \ngood invarian t $\\gamma \\gamma$ mass resolution.\nTo analyze the $2\\gamma$ data and e stimate contribution of two-photon\nbackground events in the 1$ \\gamma $ data samples\, the event generators\n$e^+e^- \\to e^+e^- \\mbox{ + }hadron s$\, \n$e^+e^- \\to e^+e^- \\mbox{ + } \\pi^+ \\pi^-$\, and\n$e^+e^- \\to e^+e^- \\mbox{ + }$PS have been developed.\nThe generator of pseudoscalar resonances production \n$e^+ e^- \\to e^+ e^- \\mbox{ + }$PS has the opti on of\ntaking into account radiative corrections in the mode with\na singl e tagging.\n\nhttps://indico.particle.mephi.ru/event/4/contributions/497/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/497/ END:VEVENT BEGIN:VEVENT SUMMARY:The mass density of electrons and positrons in some models of supe rluminous supernovae DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-495@cern.ch DESCRIPTION:Speakers: Natalia Dunina-Barkovskaya (Institute for Theoretica l and Experimental Physics (FSBI SSC RF ITEP))\nWe derived a simple expres sion for total mass density of electrons and positrons in the region of eq uation-of-state parameters where electron-positron pairs are dominant by n umber (as compared with baryons). We estimated the total mass density of e lectrons and positrons in some models of superluminous supernovae develope d by other authors. We found that at least in one model of pulsational pai r instability supernova the mass density of electrons and positrons is com parable with the mass density of baryons. This fact can be used to assess the possibility of non-standard gravitational interaction of positrons wit h electrons and baryons.\n\nhttps://indico.particle.mephi.ru/event/4/contr ibutions/495/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/495/ END:VEVENT BEGIN:VEVENT SUMMARY:Solar and galactic cosmic ray in epoch of "lowered" solar activity : the first half of XXI century DTSTART;VALUE=DATE-TIME:20161011T121500Z DTEND;VALUE=DATE-TIME:20161011T124500Z DTSTAMP;VALUE=DATE-TIME:20260808T133901Z UID:indico-contribution-84-477@cern.ch DESCRIPTION:Speakers: Vitaly Ishkov (leading scientific research)\nThe sta tistics of reliable solar cycles (SC) leads to the scenario of the regular changes in generation regime of the magnetic field in the solar convectio n zone from the epoch of ''increased'' ($) solar activity (SA) and vice ve rsa – from the epoch of ''lowered'' to the epoch of ''increased'' SA. Th ese epochs significantly differ from each other in parameters\, evolution characteristics and manifestations of sunspot-forming activity. From the c urrent 24 SC\, the Sun entered into second epoch of ''lowered'' SA\, which \, taking into account the steady nature of a sunspot reliable series\, mu st be prolonged 5 solar cycles ($\\sim$55 of years). The consequence of th e low values of the background solar magnetic field became the significant drop the value of interplanetary magnetic field\, which in turn led to th e significant increase (approximately on 20%) the fluxes of galactic cosmi c rays in the internal heliosphere in comparison with the epoch of "increa sed" SA (1944-1996). It is important to note that in the ''lowered'' SA e pochs there are not observed high solar cycles and in the ''increased'' SA epochs are forbidden the low solar cycles. In the current 24 SC the pictu re of solar proton activity principally changed: significantly reduce the amount of solar proton events in the whole energy range\, including GLE- e vents and there were no events with extreme proton flux (104 pfu). This fa cts shows that in the first half of the 21st century\, we will have a high background of galactic cosmic rays\, while the fluxes of solar protons an d their number will be significantly less. It follows that manned space fl ights in the free space will become very problematic and probably should b e postponed for the second half of the 21st century.\n\nhttps://indico.par ticle.mephi.ru/event/4/contributions/477/ LOCATION:Milan Hotel Hall of the 2nd floor URL:https://indico.particle.mephi.ru/event/4/contributions/477/ END:VEVENT END:VCALENDAR