BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Testbeam measurements and realistic simulation for straw drift tub es DTSTART;VALUE=DATE-TIME:20221202T094500Z DTEND;VALUE=DATE-TIME:20221202T100000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3230@cern.ch DESCRIPTION:Speakers: Andrei Zelenov ()\nTrackers build of straw drift tub es are a perfect solution for precise track measurements in High Energy an d Neutrino Physics experiments operating at low and moderate event rate. S traw Trackers will play crucial roles in such future detectors as Near-Det ector Complex of the DUNE experiment\, Hidden Sector Detector of the SHiP experiment and the SPD detector. Performance requirements on a Tracker and its readout electronics are defined by the Physics goals. Proper evaluati on of the designed Tracker performance demands realistic simulation and st udies with tracker prototypes. Preliminary results of the muon beam measur ements done with straw tube chambers at the SPS test beam line are compare d to predictions obtained with Garfield simulation package interfaced to L TSpice program for electronics circuit modelling.\n\nhttps://indico.partic le.mephi.ru/event/275/contributions/3230/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3230/ END:VEVENT BEGIN:VEVENT SUMMARY:From strangeness to charm and beauty with Inner Tracking System of ALICE at LHC DTSTART;VALUE=DATE-TIME:20221202T150000Z DTEND;VALUE=DATE-TIME:20221202T151500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3266@cern.ch DESCRIPTION:Speakers: Grigory Feofilov (Saint-Petersburg State University) \nFrom strangeness to charm and beauty with Inner Tracking System of ALICE at LHC\n\nGrigory Feofilov\, Saint-Petersburg State University\, RF\,\non behalf of the ALICE Collaboration\n \nIn the first part of this talk\, we present the major motivations for the current new ALICE physics progra mme of measurements of low-momentum charm and beauty hadrons and low-mass dielectrons in heavy-ion collisions at the LHC. These studies of rare proc esses will bring unique information on the properties of the quark-gluon p lasma (QGP) and\, in particular\, on the process of QGP thermalization and its quantitative characterisation\, including the heavy-flavour transport coefficients and space–time evolution of the QGP.\n\nWe will show also some several recent experimental observations by the ALICE collaboration i n studies of medium induced effects on strange and charm particles yields\ , shape of jets\, and of residual strong interaction between strange\, cha rm and light hadrons. With these interesting results\, new long-term physi cs ambitious goals appeared. To reach them\, it was required to solve the most challenging task of improving the ALICE performance for heavy-flavour detection. It was at the core of the ALICE upgrade programme in the last decade. The following goals had to be met: (i) coverage in transverse mome ntum to be as complete as possible\, in particular\, down to very low mome nta\, (ii) very accurate identification of secondary vertices from decayin g charm or beauty (D\, J/ψ\, Λc\, Λb). The ALICE Collaboration designed the entirely new Inner Tracking System (ITS2) with the increased capabili ties in readout speed\, impact parameter resolution and the reduced materi al budget. The ITS2 was installed in spring 2021\, commissioned with proto n beams in October 2021 and June 2022 and successfully operating in LHC Ru n 3 at high collision rates since July 2022.\n\nToday\, the high granulari ty ITS2 (12\,5 Gpixels) is the largest pixel detector ever built. It has 1 0 m2 of thin of 50 and 100 um thick ALPIDE chips— silicon monolithic act ive pixel sensors (MAPS) based on CMOS technology. We will present the sta tus of ALICE ITS2 in Run 3. We will also discuss briefly the future prospe cts for development of the next generation of vertex trackers — the ITS3 . The most central three cylindrical layers of silicon-only sensors with a further significant reduction in the material budget (0.3 → 0.05% X0/la yer)\, are supposed to be installed during the Long Shutdown 3 (in 2026-20 28).\n\nhttps://indico.particle.mephi.ru/event/275/contributions/3266/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3266/ END:VEVENT BEGIN:VEVENT SUMMARY:Generative Models in Particle Physics DTSTART;VALUE=DATE-TIME:20221202T164500Z DTEND;VALUE=DATE-TIME:20221202T170000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3231@cern.ch DESCRIPTION:Speakers: Sergei Mokhnenko ()\, Fedor Ratnikov (NRU Higher Sch ool of Economics)\nAt present\, the primary computational problems in part icle physics experiments is the amount\nof computing resources to facilita te the slow low level simulation of particles passing through\nthe detecto r material.\nA promising way to work around this problem driven by the low speed of the full low level Geant4 simulation\nis to use a data-driven su rrogate generative models instead. Such models may be trained to directly simulate\na higher level detector responses.\nHowever\, evil is in details \, not every surrogate model is equally useful from the physics perspectiv e.\nIn this talk we present our experience for developing fast simulation models for different use cases\,\nin different conditions\, and with diffe rent requirements\, and demonstrate how strongly those details\ndo affect the final solution.\nFuture prospects of fast simulation approaches which are based on using neural networks are also discussed.\n\nhttps://indico.p article.mephi.ru/event/275/contributions/3231/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3231/ END:VEVENT BEGIN:VEVENT SUMMARY:Simulation of the experimental program with ultracold neutrons and neutrino at the PIK reactor DTSTART;VALUE=DATE-TIME:20221202T093000Z DTEND;VALUE=DATE-TIME:20221202T094500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3151@cern.ch DESCRIPTION:Speakers: Alexey Fomin (NRC "Kurchatov institute" - PNPI)\nMon te Carlo simulation of the complex of research with ultracold neutrons at the PIK reactor (Gatchina\, Russia) is carried out. The complex is being b uilt on the basis of a high-intensity source of ultracold neutrons at the GEK-4 channel. A Monte Carlo model has been developed\, which includes a s ource\, a neutron guide system and experimental installations\, taking int o account their real location in the main hall of the reactor. With the he lp of calculations\, the sensitivities of measuring installations for the search for the electric dipole moment of the neutron and for the measureme nt of the neutron lifetime at the PIK reactor were obtained. \nMonte Carlo simulation of the new reactor antineutrino detector of the Neutrino-4 exp eriment at the PIK reactor is carried out. The scintillation-type detector is based on the inverse beta-decay reaction. As a result of the simulatio n\, the distributions of photomultiplier signals from the positron and the neutron are obtained. The efficiency of the detector depending on the sig nal recording thresholds is calculated. A simulation of results expected w ith employing of spectral independent method of data analysis is done taki ng into account geometric configuration of the reactor core and detector.\ n\nhttps://indico.particle.mephi.ru/event/275/contributions/3151/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3151/ END:VEVENT BEGIN:VEVENT SUMMARY:Ultracold neutrons source at NRC KI - PNPI for the study of fundam ental interactions DTSTART;VALUE=DATE-TIME:20221202T091500Z DTEND;VALUE=DATE-TIME:20221202T093000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3153@cern.ch DESCRIPTION:Speakers: Vitaliy Lyamkin (NRC "Kurchatov Institute" - PNPI)\n A more recently launched UCN source development utilizes superfluid helium (He-II) as conversion medium of cold neutrons into ultracold one. Initial ly proposed and designed for PNPI’s old WWR-M reactor\, the project has been reshaped to equip the institute’s PIK reactor with a modern UCN sou rce of this type. The projected UCN density in the closed source chamber i s 2200 cm-3\, which\, as calculations of neutron transport show\, will pro vide 200 cm-3 in the chambers of a neutron EDM spectrometer connected to t he source by a UCN guide. In general\, a broad research program is planned . The UCN guide system has been designed to feed up to five experimental f acilities. At the start of its operation\, it is planned to equip the UCN source with experimental setups already available at PNPI: an nEDM spectro meter and two neutron lifetime experiments\, one with a gravitational and one with a magnetic trap.\nExperiments at PNPI with a full-scale UCN sourc e model have demonstrated that a heat load of 60 W can be removed from the He-II in the converter at a temperature of 1.37 K. This fact confirms the practical possibility to implement low-temperature converters under “in -pile” conditions with large heat inflows. At present\, the manufacture of the source is close to be completed and preparations are underway for i ts preliminary tests.\n\nhttps://indico.particle.mephi.ru/event/275/contri butions/3153/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3153/ END:VEVENT BEGIN:VEVENT SUMMARY:Artificial neural networks application in estimating the impact pa rameter in heavy ion collision using the microchannel plate detector data DTSTART;VALUE=DATE-TIME:20221202T151500Z DTEND;VALUE=DATE-TIME:20221202T153000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3140@cern.ch DESCRIPTION:Speakers: Kirill Galaktionov ()\nEvaluation of the impact para meter in a single event of relativistic heavy ion collision is crucial for correct and efficient data processing and analysis. In this work\, we stu died the possibility of estimating the impact parameter in heavy ion colli sions by using artificial neural networks applied to the charged particle data from the fast microchannel plate (MCP) detectors.\n\nTo carry out com putational event-by-event experiments\, we used simulated data from 200\,0 00 A+A collisions of gold nuclei $(A = 197\, Z = 79)$\, at $\\sqrt{s_{NN}} = 11 \\mbox{ GeV}$\, obtained by the QGSM MC event generator. Charged par ticles multiplicity\, their spatial distribution and time-of-flight data w ere used as event features to be analyzed by the artificial neural network algorithms. \n\nWe investigated two different configurations of microchan nel plate detectors layout:\n\n - consisting of three pairs of small MCP s egmented rings with 5 cm outer and 3 cm of the inner diameter positioned i nside the vacuum beam-pipe symmetrically at distances of 1 m\, 1.7 m and 2 .5 m from the center of installation\n - consisting of one pair of large a rea segmented MCP rings with the outer diameter of 50 cm and 6 cm of the i nner one positioned outside the vacuum beam-pipe symmetrically at a distan ce of 4 m from the center of installation \n\nThese two configurations of MCP detectors layout have different data sets requirements and computation al requirements. In both configurations the readout anodes of the MCP ring s have certain segmentation in azimuth and radius. (The fast microchannel plate detector of charged particles was previously proposed for experiment s at NICA in [1]). \n \nWe show that the developed artificial neural netw orks technique is capable\, for both configurations of MCP detectors layou t\, to provide sufficiently good and fast results on the impact parameter determination in a single heavy ion collision event. In our first exercise s\, the proposed algorithm was capable to successfully classify more than 90% of $\\mbox{Au}+\\mbox{Au}$ collision events with the impact parameter less than 5 fm\, and it can be valuable as the fast trigger. We discuss al so further developments and possible applications of this technique in the future experimental setups.\n\n\n\n[1] A. A. Baldin\, G. A. Feofilov\, P. Har'yuzov\, F.F.Valiev\, Fast beam–beam collisions monitor for experime nts at NICA\, NIMA\, 958\, 162154\, 2019\, Reported at the VCI2019\, DOI:1 0.1016/j.nima.2019.04.10\n\nhttps://indico.particle.mephi.ru/event/275/con tributions/3140/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3140/ END:VEVENT BEGIN:VEVENT SUMMARY:The possibilities of using of monoenergetic electron production in a pyroelectric accelerator for calibration of different detectors DTSTART;VALUE=DATE-TIME:20221202T144500Z DTEND;VALUE=DATE-TIME:20221202T150000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3154@cern.ch DESCRIPTION:Speakers: Andrei Oleinik (Belgorod State Unversity)\nThe chang e in temperature of single crystals in vacuum conditions\, such as lithium tantalate (LiTaO3)\, gives an attractive possibility to generate and acce lerate electron and positive ions fluxes up to 100 keV and more. This phen omenon is a base of the conception of a pyroelectric accelerator. This typ e of the accelerator is a compact device\, which does not require an exter nal high-voltage circuit and the use of hazardous materials and can be use d for electron\, positive ion\, neutron and X-ray generation.\n\nOne of th e interesting features of the pyroelectric accelerator is the generation o f monoenergetic electron flux with a stable value of peak energy for a lon g time. The reason for such long-term stabilization of flux energy is not clear yet. Here we present studies of features of electron flux in pyroele ctric accelerator depending on the pressure of residual gas\, the distance between the crystal and the target-collimator. The possibilities and pers pectives of a use of the pyroelectric accelerator for calibration are disc ussed.\n\nThe work was supported by the grant from the Russian Science Fou ndation (project №21-72-00006).\n\nhttps://indico.particle.mephi.ru/even t/275/contributions/3154/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3154/ END:VEVENT BEGIN:VEVENT SUMMARY:Ionization loss simulation in several gap neutron detector based o n rigid layer converter and gaseous chamber DTSTART;VALUE=DATE-TIME:20221202T163000Z DTEND;VALUE=DATE-TIME:20221202T164500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3147@cern.ch DESCRIPTION:Speakers: Stanislav Potashev (Institut for Nuclear Research of the Russian Academy of Sciences)\nAn ionization loss simulation in severa l sequent gaps of the neutron detector is preformed. It is based on the ri gid layer converter so as boron-10 or lithium-6 and gaseous chamber. It wa s shown that the distribution of ionization losses over gas gaps varies si gnificantly depending on the incident neutron energy.The fact can be used to control the energy of the neutron flux using this detector.\n\nhttps:// indico.particle.mephi.ru/event/275/contributions/3147/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3147/ END:VEVENT BEGIN:VEVENT SUMMARY:Methods of data processing and analysis in the RED100 experiment. DTSTART;VALUE=DATE-TIME:20221202T161500Z DTEND;VALUE=DATE-TIME:20221202T163000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3152@cern.ch DESCRIPTION:Speakers: Olga Razuvaeva (NRNU MEPhI)\nThe RED-100 is a two-ph ase LXe detector designed for searching CEvNS of reactor antineutrino. In 2021 this detector was located on Kalinin NPP\, data collection was finish ed at the beginning of 2022. In this report methods of data processing and analysis\, signal correction\, event selection\, position and energy reco nstruction are described. Results of calibration and comparison with simul ation are shown. Also different approaches to background reduction are dis cussed.\n\nhttps://indico.particle.mephi.ru/event/275/contributions/3152/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3152/ END:VEVENT BEGIN:VEVENT SUMMARY:Analog spectrometer of the DGFRS-2 setup: status and developments DTSTART;VALUE=DATE-TIME:20221202T160000Z DTEND;VALUE=DATE-TIME:20221202T161500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3148@cern.ch DESCRIPTION:Speakers: Yury Tsyganov (JINR)\nAn upgraded version of the DGF RS-2 (the Dubna Gas-Filled Recoil Separator-2) analog spectrometer to sear ch for rare ER-α correlated sequence in a real-time mode to suppress radi cally cyclotron associated background signals is presented. New “flexibl e” algorithm to operate with new analog spectrometer of the DGFRS-2 inst alled at DC-280 (the JINR Superheavy Element Factory) cyclotron setup is u nder consideration. The main goal of application of this algorithm is to s earch an optimal time correlation recoil-alpha parameter directly during t he acquisition C++ YDS code execution [1-4]. Note that the spectrometer op erates together with the 48×128 strip DSSD (Double Side Strip Detector) d etector and low pressure pentane-filled gaseous detector (~1.2 Tor\; 80 x 230 mm2) are presented schematically. First beam test results in 48Ca and 242Pu\, 243Am\, 232Th and 238U targets induced nuclear reactions are prese nted too [5-7]. Registered implanted ER spectra are compared with calculat ed ones. Some attention is paid to stability tests. Half life systematic f or Z=119\,120 are considered in brief in connection with active correlatio n method application.\n\nReferences\n\n[1] D.Ibadullayev et al. // Acta Ph ys.Polonica B (2021) 16\, No.4\, 873-878\n\n[2] Yu.S.Tsyganov et al . // Acta Phys.Polonica B (2021) 14\, No.4\, 767-774\n\n[3] Yu.S.Tsyganov // Nu cl. Phys.&Ing. (2022) / in print/\n\n[4] D.Ibadullayev et al. //Eurasian J. (2022) 6\, num 1\, 18-31\n\n[5] Yu.Ts. Oganessian et al. // Phys.Rev C 106 (2022)\,024612-1-024612-13 \n\n[6] Yu.Ts. Oganessian et al. // Phys. Rev C 106\, (2022) L031301\n\n[7] Yu.Ts.Oganessian et al. // Nucl. Instru m. & Meth. Phys. Res. A 1033(2022) 166640\n\nhttps://indico.particle.mephi .ru/event/275/contributions/3148/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3148/ END:VEVENT BEGIN:VEVENT SUMMARY:Low-pressure Time Projection Chambers for Experiments with Low-ene rgy Ions DTSTART;VALUE=DATE-TIME:20221202T154500Z DTEND;VALUE=DATE-TIME:20221202T160000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3149@cern.ch DESCRIPTION:Speakers: Andrey Sokolov (BINP SB RAS)\nA series of low-pressu re time-projection chambers for experiments with low-energy ions is being developed at the Budker Institute of Nuclear Physics. The development of t he series began with the creation of a test chamber with the GEM based rea dout for the separation of ions by measuring the stopping range in the gas medium. This detector is designed to upgrade the accelerator based mass-s pectrometer (AMS) to be able to separate isobaric ions. At present\, the d edicated TPC has been successfully tested and is ready for installation on the AMS. The recent results of a new ion identification method will be pr esented. \nBased on the experience gained\, we plan to upgrade the TPC to use an optical readout. This method allows achieving good spatial resoluti on along with high time resolution.\nSuccessful implementation of this tec hnique will make it possible to carry out series of interesting experiment s\, in particular\, the study of the Migdal effect and the measurement of the cross section for the thermonuclear reaction proton - boron 11. \nPrel iminary results and some details will be discussed in the presentation.\n\ nhttps://indico.particle.mephi.ru/event/275/contributions/3149/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3149/ END:VEVENT BEGIN:VEVENT SUMMARY:Data acquisition system of the TPC/MPD detector of the NICA projec t DTSTART;VALUE=DATE-TIME:20221202T153000Z DTEND;VALUE=DATE-TIME:20221202T154500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3150@cern.ch DESCRIPTION:Speakers: Stepan Vereschagin (Joint Institute for Nuclear Rese arch)\nThe data acquisition system contains 1488 Front-End Cards (FEC) gro uped into 24 groups of 62 pcs. in each. Each FEC has an individual full-du plex few gigabit communication channel with Readout and Control Unit (RCU) . The RCU manages each FEC within the group\, collects data and then trans mits it via a high-speed optical channel. Every 4 optical channels are con nected to a Local Data Concentrator (LDC) server computer via a Data Conce ntrator Unit (DCU) card. Each of the 6 DCU controls four RCUs\, receives d ata from them and stores it into the LDC's memory via the PCIe interface.\ n The data acquisition system is operating with raw TPC event of size of 4 0 MB containing information up to 2000 tracks at central collision and tri gger rate of up to 7 kHz in zero suppression mode.\n Overall structure of the system and rich functionality realized in its main parts is described in the report.\n\nhttps://indico.particle.mephi.ru/event/275/contributions /3150/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3150/ END:VEVENT BEGIN:VEVENT SUMMARY:Commissioning of the forward detectors of the BM@N experiment DTSTART;VALUE=DATE-TIME:20221202T090000Z DTEND;VALUE=DATE-TIME:20221202T091500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3139@cern.ch DESCRIPTION:Speakers: Nikolay Karpushkin (INR RAS)\nThe BM@N experiment is an ongoing fixed-target experiment launched on the extracted beam of the Nuclotron accelerator to study highly compressed nuclear matter. The forwa rd detectors of the BM@N experiment are designed to determine the geometry of nucleus-nucleus collisions - the centrality and orientation of the rea ction plane\, as well as to measure the charge distributions of spectator fragments formed in nucleus-nucleus interactions. The forward detectors - the FHCal hadron calorimeter\, the beam quartz hodoscope and the scintilla tion wall will be used for the first time in the BM@N experiment. The resu lts of the response testing of forward detectors during the SRC (Short Ran ge Correlation) run with carbon beam will be presented.\n\nhttps://indico. particle.mephi.ru/event/275/contributions/3139/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3139/ END:VEVENT BEGIN:VEVENT SUMMARY:GEM central tracking system at the BM@N experiment DTSTART;VALUE=DATE-TIME:20221202T084500Z DTEND;VALUE=DATE-TIME:20221202T090000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3144@cern.ch DESCRIPTION:Speakers: Andrey Galavanov ()\nBaryonic Matter at Nuclotron (B M@N) is the first experiment at the NICA accelerator complex. The aim of t he BM@N experiment is to study interactions of relativistic heavy ion beam s with fixed targets. Detectors based on Gas Electron Multipliers (GEM) ar e used of the central tracking system\, which is located inside the BM@N a nalyzing magnet. The next BM@N physics run is planned at the end of 2022. The current installation and commissioning status of the GEM tracking syst em is presented.\n\nhttps://indico.particle.mephi.ru/event/275/contributio ns/3144/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3144/ END:VEVENT BEGIN:VEVENT SUMMARY:Time-Of-Flight Neutron Detector Prototype for BM@N Experiment DTSTART;VALUE=DATE-TIME:20221202T083000Z DTEND;VALUE=DATE-TIME:20221202T084500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3145@cern.ch DESCRIPTION:Speakers: Aleksandr Makhnev (INR of RAS)\nA new Time-Of-Flight neutron detector for the BM@N experiment at JINR\, Dubna is planned to be developed and produced. This detector will identify and measure the energ ies of neutrons produced in nucleus-nucleus collisions at energies up to 4 AGeV. Detector design utilizes small (40x40x25mm) scintillator tiles with solid-state readout\, with timing resolution of up to 100-150ps. A small- scale prototype of the future detector is produced and tested.\n\nDetector prototype's layout\, design of mechanical structure and electronics\, as well as the results of the cosmic ray tests are discussed.\n\nhttps://indi co.particle.mephi.ru/event/275/contributions/3145/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3145/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of the Time of Flight System of the Mpd Experiment at the N ica Collider DTSTART;VALUE=DATE-TIME:20221202T081500Z DTEND;VALUE=DATE-TIME:20221202T083000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3143@cern.ch DESCRIPTION:Speakers: Victor Baryshnikov (Joint Institute for Nuclear Rese arch\, Joliot-Curie st. 6\, Dubna\, Russia. hysics Department\, M.V. Lomon osov Moscow State University\, Leninskie Gory\, 1-2\, Moscow\, Russia.)\nN ICA (Nuclotron-based Ion Collider fAсility) is a new accelerator complex designed at the Joint Institute for Nuclear Research to study properties o f dense baryonic matter. Two interaction points are foreseen in the NICA c ollider: one for studying the collision of heavy ions on the Multipurpose detector MPD\, the other for polarized beams for the experiment on the SPD installation. The ambitious physical goals of MPD require excellent parti cle identification at the maximum possible range of phase space. Identific ation of charged hadrons is achieved by combining time-of-flight measureme nts and dE/dx energy loss measurements from the time-projection camera TPC . \n\nTOF will provide:\n\n - large pseudorapidity region of |η| ≤ 1.2\ ; \n - high granularity to keep the overall system occupancy below 15% \n and minimize efficiency degradation due to double hits\;\n - good positi on resolution to ensure efficient matching of hits in the TOF system with TPC tracks\;\n - high geometrical efficiency and detection efficiency\;\n - identification of pions and kaons with pt \n\nhttps://indico.particle .mephi.ru/event/275/contributions/3143/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3143/ END:VEVENT BEGIN:VEVENT SUMMARY:MPD TPC status DTSTART;VALUE=DATE-TIME:20221202T080000Z DTEND;VALUE=DATE-TIME:20221202T081500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3141@cern.ch DESCRIPTION:Speakers: Sergey Movchan (JINR\, Dubna\, Russia)\nIn the frame of the JINR scientific program on study of hot and dense baryonic matter a new accelerator complex Ion Collider fAcility (NICA) based on the Nuclot ron-M is under realization. It will operate at a luminosity up to 1027 cm- 2 s-1 for ions up to Au79+. Two interaction points are foreseen at NICA fo r two detectors which will operate simultaneously. One of these detectors\ , the Multi-Purpose Detector (MPD)\, is optimized for investigations of he avy-ion collisions. The Time-Projection Chamber (TPC) is the main tracking detector of the MPD central barrel. It is a well-known detector for 3-dim ensional tracking and particle identification for high multiplicity events . The conceptual layout of MPD\, TPC design and it’s parameters\, the cu rrent status of the readout based on multiwire proportional chamber (MWPC) and readout electronics based on SAMPA chip as well as the status of TPC subsystems are presented.\n\nhttps://indico.particle.mephi.ru/event/275/co ntributions/3141/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3141/ END:VEVENT BEGIN:VEVENT SUMMARY:A gaseous beam monitor for the CSR external-target experiment DTSTART;VALUE=DATE-TIME:20221202T074500Z DTEND;VALUE=DATE-TIME:20221202T080000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3146@cern.ch DESCRIPTION:Speakers: Hulin Wang (Central China Normal University)\nThe co ol storage ring (CSR) external-target experiment (CEE) will be the first l arge-scale nuclear physics experiment at the Heavy Ion Research Facility i n Lanzhou (HIRFL). Within the project of CEE\, a gaseous detector is being developed for the beam monitoring. It is designed to measure the lateral position of each beam particle up to a rate of $10^{6}$ pps with a spatial resolution better than 50 $\\mu$m\, and with minimum interference with th e beam. The beam monitor mainly consists of two field cages inside a gas v essel with electrical fields orthogonal to each other\, and custom-designe d charge sensing and readout chips on the anode of each field cage. Two pr ototypes have been developed\, with upgraded charge sensor and readout sys tem on the second one. The charge sensor integrates in the same chip the c harge sensing and readout functionalities\, and is intended to be used as direct charge sensor\, or with the gas electron multiplier (GEM). We will present the design and test of the prototypes\, with a focus on the CMOS c harge sensor of the second one.\n\nhttps://indico.particle.mephi.ru/event/ 275/contributions/3146/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 URL:https://indico.particle.mephi.ru/event/275/contributions/3146/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of ASICs for experiments at NICA DTSTART;VALUE=DATE-TIME:20221201T163000Z DTEND;VALUE=DATE-TIME:20221201T165000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3138@cern.ch DESCRIPTION:Speakers: Eduard Atkin (MEPhI)\, Artur Serazetdinov (MEPhI)\nT he results of development and laboratory testing of a prototype data conce ntrator integrated circuit (ASIC HUBv1) are presented. HUBv1 was developed for processing of signals from the detector chips of the time-projection chamber of the MPD experiment (NICA\, Dubna). The main target of this ASIC is uninterrupted processing and serialization of digital output data from two SAMPA detector chips and their transmission via AWG-36 type cables up to 1 m long at the speed of 2.56 Gbit/s to the data acquisition controlle r board. Eight data and six SLVS clock ports are used to connect the SAMPA chips. The received data is error-checked using Hamming code and is avail able on the two high-speed CML output ports\, each with bandwidth up to 2. 56 Gbps. Both SAMPA and SIMC chips are controlled by issuing control comma nds via the high-speed CML or slow SPI interfaces.\nThe HUBv1 prototype wa s manufactured using TSMC's 65 nm CMOS technology and packaged in CPGA120- type packages. The total power consumption of the ASIC does not exceed 500 mW. The results of laboratory testing of the chip and radiation resistanc e testing of the analog blocks are presented.\n\nThe development of key bu ilding blocks of a prototype application specific integrated circuit (ASIC ) for the SPD experiment at NICA Nuclotron (Dubna) is presented. It was de signed as an 8-channel fully differential amplifier-discriminator which co uld be used as a front-end electronics for resistive plate chambers as wel l as for time-of-flight measurements.\n\nThe ASIC has an architecture simi lar to the NINO chip developed at CERN. Each channel consists of the foll owing functional blocks: a current preamplifier-shaper with the peaking ti me of 500 ps\, low-frequency feedback with built-in threshold preset circu it\, few additional amplification stages\, pulse stretcher\, LVDS output s tage and some other supporting blocks. The chip is optimized for the input capacitance in range 1-10 pF\, has adjustable threshold of 10-450 fC\, an d adjustable stretching time of 1-100 ns. The equivalent noise charge is n ot more than 2500 e at input capacitance up to 10 pF. The design was optim ized for reducing front-edge jitter (less than 15 ps). Both schematic and layout of designed blocks are presented\, simulation results are shown. PV T variation and Monte-Carlo mismatch plots are also given.\n\nThe developm ent was conducted in the 180 nm CMOS process PDK of Mikron fab at Zelenog rad. GDSII file was submitted to the factory at late August 2022.\n\nhttp s://indico.particle.mephi.ru/event/275/contributions/3138/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3138/ END:VEVENT BEGIN:VEVENT SUMMARY:Genetic Algorithm for determination of event collision time and pa rticle identification by Time-Of-Flight at SPD NICA DTSTART;VALUE=DATE-TIME:20221201T161500Z DTEND;VALUE=DATE-TIME:20221201T163000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3137@cern.ch DESCRIPTION:Speakers: Semyon Yurchenko (Saint Petersburg State University\ , Laboratory of ulta-high energy physics)\nStudying spin-related phenomena will help uncover information about internal structure of nucleon. It can be done using polarized beams of protons and deuterons. To study those ef fects on NICA collider it is proposed to install the Spin Physics Detector (SPD) in one of two interaction points.\n\nIn this work two problems were studied. First is developing a fast and accurate algorithm for determinati on of $pp$-collision time($t_{0}$) for the SPD experiment [1]. Second is d eveloping particle a identification(PID) procedure based on $TOF$ signals. \n\nUsage of $TOF$ detectors to identify particles is one of the most reli able technique. To reconstruct the particle mass only three values are nee ded: $\\vec{p}$ - momentum of the particle\, $L$ - arc length of the parti cle trajectory and $TOF$ - Time-Of-Flight. To measure $TOF$ one needs star t($t_{0}$) and stop signals. While stop signals are obtained with $TOF$ de tector\, $t_{0}$ cannot be measured directly. Main idea for $t_{0}$ determ ination: for tracks in the event find a set of masses that minimises sum o f the squares of the residuals ($\\chi^{2}$). \n\nTo solve $\\chi^{2}$ min imisation problem Differential Evolution-inspired [2] Genetic Algorithm(GA ) was developed and it's results were compared to Brute Force Algorithm(BF A). BFA have very slow run time\, but it provides the exact solution to th e $\\chi^{2}$ minimisation problem. So main requirements to GA was to decr ease run time while keeping high accuracy. \n\nWith a reliable method for $t_{0}$ determination\, particle identification can be performed. There ar e several approaches that can be used for PID procedure [3]. In this work Bayesian approach\, "n-sigma" criteria and solution for $\\chi^{2}$ minimi sation problem were compared.\n\n\n 1. Conceptual design of the Spin Phys ics Detector. arXiv:2102.00442\n 2. E. Zhabitskaya and M. Zhabitsky\,\n Proceedings of the 15th annual conference on Genetic and evolutionary comp utation\, GECCO'13\, ACM\, 455--462 (2013)\n 3. The ALICE Collaboration.\ , Adam\, J.\, Adamová\, D. et al. Particle identification in ALICE: a Bay esian approach. Eur. Phys. J. Plus 131\, 168 (2016). https://doi.org/10.11 40/epjp/i2016-16168-5\n\nhttps://indico.particle.mephi.ru/event/275/contri butions/3137/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3137/ END:VEVENT BEGIN:VEVENT SUMMARY:Cryogenic scintillation CsI(pure) detector of low energy neutrino DTSTART;VALUE=DATE-TIME:20221201T160000Z DTEND;VALUE=DATE-TIME:20221201T161500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3131@cern.ch DESCRIPTION:Speakers: Alexander Strizhak (INR RAS\, MIPT)\nDetection of lo w energy neutrino is a challenging task for advanced \nstudies of coherent neutrino scattering processes or for the observation \nof neutrino magnet ic momentum. For this purpose\, the detector must be \ncapable to register the deposited energies starting from a hundred of \neV. One of the optio n is the development of CsI(pure) scintillation \ndetector operating at th e temperature of liquid nitrogen. It is known\, \nthat this scintillator c ould achieve the record light yield of about 120 \nthousand photons per on e MeV of deposited energy. It means that 100 eV \nenergy deposition corres ponds to 12 photons\, that can be detected by \nadvanced photodetectors.In this work we present the performance of \nsmall CsI(pure) scintillation c ell which is readout by compact silicon \nphotomultiplers (SiPM) with high detection efficiency. The SiPM thermal \nnoises and the achieved light co llection efficiency are presented. It \nwill be shown that signal of about 30 photoelectrons/keV is attainable \nin such configuration of detector.\ n\nhttps://indico.particle.mephi.ru/event/275/contributions/3131/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3131/ END:VEVENT BEGIN:VEVENT SUMMARY:Upgrade of Projectile Spectator Detector at NA61/SHINE experiment DTSTART;VALUE=DATE-TIME:20221201T154500Z DTEND;VALUE=DATE-TIME:20221201T160000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3134@cern.ch DESCRIPTION:Speakers: Sergey Morozov (INR RAS)\nThe NA61/SHINE is a fixed target experiment at SPS (CERN) aimed to study proton-ion and ion-ion coll isions with the energy range 13 – 150 AGeV. A new physics program of the NA61/SHINE experiment beyond 2020 includes open charm measurements. The i ncreased by an order of magnitude beam rate requires detectors upgrade to work with high trigger rate and to survive in new high radiation condition s.\n\nThe Projectile Spectator Detector (PSD)\, a sampling hadron calorime ter\, is used in the NA61/SHINE experiment to measure the collision centra lity and reconstruct the event plane. Instead of the present PSD\, two for ward calorimeters are used. The first one is modified current PSD with bea m hole in the center and the second one is a new calorimeter with small tr ansverse sizes placed downstream to detect heavy fragments. Details of th e PSD upgrade as well as results of the performance studies for new calori meter system with simulations will be presented.\n\nhttps://indico.particl e.mephi.ru/event/275/contributions/3134/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3134/ END:VEVENT BEGIN:VEVENT SUMMARY:Cast lead-polystyrene spaghetti type calorimeter for LHCb ECAL Upg rade II DTSTART;VALUE=DATE-TIME:20221201T153000Z DTEND;VALUE=DATE-TIME:20221201T154500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3130@cern.ch DESCRIPTION:Speakers: Igor Diachkov (NUST MISiS)\nThe LHCb Upgrade phase I I aims to collect $300 fb^{-1}$ in a few years operating at a luminosity o f $1.5*10^{34} cm^{-2} s^{-1}$. This requires a significant change of the systems including the electromagnetic calorimeter (ECAL)\, which must be c apable to sustain integrated radiation doses up to 1 MGy in the innermost region. The second major requirement is time resolution of the order of a few tens of picoseconds. The new ECAL will be subdivided into zones: spagh etti calorimeter (SPACAL) in the central part with the highest expected ra diation doses and zones with Shashlik-type modules of different granularit y.\nThe SPACAL region is subdivided into an innermost region with tungsten 3D-printed absorber and radiation hard crystals (e.g. GAGG\, GFAG) with $ 15*15mm^2$ cell size\, and an intermediate region with a cast lead-based a bsorber and polystyrene scintillating fibres.\nThis talk presents the resu lts of the first cast lead-polystyrene spacal prototype studies performed with an electron beam at the CERN SPS test-beam facility.\n\nhttps://indic o.particle.mephi.ru/event/275/contributions/3130/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3130/ END:VEVENT BEGIN:VEVENT SUMMARY:MiniSPD test bench for testing of SPD detector prototypes. DTSTART;VALUE=DATE-TIME:20221201T151500Z DTEND;VALUE=DATE-TIME:20221201T153000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3133@cern.ch DESCRIPTION:Speakers: Elena Kokoulina (JINR)\nSPD (Spin Physics Detector) collaboration proposes to install a universal setup in the second interact ion point of the NICA collider (JINR\, Dubna) to study the spin structure of the proton and deuteron. It will be able to research of spin-related ph enomena with polarized proton and deuteron beams at a collision energy up to 27 GeV and a luminosity up to 10$^{32}$ cm$^{-2}$ s$^{-1}$. In this rep ort we inform about the basic tasks of SPD project. We manufactured a test bench MiniSPD to check the SPD detector prototypes with cosmic muons. The current results of simulation and comparison with data on cosmic rays at this stand are presented.\n\nhttps://indico.particle.mephi.ru/event/275/co ntributions/3133/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3133/ END:VEVENT BEGIN:VEVENT SUMMARY:About an accuracy of ECal/MPD calibration with cosmic muons DTSTART;VALUE=DATE-TIME:20221201T150000Z DTEND;VALUE=DATE-TIME:20221201T151500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3135@cern.ch DESCRIPTION:Speakers: Viacheslav Kulikov (NRC "Kurchatov institute")\nM.Bh attacharjee1\,3\, S.A.Bulychjov2\, Yu.F.Krechetov1\, V.V. Kulikov2\,\nM.A. Martemianov2\, M.A. Matsyuk2\, I.A. Tyapkin1\n1 Joint Institute for Nucle ar Research\, 141980\, Dubna\, Russia\n2 National Research Center “Kurch atov Institute”\, Moscow\, 123182 Russia\n3 Gauhati University\, Guwahat i\, Assam 781014\, India\n In a framework of the NICA/MPD project [1]\, a cylindrical electromagnetic calorimeter (ECal) [2] with an internal(ext ernal) diameter of 3.45 (4.6) m \, a length of 6 m and a total weight of a bout 60 tons is under construction. The calorimeter consists of 38\,400 “shashlik”-type towers with 210 alternating layers of a 1.5 mm scintil lator and 0.3 mm lead coated with reflective paint. The shapes of the towe rs are of 64 types. Approximately they are truncated pyramids with a base of 4x4 cm2\, height of 41 cm and vertex angles of 0.9 and 1.2 degrees in t he longitudinal and transverse plane relative to the cylinder axis. ECal i mplements the so-called projective geometry when the axes of all towers lo ok at one point - the intersection point of the collider beams located in the center of the cylinder. Every 16 towers are combined into 2400 modules of 8 types. Large number of modules have been already produced [3] and te sted on electron beams and cosmic rays [4\,5]. In this report we discuss t he energy calibration procedure with cosmic muons with the main emphasis o n its accuracy and corrections needed for different types of the towers an d their orientation in space. The results are based on MC simulation and c omparison with the existing measurements. \n[1] The MPD Collaboration: V. Abgaryan et al. «Status and initial physics performance studies \n of the MPD experiment at NICA. Eur.Phys.J.A 58 (2022) 7\, 1 40.\n[2] V.V. Kulikov et al. ECal MPD: geometry and simulation. 2020 JINST 15 C09017. [3] Y. Li et al. Production and quality control of NICA-MPD sh ashlik electromagnetic calorimeter \n in Tsinghua University. JINST 17 (2022) 04\, T04005.\n[4] V.A. Baskov et al. Electron Beam Test of the M PD Electromagnetic Calorimeter on the Pakhra \n Synchrotron. Phys.Par t.Nucl. 52 (2021) 4\, 663.\n[5] M. Bhattacharjee et al. Calibration of NIC A-MPD electromagnetic calorimeter modules with \n cosmic muons. 20 20 J. Phys.: Conf. Ser. 1690 012052.\n\nhttps://indico.particle.mephi.ru/e vent/275/contributions/3135/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3135/ END:VEVENT BEGIN:VEVENT SUMMARY:Improvement of the energy resolution for neutral hadrons in highly granular calorimeters based on a neural network approach DTSTART;VALUE=DATE-TIME:20221201T144500Z DTEND;VALUE=DATE-TIME:20221201T150000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3132@cern.ch DESCRIPTION:Speakers: Sergey Korpachev (LPI)\nThe technology of highly gra nular calorimeters is one of the main innovations that will be implemented in planned experiments on future colliders. This work shows an algorithm for the improvement of energy resolution in highly granular calorimeters b ased on a machine learning technique. An artificial neural network\, which helps to connect calorimeter observables\, was trained and tested. The st udy was performed on a simulated version of the detector with highly granu lar calorimeters for single hadrons with energies from 1 to 120 GeV.\n\nht tps://indico.particle.mephi.ru/event/275/contributions/3132/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3132/ END:VEVENT BEGIN:VEVENT SUMMARY:Prediction of electromagnetic fraction in a hadronic shower using deep neural network DTSTART;VALUE=DATE-TIME:20221201T143000Z DTEND;VALUE=DATE-TIME:20221201T144500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3136@cern.ch DESCRIPTION:Speakers: Marina Chadeeva (P.N. Lebedev Physical Institute of RAS (LPI))\nThe intrinsically large variation of the energy deposited in a calorimeter by hadrons imposes limitations on the improvement of hadron e nergy resolution. The fluctuation of electromagnetic fraction within a had ronic shower is known to be one of the main sources of such variations. Se veral techniques were developed to improve the energy resolution for hadro ns including the so called hardware compensation (compensating and dual-re adout calorimeters) and software compensation approaches. The reliable pre diction of the amount of electromagnetic fraction on an event-by-event bas is opens a possibility to correct the energy during the offline reconstruc tion and improve the energy resolution. In this study\, the samples were i nvestigated of hadronic showers simulated with physics lists from Geant4 p ackage version 10.3 in the model of a highly granular hadron calorimeter f or the initial hadron energies 10--80 GeV. The deep neural network was tra ined using a supervised learning and calorimetric observables as inputs to predict the electromagnetic fraction in a shower. The achieved neural net work performance and observed improvement in hadron energy resolution of m ore than 15% are presented and discussed.\n\nhttps://indico.particle.mephi .ru/event/275/contributions/3136/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3136/ END:VEVENT BEGIN:VEVENT SUMMARY:Observation of the DANSS plastic scintillator aging during of 6 ye ars of operation DTSTART;VALUE=DATE-TIME:20221201T094500Z DTEND;VALUE=DATE-TIME:20221201T100000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3128@cern.ch DESCRIPTION:Speakers: Igor Alekseev (KCTEP NRC KI)\nAging of the plastic s cintillators plays a significant role in the degradation\nof detectors per formance. Several effects are considered responsible for\nthis process lik e mechanical stresses\, water penetration and oxidation.\nThe DANSS detect or core consists of 2500 polystyrene based scintillation strips. \nThe det ector is located just below an industrial nuclear reactor\nof Kalininskaya NPP. The room housing the detector is air conditioned and \nhas very low humidity. The temperature of about 20C was sustained at\nthe detector core . The performance of the scintillator is permanently\nmonitored with cosmi c muons passing through the detector. 6 years of\nobservation are reported since April 2016 till March 2022. The light yield\ndegradation about 1% p er year is observed.\n\nhttps://indico.particle.mephi.ru/event/275/contrib utions/3128/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3128/ END:VEVENT BEGIN:VEVENT SUMMARY:DANSS Detector Upgrade DTSTART;VALUE=DATE-TIME:20221201T093000Z DTEND;VALUE=DATE-TIME:20221201T094500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3125@cern.ch DESCRIPTION:Speakers: Dmitry Svirida (ITEP)\nDANSS detector at Kalininskay a nuclear power plant sets world records in antineutrino detection. Counti ng rates of up to 5000 events per day made it possible to collect more tha n 6.5 million antineutrinos in 6 years of stable operation. The data sampl e is extremely clean and features the signal to background ratio in excess of 50. Yet only moderate energy resolution of 34% at 1 MeV limits the sen sitivity of the experiment for the sterile neutrino searches. \nThe upgrad e of the detector is aimed at more than twice better energy resolution of 12% at 1 MeV. Besides that the sensitive volume will be increased by 70% i nside the same shielded space on the lifting platform. The talk will addre ss the details and the status of the upgrade together with the first resul ts of testing. The expected influence of the improvements on the sensitivi ty for the sterile neutrino will also be discussed.\n\nhttps://indico.part icle.mephi.ru/event/275/contributions/3125/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3125/ END:VEVENT BEGIN:VEVENT SUMMARY:Puzzle in decoherence measurements of entangled annihilation photo ns DTSTART;VALUE=DATE-TIME:20221201T091500Z DTEND;VALUE=DATE-TIME:20221201T093000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3123@cern.ch DESCRIPTION:Speakers: Sultan Musin (INR RAS)\nThe annihilation photons are the first system where the entanglement of quantum states was experimenta lly studied. These photons are produced in the positron-electron annihilat ion and have 511 keV energy that coincides with the electron mass. Accordi ng to the theory\, two photons have mutually perpendicular linear polariza tions\, and their quantum states are entangled. Inspite of extensive studi es the entanglement was not experimentally proved due to the low efficienc y of Compton polarimeters that are the only tool for the polarization meas urements of photons with such a high energy. We constructed the setup that allows a direct comparison of polarization correlations for both\, entang led and decoherent quantum states. The natural expectation is observation of principal differences in behavior of these two different quantum states . Nevertheless\, the experimental results reveal the same behavior in the polarization correlations of both\, entangled and decoherent states. We di scuss the construction of setup\, Monte Carlo simulation and the experimen tal measurements of entangled and decoherent annihilation photons. A physi cal interpretation of the data is presented.\n\nhttps://indico.particle.me phi.ru/event/275/contributions/3123/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3123/ END:VEVENT BEGIN:VEVENT SUMMARY:Current status of the novel 3D SuperFGD detector for the T2K exper iment DTSTART;VALUE=DATE-TIME:20221201T090000Z DTEND;VALUE=DATE-TIME:20221201T091500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3127@cern.ch DESCRIPTION:Speakers: Anna Dergacheva (Institute for Nuclear Research of t he Russian Academy of Sciences\, 117312 Moscow\, Russia )\nT2K (Tokai to K amioka) is the first long-base neutrino experiment with the concept of an off-axis neutrino beam generated by a 30 GeV proton synchrotron (PS) based on the Japan Proton Accelerator Research Complex (J-PARC). \nThis project is aimed at finding of a new source of violation of charge-conjugation pa rity-reversal CP-symmetry in the neutrino sector - a necessary element for explaining physical phenomena beyond the Standard Model\, namely the bary on asymmetry of the Universe (the matter-antimatter disparity) and leptoge nesis. \nCurrently\, the T2K experiment excludes the CP-conservation ($\\delta_{CP} = 0\,\\pi$) at the level of 90% CL [1]. In order to increase its sensitivity to CP-vi olation\, it is necessary to reduce systematic uncertainties in predicting the number of events at the far water Cherenkov detector Super-Kamiokande up to 3-4% from the current level of 6-7%. Thus\, an intensive upgrade pr ogram of the ND280 off-axis detector was launched [2]. As a part of this u pgrade\, a new fully segmented 3D neutrino scintillation detector SuperFGD was proposed and designed. It will allow precision measurements of neutr ino cross-sections and significantly increase the sensitivity to CP-violat ion in long-base experiments. \nSuperFGD with a total weight of about t wo tons\, consisting of two million optically isolated cubes\, each of the m with a volume of 1 cm$^3$ and with three holes for inserting wavelength shifting fibers (a total of 60\,000 channels for signal readout)\, was pro duced in Russia and will be a key element of the new upgraded near detecto r of the T2K experiment. All active 56 layers of the SuperFGD and the asse mbly platform have been shipped to Japan in June 2022. The assembly of the SuperFGD was started at J-PARC in October 2022. \nSuch impor tant components of the SuperFGD detector as electronics\, mechanics\, phot osensors\, LED calibration system\, DAQ are also being actively prepared and will be discussed. The current status and upcoming plans for the SFGD as a part of the ND280 upgrade will be presented at the conference.\n\nRef erences \n\n[1] K. Abe\, et al.\, Constraint on the matter-antimatter symm etry-violating phase in neutrino oscillations\, Nature 580 (2020) 7803\, 3 39-344. arXiv:1910.03887. \n\n
[2] K. Abe\, et al.\, T2K ND280 Upgrade - Technical Design Report. arXiv:1901.03750 
[physics.ins-det].\n\nhttps: //indico.particle.mephi.ru/event/275/contributions/3127/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3127/ END:VEVENT BEGIN:VEVENT SUMMARY:Antineutron reconstruction and identification in electromagnetic c alorimeter DTSTART;VALUE=DATE-TIME:20221201T084500Z DTEND;VALUE=DATE-TIME:20221201T090000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3124@cern.ch DESCRIPTION:Speakers: Pavel Gordeev ()\nAntineutron studies are an unexplo red domain of high energy physics. Several directions of research can be o utlined\, such as: measuring of hadrons decaying into antineutrons\, measu ring the interaction of antineutrons with hadrons\, and searching for boun d states of antineutrons. We present a method for measuring antineutrons b y the electromagnetic calorimeter PHOS of the ALICE experiment. The antine utron can be identified by the cluster shape and the energy deposition in the calorimeter\, and its momentum can be reconstructed using time-of-flig ht information. The proposed method was verified via searching for decays $\\bar{\\Sigma}^{+}\\rightarrow\\bar{n}\\pi^{+}$and $\\bar{\\Sigma}^{-}\\r ightarrow\\bar{n}\\pi^{-}$with an antineutron reconstructed in PHOS.\n\nht tps://indico.particle.mephi.ru/event/275/contributions/3124/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3124/ END:VEVENT BEGIN:VEVENT SUMMARY:Detectors of the SPASCHARM experiment at U70 accelerator DTSTART;VALUE=DATE-TIME:20221201T082500Z DTEND;VALUE=DATE-TIME:20221201T084500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3129@cern.ch DESCRIPTION:Speakers: Pavel Semenov ()\nData taking has been started at th e first stage of the polarization experiment SPASCHAR$M at U70 accelerator . The report describes the detectors of the current experimental setup as well as the results of measurements of their characteristics during the be am data taking in the runs of 2018-2022\n\nhttps://indico.particle.mephi.r u/event/275/contributions/3129/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3129/ END:VEVENT BEGIN:VEVENT SUMMARY:Simulation of the pp-\, pd- and dd- elastic scattering for the pol arimetry at NICA DTSTART;VALUE=DATE-TIME:20221201T081000Z DTEND;VALUE=DATE-TIME:20221201T082500Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3122@cern.ch DESCRIPTION:Speakers: Arkadiy Terekhin (JINR)\nThe possibility to use the pp-\, pd- and dd- elastic scattering for the polarimetry at NICA using the existing experimental data is discussed. The first results of the simulat ion of these processes at the total energy up to 27 GeV for the segmented scintillation counter are presented.\n\nhttps://indico.particle.mephi.ru/e vent/275/contributions/3122/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3122/ END:VEVENT BEGIN:VEVENT SUMMARY:The absolute polarimeter based on reaction of pp elastic scatterin g at the SPASCHARM facility at U70. DTSTART;VALUE=DATE-TIME:20221201T075500Z DTEND;VALUE=DATE-TIME:20221201T081000Z DTSTAMP;VALUE=DATE-TIME:20260611T070340Z UID:indico-contribution-188-3126@cern.ch DESCRIPTION:Speakers: Marina Nurusheva (MEPhI)\nThe absolute polarimeter f or measurements of proton and antiproton beam polarizations at the SPASCHA RM experiment at U-70 of IHEP\, Protvino\, is discussed. Polarized target will be used to measure analyzing power AN of the elastic reactions. Measu red value of AN is required to define beam polarization. Two different det ectors of the experimental setup were analyzed. The first one is supposed to use scintillation counters\, the second detector is based on proportion al chambers. Efficiency of registration of elastic pp scattering is compar ed for two configurations of the experimental setup.\n\nhttps://indico.par ticle.mephi.ru/event/275/contributions/3126/ LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 1 URL:https://indico.particle.mephi.ru/event/275/contributions/3126/ END:VEVENT END:VCALENDAR