A5026721671- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Radiation Detection and Scintillator Technologies
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Nuclear Physics and Applications
- Radiation Therapy and Dosimetry
- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Biofield Effects and Biophysics
- Radioactive Decay and Measurement Techniques
- Quantum Mechanics and Applications
- Nuclear reactor physics and engineering
- Gamma-ray bursts and supernovae
Institute for Nuclear Research
2019-2022
Moscow Institute of Physics and Technology
2019-2022
Abstract An experimental setup for studying the Compton scattering of annihilation photons in various (entangled and decoherent) quantum states is presented. Two entangled γ -quanta with an energy 511 keV mutually orthogonal polarizations are produced by positron-electron a thin aluminum plate emitted opposite directions. To measure both photons, provides two equivalent arms polarimeters. A polarimeter consists plastic scintillation scatterer array NaI(Tl) detectors measuring deflected at...
The main purpose of the FHCal is to provide an experimental measurement a heavy-ion collision centrality (impact parameter) and orientation its reaction plane. consists two identical arms placed at left/right sides from beam point. Due fine modular structure detection spectators in both forward/backward regions, angular resolution plane reconstruction below 30 degrees. Since heavy fragments escape into holes, it not possible distinguish central peripheral collisions using only deposited...
The Forward Hadron Calorimeter (FHCal) is a modular lead-scintillator compensating calorimeter and consists of two identical parts placed at the left/right sides from beam collision point. FHCal design optimized for measurements energy space distributions projectile nuclei fragments (spectators) in range 1–5 GeV. main task such determination centrality reaction plane orientation heavy-ion collisions. In addition, will be used trigger, especially to select most peripheral collisions with...
Abstract The MPD/NICA heavy-ion experiment is now under construction at JINR, Dubna, Russia. centrality the global characteristic of nuclear interactions and reflects degree nuclei overlapping or number interacting nucleons. One methods to measure determination non-interacting projectile fragments (spectators) which will be detected by hadron calorimeters (FHCal) placed opposite sides beam interaction point. Since bound spectators escape in holes, central peripheral collisions have same...
The experimental setup to study the difference between Compton scattering of entangled and decoherent annihilation photons is discussed. pairs gammas are born in electron-positron at rest. polarization state each photon such a pair not definite represents superposition horizontal vertical polarizations, while relative polarizations orthogonal. After interaction with environment (for example, via scattering) broken becomes determined both gammas. Since depends on initial photon, kinematics...
The Forward Hadron Calorimeter (FHCal) is one of the sub-detectors MPD/NICA experiment that under construction in Dubna, Russia. Its main aim determination geometry heavy ion collisions by measuring energy distribution spectators (nucleons do not participate collision). FHCal consists two 44-module arms, placed symmetrically at left and right sides from interaction point. Every module has a sandwich structure 42 lead-scintillator plates divided 7 equal segments. In order to determine...
Two approaches related to the centrality determination in heavy-ion Multi-Purpose Detector (MPD) experiments, using charge-particles multiplicity Time Projection Chamber (TPC) and energy deposition Forward Hadron Calorimeter (FHCal) are discussed. The main features of FHCal fine transverse segmentation beam holes center calorimeters. Leaking heavy non-interacting fragments (spectators) leads ambiguity dependence on collision centrality. However, calorimeter allows one measure distributions...
The Forward Hadron Calorimeter (FHCal) is one of the sub-detectors MPD/NICA (Nuclotron-based Ion Collider fAcility). FHCal consists two arms, each containing 44 modules. Modules have longitudinal segmentation and are divided into 7 equal sections. Each section contains 6 pairs lead-scintillator plates. FHCal's main goal to determine geometry ion collision by measuring energy distribution spectators. In order in FHCal, modules were calibrated with cosmic muons. Another important facing...