The XXIII International Scientific Conference of Young Scientists and Specialists (AYSS-2019)

Session

High energy physics

17 Apr 2019, 14:00

LIT, JINR

Conveners

High energy physics: Section 1

• Alexey Aparin (Joint Institute for Nuclear Research)
• Oleg Samoylov (JINR)

High energy physics: Theory

• Oleg Samoylov (JINR)
• Alexey Aparin (Joint Institute for Nuclear Research)

High energy physics: Section 2 Part 1

• Alexey Aparin (Joint Institute for Nuclear Research)
• Vadim Babkin (Joint Institute for Nuclear Research)

High energy physics: Section 2 Part 2

• Alexey Aparin (Joint Institute for Nuclear Research)
• Vadim Babkin (Joint Institute for Nuclear Research)

313. The Microscopic Black Hole Production at the LHC with CMS experiment

Ms Diana Seitova (LHEP JINR)

17/04/2019, 14:00

High Energy Physics

Oral

The work is devoted to the study of microscopic black hole production with the CMS experiment at LHC. One of the predictions of theoretical models with extra spatial dimensions and low-scale quantum gravity is the possibility of production of microscopic black holes in particle collisions, in particular, at colliders. Based on the simulation with the BlackMax and the Charybdis2 event...

345. Measurment of Angular Coefficients in Drell-Yan process with the CMS experiment at the LHC

Vladislav Shalaev (JINR, Dubna State University)

17/04/2019, 14:15

High Energy Physics

Oral

The main subject of my reserach is the Drell-Yan process, in particular measurement of the polarization angular coefficients of Z boson which sesnsetive to (V –A) structure of weak interactions and can be indicators of effects from higher orders and QCD twists, as well as the nontrivial QCD vacuum structure. Also measurment of this coefficients is important for subsequent precision measurement...

359. Simulation of the long-baseline neutrino experiments with Global Neutrino Analysis package

Ms Anastasia Kalitkina (JINR, DLNP, University Centre, MSU)

17/04/2019, 14:30

High Energy Physics

Oral

Neutrino physics is a major part of modern science. Now in Dzhelepov Laboratory of Nuclear Problems of JINR, we are developing a global neutrino analysis software (GNA). The main goal of this program is to create some universal way to analyze any kind of neutrino experiments. At first, this problem has been being solved only for reactor neutrino experiments such as Day Bay, JUNO. This talk...

390. Monte-Carlo study of the Higgs boson production in association with a single top quark at sqrt(s) = 13TeV at LHC

Oksana Koval (JINR)

17/04/2019, 14:45

High Energy Physics

Oral

А direct search for the production of a Higgs boson in association with single top quark is performed. The analysis considers single top quark production via t channel and uses Higgs boson decays to a bottom quark-antiquark pair and semileptonic top quark decays. Such process is strongly suppressed in the Standard Model. An observation of this production mode would be an unambiguous indication...

395. Analysis of the rare decay K+→mu nu mu mu

Ms Aigul Baeva (JINR,LHEP)

17/04/2019, 15:00

High Energy Physics

Oral

The main goal of the NA62 experiment at CERN is a study of the ultrarare decay К+ → pi nu nu. The collected statistics allows to analyse other rare decays, in particular, К+→ mu nu mu mu. Rare decays make it possible to experimentally investigate one of the aspects of the Standard Model, the chiral perturbative theory (ChPT). ChPT predicts decay probability of К→ mu nu mu mu: 1.35 х 10^(-8)....

385. Performance studies of anisotropic flow with MPD at NICA

Mr Peter Parfenov (MEPhI, Moscow)

17/04/2019, 15:15

High Energy Physics

Oral

The Multi-Purpose Detector (MPD) at NICA collider has a substantial discovery potential concerning the exploration of the QCD phase diagram in the region of high net-baryon densities and moderate temperatures. The anisotropic transverse flow is one of the key observables to study the properties of dense matter created in heavy-ion collisions. The MPD performance for anisotropic flow...

319. A study of the VH associated production process

Mr Faig Ahmadov (JINR)

17/04/2019, 15:30

High Energy Physics

Oral

Analyzed the experimental data of ATLAS obtained in proton-proton collisions in Run-2 LHC at a centre-of-mass energy of 13 TeV for the period 2015-2017, corresponding to an integrated luminosity of 79.8fb^-1. The Run 2 VH, H → bb result is further combined with the results of other Run 2 searches for the Higgs boson produced in the VH production mode, but decaying into either two photons or...

468. Primary processing of hits in cylindrical GEM tracker of the BESIII experiment

Igor Denisenko (JINR)

17/04/2019, 15:45

High Energy Physics

Oral

The inner part of the BESIII drift chamber is expected to be replaced with a cylindrical GEM (CGEM) tracker in summer 2019. Despite providing generally similar performance to the currently installed inner drift chamber, in may improve tracking of the low-momentum charged particles, which is strongly affected by the beam-induced background. Moreover, it can be seen as testing ground for...

372. Cross-checks for the particle-identification algorithm in nue analysis by the means of muon removal procedure at the NOvA experiment

Ms Liudmila Kolupaeva (JINR)

17/04/2019, 16:30

High Energy Physics

Oral

Neural networks become a wide-spread way to identify particles in the high energy experiments and neutrino physics follows this tendency. Primarily goal of the NOvA experiment is neutrino oscillation studies which require good identification for the nue and numu interactions. For this purpose, NOvA developed a convolutional neural network based particle identification algorithm CVN. We check...

474. Cross channel Radon tomography

Mr Ilnur Gabdrakhmanov (JINR VBLHEP)

17/04/2019, 16:45

High Energy Physics

Oral

We review crossed channel Radon tomography of generalized parton distributions (GPD). We present a procedure to derive separate channel contributions to double distributions (DD) via limited angle inverse Radon transform (RT). The LO photon GPDs has been considered as a clear analytical test. Recently the pressure distribution inside proton has been derived where besides negative sign of the...

380. Correlation observables in ΥD pair production at the LHC within the parton Reggeization approach

Mr Anton Karpishkov (Samara National Research University)

17/04/2019, 17:00

High Energy Physics

Oral

We study angular correlations in associated hadroproduction of Υ(1S) with the D± and D0 mesons at the LHC in the Leading Order of the parton Reggeization approach. This approach is based on the kT-factorisation and the gauge-ivariant effective field theory of L. N. Lipatov. Hadronization of a $\overline{b}b$-pair to Υ(1S) is described within the NRQCD-factorization framework. Production of D−mesons...

377. MEASUREMENT OF THE VECTOR AND TENSOR ANALYSING POWERS FOR DP-ELASTIC SCATTERING AT THE ENERGY OF 800 MeV

Mrs Olena Mezhenska (P. J. Šafárik University in Kosice)

17/04/2019, 17:15

High Energy Physics

Oral

The vector Ay and tensor analyzing powers Ayy and Axx for dp-elastic scattering were measured at the energy of 800 MeV and in the angular range from 60° to 140° in the center-of-mass system at the JINR Nuclotron. The experimental data are compared with the calculations obtained within framework of relativistic multiple scattering approach.

461. Decay $B_s\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ in covariant quark model

Dr Aidos Issadykov (Jinr)

17/04/2019, 17:30

High Energy Physics

Oral

TBA

375. Pion production in the 84Kr-Emulsion interactions at around 1GeV/n

Mr N MARI MUTHU (Banaras Hindu University)

17/04/2019, 17:45

High Energy Physics

Oral

Relativistic nucleus-nucleus (A-A) and hadrons - nucleus (h-A) collisions are very useful to understand the particle production mechanism. The present work is devoted to the investigation on emitted charged pions from 84Kr36 - Emulsion interaction at 1 GeV/n. Here we have calculated the total number of wounded nucleons (W) and the total number of interactions (ν) using wounded nucleon model....

322. Prototype of light collection module for LAr TPC (ArgonCube).

Alexey Chetverikov (LNP)

18/04/2019, 14:00

High Energy Physics

Oral

Light collection module (LCM) is intended for registration a vacuum ultraviolet light in a liquid argon time projection chamber. The core of the LCM is a WLS-fiber array, coated by TPB solution, which is fixed on a PVC plate. LCM is being developed and made as a part of a light registration system of ArgonCube in Dzelepov Laboratory of nuclear problems at JINR. ArgonCube is a...

329. The cross section of the inelastic interaction of protons and helium nuclei with the tungsten obtained with the PAMELA space experiment

Ms Olga Golub (NRNU MEPHi)

18/04/2019, 14:15

High Energy Physics

Oral

We present the energy dependence of the cross section for the inelastic interaction of protons and helium nuclei with the tungsten in the energy range from a few hundred MeV to a hundred GeV using the data of the PAMELA space experiment. It was intended for the precision measurements of the cosmic ray fluxes of different nature and include a set of detectors for the reliable determination of...

381. Stand to test preamplifiers of SiPM signals for electromagnetic calorimeter of the MU2E experiment.

Mr Ilya Moroz (JINR, TGU)

18/04/2019, 14:30

High Energy Physics

Oral

In this work a stand to test preamplifiers for electromagnetic calorimeter of the MU2E experiment (Tevatron, Fermilab) is presented. For this stand the control board has been developed, assembled and tested. Methods to test preamplifiers are proposed. A software for stand is being debugged.

386. Studies of the 16- channel scintillation detector prototype with SIPM readout.

Mr Aleksey Tishevskiy (VBLHEP,JINR)

18/04/2019, 14:45

High Energy Physics

Oral

Modern silicon photomultipliers are widely used in detectors of a wide class of experiments CERN, FAIR and NICA/Nuclotron. One example of their application is electromagnetic and hadron calorimeters. In the Laboratory of high energy physics, 16-channel prototypes of detectors (with SIPM readout from Ketek, Sensl and Hamamatsu) were developed which can be used both in Zero Degree calorimetry...

400. Application of the Prony least squares method for fitting signal waveforms measured by sampling ADC

Mr Nikolay Karpushkin (Institute for Nuclear Research of the Russian Academy of Sciences)

18/04/2019, 15:00

High Energy Physics

Oral

At present, new forward hadron lead/scintillator sampling calorimeters are constructed for the Compressed Baryonic Matter (CBM) experiment at the future Facility for Antiproton and Ion Research (FAIR) and the Multi Purpose Detector (MPD) at Nuclotron-based Ion Collider Facility (NICA). These calorimeters will be used for centrality and the reaction plane orientation measurements in heavy-ion...

406. Performance of the ALICE charged-particle veto detector in PbPb and pp collisions at LHC

Mr Evgeny Kondratyuk (IHEP)

18/04/2019, 15:15

High Energy Physics

Oral

The charged-particle veto (CPV) detector of the ALICE experiment is a multi-wire proportional chamber with pad readout. It is designed to improve photon identification in the photon spectrometer PHOS. One module of the CPV detector was put in operation during LHC Run2 in 2015. In this talk we will present the performance of the CPV during PbPb collisions at \sqrt{s}=5.02 TeV and compare these...

428. Multi-channel pulse counter based on the Altera field programmable gate array

Mr Ilya Butorov (JINR)

18/04/2019, 15:30

High Energy Physics

Oral

Currently active work on preparation of JUNO reactor neutrino experiment in China is underway. The primary goal of the experiment is the determination of neutrino mass hierarchy. Alongside with that the precision of some other neutrino mixing parameters can be improved. In order to reach these ambitious goals the detector of the experiment is supposed to have unprecedented resolution on the...

431. Study of the BM@N GEM/CSC tracking system performance

Mr Andrei Galavanov (JINR, MEPhI)

18/04/2019, 15:45

High Energy Physics

Oral

BM@N (Baryonic Matter at the Nuclotron) is the fixed target experiment aimed to study nuclear matter in the relativistic heavy ion collisions at the Nuclotron accelerator in JINR. Detectors based on Gas Electron multipliers (GEM) have been identified as appropriate for the BM@N central tracking system, which is located inside the BM@N analyzing magnet. Cathode Strip Chamber (CSC) is installed...

435. The synchronization modules of calorimeter for display in Event Display MPD

Ms Gaukhar Zhanabergen (JINR)

18/04/2019, 16:30

High Energy Physics

Oral

Studying of the extremal hot and dense matter is the most pressing challenge of modern physics. The particular interest to such environments is connecting with the chance to learn new and until the poorly studied state of matter, so-called quark-gluon plasma. Is supposed by MPD installation to use all the advantages of the accelerator with high NICA luminosity. Installation MPD consists of...

481. Study of noise characteristics of irradiated pixel detectors for the new ALICE Inner Tracking System and the NICA MPD Inner Tracking Detector

Mr Dmitrii Nesterov (St Petersburg State University)

18/04/2019, 16:45

High Energy Physics

Oral

The Inner Tracking System (ITS) plays a key role in the precise determination of secondary vertices in high energy hadron collisions in A Large Ion Collider Experiment (ALICE) at the Large Hadron Collider (LHC). After the upgrade in 2020 the beam luminosity of the LHC will be increased by a factor of ten refers to Pb-Pb collisions. This will provide new opportunities of studies of rare...

343. Nuclear matter effects in the pion-induced Drell-Yan process at COMPASS

Mr Evgenii Mitrofanov (JINR)

18/04/2019, 17:00

High Energy Physics

Oral

Cold nuclear matter effects such as parton energy loss in nuclear matter and nuclear modification of parton distribution functions in the Drell-Yan process in πA and pA collisions have been extensively studied during the last 30 years. Various theoretical models have been proposed to explain these effects, but its full understanding is still lacking. COMPASS studies nuclear effects in...

478. Comparison of hadron shower data in the PAMELA experiment with Geant 4 simulations

Mr Vladislav Alekseev (Yaroslavl State University)

18/04/2019, 17:15

High Energy Physics

Oral

The sampling imaging electromagnetic calorimeter of $\approx 16.3$ radiation lengths and $\approx 0.6$ nuclear interaction length designed and constructed by the PAMELA collaboration as a part of the large magnetic spectrometer PAMELA. Calorimeter consists of 44 single-sided silicon sensor planes interleaved with 22 plates of tungsten absorber (thickness of each tungsten layer $0.26$ cm)....

475. Tests of modules of Forward hadron calorimeter at MPD/NICA.

Mr Alexander Strijak (INR RAS)

18/04/2019, 17:30

High Energy Physics

Oral

At present, in Dubna, Russia a new acceleration complex NICA is being constructed. One of its two detectors and most integral parts of the collider (NICA) is a Multi-Purpose Detector (MPD). MPD experiment is intended for study of properties of dense baryonic matter. One of the most important parts of MPD is Forward Hadron Calorimeter (FHCal), whose purpose is to measure centrality and...

487. First tests of the ECAL detector at HADES experiment

Mr Arseniy Shabanov (INR RAS)

18/04/2019, 17:45

High Energy Physics

Oral

HADES is a large acceptance spectrometer operating at SIS18, GSI, Germany. It is aimed at exploration of QCD phase diagram at the ion beam energies of 1-2 AGeV in the region of high hadron densities. HADES setup includes a superconducting toroidal magnet, sets of drift chambers, ring-imaging Cherenkov detector, TOF systems and a new electromagnetic calorimeter (ECAL). The application of an...

502. Study of RPC detector with different gas mixture compositions using HARDROC front-end ASIC

Mr Aman Phogat (University of Delhi)

18/04/2019, 18:00

High Energy Physics

Oral

The present study includes the integration and commissioning of Resistive Plate Chambers (RPCs) detector with HARDROC front-end electronics. HARDROC is a 64 input channel ASIC that amplifies, shapes and discriminates the negative fast detector signals. This paper reports the performance of glass RPC detector under different R134a/i-C4H10/SF6 gas mixture compositions. The preamplifier gain, DAC...

503. Panda Muon System Prototype

Dr Alexander Verkheev (JINR)

18/04/2019, 18:15

The PANDA Experiment will be one of the key experiments at the Facility for Antiproton and Ion Research (FAIR) which is under construction now in the territory of the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt, Germany. PANDA is aimed to study hadron spectroscopy and various topics of the weak and strong forces. Muon System is chosen as the most suitable technology for detecting...