Description
NICA Days 2019 Plenary Session
The status of construction of the main subsystems of MPD will be described.
The start configuration of the MPD includes superconductive coil which provides homogenous magnetic field up to 0,57T, the main tracker - Time Projection Chamber (TPC) time of Flight system, Fast Forward Detector for zero level trigger and start signal of the TOF and Forward Hadron Calorimeter (FHCal). To decrease the...
The study of the spin effects and polarization phenomena at NICA at high luminosity (up to 10$^{32}$ cm$^{-2}$ s$^{-1}$) a of longitudinally and transversely polarized proton and ,especially, deuteron beam collision requires the development of Spin Physics Detector (SPD) placed at the second interaction point of the collider. SPD consists of the superconducting magnetic system, inner...
The SPD experiment at the NICA collider aims to investigate the nucleon spin structure and polarization phenomena in collisions of longitudinally and transversely polarized protons and deuterons at $\sqrt{s}$ up to 27 GeV and luminosity up to 10$^{32}$ cm$^{-2}$ s$^{-1}$. Production of the Drell-Yan pairs, charmonia, prompt photons and high-p$_T$ hadrons will be the main instrument to access...
We compute the relaxation time for quark/antiquark spin and thermal vorticity alignment in a quark-gluon plasma at finite temperature and quark chemical potential. We model the interaction of quark/antiquark spin with thermal vorticity as driven by a phenomenological modification of the elementary quark interaction with gluons. We find that in a scenario where the angular velocity produced in...
Finding resonances in amplitudes parametrized by us is an old well-known but controversial issue. Despite the apparent simplicity, it can cause many serious problems and surprises. By performing an analysis of the amplitudes fitted to the data, it's easy to find pecularities and come across traps. They are especially important when planning a precise definition of resonance parameters. The...
The multiparticle production in the relativistic collisions of hadrons and nucli is often considered in a two-stage approach. At the first stage, a certain number of quark-gluon strings is produced, and the final particles are produced by strings decay. The formation and fragmentation of strings is implemented in various Monte Carlo generators, such as PYTHIA, HIJING, FRITIOF, AMPT, UrQMD,...
I report on recent progress in the development of the Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD final State interactions (THESEUS) [1] as a tool for investigating signals for the onset of deconfinement and the formation of a hadron-quark matter mixed phase in heavy-ion collisions at NICA energies. I shall cover three main topics:
1. The study of the MPD detector...
One of the key problems of modern relativistic nuclear physics is the study of the phase diagram of strongly interacting matter. These experiments try to answer the question of how the transition of the QGP to the hadron gas occurs. To resolve such ambitious problems of studying hot and dense baryonic matter occurring in the relativistic heavy ion collisions, a new mega set-up is currently...
Multi-Purpose Detector (MPD) experimental setup which is under construction in
JINR and Baryonic Matter at Nuclotron (BM@N) have many common detectors and
servicing equipment. The monitoring and control system which was developed for
the BM@N experiment can serve as a good starting point for developing control
system of MPD experimental hardware. Short overview and results of usage of...
Measurement of reactions of $^{6}\mathrm{He}$ with deuterium target was performed in inverse kinematics at the beam energy of 160 MeV. The measurement was performed at the ACCULINNA-2 fragment separator, Joint Institute for Nuclear Research, Russia using 6He beam delivered by U400M cyclotron. Both energies and angles of the ejectiles were detected in a range from 30 to 80 degrees in the...
