Title: УДК 124
Author: alex
Last saved by: home

Specialization: 010600/52 
Program: Applied Mathematics and Physics
Program director: prof. S.L. Yakovlev
Department of computational physics
Scientific advisor: Ph.D Nemnyugin S.A.
Reviewer: Ph.D Monahov V.V.

Simulation of charge response signal in Time-Projection chamber of Multi-Purpose Detector at NICA
Kashirin Dmitrii

In a part of research hot and dense baryonic matter at the JINR (Joint Institute for Nuclear Research, Dubna), a project to build a new accelerator complex with colliding beams NICA (Nuclotron-based Ion Collider fAcility) [1,2]. The new accelerator complex can provide the interaction of heavy ions in a wide range of atomic masses from light nuclei to gold nuclei at an energy of 3.11 GeV / nucleon in the center of mass.
The Multi-purpose detector (MPD) is developed to observe collision of beams of ions. The MPD time projection chamber (TPC) is the main tracking detector of the central
barrel and, together with the internal tracking system, time of ﬂight system and electromagnetic calorimeter has to provide charged particles momentum measurement with sufficient resolution, particle identiﬁcation and vertex determination, two track separation and dE/dx measurement for hadronic and leptonic observables at pseudorapidities [3].
As part of this work the JINR implementation of charge response signal was tested, refactored and linked to reconstruction part of simulator. Modeling package was analyzed to optimization opportunities of the computational process and applied a method for optimizing by the hash tables of values.
As a result of the changes was the increased efficiency of calculation of modeling the response signal of TPC up to 5 times, made up of quality assurance  tests and organized structure of the program, which allows using of high-performance computing. 

The list of the publications 
	1. D.Kashirin, O.Blinnikov, “ Optimization of high energy physics simulator MPDRoot”, Book of abstracts of the International Student Conference “Science and Progress 2011”. — 2011. — p. 192

Scientific adviser
Ph.D.                                                              Nemnyugin S. A.

Reviewer
Ph. D.                                                               Monahov V. V.