A Vector Finder Toolkit for Track Reconstruction in MPD ITS

Particles

Veronika Vasendina¹  Alexander Zinchenko¹  Eduard Nikonov¹  Dmitry Zinchenko¹ 

[1] Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow Region, Russia;

关键词: heavy-ion collisions;    silicon pixel detector;    track reconstruction;    vertex reconstruction;   

DOI  :  10.3390/particles4020017

来源: DOAJ

【 摘 要 】

As a part of the future upgrade program of the Multi-Purpose Detector (MPD) experiment at the Nuclotron-Based Ion Collider Facility (NICA) complex, an Inner Tracking System (ITS) made of Monolitic Active Pixel Sensors (MAPSs) is proposed between the beam pipe and the Time Projection Chamber (TPC). It is expected that the new detector will enhance the experimental potential for the reconstruction of short-lived particles—in particular, those containing the open charm particle. To study the detector performance and select its best configuration, a track reconstruction approach based on a constrained combinatorial search was developed and implemented as a software toolkit called Vector Finder. This paper describes the proposed approach and demonstrates its characteristics for primary and secondary track finding in ITS, ITS-to-TPC track matching and hyperon reconstruction within the MPD software framework. The results were obtained on a set of simulated central gold–gold collision events at $\sqrt{s_{NN}}=9$ GeV with an average multiplicity of ∼1000 charged particles in the detector acceptance produced with the Ultra-Relativistic Quantum Molecular Dynamics (UrQMD) generator.

【 授权许可】

Unknown