Abstract
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 sNN=9 GeV with an average multiplicity of ∼1000 charged particles in the detector acceptance produced with the Ultra-Relativistic Quantum Molecular Dynamics (UrQMD) generator.
Highlights
IntroductionNew experiments will be performed to collect measurements of the bulk properties of the nuclear matter and study different probes with relatively high production rates
The Nuclotron-Based Ion Collider Facility (NICA) and the Multi-Purpose Detector (MPD) at the NICA collider, which are currently under construction at the Joint Institute for Nuclear Research (JINR) in Russia [1,2], are expected to strengthen the experimental investigation of the high-density baryonic matter produced in heavy-ion collisions
This paper describes the proposed approach and demonstrates its characteristics for primary and secondary track finding in Inner Tracking System (ITS), ITS-to-Time Projection Chamber (TPC) track matching and hyperon reconstruction within the MPD software framework
Summary
New experiments will be performed to collect measurements of the bulk properties of the nuclear matter and study different probes with relatively high production rates. These are planned during the upgrade of the detector to enhance its capabilities to study rear probes such as multi-strange (anti)hyperons and charmed particles. Based on the next-generation silicon pixel detectors known as Monolitic Active Pixel Sensors (MAPSs) [6] between the beam pipe and the Time Projection Chamber (TPC) Such a detector will increase the research potential of the experiment in terms of both the high-luminosity proton–proton and high-multiplicity nucleus–nucleus interactions. The approach is described below, and some results of its application to track and hyperon decay reconstruction in the MPD ITS are presented
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
