Implementation of ACTS into sPHENIX track reconstruction

Abstract

sPHENIX is a high energy nuclear physics experiment under construction at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory (BNL). The primary physics goals of sPHENIX are to study the quark-gluon-plasma, as well as the partonic structure of protons and nuclei, by measuring jets, their substructure, and heavy flavor hadrons in $p$$+$$p$, $p$+Au, and Au+Au collisions. sPHENIX will collect approximately 300 PB of data over three run periods, to be analyzed using available computing resources at BNL; thus, performing track reconstruction in a timely manner is a challenge due to the high occupancy of heavy ion collision events. The sPHENIX experiment has recently implemented the A Common Tracking Software (ACTS) track reconstruction toolkit with the goal of reconstructing tracks with high efficiency and within a computational budget of 5 seconds per minimum bias event. This paper reports the performance status of ACTS as the default track fitting tool within sPHENIX, including discussion of the first implementation of a time projection chamber geometry within ACTS.

References in corpus (2)

• HIJING 1.0: A Monte Carlo Program for Parton and Particle Production in High Energy Hadronic and Nuclear Collisions
• An Upgrade Proposal from the PHENIX Collaboration

Cited by in corpus (7)

• A Common Tracking Software Project
• Scientific Computing Plan for the ECCE Detector at the Electron Ion Collider
• Predictions for the sPHENIX physics program
• Implementation of ACTS for STCF track reconstruction
• A Non-Linear Kalman Filter for track parameters estimation in High Energy Physics
• Simulation study of BESIII with stitched CMOS pixel detector using ACTS
• Track reconstruction for the COMET Phase-II experiment with ACTS