%AOsborn, Joseph%AFrawley, Anthony%AHuang, Jin%ALee, Sookhyun%ACosta, Hugo%APeters, Michael%APinkenburg, Christopher%ARoland, Christof%AYu, Haiwang%BJournal Name: Computing and Software for Big Science; Journal Volume: 5; Journal Issue: 1; Related Information: CHORUS Timestamp: 2021-12-26 06:06:32 %D2021%ISpringer Science + Business Media %JJournal Name: Computing and Software for Big Science; Journal Volume: 5; Journal Issue: 1; Related Information: CHORUS Timestamp: 2021-12-26 06:06:32 %K %MOSTI ID: 10307900 %PMedium: X %TImplementation of ACTS into sPHENIX Track Reconstruction %XAbstract

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$$+$$+$$p$$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 s 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.

%0Journal Article