Implementation of ACTS into sPHENIX Track Reconstruction

Mar 11, 2021
7 pages
Published in:
  • Comput.Softw.Big Sci. 5 (2021) 1, 23
Contribution to:
  • Published: Oct 12, 2021
e-Print:
Experiments:

Citations per year

2021202220232024245
Abstract: (Springer)
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+pp+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.
  • Track reconstruction
  • Software
  • Collider physics
  • Event reconstruction
  • heavy ion: scattering
  • track data analysis
  • programming
  • performance
  • efficiency
  • PHENIX