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 , +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.
Cite
@article{arxiv.2103.06703,
title = {Implementation of ACTS into sPHENIX track reconstruction},
author = {Joseph D. Osborn and Anthony D. Frawley and Jin Huang and Sookhyun Lee and Hugo Pereira Da Costa and Michael Peters and Chris Pinkenburg and Christof Roland and Haiwang Yu},
journal= {arXiv preprint arXiv:2103.06703},
year = {2021}
}