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Improvements to ATLAS Inner Detector Track reconstruction for LHC Run-3

Authors :
Schillaci Zachary Michael
Source :
EPJ Web of Conferences, Vol 251, p 03048 (2021)
Publication Year :
2021
Publisher :
EDP Sciences, 2021.

Abstract

This document summarises the main changes to the ATLAS experiment’s Inner Detector Track reconstruction software chain in preparation of LHC Run 3 (2022-2024). The work was carried out to ensure that the expected high-activity collisions with on average 50 simultaneous proton-proton interactions per bunch crossing (pile-up) can be reconstructed promptly using the available computing resources. Performance figures in terms of CPU consumption for the key components of the reconstruction algorithm chain and their dependence on the pile-up are shown. For the design pile-up value of 60 the updated track reconstruction is a factor of 2 faster than the previous version.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
2100014X
Volume :
251
Database :
Directory of Open Access Journals
Journal :
EPJ Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.30cd8f63cd6d42bc9505bdce14a7ad5b
Document Type :
article
Full Text :
https://doi.org/10.1051/epjconf/202125103048