@article{036643895c3b477e95e8c184f21107db,
title = "Software Performance of the ATLAS Track Reconstruction for LHC Run 3",
abstract = "Charged particle reconstruction in the presence of many simultaneous proton–proton (pp) collisions in the LHC is a challenging task for the ATLAS experiment{\textquoteright}s reconstruction software due to the combinatorial complexity. This paper describes the major changes made to adapt the software to reconstruct high-activity collisions with an average of 50 or more simultaneous pp interactions per bunch crossing (pile-up) promptly using the available computing resources. The performance of the key components of the track reconstruction chain and its dependence on pile-up are evaluated, and the improvement achieved compared to the previous software version is quantified. For events with an average of 60pp collisions per bunch crossing, the updated track reconstruction is twice as fast as the previous version, without significant reduction in reconstruction efficiency and while reducing the rate of combinatorial fake tracks by more than a factor two.",
author = "G. Aad and B. Abbott and K. Abeling and Abicht, {N. J.} and Abidi, {S. H.} and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, {B. S.} and Bourdarios, {C. Adam} and L. Adamczyk and L. Adamek and Addepalli, {S. V.} and Addison, {M. J.} and J. Adelman and A. Adiguzel and T. Adye and Affolder, {A. A.} and Y. Afik and Agaras, {M. N.} and J. Agarwala and A. Aggarwal and C. Agheorghiesei and A. Ahmad and F. Ahmadov and Ahmed, {W. S.} and S. Ahuja and X. Ai and G. Aielli and A. Aikot and Tamlihat, {M. Ait} and L. Barak and G. Bella and Y. Benhammou and Biswal, {J. P.} and B. Chen and H. Cohen and E. Etzion and Frid, {Y. Y.} and G. Koren and O. Kuprash and Lutz, {M. S.} and R. Nayak and G. Ninio and Dominguez, {L. Pascual} and D. Reikher and A. Soffer and Tamir, {N. M.} and D. Vannicola and B. Aitbenchikh and I. Aizenberg and M. Akbiyik and {\AA}kesson, {T. P.A.} and Akimov, {A. V.} and D. Akiyama and Akolkar, {N. N.} and Khoury, {K. Al} and Alberghi, {G. L.} and J. Albert and P. Albicocco and Albouy, {G. L.} and S. Istin and E. Kajomovitz and L. Moleri and Seabra, {L. F.Oleiro} and Y. Rozen and S. Tarem",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",
year = "2024",
month = dec,
doi = "https://doi.org/10.1007/s41781-023-00111-y",
language = "الإنجليزيّة",
volume = "8",
journal = "Computing and Software for Big Science",
issn = "2510-2036",
publisher = "Springer Nature",
number = "1",
}