Performance of the ATLAS Level-1 topological trigger in Run 2

0566917 - FZÚ 2023 RIV DE eng J - Journal Article
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2873 authors
Performance of the ATLAS Level-1 topological trigger in Run 2.
European Physical Journal C. Roč. 82, č. 1 (2022), č. článku 7. ISSN 1434-6044. E-ISSN 1434-6052
R&D Projects: GA MŠMT(CZ) LM2018104
Research Infrastructure: e-INFRA CZ - 90140
Institutional support: RVO:68378271
Keywords : jet: trigger * tau: trigger * FPGA
OECD category: Particles and field physics
Impact factor: 4.4, year: 2022
Method of publishing: Open access

During LHC Run 2 (2015–2018) the ATLAS Level-1 topological trigger allowed efficient data-taking by the ATLAS experiment at luminosities up to 2.1××103434 cm−2−2s−1−1, which exceeds the design value by a factor of two. The system was installed in 2016 and operated in 2017 and 2018. It uses Field Programmable Gate Array processors to select interesting events by placing kinematic and angular requirements on electromagnetic clusters, jets, ττ-leptons, muons and the missing transverse energy. It allowed to significantly improve the background event rejection and signal event acceptance, in particular for Higgs and B-physics processes.
Permanent Link: https://hdl.handle.net/11104/0338185