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

0566917 - FZÚ 2023 RIV DE eng J - Článek v odborném periodiku
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 … celkem 2873 autorů
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
Grant CEP: GA MŠk(CZ) LM2018104
Výzkumná infrastruktura: e-INFRA CZ - 90140
Institucionální podpora: RVO:68378271
Klíčová slova: jet: trigger * tau: trigger * FPGA
Obor OECD: Particles and field physics
Impakt faktor: 4.400, rok: 2022
Způsob publikování: 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.
Trvalý link: https://hdl.handle.net/11104/0338185