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

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Title: Performance of the ATLAS Level-1 topological trigger in Run 2.
Authors: Aad, G.1 (AUTHOR), Abbott, B.2 (AUTHOR), Abbott, D. C.3 (AUTHOR), Abud, A. Abed4 (AUTHOR), Abeling, K.5 (AUTHOR), Abhayasinghe, D. K.6 (AUTHOR), Abidi, S. H.7 (AUTHOR), AbouZeid, O. S.8 (AUTHOR), Abraham, N. L.9 (AUTHOR), Abramowicz, H.10 (AUTHOR), Abreu, H.11 (AUTHOR), Abulaiti, Y.12 (AUTHOR), Hoffman, A. C. Abusleme13 (AUTHOR), Acharya, B. S.14,15,16 (AUTHOR), Achkar, B.5 (AUTHOR), Adam, L.17 (AUTHOR), Bourdarios, C. Adam18 (AUTHOR), Adamczyk, L.19 (AUTHOR), Adamek, L.20 (AUTHOR), Adelman, J.21 (AUTHOR)
Source: European Physical Journal C -- Particles & Fields. Jan2022, Vol. 82 Issue 1, p1-26. 26p.
Subjects: Field programmable gate arrays, Array processors, Muons, Higgs bosons
Abstract: 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 × 10 34 cm - 2 s - 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, τ -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. [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Performance of the ATLAS Level-1 topological trigger in Run 2.
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  Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. Jan2022, Vol. 82 Issue 1, p1-26. 26p.
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  Data: 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 × 10 34 cm - 2 s - 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, τ -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. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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