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

ATLAS Collaboration; Paul Newman

doi:10.1140/epjc/s10052-021-09807-0

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

ATLAS Collaboration, Paul Newman

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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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 2.1×10³⁴ cm⁻²s⁻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.

Original language	English
Article number	7
Number of pages	26
Journal	European Physical Journal C
Volume	82
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s10052-021-09807-0
Publication status	Published - 5 Jan 2022

Bibliographical note

36 pages in total, author list starting page 20, 10 figures, 3 tables, published in EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TRIG-2019-02/

Keywords

hep-ex

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10.1140/epjc/s10052-021-09807-0Licence: Creative Commons: Attribution (CC BY)

AadG2022PerformanceFinal published version, 7.18 MBLicence: Creative Commons: Attribution (CC BY)

Cite this

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

Abstract

Bibliographical note

Keywords

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