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

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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

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
The European physical journal / C, Particles and fields. - 82, 1 (2022) , 7, ISSN: 1434-6052

Keyword
Experimentalphysik

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2022
Creator
Contributor
Experimentelle Teilchenphysik, Abt. Prof. Karl Jakobs

DOI
10.1140/epjc/s10052-021-09807-0
URN
urn:nbn:de:bsz:25-freidok-2264414
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
25.03.2025, 1:53 PM CET

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Time of origin

  • 2022

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