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Performance of electron and photon triggers in ATLAS during LHC Run 2

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dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D. C.
dc.contributor.authorAbud, A. A.
dc.contributor.authorBelotskiy, K.
dc.contributor.authorBelyaev, N. L.
dc.contributor.authorBulekov, O.
dc.contributor.authorKantserov, V. A.
dc.contributor.authorKurova, A.
dc.contributor.authorPonomarenko, D.
dc.contributor.authorProklova, N.
dc.contributor.authorRomaniouk, A.
dc.contributor.authorSmirnov, N.
dc.contributor.authorSmirnov, S. Y.
dc.contributor.authorSmirnov, Y.
dc.contributor.authorSoldatov, E. Y.
dc.contributor.authorTimoshenko, S.
dc.contributor.authorVorobev, K.
dc.contributor.authorTikhomirov, V. O.
dc.contributor.authorБелоцкий, Константин Михайлович
dc.contributor.authorБулеков, Олег Владимирович
dc.contributor.authorКурова, Анастасия Сергеевна
dc.contributor.authorРоманюк, Анатолий Самсонович
dc.contributor.authorСмирнов, Сергей Юрьевич
dc.contributor.authorСмирнов, Юрий Сергеевич
dc.contributor.authorСолдатов, Евгений Юрьевич
dc.contributor.authorТимошенко, Сергей Леонидович
dc.contributor.authorВоробьёв, Константин Александрович
dc.contributor.authorТихомиров, Владимир Олегович
dc.date.accessioned2024-11-25T15:49:37Z
dc.date.available2024-11-25T15:49:37Z
dc.date.issued2020
dc.description.abstract© 2019, The Author(s).Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for the ATLAS experiment to record signals for a wide variety of physics: from Standard Model processes to searches for new phenomena in both proton–proton and heavy-ion collisions. To cope with a fourfold increase of peak LHC luminosity from 2015 to 2018 (Run 2), to 2.1×1034cm-2s-1, and a similar increase in the number of interactions per beam-crossing to about 60, trigger algorithms and selections were optimised to control the rates while retaining a high efficiency for physics analyses. For proton–proton collisions, the single-electron trigger efficiency relative to a single-electron offline selection is at least 75% for an offline electron of 31 GeV, and rises to 96% at 60 GeV; the trigger efficiency of a 25 GeV leg of the primary diphoton trigger relative to a tight offline photon selection is more than 96% for an offline photon of 30 GeV. For heavy-ion collisions, the primary electron and photon trigger efficiencies relative to the corresponding standard offline selections are at least 84% and 95%, respectively, at 5 GeV above the corresponding trigger threshold.
dc.identifier.citationPerformance of electron and photon triggers in ATLAS during LHC Run 2 / Aad, G. [et al.] // European Physical Journal C. - 2020. - 80. - № 1. - 10.1140/epjc/s10052-019-7500-2
dc.identifier.doi10.1140/epjc/s10052-019-7500-2
dc.identifier.urihttps://www.doi.org/10.1140/epjc/s10052-019-7500-2
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dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000519817900001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/20196
dc.relation.ispartofEuropean Physical Journal C
dc.titlePerformance of electron and photon triggers in ATLAS during LHC Run 2
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume80
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