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

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    0534993 - FZÚ 2021 RIV DE eng J - Journal Article
    Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek
    Performance of electron and photon triggers in ATLAS during LHC Run 2.
    European Physical Journal C. Roč. 80, č. 1 (2020), s. 1-41, č. článku 47. ISSN 1434-6044
    R&D Projects: GA MŠk(CZ) LM2018104; GA MŠk(CZ) LTT17018
    Institutional support: RVO:68378271
    Keywords : ATLAS * CERN * LHC * off-line * trigger * efficiency * heavy ion * scattering
    Subject RIV: BF - Elementary Particles and High Energy Physics
    OBOR OECD: Particles and field physics
    Impact factor: 4.389, year: 2019

    Electron and photon triggers covering transverse energies from 5 ext {GeV }GeV to several ext {TeV }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 imes 10^{34},hbox {cm}^{-2}hbox { s}^{-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.

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