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Identification of boosted Higgs bosons decaying into b-quark pairs with the ATLAS detector at 13 TeV

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    0521001 - FZÚ 2020 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 … Total 2930 authors
    Identification of boosted Higgs bosons decaying into b-quark pairs with the ATLAS detector at 13 TeV.
    European Physical Journal C. Roč. 79, č. 10 (2019), s. 1-38, č. článku 836. ISSN 1434-6044. E-ISSN 1434-6052
    Research Infrastructure: CERN-CZ - 90058
    Institutional support: RVO:68378271
    Keywords : ATLAS * CERN LHC Coll * experimental results * 13000 GeV-cms * statistical * benchmark * structure
    OECD category: Particles and field physics
    Impact factor: 4.389, year: 2019
    Method of publishing: Open access

    This paper describes a study of techniques for identifying Higgs bosons at high transverse momenta decaying into bottom-quark pairs, H→bb¯ , for proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy s√=13 TeV . These decays are reconstructed from calorimeter jets found with the anti- kt R=1.0 jet algorithm. To tag Higgs bosons, a combination of requirements is used: b-tagging of R=0.2 track-jets matched to the large-R calorimeter jet, and requirements on the jet mass and other jet substructure variables. The Higgs boson tagging efficiency and corresponding multijet and hadronic top-quark background rejections are evaluated using Monte Carlo simulation. Several benchmark tagging selections are defined for different signal efficiency targets.
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