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Measurements of inclusive and differential fiducial cross-sections of tt¯ γ production in leptonic final states at √s=13TeV in ATLAS

  1. 1.
    SYSNO ASEP0521107
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleMeasurements of inclusive and differential fiducial cross-sections of tt¯ γ production in leptonic final states at √s=13TeV in ATLAS
    Author(s) Aaboud, M. (MA)
    Aad, G. (FR)
    Abbott, B. (US)
    Chudoba, Jiří (FZU-D) RID, ORCID
    Hejbal, Jiří (FZU-D) RID, ORCID
    Hladík, Ondřej (FZU-D) ORCID
    Jačka, Petr (FZU-D) ORCID
    Jakoubek, Tomáš (FZU-D) RID, ORCID
    Kepka, Oldřich (FZU-D) RID, ORCID
    Kroll, Jiří (FZU-D) ORCID
    Kupčo, Alexander (FZU-D) RID, ORCID
    Lokajíček, Miloš (FZU-D) RID, ORCID
    Lysák, Roman (FZU-D) RID, ORCID
    Marčišovský, Michal (FZU-D) RID, ORCID
    Mikeštíková, Marcela (FZU-D) RID, ORCID
    Němeček, Stanislav (FZU-D) RID, ORCID
    Penc, Ondřej (FZU-D) ORCID
    Šícho, Petr (FZU-D) RID, ORCID
    Staroba, Pavel (FZU-D) RID, ORCID
    Svatoš, Michal (FZU-D) RID, ORCID
    Taševský, Marek (FZU-D) RID, ORCID
    Number of authors2926
    Article number382
    Source TitleEuropean Physical Journal C. - : Springer - ISSN 1434-6044
    Roč. 79, č. 5 (2019), s. 1-41
    Number of pages41 s.
    Languageeng - English
    CountryDE - Germany
    KeywordsATLAS ; CERN LHC Coll ; experimental results ; neural network ; statistical analysis ; one-photon ; background ; data analysis method ; 13000 GeV-cms
    Subject RIVBF - Elementary Particles and High Energy Physics
    OECD categoryParticles and field physics
    Research InfrastructureCERN-CZ - 90058 - Fyzikální ústav AV ČR, v. v. i.
    Method of publishingOpen access
    Institutional supportFZU-D - RVO:68378271
    UT WOS000466965600004
    EID SCOPUS85065246725
    DOI10.1140/epjc/s10052-019-6849-6
    AnnotationInclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 36.1 fb −1
    collected by the ATLAS detector at the LHC in 2015 and 2016 at a centre-of-mass energy of 13 TeV . The measurements are performed in single-lepton and dilepton final states in a fiducial volume. Events with exactly one photon, one or two leptons, a channel-dependent minimum number of jets, and at least one b-jet are selected. Neural network algorithms are used to separate the signal from the backgrounds. The fiducial cross-sections are measured to be 521±9(stat.)±41(sys.) fb and 69±3(stat.)±4(sys.) fb for the single-lepton and dilepton channels, respectively.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2020
    Electronic addresshttp://hdl.handle.net/11104/0305769
Number of the records: 1  

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