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Cross-section measurements of the Higgs boson decaying into a pair of τ-leptons in proton-proton collisions at √s=13 TeV with the ATLAS detector

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    SYSNO ASEP0520713
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleCross-section measurements of the Higgs boson decaying into a pair of τ-leptons in proton-proton collisions at √s=13 TeV with the ATLAS detector
    Author(s) Aaboud, M. (MA)
    Aad, G. (FR)
    Abbott, B. (US)
    Chudoba, Jiří (FZU-D) RID, ORCID
    Hejbal, Jiří (FZU-D) RID
    Hladík, Ondřej (FZU-D)
    Jačka, Petr (FZU-D)
    Jakoubek, Tomáš (FZU-D) RID, ORCID
    Kepka, Oldřich (FZU-D) RID
    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 authors2918
    Article number072001
    Source TitlePhysical Review D - ISSN 2470-0010
    Roč. 99, č. 7 (2019), s. 1-39
    Number of pages39 s.
    Languageeng - English
    CountryUS - United States
    KeywordsATLAS ; CERN LHC Coll ; background ; statistical analysis ; data analysis method ; experimental results ; 13000 GeV-cms
    Subject RIVBF - Elementary Particles and High Energy Physics
    OBOR OECDParticles and field physics
    R&D ProjectsLM2015058 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Způsob publikováníOpen access
    Institutional supportFZU-D - RVO:68378271
    UT WOS000464740700002
    EID SCOPUS85065197212
    DOI10.1103/PhysRevD.99.072001
    AnnotationA measurement of production cross sections of the Higgs boson in proton-proton collisions is presented in the H→ττ decay channel. The analysis is performed using 36.1fb−1 of data recorded by the ATLAS experiment at the Large Hadron Collider at a center-of-mass energy of s√=13 TeV. All combinations of leptonic (τ→lνν¯ with l=e, μ) and hadronic (τ→ hadrons ν) τ decays are considered. The H→ττ signal over the expected background from other Standard Model processes is established with an observed (expected) significance of 4.4 (4.1) standard deviations. Combined with results obtained using data taken at 7 and 8 TeV center-of-mass energies, the observed (expected) significance amounts to 6.4 (5.4) standard deviations and constitutes an observation of H→ττ decays. Using the data taken at s√=13 TeV, the total cross section in the H→ττ decay channel is measured to be 3.77+0.60−0.59(stat.)+0.87−0.74(syst.)pb.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2020
    Electronic addresshttp://hdl.handle.net/11104/0305370
Number of the records: 1