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Combination of searches for Higgs boson pairs in pp collisions at √s = 13 TeV with the ATLAS detector

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    SYSNO ASEP0537318
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleCombination of searches for Higgs boson pairs in pp collisions at √s = 13 TeV with the ATLAS detector
    Author(s) Aad, G. (FR)
    Abbott, B. (US)
    Abbott, D.C. (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 authors2911
    Article number135103
    Source TitlePhysics Letters. B. - : Elsevier - ISSN 0370-2693
    Roč. 800, Jan (2020), s. 1-23
    Number of pages23 s.
    Languageeng - English
    CountryNL - Netherlands
    KeywordsATLAS ; CERN ; LHC ; S046OTH ; Higgs particle ; pair production
    Subject RIVBF - Elementary Particles and High Energy Physics
    OECD categoryParticles and field physics
    R&D ProjectsLTT17018 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Research InfrastructureCERN-CZ II - 90104 - Fyzikální ústav AV ČR, v. v. i.
    Method of publishingOpen access
    Institutional supportFZU-D - RVO:68378271
    UT WOS000503832500009
    EID SCOPUS85075879322
    AnnotationThis letter presents a combination of searches for Higgs boson pair production using up to 36.1 fb−1^{-1}−1 of proton-proton collision data at a centre-of-mass energy s=13sqrt{s} = 13s ​=13 TeV recorded with the ATLAS detector at the LHC. The combination is performed using six analyses searching for Higgs boson pairs decaying into the bbbb, bbWW, bbττ au auττ, WWWW, bbγγgamma gammaγγ and WWγγgammagammaγγ final states. Results are presented for non-resonant and resonant Higgs boson pair production modes. The combined observed limit at 95% confidence level on the non-resonant Higgs boson pair production cross-section is 6.9 times the predicted Standard Model cross-section. Limits are also set on the ratio (κλkappa_{lambda}κλ​) of the Higgs boson self-coupling to its Standard Model value. This ratio is constrained at 95% confidence level to −5.0<κλ<12.0-5.0 < kappa_{lambda} <12.0−5.0<κλ​<12.0.
    WorkplaceInstitute of Physics
    ContactKristina Potocká,, Tel.: 220 318 579
    Year of Publishing2021
    Electronic address
Number of the records: 1