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Study of high-transverse-momentum higgs boson production in association with a vector boson in the qqbb final state with the ATLAS Detector

This Letter presents the first study of Higgs boson production in association with a vector boson (𝑉 =𝑊 or 𝑍) in the fully hadronic 𝑞⁢𝑞⁢𝑏⁢𝑏 final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at √𝑠=13 TeV and corresponding to an integrated luminosity of 137 f...

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Hauptverfasser: Aad, Georges (VerfasserIn) , Baltes, Lisa Marie (VerfasserIn) , Bartels, Falk (VerfasserIn) , Dittmeier, Sebastian (VerfasserIn) , Dunford, Monica (VerfasserIn) , Franchino, Silvia (VerfasserIn) , Junkermann, Thomas (VerfasserIn) , Mkrtchyan, Tigran (VerfasserIn) , Rassloff, Damir Fabrice (VerfasserIn) , Sauer, Christof (VerfasserIn) , Schöning, André (VerfasserIn) , Schultz-Coulon, Hans-Christian (VerfasserIn) , Sothilingam, Varsiha (VerfasserIn) , Stamen, Rainer (VerfasserIn) , Starovoitov, Pavel (VerfasserIn) , Vigani, Luigi (VerfasserIn) , Weber, Sebastian (VerfasserIn) , Wessels, Martin (VerfasserIn) , Zinßer, Joachim (VerfasserIn)
Körperschaft: ATLAS Collaboration (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 28 March 2024
In: Physical review letters
Year: 2024, Jahrgang: 132, Heft: 13, Pages: 131802-1-131802-23
ISSN:1079-7114
DOI:10.1103/PhysRevLett.132.131802
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.132.131802
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.132.131802
Volltext
Verfasserangaben:ATLAS Collaboration [und zahlreiche weitere]
Beschreibung
Zusammenfassung:This Letter presents the first study of Higgs boson production in association with a vector boson (𝑉 =𝑊 or 𝑍) in the fully hadronic 𝑞⁢𝑞⁢𝑏⁢𝑏 final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at √𝑠=13 TeV and corresponding to an integrated luminosity of 137 fb−1. The vector bosons and Higgs bosons are each reconstructed as large-radius jets and tagged using jet substructure techniques. Dedicated tagging algorithms exploiting 𝑏-tagging properties are used to identify jets consistent with Higgs bosons decaying into 𝑏⁢¯𝑏. Dominant backgrounds from multijet production are determined directly from the data, and a likelihood fit to the jet mass distribution of Higgs boson candidates is used to extract the number of signal events. The 𝑉⁢𝐻 production cross section is measured inclusively and differentially in several ranges of Higgs boson transverse momentum: 250-450, 450-650, and greater than 650 GeV. The inclusive signal yield relative to the standard model expectation is observed to be 𝜇=1.4+1.0−0.9 and the corresponding cross section is 3.1±1.3⁢(stat)+1.8−1.4⁢(syst) pb.
Beschreibung:Gesehen am 16.12.2024
Beschreibung:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.132.131802

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