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 (๐‘‰ =๐‘Š or ๐‘) in the fully hadronic ๐‘žโข๐‘žโข๐‘โข๐‘ final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at โˆš๐‘ =13 TeV and corresponding to an integrated luminosity of 137 f...

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Main Authors: Aad, Georges (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Junkermann, Thomas (Author) , Mkrtchyan, Tigran (Author) , Rassloff, Damir Fabrice (Author) , Sauer, Christof (Author) , Schoฬˆning, Andreฬ (Author) , Schultz-Coulon, Hans-Christian (Author) , Sothilingam, Varsiha (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , ZinรŸer, Joachim (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 28 March 2024
In: Physical review letters
Year: 2024, Volume: 132, Issue: 13, Pages: 131802-1-131802-23
ISSN:1079-7114
DOI:10.1103/PhysRevLett.132.131802
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.132.131802
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.132.131802
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Author Notes:ATLAS Collaboration [und zahlreiche weitere]
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Summary:This Letter presents the first study of Higgs boson production in association with a vector boson (๐‘‰ =๐‘Š or ๐‘) in the fully hadronic ๐‘žโข๐‘žโข๐‘โข๐‘ final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at โˆš๐‘ =13 TeV and corresponding to an integrated luminosity of 137 fbโˆ’1. The vector bosons and Higgs bosons are each reconstructed as large-radius jets and tagged using jet substructure techniques. Dedicated tagging algorithms exploiting ๐‘-tagging properties are used to identify jets consistent with Higgs bosons decaying into ๐‘โขยฏ๐‘. 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 ๐‘‰โข๐ป 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 ๐œ‡=1.4+1.0โˆ’0.9 and the corresponding cross section is 3.1ยฑ1.3โข(stat)+1.8โˆ’1.4โข(syst) pb.
Item Description:Gesehen am 16.12.2024
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.132.131802