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Determination of the relative sign of the Higgs boson couplings to W and Z bosons Using WH production via vector-boson fusion with the ATLAS detector

The associated production of Higgs and 𝑊 bosons via vector-boson fusion is highly sensitive to the relative sign of the Higgs boson couplings to 𝑊 and 𝑍 bosons. In this Letter, two searches for this process are presented, using 140 fb−1 of proton-proton collision data at √𝑠=13 TeV recorded by the AT...

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Main Authors: Aad, Georges (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Czurylo, Marta (Author) , Rio, Fernando del (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Junkermann, Thomas (Author) , Klassen, Martin (Author) , Mkrtchyan, Tigran (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Rodriguez Bosca, Sergi (Author) , Sauer, Christof (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sothilingam, Varsiha (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Zinßer, Joachim (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 2 October 2024
In: Physical review letters
Year: 2024, Volume: 133, Issue: 14, Pages: 1-22
ISSN:1079-7114
DOI:10.1103/PhysRevLett.133.141801
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.133.141801
Verlag, lizenzpflichtig, Volltext: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.133.141801
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Author Notes:G. Aad et al., (ATLAS Collaboration)
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Summary:The associated production of Higgs and 𝑊 bosons via vector-boson fusion is highly sensitive to the relative sign of the Higgs boson couplings to 𝑊 and 𝑍 bosons. In this Letter, two searches for this process are presented, using 140 fb−1 of proton-proton collision data at √𝑠=13 TeV recorded by the ATLAS detector at the LHC. The first search targets scenarios with opposite-sign couplings of the 𝑊 and 𝑍 bosons to the Higgs boson, while the second targets standard model-like scenarios with same-sign couplings. Both analyses consider Higgs boson decays into a pair of 𝑏 quarks and 𝑊 boson decays with an electron or muon. The data exclude the opposite-sign coupling hypothesis with a significance beyond 5⁢𝜎, and the observed (expected) upper limit set on the cross section for vector-boson fusion 𝑊⁢𝐻 production is 9.0 (8.7) times the standard model value at 95% confidence level.
Item Description:ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, M.M. Czurylo, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, J. Zinsser [und 2915 weitere]
Gesehen am 07.07.2025
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.133.141801

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