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Search for decays of the Higgs boson into a pair of pseudoscalar particles decaying into bb[bar]τ + τ − collisions at √s=13 TeV with the ATLAS detector

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This paper presents a search for exotic decays of the Higgs boson into a pair of new pseudoscalar particles, , where one pseudoscalar decays into a -quark pair and the other decays into a -lepton pair, in the mass range . The analysis uses collision data at collected with the ATLAS detector at the L...

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Main Authors: Aad, Georges (Author) , Ackermann, Anke (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Junkermann, Thomas (Author) , Mkrtchyan, Tigran (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Sanfilippo, Lorenzo (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: 30 Septembrie 2024
In: Physical review
Year: 2024, Volume: 110, Issue: 5, Pages: 1-34
ISSN:2470-0029
DOI:10.1103/PhysRevD.110.052013
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.110.052013
Verlag, kostenfrei, Volltext: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.110.052013
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Author Notes:G. Aad et al., (ATLAS Collaboration)
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Summary:This paper presents a search for exotic decays of the Higgs boson into a pair of new pseudoscalar particles, , where one pseudoscalar decays into a -quark pair and the other decays into a -lepton pair, in the mass range . The analysis uses collision data at collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of . No significant excess above the Standard Model (SM) prediction is observed. Assuming the SM Higgs boson production cross section, the search sets upper limits at 95% confidence level on the branching ratio of Higgs bosons decaying into , bb̄τ+τ-, β(H → aa → bb̄τ+τ-), between 2.2% and 3.9% depending on the pseudoscalar mass.
Item Description:Im Titel steht der zweite Buchstabe b mit einem Oberstrich
Im Titel sind die Zeichen "+" und "-" hochgestellt
The ATLAS Collaboration: G. Aad, A. Ackermann, L.M. Baltes, F. Bartels, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, L. Sanfilippo, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S. M. Weber, M. Wessels, J. Zinsser [und 2902 weitere]
Gesehen am 07.07.2025
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.110.052013

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