Search for exotic decays of the Higgs boson into bb[bar] and missing transverse momentum in pp collisions at √s=13 TeV with the ATLAS detector

A search for the exotic decay of the Higgs boson (H) into a bb¯¯ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb−1 of pp collisions at s√ = 13 TeV. The search targets events from ZH production in an NM...

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Hauptverfasser: Aad, Georges (VerfasserIn) , Bartels, Falk (VerfasserIn) , Castillo, Florencia Luciana (VerfasserIn) , Czurylo, Marta (VerfasserIn) , Dittmeier, Sebastian (VerfasserIn) , Dunford, Monica (VerfasserIn) , Franchino, Silvia (VerfasserIn) , Klassen, Martin (VerfasserIn) , Krishnan, Anjali (VerfasserIn) , Mkrtchyan, Tigran (VerfasserIn) , Ott, Philipp (VerfasserIn) , Rassloff, Damir Fabrice (VerfasserIn) , Rodriguez Bosca, Sergi (VerfasserIn) , Sauer, Christof (VerfasserIn) , Schöning, André (VerfasserIn) , Schultz-Coulon, Hans-Christian (VerfasserIn) , Stamen, Rainer (VerfasserIn) , Starovoitov, Pavel (VerfasserIn) , Vigani, Luigi (VerfasserIn) , Weber, Sebastian (VerfasserIn) , Wessels, Martin (VerfasserIn) , Yue, Xiaoguang (VerfasserIn)
Körperschaft: ATLAS Collaboration (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 13 January 2022
In: Journal of high energy physics
Year: 2022, Heft: 1, Pages: 1-38
ISSN:1029-8479
DOI:10.1007/JHEP01(2022)063
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP01(2022)063
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Verfasserangaben:The ATLAS Collaboration*
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Zusammenfassung:A search for the exotic decay of the Higgs boson (H) into a bb¯¯ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb−1 of pp collisions at s√ = 13 TeV. The search targets events from ZH production in an NMSSM scenario where H → χ∼02χ∼01, with χ∼02 → aχ∼01, where a is a light pseudoscalar Higgs boson and χ∼01,2 are the two lightest neutralinos. The decay of the a boson into a pair of b-quarks results in a peak in the dijet invariant mass distribution. The final-state signature consists of two leptons, two or more jets, at least one of which is identified as originating from a b-quark, and missing transverse momentum. Observations are consistent with Standard Model expectations and upper limits are set on the product of cross section times branching ratio for a three-dimensional scan of the masses of the χ∼02, χ∼01 and a boson.
Beschreibung:*The ATLAS Collaboration: G. Aad, F. Bartels, F.L. Castillo, M.M. Czurylo, S.J. Dittmeier, M. Dunford, S. Franchino, M. Klassen, A. Krishnan, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, X. Yue [und sehr viele weitere Personen]
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Beschreibung:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP01(2022)063