Search for Higgs boson decays into a pair of pseudoscalar particles in the bbμμ final state with the ATLAS detector in pp collisions at s =13 TeV

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dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D.C.
dc.contributor.authorAbed Abud, A.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbhayasinghe, D.K.
dc.contributor.authorAbidi, S.H.
dc.contributor.authorAboulhorma, A.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.contributor.authorAbusleme Hoffman, A.C.
dc.contributor.authorAcharya, B.S.
dc.contributor.authorAchkar, B.
dc.contributor.authorAdam, L.
dc.contributor.authorAdam Bourdarios, C.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAdamek, L.
dc.contributor.authorAddepalli, S.V.
dc.contributor.authorAdelman, J.
dc.contributor.authorAdiguzel, A.
dc.contributor.authorAdorni, S.
dc.contributor.authorAdye, T.
dc.contributor.authorAffolder, A.A.
dc.contributor.authorAfik, Y.
dc.contributor.authorAgapopoulou, C.
dc.contributor.authorAgaras, M.N.
dc.contributor.authorAgarwala, J.
dc.contributor.authorAggarwal, A.
dc.contributor.authorAgheorghiesei, C.
dc.contributor.authorAguilar-Saavedra, J.A.
dc.contributor.authorAhmad, A.
dc.contributor.authorAhmadov, F.
dc.contributor.authorAhmed, W.S.
dc.contributor.authorAi, X.
dc.contributor.authorAielli, G.
dc.contributor.authorAizenberg, I.
dc.contributor.authorAkatsuka, S.
dc.contributor.authorAkbiyik, M.
dc.contributor.authorÅkesson, T.P.A.
dc.contributor.authorAkimov, A.V.
dc.contributor.authorAl Khoury, K.
dc.contributor.authorAlberghi, G.L.
dc.contributor.authorAlbert, J.
dc.contributor.authorAlbicocco, P.
dc.contributor.authorAlconada Verzini, M.J.
dc.contributor.authorAlderweireldt, S.
dc.contributor.authorAleksa, M.
dc.contributor.authorAleksandrov, I.N.
dc.contributor.authorAlexa, C.
dc.contributor.authorAlexopoulos, T.
dc.contributor.authorAlfonsi, A.
dc.contributor.authorAlfonsi, F.
dc.contributor.authorAlhroob, M.
dc.contributor.authorAli, B.
dc.contributor.authorAli, S.
dc.contributor.authorAliev, M.
dc.contributor.authorAlimonti, G.
dc.contributor.authorAllaire, C.
dc.contributor.authorAllbrooke, B.M.M.
dc.date.accessioned2024-12-17T13:44:52Z
dc.date.available2024-12-17T13:44:52Z
dc.date.issued2022-01-01
dc.descriptionIndexación: Scopus.
dc.description.abstractThis paper presents a search for decays of the Higgs boson with a mass of 125 GeV into a pair of new pseudoscalar particles, H→aa, where one a-boson decays into a b-quark pair and the other into a muon pair. The search uses 139 fb-1 of proton-proton collision data at a center-of-mass energy of s=13 TeV recorded between 2015 and 2018 by the ATLAS experiment at the LHC. A narrow dimuon resonance is searched for in the invariant mass spectrum between 16 GeV and 62 GeV. The largest excess of events above the Standard Model backgrounds is observed at a dimuon invariant mass of 52 GeV and corresponds to a local (global) significance of 3.3σ (1.7σ). Upper limits at 95% confidence level are placed on the branching ratio of the Higgs boson to the bbμμ final state, B(H→aa→bbμμ), and are in the range 0.2-4.0×10-4, depending on the signal mass hypothesis. © 2022 CERN.
dc.description.urihttps://journals-aps-org.recursosbiblioteca.unab.cl/prd/abstract/10.1103/PhysRevD.105.012006
dc.identifier.citationPhysical Review D, Volume 105, Issue 1, 1 January 2022, Article number 012006
dc.identifier.doi10.1103/PhysRevD.105.012006
dc.identifier.issn2470-0010
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/62599
dc.language.isoen
dc.publisherAmerican Physical Society
dc.rights.licenseAttribution 4.0 International CC BY 4.0 Deed
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectHadron
dc.subjectLepton
dc.subjectStandard Model
dc.titleSearch for Higgs boson decays into a pair of pseudoscalar particles in the bbμμ final state with the ATLAS detector in pp collisions at s =13 TeV
dc.typeArtículo
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