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
Entity
UAM. Departamento de Física TeóricaPublisher
American Physical SocietyDate
2022-01-11Citation
10.1103/PhysRevD.105.012006
Physical Review D 105.1 (2022): 012006
ISSN
2470-0010 (print); 2470-0029 (online)DOI
10.1103/PhysRevD.105.012006Editor's Version
https://doi.org/10.1103/PhysRevD.105.012006Subjects
Boson; Partons; Higgs Bosons; FísicaNote
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMRights
© 2022 CERN, for the ATLAS CollaborationAbstract
This 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
Files in this item
Google Scholar:Aad, G.
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ATLAS Collaboration
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Álvarez Estévez, Manuel
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Barreiro Alonso, Fernando
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Calvente López, Sergio
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Camarero Muñoz, Daniel
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Peso Malagón, José del
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Glasman Kuguel, Claudia Beatriz
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Príncipe Martín, Miguel Ángel
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Terrón Cuadrado, Juan
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