Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in l+l-bbfinal states

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URI: http://hdl.handle.net/10902/13933
ISSN: 0370-2693
ISSN: 1873-2445
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Author
Khachatryan, Vladimir; Brochero Cifuentes, Javier AndrésAutoridad Unican; Cabrillo Bartolomé, José Ibán; Calderón Tazón, AliciaAutoridad Unican; Castiñeiras de Saa, Juan Ramón; Duarte Campderros, Jorge; Fernández García, MarcosAutoridad Unican; Gómez Gramuglio, Gervasio; Graziano, Alberto; López Virto, María Amparo; Marco de Lucas, Jesús; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, FranciscoAutoridad Unican; Muñoz Sánchez, Francisca Javiela; Piedra Gómez, JonatanAutoridad Unican; Rodrigo Anoro, TeresaAutoridad Unican; Rodríguez Marrero, Ana Yaiza; Ruiz Jimeno, AlbertoAutoridad Unican; [et al.]
Date
2015-09
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Attribution 4.0 International © CERN for the benefit of the CMS collaboration
Publicado en
Physics Letters B, Vol. 748, Pp. 221–243, 2015
Publisher
Elsevier
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Abstract:
Results are reported on a search for decays of a pseudoscalar A boson into a Z boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into bb. The search is based on data from proton–proton collisions at a center-of-mass energy vs=8TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 fb-1. The h boson is assumed to be the standard model-like Higgs boson with a mass of 125 GeV. With no evidence for signal, upper limits are obtained on the product of the production cross section and the branching fraction of the A boson in the Zh channel. Results are also interpreted in the context of two Higgs doublet models.
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Attribution 4.0 International © CERN for the benefit of the CMS collaborationExcept where otherwise noted, this item's license is described as Attribution 4.0 International © CERN for the benefit of the CMS collaboration