Artículos de revistas
Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in l(+)l(-)b(b)over-bar final states
Fecha
2015-09-02Registro en:
Physics Letters B. Amsterdam: Elsevier Science Bv, v. 748, p. 221-243, 2015.
0370-2693
10.1016/j.physletb.2015.07.010
WOS:000359146200036
WOS000359146200036.pdf
Autor
Yerevan Phys Inst
Inst Hochenergiephysik OeAW
Natl Ctr Particle & High Energy Phys
Univ Antwerp
Vrije Univ Brussel
Univ Libre Bruxelles
Univ Ghent
Catholic Univ Louvain
Univ Mons
Ctr Brasileiro Pesquisas Fis
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Estadual Paulista (Unesp)
Universidade Federal do ABC (UFABC)
Bulgarian Acad Sci
Univ Sofia
Inst High Energy Phys
Peking Univ
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Rudjer Boskovic Inst
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Acad Sci Res & Technol,Arab Republ Egypt
NICPB
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Helsinki Inst Phys
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DESY
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Institución
Resumen
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 root s = 8 TeV 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. (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V.