Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in l+l bb‾ final states

CMS Collaboration

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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 √s = 8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7fb−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.
Original languageEnglish
Pages (from-to)221-243
Number of pages23
JournalPhysics Letters B
Volume748
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • CMS
  • Higgs
  • 2HDM
  • MSSM
  • BSM

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