Search for a Light Charged Higgs Boson in Top Quark Decays in pppp Collisions at s=7\sqrt{s}=7 TeV

Collaboration
May, 2012

Citations per year

2012201520182021202401020304050
Abstract: (arXiv)
Results are presented on a search for a light charged Higgs boson that can be produced in the decay of the top quark to charged H and b quark and which, in turn, decays into tau and tau neutrino. The analysed data correspond to an integrated luminosity of about 2 inverse femtobarns recorded in proton-proton collisions at sqrt(s) = 7 TeV by the CMS experiment at the LHC. The search is sensitive to the decays of the top quark pairs t anti-t to charged Higgs W b anti-b and t anti-t to two charged Higgs b anti-b. Various final states have been studied separately, all requiring presence of a tau lepton from charged Higgs decays, missing transverse energy, and multiple jets. Upper limits on the branching fraction B(t to charged Higgs b) in the range of 2-4% are established for charged Higgs boson masses between 80 and 160 GeV, under the assumption that B(charged Higgs to tau anti-tau neutrino) = 1.
Note:
  • Submitted to the Journal of High Energy Physics
  • p p: interaction
  • top: pair production
  • top: decay
  • Higgs particle: charged particle: search for
  • Higgs particle: leptonic decay
  • tau+: decay modes
  • jet: multiplicity
  • transverse energy: missing-energy
  • top: branching ratio: upper limit
  • CMS