Search for Vector-Like b' Pair Production with Multilepton Final States in pp collisions at sqrt(s) = 8 TeV

Collaboration
2013
20 pages
Report number:
  • CMS-PAS-B2G-13-003
Experiments:

Citations per year

201420162018202020210246810
Abstract:
A search for pair-production of vector-like partners of the b quark, b^\prime, is carried out in events with at least three leptons using 19.5 fb1^{-1} of integrated luminosity in pp\textrm{pp} collisions at s=8\sqrt{s}=8 TeV collected by the CMS experiment at the LHC. The data are binned in multiple exclusive channels according to the amount of expected standard model background in order to increase the search sensitivity. The observations are consistent with the standard model expectations. The search is interpreted for different b^\prime masses and for varying branching ratios to the bZ\textrm{bZ}, tW\textrm{tW}, and bH\textrm{bH} states. We exclude b^\prime quarks with masses less than values in the range of 520-785 GeV (depending on the values of the branching ratios) at the 95%\% confidence level.
Note:
  • Preliminary results
  • Data
  • p p: scattering
  • channel cross section: branching ratio: upper limit
  • bottom': pair production
  • CERN LHC Coll
  • sensitivity
  • background
  • lepton: multiplicity
  • coupling: vector
  • CMS