2012/05/31 by S. Chatrchyan, CMS Collaboration, V. Khachatryan +98 · 186 citations
Physics and Astronomy · #Astrophysics #Boson #Bottom quark #Branching fraction #Electron #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Lepton #Luminosity #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Standard Model (mathematical formulation) #Top quark #hep-ex
paper · pdf · doi:10.1007/jhep07(2012)143
published in Journal of High Energy Physics 2012(7) (Springer Nature) · Submitted to the Journal of High Energy Physics
openalex publication_date 2012/07/01 · arxiv created 2013/01/25 · arxiv updated 2015/03/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
A bstract Results are presented on a search for a light charged Higgs boson that can be produced in the decay of the top quark t → H + b and which, in turn, decays into τ + ν τ . The analysed data correspond to an integrated luminosity of about 2 fb −1 recorded in protonproton collisions at √ s = 7 TeV by the CMS experiment at the LHC. The search is sensitive to the decays of the top quark pairs t t → H ± W ∓ b b and t t → H ± H ∓ b b . Various final states have been studied separately, all requiring presence of a τ lepton from H + decays, missing transverse energy, and multiple jets. Upper limits on the branching fraction B (t → H + b) in the range of 2-4 % are established for charged Higgs boson masses between 80 and 160 GeV, under the assumption that B (H + → τ + ν τ ) = 1.