2013/12/06 by G. Aad, ATLAS Collaboration, T. Abajyan +97
Physics and Astronomy · #Boson #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Standard Model (mathematical formulation) #hep-ex
paper · pdf · doi:10.1103/physrevd.89.032002
published as Phys. Rev. D 89 (2014) 032002 · 11 pages plus author list (25 pages total), 6 figures, 4 tables, submitted to PRD, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2013-04/
arxiv created 2013/12/06 · openalex publication_date 2014/02/19 · openalex created_date 2016/06/24 · arxiv updated 2017/12/21 · openalex updated_date 2026/08/06
A search is presented for new particles in an extension to the Standard Model that includes a heavy Higgs boson (H0), an intermediate charged Higgs-boson pair (H^\ifmmode±\else\textpm\fi), and a light Higgs boson (h0). The analysis searches for events involving the production of a single heavy neutral Higgs boson which decays to the charged Higgs boson and a W boson, where the charged Higgs boson subsequently decays into a W boson and the lightest neutral Higgs boson decaying to a bottom--antibottom-quark pair. Such a cascade results in a W-boson pair and a bottom--antibottom-quark pair in the final state. Events with exactly one lepton, missing transverse momentum, and at least four jets are selected from a data sample corresponding to an integrated luminosity of 20.3 fb^\ensuremath-1, collected by the ATLAS detector in proton-proton collisions at √(s)=8 TeV at the LHC. The data are found to be consistent with Standard Model predictions, and 95% confidence-level upper limits are set on the product of cross section and branching ratio. These limits range from 0.065 to 43 pb as a function of H0 and H^\ifmmode±\else\textpm\fi masses, with m_h0 fixed at 125 GeV.