Search for WH production with a light Higgs boson decaying to prompt electron-jets in proton-proton collisions at sqrt(s)=7 TeV with the ATLAS detector

Abstract

A search is performed for WH production with a light Higgs boson decaying to hidden-sector particles resulting in clusters of collimated electrons, known as electron-jets. The search is performed with 2.04 fb-1 of data collected in 2011 with the ATLAS detector at the LHC in proton-proton collisions at sqrt(s)=7 TeV. One event satisfying the signal selection criteria is observed, which is consistent with the expected background rate. Limits on the product of the WH production cross section and the branching ratio of a Higgs boson decaying to prompt electron-jets are calculated as a function of a Higgs boson mass in the range from 100 GeV to 140 GeV.

19 pages plus author list (41 pages total), 3 figures, 6 tables, submitted to New Journal of Physics. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2011-01/

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Cited by in corpus (12)

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• The NMSSM lives: with the 750 GeV diphoton excess
• Exotic Higgs decays in the golden channel
• Supersymmetric Exotic Decays of the 125 GeV Higgs Boson
• Multilepton Higgs Decays through the Dark Portal
• Dark decay of the top quark
• Challenges for a QCD Axion at the 10 MeV Scale
• Higgs physics: Review of recent results and prospects from ATLAS and CMS
• Search for light neutral particles decaying promptly into collimated pairs of electrons or muons in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector