Discovering higgs boson decays to lepton jets at hadron colliders

Adam Falkowski, Joshua T. Ruderman, Tomer Volansky, Jure Zupan

    Research output: Contribution to journalArticle

    Abstract

    The Higgs boson may decay predominantly into a hidden sector, producing lepton jets instead of the standard Higgs signatures. We propose a search strategy for such a signal at hadron colliders. A promising channel is the associated production of the Higgs boson with a Z or W. The dominant background is Z or W plus QCD jets. The lepton jets can be discriminated from QCD jets by cutting on the electromagnetic fraction and charge ratio. The former is the fraction of jet energy deposited in the electromagnetic calorimeter and the latter is the ratio of energy carried by charged particles to the electromagnetic energy. We use a Monte Carlo description of detector response to estimate QCD rejection efficiencies of O(10⊃-3) per jet. The expected 5σ (3σ) discovery reach in Higgs boson mass is ∼115GeV (150 GeV) at the Tevatron with 10fb⊃-1 of data and ∼110GeV (130 GeV) at the 7 TeV LHC with 1fb⊃-1.

    Original languageEnglish (US)
    Article number241801
    JournalPhysical Review Letters
    Volume105
    Issue number24
    DOIs
    StatePublished - Dec 9 2010

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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