Search for a light Higgs boson decaying to long-lived weakly-interacting particles in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

Abstract

A search for the decay of a light Higgs (120 - 140 GeV) to a pair of weakly-interacting, long-lived particles in 1.94 fb^-1 of proton-proton collisions at sqrt{s} = 7 TeV recorded in 2011 by the ATLAS detector is presented. The search strategy requires that both long-lived particles decay inside the muon spectrometer. No excess of events is observed above the expected background and limits on the Higgs boson production times branching ratio to weakly-interacting, long-lived particles are derived as a function of the particle proper decay length.

5 pages plus author list (17 pages total), 3 figures, 2 tables, revised author list, matches published version in Physical Review Letters

References in corpus (4)

• PYTHIA 6.4 Physics and Manual
• Echoes of a Hidden Valley at Hadron Colliders
• Discovering the Higgs Through Highly-Displaced Vertices
• Nonstandard Higgs Boson Decays

Cited by in corpus (17)

• Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at sqrt(s) = 8 TeV
• LHC and Tevatron bounds on the dark matter direct detection cross-section for vector mediators
• Multilepton and Lepton Jet Probes of Sub-Weak-Scale Right-Handed Neutrinos
• Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at sqrt(s) = 8 TeV
• Displaced Supersymmetry
• Probing Baryogenesis with Displaced Vertices at the LHC
• Search for pair-produced long-lived neutral particles decaying in the ATLAS hadronic calorimeter in $pp$ collisions at $\sqrt{s}$ = 8 TeV
• The Fate of Long-Lived Superparticles with Hadronic Decays after LHC Run 1
• Search in leptonic channels for heavy resonances decaying to long-lived neutral particles
• Search for Long-Lived Particles in $e^{+}{e}^{-}$ Collisions
• Search for long-lived particles decaying to jet pairs
• Exotic Higgs decays in the golden channel
• Long-lived higgsinos as probes of gravitino dark matter at the LHC
• Implications of an axino LSP for naturalness
• Displaced Vertices from X-ray Lines
• Supersymmetric Higgs-portal and X-ray lines
• Searches for New Phenomena at the LHC