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 (5)

• LHC and Tevatron bounds on the dark matter direct detection cross-section for vector mediators
• Displaced Supersymmetry
• Search in leptonic channels for heavy resonances decaying to long-lived neutral particles
• Long-lived higgsinos as probes of gravitino dark matter at the LHC
• Searches for New Phenomena at the LHC