期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP01(2014)140
关键词
Jets; Hadronic Colliders
资金
- US Department of Energy, Office of Science Early Career Research Program [DE-SC0003925]
- US Department of Energy, Office of Science Graduate Fellowship
- U.S. Department of Energy (DOE) [DE-SC0003925] Funding Source: U.S. Department of Energy (DOE)
This article presents a proposal for a new search channel for the Higgs boson decaying to two long-lived neutral particles, each of which decays to b (b) over bar at a displaced vertex. The decay length considered is such that the decay takes place within the LHC beampipe. We present a new data-driven analysis using jet substructure and properties of the tracks from the highly-displaced vertices. We consider a model with a 125 GeV Higgs boson with a significant branching fraction to decay via this mode, with the long-lived neutral particle having a mass in the range of 15-40 GeV and a decay length commensurate with the beam pipe radius. Such a signal can be readily observed with an integrated luminosity of 19.5 fb(-1) at 8TeV at the LHC.
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