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Scientific article
Open access
English

Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at √s = 8 TeV with the ATLAS detector

ContributorsATLAS Collaboration
Published inThe journal of high energy physics, vol. 1601, p. 172-216
Collection
  • Open Access - SCOAP3
Publication date2016
Abstract

A search for a Higgs boson produced via vector-boson fusion and decaying into invisible particles is presented, using 20.3 fb −1 of proton-proton collision data at a centre-of-mass energy of 8 TeV recorded by the ATLAS detector at the LHC. For a Higgs boson with a mass of 125 GeV, assuming the Standard Model production cross section, an upper bound of 0.28 is set on the branching fraction of H → invisible at 95% confidence level, where the expected upper limit is 0.31. The results are interpreted in models of Higgs-portal dark matter where the branching fraction limit is converted into upper bounds on the dark-matter-nucleon scattering cross section as a function of the dark-matter particle mass, and compared to results from the direct dark-matter detection experiments.

Keywords
  • Hadron-Hadron scattering
  • Higgs physics
Citation (ISO format)
ATLAS Collaboration. Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at √s = 8 TeV with the ATLAS detector. In: The journal of high energy physics, 2016, vol. 1601, p. 172–216. doi: 10.1007/JHEP01(2016)172
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Article (Published version)
Identifiers
ISSN of the journal1029-8479
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