Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at (Formula Presented.) TeV with the ATLAS detector

The ATLAS Collaboration

Research output: Contribution to journalArticle

58 Citations (Scopus)

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.

Original languageEnglish (US)
Article number172
Pages (from-to)1-44
Number of pages44
JournalJournal of High Energy Physics
Volume2016
Issue number1
DOIs
StatePublished - Jan 1 2016

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Higgs bosons
dark matter
bosons
fusion
collisions
detectors
decay
protons
particle mass
scattering cross sections
center of mass
confidence
cross sections
energy

Keywords

  • Hadron-Hadron scattering
  • Higgs physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at (Formula Presented.) TeV with the ATLAS detector. / The ATLAS Collaboration.

In: Journal of High Energy Physics, Vol. 2016, No. 1, 172, 01.01.2016, p. 1-44.

Research output: Contribution to journalArticle

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