Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detector

Research output: Contribution to journalArticle

Abstract

A search for the exclusive decays of the Higgs and Z bosons to a ϕ or ρ meson and a photon is performed with a pp collision data sample corresponding to an integrated luminosity of up to 35.6 fb−1 collected at s=13 TeV with the ATLAS detector at the CERN Large Hadron Collider. These decays have been suggested as a probe of the Higgs boson couplings to light quarks. No significant excess of events is observed above the background, as expected from the Standard Model. Upper limits at 95% confidence level were obtained on the branching fractions of the Higgs boson decays to ϕγ and ργ of 4.8 × 10−4 and 8.8 × 10−4, respectively. The corresponding 95% confidence level upper limits for the Z boson decays are 0.9 × 10−6 and 25 × 10−6 for ϕγ and ργ, respectively.[Figure not available: see fulltext.]. © 2018, The Author(s).

Details

Authors
Organisations
External organisations
  • University of Oklahoma
  • University of Toronto
  • Mohamed Premier University
  • Aix-Marseille University
  • Institute of Physics Azerbaijan National Academy of Sciences
  • University of Paris-Sud
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics

Keywords

  • Hadron-Hadron scattering (experiments), Higgs physics
Original languageEnglish
JournalJournal of High Energy Physics
Volume2018
Issue number7
Publication statusPublished - 2018 Jul 19
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

Export Date: 18 September 2018