Search for exclusive Higgs and ℤ boson decays to φγ and ργ with the ATLAS detector
Publisher DOI
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 x 10⁻⁴ and 8.8 x 10⁻⁴, respectively. The corresponding 95% confidence level upper
limits for the Z boson decays are 0.9 x 10⁻⁶ and 25 x 10⁻⁶ for φγ and ργ, respectively.
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 x 10⁻⁴ and 8.8 x 10⁻⁴, respectively. The corresponding 95% confidence level upper
limits for the Z boson decays are 0.9 x 10⁻⁶ and 25 x 10⁻⁶ for φγ and ργ, respectively.
Date Issued
2018-07
Publication Type
Article
Subject(s)
Language(s)
en
Author(s)
Rimoldi, Marco | |
Mullier, Geoffrey | |
Miucci, Antonio | |
Merlassino, Claudia | |
Meloni, Federico | |
Ereditato, Antonio |
Additional Credits
Journal
Journal of High Energy Physics
Publisher
Springer
ISSN
1029-8479
Access(Rights)
open.access