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⁻¹collected 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).

Title

Journal of High Energy Physics

Publisher

Springer Verlag

Publisher Country

Germany

Indexing

Thomson Reuters

Impact Factor

6.063

Publication Type

Prtinted only

Volume

2018

Year

2018

Pages

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