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

M Aaboud, G Aad, B Abbott, O Abdinov, B Abeloos, S. H. Abidi, Torsten Åkesson, Simona Bocchetta, Caterina Doglioni, Vincent Hedberg, Göran Jarlskog, Charles Kalderon, Edgar Kellermann, Balazs Konya, Else Lytken, Katja Mankinen, Ulf Mjörnmark, R. Poettgen, Trine Poulsen, Oxana SmirnovaOleksandr Viazlo, ATLAS Collaboration

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

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).
Originalspråkengelska
TidskriftJournal of High Energy Physics
Volym2018
Nummer7
DOI
StatusPublished - 2018 juli 19

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Export Date: 18 September 2018

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