Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detectorVise andre og tillknytning
Rekke forfattare: 28832018 (engelsk)Inngår i: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, nr 7, artikkel-id 127Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
A search for the exclusive decays of the Higgs and Z bosons to a phi or rho 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 root 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 phi gamma and rho gamma 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 phi gamma and rho gamma, respectively.
sted, utgiver, år, opplag, sider
2018. nr 7, artikkel-id 127
Emneord [en]
Hadron-Hadron scattering (experiments), Higgs physics
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-362006DOI: 10.1007/JHEP07(2018)127ISI: 000439527200001OAI: oai:DiVA.org:uu-362006DiVA, id: diva2:1253100
Forskningsfinansiär
Swedish Research CouncilEU, European Research CouncilEU, FP7, Seventh Framework ProgrammeEU, Horizon 2020
Merknad
For complete list of authors see http://dx.doi.org/10.1007/JHEP07(2018)127. Title in WoS: Search for exclusive Higgs and Z boson decays to phi gamma and rho gamma with the ATLAS detector
2018-10-032018-10-032018-10-03bibliografisk kontrollert