@article{OPUS4-22071, title = {Search for exclusive Higgs and Z boson decays to phi gamma and rho gamma with the ATLAS detector}, series = {Journal of High Energy Physics}, volume = {127}, journal = {Journal of High Energy Physics}, number = {7}, organization = {The ATLAS collaboration}, doi = {10.1007/JHEP07(2018)127}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-220717}, pages = {1-36}, year = {2018}, abstract = {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.}, language = {en} }