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A search for WV gamma triple vector boson production is presented based onevents containing a W boson decaying to a muon or an electron and a neutrino, asecond V (W or Z) boson, and a photon. The data correspond to an integratedluminosity of 19.3 inverse femtobarns collected in 2012 with the CMS detectorat the LHC in pp collisions at sqrt(s) = 8 TeV. An upper limit of 311 fb on thefiducial cross section for the WV gamma production process is obtained at 95%confidence level for photons with a transverse energy above 30 GeV and with anabsolute value of pseudorapidity of less than 1.44. This limit is approximatelya factor of 3.4 larger than the standard model predictions that are based onnext-to-leading order QCD calculations. Since no evidence of anomalous WW gammagamma or WWZ gamma quartic gauge boson couplings is found, this paper presentsthe first experimental limits on the dimension-8 parameter f[T,0] and theCP-conserving WWZ gamma parameters kappa[0,W] and kappa[C,W]. Limits are alsoobtained for the WW gamma gamma parameters a[0,W] and a[C,W].

A search for WW gamma and WZ gamma production and constraints on anomalous quartic gauge couplings in pp collisions at sqrt(s) = 8 TeV