Study of the WW{gamma} and WWZ interactions at D0

The {ital WW}{gamma} and {ital WWZ} gauge boson couplings have been studied through the direct observation of diboson final states produced in {ital p}{ital {anti p}} collisions at {radical}s = 1.8 TeV. The total cross section for {ital W}{sub {gamma}} final states, for photons with {ital p}{sub T}{sup {gamma}} {gt} 10 GeV/c and {ital R}{sub {ital l}{gamma}} {gt} 0.7, times branching ratio of {ital W} bosons to leptons, has been measured to be 12.10{sub -1.62}{sup +1. 76}{+-}1.72 pb, in agreement with the Standard Model expectation. An upper limit of 17 pb on the total {ital WW} cross section has been set. The analysis of {ital W}{sub {gamma}} events has allowed us to set 95% confidence level (CL) limits on the anomalous {ital WW}{sub {gamma}} coupling parameters of -0.96 {lt} {Delta}{kappa} {lt} 0.98 and -0.32 {lt} {lambda} {lt} 0.30. this measurement excludes the U(1){sub EM}- only coupling between the photon and the {ital W} boson at the 96% CL. Similar measurements of the coupling parameters have been performed using {ital WW} final states