Limits on anomalous trilinear gauge boson couplings from WW, WZ and W gamma production in p(p)over-bar collisions at root s=1.96 TeV
Abstract
We present searches for the anomalous gamma WW and ZWW trilinear gauge boson couplings from WW and WZ production using lepton plus dijet final states and a combination with results from W gamma, WW, and WZ production with leptonic final states. The analyzed data correspond to up to 8.6 fb(-1) of integrated luminosity collected by the DO detector in p (p) over bar collisions at root s = 1.96 TeV.
We set the most stringent limits at a hadron collider to date assuming two different relations between the anomalous coupling parameters Delta kappa(gamma), lambda, and Delta g(1)(z) for a cutoff energy scale Lambda = 2 TeV. The combined 68% C.L. limits are -0.057 < Delta kappa(gamma) < 0.154. -0.015 < lambda < 0.028, and -0.008 < Delta g(1)(z) < 0.054 for the LEP parameterization, and -0.007 < Delta kappa < 0.081 and -0.017 < lambda < 0.028 for the equal couplings parameterization.
We also present the most stringent limits of the W boson magnetic dipole and electric quadrupole moments.