S. Abachi et al., MEASUREMENT OF THE WW-GAMMA GAUGE BOSON COUPLINGS IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV, Physical review letters, 75(6), 1995, pp. 1034-1039
The WW gamma gauge boson couplings were measured using p (p) over bar
--> l nu gamma + X (l = e, mu) events at root s = 1.8 TeV observed wit
h the DO detector at the Fermilab Tevatron Collider. The signal, obtai
ned from the data corresponding to an integrated luminosity of 13.8 pb
(-1), agrees well with the standard model prediction. A fit to the pho
ton transverse energy spectrum yields limits at the 95% confidence lev
el on the CP-conserving anomalous coupling parameters of -1.6 < Delta
kappa < 1.8 (lambda = 0) and -0.6 < lambda < 0.6 (Delta kappa = 0). Si
milar limits are obtained for the CP-violating coupling parameters.