The e gamma->W nu(e) process using axial gauge

The Standard Model prescribes a definite Lagrangian for the coupling of the W-boson to the photon. Measuring the coupling constant will test an important ingredient of the Model i.e., the verification of non-Abelian gauge structure of the Standard Model. Using the process e gamma --> W nu we study the most general C and P conserving vertex in e(+)e(-) collisions at a future 500 GeV collider. This vertex contains two parameters, the anomalous magnetic moment kappa and the quadrupole moment lambda. For the process e gamma --> W nu we present analytical expressions for the differential cross-section for arbitrary values of kappa and lambda which explicitly demonstrate the presence of a zero at u = 0 in the Standard Model.