STATIC QUANTITIES OF THE W BOSON IN THE MSSM

We systematically analyze the anomalous dipole DELTAk(gamma) and quadr upole DELTAQ(gamma) moments of the W gauge bosons in the context of th e minimal supersymmetric standard model as functions of the soft SUSY breaking parameters A0, m0, M1/2 and the top quark mass. The severe co nstraints imposed by the radiative breaking mechanism of the electrowe ak symmetry SU(2) X U(1) are duly taken into account. The supersymmetr ic values of DELTAk(gamma) and DELTAQ(gamma) can be largely different, in some cases, from the standard model predictions but of the same or der of magnitude for values of A0, m0, M1/2 less-than-or-equal-to O(1 TeV). Therefore possible supersymmetric structure can be probed provid ed the accuracy of measurements for DELTAk(gamma), DELTAQ(gamma) reach es 10(-2)-10(-3) and hence hard to be detected at LEP2. If deviations from the standard model predictions are observed at LEP2, most likely these are not due to an underlying supersymmetric structure. In cases where M1/2 much less than A0, m0, the charginos and neutralinos may gi ve substantial contributions saturating the LEP2 sensitivity limits. T his occurs when their masses m(C), m(Z) turn out to be both light sati sfying m(C) + m(Z) congruent-to M(W). However these extreme cases are perturbatively untrustworthy and besides unnatural for they occupy a s mall region in the parameter space,