CONSTRAINTS FROM B-]S-GAMMA ON THE LEFT-RIGHT-SYMMETRICAL MODEL

Recent results from the CLEO Collaboration on both inclusive and exclu sive radiative B decays are used to constrain the parameter space of t wo versions of the left-right symmetric model. In the first scenario, when the left- and right-handed Cabibbo-Kobayashi-Maskawa mixing matri ces are equal, V-L = V-R, the radiative B decay data are shown to lead to strong bounds on the W-L - W-R mixing angle that are quite insensi tive to either the top quark or W-R mass. The second scenario examined is that of Groanu and Wakaizumi wherein b-quark decays proceed only v ia right-handed currents and V-L and V-R are quite distinct. For this model, the combined constraints from Fermilab Tevatron W-R searches, t he B lifetime, and radiative B decays lead to a very highly restricted allowed range for the W-L - W-R mixing angle.