Rare B Decays in Left-Right Symmetric Models

The manifestation of the higher-order effects induced by the flavor-changing neutral currents in B decays is analyzed in the left-right-symmetric generalization of the electroweak unification. In such left-right models the effects of the right-handed currents and the mixing between the two gauge bosons give rise to some enhancement relative to the standard model in the branching ratio of the rare processes b→sγ, b→sg, b→sl+l-, and b→sνantiν , in particular if the present bounds on the WR mass and on the mixing ξ turn out to be too severe. We can conclude that this kind of rare B physics can put interesting constraints on these models.