INCLUSIVE SEMILEPTONIC DECAYS OF POLARIZED LAMBDA(B) BARYONS INTO POLARIZED TAU-LEPTONS

We employ OPE techniques within HQET to calculate the inclusive semile ptonic decays of polarized Lambda(b) baryons. Lepton mass effects are included which enables us to also discuss rates into polarized tau-lep tons. We present explicit results for the longitudinal polarization of the tau in the Lambda(b) rest frame as well as in the ( tau(-),<(nu)o ver bar>(tau)) c.m., frame. In both the;Lambda(b) rest frame and in th e (tau(-),<(nu)over bar>(tau)) c.m. frame ale make use of novel calcul ational techniques which considerably simplify the calculations. The t ransverse polarization components of the tau are calculated in the (ta u(-),<(nu)over bar>(tau)) c.m. frame. We delineate how to measure the full set of 14 polarized and unpolarized structure functions of the de cay process by angular correlation measurements . A set of observables are identified that allow one to isolate the contributions of the two O(1/m(b)(2)) nonperturbative matrix elements K-b and epsilon(b).