RADIATIVE-CORRECTIONS TO THE SEMILEPTONIC DALITZ PLOT WITH ANGULAR-CORRELATION BETWEEN POLARIZED DECAYING AND EMITTED HYPERONS

We obtain an expression for the Dalitz plot of semileptonic decays of polarized hyperons including radiative corrections to order a and negl ecting terms of the order alpha(q)/pi M-1, where q is the four-momentu m transfer and M-1 is the mass of the decaying hyperon. Our results ar e specialized to exhibit the angular correlation between such polariza tion and the momentum of the emitted hyperon. The model dependence of radiative corrections is kept in a general form within this approximat ion which is suitable for model-independent experimental analysis. Our final result. valid for charged as well as for neutral hyperons, allo ws us to obtain the angular spin-asymmetry coefficient of the emitted hyperon.