R. Floresmendieta et al., RADIATIVE-CORRECTIONS TO THE SEMILEPTONIC DALITZ PLOT WITH ANGULAR-CORRELATION BETWEEN POLARIZED DECAYING AND EMITTED HYPERONS, Physical review. D. Particles and fields, 55(9), 1997, pp. 5702-5718
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.