Numerical calculation of radiative corrections to the energy spectrum of semileptonic decays of light- and charm-quark charged baryons

In this paper we calculate, for the energy spectrum of several semileptonic decays of interest, the numerical values of the radiative correction coefficients of an analytic expression previously obtained. The results can be readily used in a Monte Carlo simulation in an experimental analysis of those decays. We estimate the theoretical uncertainty involved in the analytic expression and show that it remains small even in high-q decays. Therefore, that expression is valid for charm-baryon semileptonic decays, to a high degree of precision.