INCLUSIVE CHARMED-BARYON DECAYS AND LIFETIMES

We have quantitatively reanalyzed the inclusive charmed-baryon decays. New ingredients are the Voloshin preasymptotic effects in semileptoni c decays and the Cabibbo-subleading contributions to both semileptonic and nonleptonic decays. It has been found that the Cabbibo-subleading Voloshin contribution essentially improves the theoretical semilepton ic branching ratio of Lambda(c)(+), in agreement with experiment. The semileptonic branching ratios for Xi(c)(+) and Omega(c)(0) are found t o be large, i.e., of the order of 20%. The lifetimes hierarchy is in a good qualitative and even quantitative agreement with experiment exce pt for the Xi(c)(+) lifetime, which is somewhat smaller than the exper imental value. Future measurements, especially measurements of the sem ileptonic branching ratios for Omega(c)(0), Xi(c)(+) and Xi(c)(0) shou ld be decisive for the check of this approach.