Inclusive charmed-baryon decays and lifetimes
Branko Guberina, Blazenka Melic
Theoretical Physics Division, Rudjer Boskovic Institute, P.O.B.1016, HR-10001 Zagreb, Croatia (e-mail: firstname.lastname@example.org, email@example.com)
Received: 29 April 1997 / Revised version: 25 June 1997 / Published online: 20 February 1998
We have quantitatively reanalyzed the inclusive charmed-baryon decays. New ingredients are the Voloshin preasymptotic effects in semileptonic 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 semileptonic branching ratio of , in agreement with experiment. The semileptonic branching ratios for and are found to be large, i.e., of the order of . The lifetimes hierarchy is in a good qualitative and even quantitative agreement with experiment except for the lifetime, which is somewhat smaller than the experimental value. Future measurements, especially measurements of the semileptonic branching ratios for , and should be decisive for the check of this approach.