DOI 10.1007/s100529900039
Inclusive decays and lifetimes of doubly-charmed baryons
B. Guberina - B. Melic - H. Stefancic
Theoretical Physics Division, Rudjer Boskovic Institute, P.O. Box 1016, HR-10001 Zagreb, Croatia
Received: 21 January 1999 / Published online: 20 May 1999
Abstract
The analysis of singly-charmed hadrons has been extended to
the case of doubly-charmed baryons, 
, 
and 
. Doubly-charmed baryons are
described as a system containing a heavy cc diquark
and a light quark, as in the case of a heavy-light meson. This leads
to preasymptotic effects in semileptonic and nonleptonic
decays that are essentially proportional to the meson wave
function. Interplay between preasymptotic effects in
semileptonic and/or nonleptonic decay rates leads to very
clear predictions for semileptonic branching ratios and lifetimes
of doubly-charmed baryons.
Copyright Springer-Verlag
