2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 9, 213-219
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, $\Xi_{cc}^{++}$, $\Xi_{cc}^{+}$ and $\Omega_{cc}^{+}$. 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.


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