Inclusive decays and lifetimes of doubly charmed baryons

Details Inclusive decays and lifetimes of doubly charmed baryons Inclusive decays and lifetimes of doubly charmed baryons

1999-01-15

arxiv.org/abs/hep-ph/9901323v1

Eur.Phys.J.C9:213-219,1999; Eur.Phys.J.C13:551-551,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages latex file, 4 figures, 1 table

Scientific paper

10.1007/s100529900039

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, similarly as in a heavy-light meson. This leads to preasymptotic effects in semileptonic and nonleptonic decays which 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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