Inclusive decays and lifetimes of doubly-charmed baryons |
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Authors: | B Guberina B Melić H Štefančić |
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Institution: | (1) Theoretical Physics Division, Rudjer Boškovi\' c Institute, P.O. Box 1016, HR-10001 Zagreb, Croatia , HR |
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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.
Received: 21 January 1999 / Published online: 20 May 1999 |
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Keywords: | |
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