Inclusive decays and lifetimes of doubly charmed baryons

1999/11/04 by B. Guberina, Guberina, B., B. Melic +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9911241

Latex2e, 8 pages, two eps figures, uses ws-p8-50x6-00.cls file; talk given by H. Stefancic at the XVII Autumn School "QCD: Perturbative or Nonperturbative ?", Lisbon, Portugal, 29 Sept - 4 Oct 1999, to appear in the Proceedings

arxiv created 1999/11/04 · arxiv updated 2009/11/30

Abstract

We extend the analysis of weak decays of heavy hadrons to the case of doubly charmed baryons, Ξ_cc⁺⁺, Ξ_cc⁺ and Ω_cc⁺. Doubly charmed baryons are modeled as a heavy-light system containing a heavy cc-diquark and a light quark. Such a model leads to preasymptotic effects in semileptonic and nonleptonic decays which are essentially proportional to the meson wave function. Very clear predictions for semileptonic branching ratios and lifetimes of doubly charmed baryons are obtained.

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