Production of doubly-charmed baryons in B decays

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Abstract

We study the doubly-charmed baryonic B decays B → Ξc Λc and B → Λc+ Λc- K, recently observed by Belle. We find that the unexpected large branching ratios (BRs) could be ascribed to the final state interactions (FSIs), which are dictated by B → D Ds+ → Ξc Λc+ and B → over(D, ̄)0 D0 K → Λc+ Λc- K. By utilizing the same mechanism, we predict that the BRs for B+ → over(Ξ, ̄)c0 Σc+ and B+ → Σc Λc± K+ decays could be as large as BR (B+ → over(Ξ, ̄)c0 Λc+) and 10-4, respectively. In addition, extending the FSIs to the processes associated with the creation of the s over(s, ̄) pair, BR (B+ → over(Ω, ̄)c Ξc+) at percent level is achievable.

Original languageEnglish
Pages (from-to)214-220
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume638
Issue number2-3
DOIs
Publication statusPublished - 2006 Jul 6

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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