Production of doubly charmed baryons in B decays

Abstract

We study the doubly charmed baryonic B decays $B\to {\Xi }_c{\Lambda }_c$ and $B\to {\Lambda }_c^{+}{\Lambda }_c^{-}K$, 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 $B\to D{D}_s^{+}\to {\Xi }_c{\Lambda }_c^{+}$ and $B\to {\bar{D}}^0{D}^{0}K\to {\Lambda }_c^{+}{\Lambda }_c^{-}K$. By utilizing the same mechanism, we predict that the BRs for $B^{+}\to {\bar{\Xi }}_c^0{\Sigma }_c^{+}$ and $B^{+}\to {\Sigma }_c^{\mp }{\Lambda }_c^{\pm }{K}^{+}$ decays could be as large as $BR(B^{+}\to {\bar{\Xi }}_c^0{\Lambda }_c^{+})$ and $10^{-4}$, respectively. In addition, extending the FSIs to the processes associated with the creation of the $s\bar{s}$ pair, $BR(B^{+}\to {\bar{\Omega }}_c{\Xi }_c^{+})$ at percent level is achievable.

14 pages, 6 figures, version accepted for publication

Cited by in corpus (7)

• Direct CP violation in $B^{\pm }\to p\bar{p}{K}^{(\ast )\pm }$
• Exclusive Baryonic B Decays Circa 2005
• Study of two-body doubly charmful baryonic $B$ decays with $SU(3)$ flavor symmetry
• Determination of Nucleon Form factors from Baryonic B Decays
• Higher twist corrections to doubly-charmed baryonic $B$ decays
• Status of baryonic B decays
• Observation of the decays $B^{+}\to {\Sigma }_c(2455{)}^{++}{\overline{\Xi }}_c^{-}$ and $B^0\to {\Sigma }_c(2455{)}^0{\overline{\Xi }}_c^0$