Searching for doubly charmed baryon from ${\overline{B}}_c$ meson decays

Abstract

In this paper, we study the production of doubly charmed baryon from anti-bottom charmed meson. Using the effective Lagrangian approach, we discuss triangle diagrams in hadronic level to get access to the branching ratios of ${\overline{B}}_c\to {\mathcal{B}}_{ccq}+{\mathcal{B}}_{\bar{c}\bar{q}\bar{q}}$. It seems that the specific process ${\overline{B}}_c\to {\Xi }_{cc}^{++}{\overline{\Xi }}_{\bar{c}}^{{}^{\prime }-}$ occupies the largest possibility in the order of $6.68\times 10^{-6}$. In addition, although the production of undiscovered ${\Omega }_{cc}^{+}$ is Cabibbo suppressed in ${\overline{B}}_c\to {\Omega }_{cc}^{+}{\overline{\Xi }}_{\bar{c}}^0$, it's branching ratio can still reach $10^{-7}$ level. These results are excepted to be fairly valuable supports for future experiments.

Comments: 13 pages, 3 figures