Weak decays of bottom-charm baryons: Bbc → BbP

After the discovery of the double-charm baryon Xi(++)(cc) by LHCb, one of the most important topics is to search for the bottom-charm baryons which contain a b quark, a c quark and a light quark. In this work, we study the two-body non-leptonic weak decays of a bottom-charm baryon into a spin-1/2 bottomed baryon and a light pseudoscalar meson with the short-distance contributions calculated under the factorization hypothesis and the long-distance contributions considering the final-state-interaction effects. The branching fractions of all fifty-seven decay channels are estimated. The results indicate that Xi(+)(bc) -> Xi(0)(b)pi(+), Xi(0)(bc) -> Xi(-)(b) pi(+) and Omega(0)(bc) -> Omega(-)(b) pi(+) decay modes have relatively large decay rates and thus could be used to experimentally search for the bottom-charm baryons. The topological diagrams and the SU(3) symmetry of bottom-charm baryon decays are discussed.

Automated summary

This study investigates the two-body non-leptonic weak decays of bottom-charm baryons, identifying three decay modes with relatively large decay rates which could be used for experimental searches of these particles. Additionally, the topological diagrams and SU(3) symmetry of bottom-charm baryon decays are discussed.