Evidence for B¯s0→Λc+Λ¯π−

Using 121.4fb−1 of data collected with the Belle detector at the ϒ(5S) resonance at the KEKB asymmetric-energy e+e− collider, we report evidence for the B¯s0→Λc+Λ¯π− decay mode with a measured branching fraction (3.6±1.1[stat.]−0.5+0.3[syst.]±0.9[Λc+]±0.7[NB¯s0])×10−4 and a significance of 4.4 standard deviations. This is the first evidence for a baryonic Bs0 decay.