Study of the charmed baryonic decaysB¯0→Σc++p¯π−andB¯0→Σc0p¯π+

We study the three-body charmed baryonic decays B0→Σ c++pπ- and B0→Σc0pπ+ in the four-body final state B0→Λc+pπ+π-, using a data sample of 357fb-1 accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure the branching fractions B(B0→Σc(2455)++pπ-)=(2.1±0.2±0. 3±0.5)×10-4, B(B0→Σc(2455)0pπ+)=(1. 4±0.2±0.2±0.4)×10-4 and B(B0→Σ c(2520)++pπ-)=(1.2±0.1±0.2±0.3)×10-4 with signal significances of 13.1σ, 9.4σ and 7.1σ, respectively. The errors are statistical, systematic, and due to the uncertainty in B(Λc+→pK-π+), respectively. We also set an upper limit B(B0→Σc(2520)0pπ+)