Observation of B0bar->Lambdac+pbar decay
Abstract
We report the measurement of the charmed baryonic decay B0bar->Lambdac+pbar with a branching fraction of (2.19+0.56-0.49+-0.32+-0.57)x10-5 and a statistical significance of 5.8 sigma. The errors are statistical, systematic, and the error of the Lambdac+ ->pK-pi+ decay branching fraction. This is the first observation of a two-body baryonic B decay. The analysis is based on 78.2 fb-1 of data accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider.
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