Factorization and angular distribution asymmetries in charmful baryonic B decays

Abstract

We examine the validity of the generalized factorization method and calculate the angular correlations in the charmful three-body baryonic decays of B¯0→Λp¯D(∗)+. With the timelike baryonic form factors newly extracted from the measured baryonic B decays, we obtain B(B¯0→Λp¯D+,Λp¯D∗+)=(1.85±0.30,2.75±0.24)×10-5 to agree with the recent data from the Belle Collaboration, which demonstrates that the theoretical approach based on the factorization still works well. For the angular distribution asymmetries, we find Aθ(B¯0→Λp¯D+,Λp¯D∗+)=(-0.030±0.002,+0.150±0.000), which are consistent with the current measurements. Moreover, we predict that Aθ(B¯0→pp¯D0,pp¯D∗0)=+0.04±0.01. Future precise explorations of these angular correlations at Belle and LHCb as well as super-Belle are important to justify the present factorization approach in the charmful three-body baryonic decays.