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首页> 外文期刊>Physical review, D. Covering particles,fields,gravitation,and cosmology >Factorization and angular distribution asymmetries in charmful baryonic B decays
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Factorization and angular distribution asymmetries in charmful baryonic B decays

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摘要

We examine the validity of the generalized factorization method and calculate the angular correlations in the charmful three-body baryonic decays of (B) over bar (0) -> Lambda(p) over barD*(+). With the timelike baryonic form factors newly extracted from the measured baryonic B decays, we obtain B((B) over bar (0) -> Lambda(p) over barD(+), Lambda(p) over barD*(+)) = (1.85 +/- 0.30; 2.75 +/- 0.24)x10(-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 A(theta)((B) over bar (0) -> Lambda(p) over barD(+), Lambda(p) over barD*(+)) = (-0.030 +/- 0.002, +0.150 +/- 0.000), which are consistent with the current measurements. Moreover, we predict that A(theta)((B) over bar (0) -> p (p) over barD(0), p (p) over barD*(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.

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