Study of $B\to p\bar{p}K^*$ and $B\to p\bar{p}ρ$

Details Study of $B\to p\bar{p}K^*$ and $B\to p\bar{p}ρ$ Study of $B\to p\bar{p}K^*$ and $B\to p\bar{p}ρ$

2007-02-26

arxiv.org/abs/hep-ph/0702249v2

Phys.Rev.D75:094013,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, one figure, version to be published in PRD

Scientific paper

10.1103/PhysRevD.75.094013

We study the three-body baryonic B decays of $B\to p\bar{p}(K^{*},\rho)$ in the standard model. The baryonic matrix elements are calculated in terms of the SU(3) flavor symmetry and the QCD power counting rules within the the perturbative QCD. We find that the decay branching ratios, angular and direct CP asymmetries of ($B^{-}\to p\bar{p}K^{*-}, \bar{B}^{0}\to p\bar{p}K^{*0}, B^{-}\to p\bar{p}\rho^{-}$) are around $(6,1,30)\times 10^{-6}$, $(13,-27,11)%$ and $(22,1,-3)%$, which are consistent with the current BaBar and Belle data, respectively. The large values of the branching ratio in $B^{-}\to p\bar{p}\rho^{-}$ and the direct CP asymmetry in $B^{\pm}\to p\bar{p}K^{*\pm}$ are useful to test the standard model and search for new physics.

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