Study Pure Annihilation Decays $B_s^0(\bar B_s^0)\to D^{\pm}π^{\mp}$ in PQCD Approach

Details Study Pure Annihilation Decays $B_s^0(\bar B_s^0)\to D^{\pm}π^{\mp}$ in PQCD Approach Study Pure Annihilation Decays $B_s^0(\bar B_s^0)\to D^{\pm}π^{\mp}$ in PQCD Approach

2005-02-03

arxiv.org/abs/hep-ph/0502038v2

Commun.Theor.Phys.44:659-664,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages,4 figures, typos corrected

Scientific paper

The rare decays $B_s^0\to D^\pm \pi^\mp$ and $\bar B_s^0\to D^\mp \pi^\pm$ can occur only via annihilation type diagrams in the standard model. In this paper, we calculate branching ratios of these decays in perturbative QCD approach ignoring soft final state interaction. From our calculation, we find that their branching ratios are at $\mathcal{O}(10^{-6})$ with large CP asymmetry, which may be measured in LHC-b experiment in future.

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