### Abstract

B _{s} ^{0}→D _{s} ^{-} and B _{s} ^{0}→D _{s}* ^{-} weak transition form factors are estimated for the whole physical region with a method based on an instantaneous approximated Mandelstam formulation of transition matrix elements and the instantaneous BetheSalpeter equation. We apply the estimated form factors to branching ratios, CP asymmetries and polarization fractions of non-leptonic decays within the factorization approximation. We study the non-factorizable effects and annihilation contributions with the perturbative QCD approach. The branching ratios of semi-leptonic B _{s} ^{0}→D _{s} ^{(*)}l ^{+} _{l} decays are also evaluated. We show that the calculated decay rates agree well with the available experimental data. The longitudinal polarization fractions of B _{s} D _{s} ^{*} V(A) decays are ∼0.8 when V(A) denotes a light meson and are ∼0.5 when V(A) denotes a D _{q} (q = d, s) meson.

Original language | English |
---|---|

Article number | 045002 |

Journal | Journal of Physics G: Nuclear and Particle Physics |

Volume | 39 |

Issue number | 4 |

DOIs | |

Publication status | Published - 2012 Apr |

### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics

## Fingerprint Dive into the research topics of 'Estimating form factors of B <sub>s</sub>→D <sub>s</sub> <sup>(*)</sup> and their applications to semi-leptonic and non-leptonic decays'. Together they form a unique fingerprint.

## Cite this

_{s}→D

_{s}

^{(*)}and their applications to semi-leptonic and non-leptonic decays.

*Journal of Physics G: Nuclear and Particle Physics*,

*39*(4), [045002]. https://doi.org/10.1088/0954-3899/39/4/045002