Rare $B_s$ decays in the relativistic quark model

Understand

The branchings fractions of the rare $B_s$ decays are calculated in the framework of the QCD-motivated relativistic quark model.

• The form factors of the weak $B_s$ transitions to light mesons are expressed through the overlap integral of the initial and final meson wave functions in the whole accessible kinematical range.
• Explicit determination of the momentum transfer dependence of the form factors without additional model assumptions and extrapolations significantly improve the reliability of the obtained results.
• The approximate analytical form of the form factors is given in order to simplify the comparison with other predictions and experiment.