Charmless weak $B_s$ decays in the relativistic quark model

Understand

The form factors of the weak $B_s$ transitions to the ground state and orbitally excited strange mesons are calculated in the framework of the QCD-motivated relativistic quark model based on the quasipotential approach.

• These form factors are expressed through the overlap integrals of meson wave functions found in their mass spectrum evaluations.
• The momentum dependence of the form factors is determined in the whole accessible kinematical range without any additional assumptions and extrapolations.
• Relativistic effects, including the wave function transformation from the rest to a moving reference frame as well as contributions of the intermediate negative-energy states, are consistently taken into account.