Exclusive semileptonic and nonleptonic decays of B mesons to orbitally excited light mesons

TL;DR

This paper calculates the form factors for B meson decays into orbitally excited light mesons using a relativistic quark model, providing predictions that align well with experimental data.

Contribution

It introduces a systematic relativistic approach to compute decay form factors and decay rates for B mesons to excited light mesons, enhancing theoretical understanding.

Findings

Form factors are expressed through meson wave function overlaps.

Decay rates are predicted across the full kinematic range.

Results agree well with experimental measurements.

Abstract

The form factors of weak decays of the B meson to orbitally excited scalar, axial vector and tensor light mesons are calculated in the framework of the QCD-motivated relativistic quark model based on the quasipotential approach. Relativistic effects are systematically taken into account. The form factors are expressed trough the overlap integrals of the meson wave functions and their dependence on the momentum transfer is selfconsistently determined in the whole kinematical range. On this basis semileptonic and two-body nonleptonic B decay rates to orbitally excited light mesons are calculated. Good agreement of the obtained predictions with available experimental data is found.