Semileptonic decays of $B (B_s)$ to light tensor mesons

TL;DR

This paper investigates semileptonic B and B_s decays to light tensor mesons using three-point QCD sum rules, estimating form factors and branching ratios, and comparing results with other methods.

Contribution

It provides new estimates of form factors and branching ratios for B and B_s semileptonic decays to light tensor mesons using QCD sum rules, including quark condensate effects.

Findings

Calculated form factors for B and B_s decays to tensor mesons.

Estimated branching ratios and compared with other approaches.

Included quark condensate contributions in the analysis.

Abstract

The semileptonic $B_s (B) \to K_2^*(a_2, f_2) \ell\nu$, $\ell=\tau, \mu$ transitions are investigated in the frame work of the three-point QCD sum rules. Considering the quark condensate contributions, the relevant form factors of these transitions are estimated. The branching ratios of these channel modes are also calculated and compared with the obtained data for other approaches.