Speakers
Description
Revisiting semileptonic B decays with tensor mesons in the final state
J. H. Muñoz¹ and J. C. Romero²
1 Departamento de Física, Facultad de Ciencias, Universidad del Tolima
2 Semillero QUARK, Programa de Física, Universidad del Tolima
We revisit the production of tensor mesons in semileptonic B decays within the framework of the nonrelativistic quark model of Isgur-Scora-Grinstein-Wise and the QCD factorization approach (QCDF). At tree level, we obtain the branching ratios of these decays in both frameworks and analyze the contribution of each form factor. We also present de Dalitz plot for these processes and calculate the relation:
$$R(D^*_2)= \dfrac{Br(B\rightarrow D^*_2\tau\nu_\tau)}{Br(B\rightarrow D^*_2l\nu_\tau)}, \quad l = e,\mu$$ In adition, we compare the $B\rightarrow T\tau\nu_\tau$ with the adronic $B\rightarrow TM$ decays, where $M$ denotes a pseudoescalar or vector meson.
