Speakers
Description
Study of semileptonic $B$ decays with scalar mesons in the final state
J. H. Muñoz$^{1}$ and J. J. Russi$^{2}$
$^{1}$ Departamento de Física, Facultad de Ciencias, Universidad del Tolima
$^{2}$ Semillero QUARK, Programa de Física, Facultad de Ciencias, Universidad del Tolima
We investigate the semileptonic decays $B \to S \, \ell \, \nu_{\ell}$, where $S$ is the $p$-wave scalar meson ($^3P_0$), within the framework of the nonrelativistic quark model of Isgur-Scora-Grinstein-Wise. At tree level, we obtain the branching ratios of these decays and examine the contribution of each form factor. In addition, we compare the process $B \to S \, \tau \, \nu_{\tau}$ with $B \to P \, \tau \, \nu_{\tau}$, where $P$ denotes a pseudoscalar meson, as well as with the hadronic decays $B \to S \, M$, where $M$ denotes a pseudoscalar or vector meson. Moreover, we determine the mixing angle for the physical isoscalar mesons and show the Dalitz plot for these processes.
