We examine the exclusive rare decays of $B \to K_{ 0}^*(1430)\ell\bar{ \ell} $ with $K_{ 0}^*(1430)$ being the p-wave scalar meson and $\ell=\nu,e,\mu,\tau$ in the standard model. The form factors for the $B\to K_{ 0}^{ *}$ transition matrix elements are evaluated in the light front quark model. For the decays of $B \to K_{ 0}^*\ell\bar{ \ell}$, the branching ratios are found to be $(11.6,1.63,1.62,0.029)\times 10^{ -7}$ with $\ell=(\nu,e,\mu,\tau)$ and the integrated longitudinal lepton polarization asymmetries $(-0.97,-0.95,-0.03)$ with $\ell=(e,\mu,\tau)$, respectively.
Categories: hep-ph