Study of $B \to K_0^* (1430)\ell\bar{\ell} $ Decays

Chen, Chuan-Hung; Geng, Chao-Qiang; Lih, Chong-Chung; Liu, Chun-Chu

Study of $B \to K_0^* (1430)\ell\bar{\ell} $ Decays

Authors

Description

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 $\ell=ν,e,μ,τ$ 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 $\ell=(ν,e,μ,τ)$ and the integrated longitudinal lepton polarization asymmetries $(-0.97,-0.95,-0.03)$ with $\ell=(e,μ,τ)$, respectively.
12 pages, 4 figures, final version published in PRD