B_c meson rare decays in the light-cone quark model

Details B_c meson rare decays in the light-cone quark model B_c meson rare decays in the light-cone quark model

2010-04-24

arxiv.org/abs/1004.4274v4

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 11 figures, version accepted for publication in EPJC

Scientific paper

We investigate the rare decays $B_c \rightarrow D_s(1968) \ell \bar{\ell}$ and $B_c\rightarrow D_s^*(2317) \ell \bar{\ell}$ in the framework of the light-cone quark model (LCQM). The transition form factors are calculated in the space-like region and then analytically continued to the time-like region via exponential parametrization. The branching ratios and longitudinal lepton polarization asymmetries (LPAs) for the two decays are given and compared with each other. The results are helpful to investigating the structure of $B_c$ meson and to testing the unitarity of CKM quark mixing matrix. All these results can be tested in the future experiments at the LHC.

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