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Spin effects in B_c -> X_cc + π(ρ) decays

V. A. Saleev
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Abstract

The two-particle hadronic decays of B_c meson into S-wave and P-wave charmonium states X_cc are considered in the framework of hard gluon exchange model. It is shown that decay width of B_c meson into S-wave charmonium states doubly exceeds one for S-wave states. In compare with the previous estimations we predict the enhancement by 8 % the branching ratio for the B_c decays into J/psi in the two-particle hadronic decays via the contribution of the radiative decays of P-wave states in the cascade processes.

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V. A. Saleev. 2000-10-25. Spin effects in B_c -> X_cc + π(ρ) decays. https://arxiv.org/abs/hep-ph/0007352

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