Two-particle decays of Bc meson into charmonium states
V. V. Kiselev, O. N. Pakhomova, V. A. Saleev
Abstract
The factorization of hard and soft contributions into the hadronic decays of Bc meson at large recoils is explored in order to evaluate the decay rates into the S, P and D-wave charmonia associated with rho and pi. The constraints of approach applicability and uncertainties of numerical estimates are discussed. The mode with the J/psi in the final state is evaluated taking into account the cascade radiative electromagnetic decays of excited P-wave states, that enlarges the branching ratio by 20-25%.
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