Two-particle decays of B_c meson into charmonium states

Kiselev, V. V.; Pakhomova, O. N.; Saleev, V. A.

Two-particle decays of B_c meson into charmonium states

Authors

Kiselev, V. V.

Pakhomova, O. N.

Saleev, V. A.

Description

The factorization of hard and soft contributions into the hadronic decays of B_c 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%.
13 pages, LaTeX axodraw-style, 1 figure, 2 tables