We study exclusive nonleptonic two-body $B_c\to (D_{(s)},{\eta }_c,B_{(s)})+F$ decays with $F$ (pseudoscalar or vector mesons) factored out in the QCD factorization approach. The nonleptonic decay amplitudes are related to the product of meson decay constants and the form factors for semileptonic $B_c$ decays. As inputs in obtaining the branching ratios for a large set of nonleptonic $B_c$ decays, we use the weak form factors for the semileptonic $B_c\to (D_{(s)},{\eta }_c,B_{(s)})$ decays in the whole kinematical region and the unmeasured meson decay constants obtained from our previous light-front quark model. We compare our results for the branching ratios with those of other theoretical studies.

• Received 28 September 2009

DOI:https://doi.org/10.1103/PhysRevD.80.114003