We carry out a detailed analysis of effects of flavor dependence of average transverse quark momentum inside a meson onJ/ψ→Pandϒ→Bctransition form factors and two-body weak hadronic decays ofJ/ψandϒemploying the factorization scheme. We predict the branching ratios of semileptonic and nonleptonic weak decays ofJ/ψandϒmesons in Cabibbo-angle-enhanced and Cabibbo-angle-suppressed modes.

We present a detailed analysis of the Bc form factors in the BSW framework, considering the flavor dependence of the average transverse quark momentum in the mesons. The branching ratios of Bc decaying to two pseudoscalar mesons are consequently predicted.

Encouraged by the recent discovery of the Ξ cc baryon, we investigate two-body nonleptonic weak decays of doubly charmed, Ξ cc , baryons. We calculate the branching ratios for Cabibbo-Kobayashi-Maskawafavored and -suppressed modes in factorization and pole model approaches. The preliminary estimates of nonfactorizable W-exchange contributions are obtained using the pole model. We find that the W-exchange contributions to Ξ cc decays, being sizable, cannot be ignored.