Meson B ~ *-b ~ *-�� Is The Qcd Interaction

An investigation of strong interactions between heavy mesons and a light vector mesonis of important phenomenological interest, and especially the relevant strong couplings canbe employed to understand the behavior of the corresponding heavy-to-light fbrm factors atlarge momentum transfer in a pole dominance model. The B~*B_ρand BB_ρstrong couplingshave been calculated, but the resulting form factors for heavy-to-light transitions fromQCD sum rule can not behave very well in the heavy quark limit m_Q�'∞; Anothernonperturbative quantity, the B~*B_ρ~* strong coupling has never been calculated before. Inthis work, we firstly apply light-cone sum rule (LCSR) to the theoretical calculation of thestrong couplings in the three processes, this method overcomes some defaults of traditionalQCD sum rule, and compare it with the other approaches, it also has its special advantages.In this framework, we make a detail analysis of the strong interaction of heavy-light mesonsby estimating the strong couplings gB~*B_ρ~* and fB~*B_ρ~*, then the resultant relations in theheavy quark limit are tested and verified, and a physical essence of the three B decays areanalysed. Our findings should be important for us to understand the final state interactions(FSI's) of B decays, to explain experimental data, to test CP-violation and to understandthe standard model (SM).