Strong vertices of bottom mesons B and B* and bottomonia , ηb *

Abstract

Abstract In this study, the strong coupling constants of vertices , , , , and are analyzed in the framework of QCD sum rules. All possible off-shell cases and the contributions of vacuum condensate terms including , , , , and are considered. The momentum dependent strong coupling constants are first calculated and then fitted into the analytical function , which is extrapolated to time-like regions to obtain the final values of strong coupling constants. The final results are , GeV , , , and GeV . These strong coupling constants are important input parameters that reflect the dynamic properties of the interactions among the mesons and quarkonia.