$B^{\ast }{B}^{\ast }\rho$ vertex from QCD sum rules

Abstract

The form factors and the coupling constants in the $B^{\ast }{B}^{\ast }\rho$ vertex are evaluated in the framework of three-point QCD sum rules. The correlation functions responsible for the form factors are evaluated considering contributions of both $B^{\ast }$ and $\rho$ mesons as off-shell states. The obtained numerical results for the coupling constants are in agreement with light-cone QCD sum rules calculations.

18 pages, 11 figures, to appear on Phys. Lett. B

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• The strong vertices of charmed mesons $D$, $D^{\ast }$ and charmonia $J/\psi$, ${\eta }_c$
• $B_s{B}^{\ast }K$ and $B_{s}B{K}^{\ast }$ vertices using QCD sum rules
• Analysis of the electromagnetic form factors and the radiative decays of the vector heavy-light mesons
• The strong vertices of bottom mesons $B$, $B^{\ast }$ and bottomonia ${\rm Y}$, ${\eta }_b$
• Heavy-meson chiral Lagrangians, effective flavored couplings, SU(4) flavor breaking and their consequences
• Analysis of the strong vertices ${\Lambda }_c{D}^{(\ast )}{N}^{\ast }(1535)$ and ${\Lambda }_b{B}^{(\ast )}{N}^{\ast }(1535)$ in QCD sum rules
• Strong coupling constants of charmed and bottom mesons with light vector mesons in QCD sum rules
• Dispersive Analysis of $D$- and $B$-Meson Form Factors with Chiral and Heavy-Quark Constraints
• Strong coupling constant of h${}_b$ vector to the pseudoscalar and vector $B_c$ mesons in QCD sum rules