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

TL;DR

This paper calculates the form factors and coupling constants of the $B^{igstar}B^{igstar} ho$ vertex using three-point QCD sum rules, providing results consistent with light-cone QCD sum rules.

Contribution

It introduces a detailed QCD sum rule analysis of the $B^{igstar}B^{igstar} ho$ vertex considering off-shell contributions, enhancing understanding of meson interactions.

Findings

Coupling constants agree with light-cone QCD sum rules.

Form factors are evaluated for both $B^{igstar}$ and $ ho$ off-shell states.

Provides numerical values for the $B^{igstar}B^{igstar} ho$ vertex.

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.