The form factors and the coupling constants in the B∗B∗ρ 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∗ and ρ mesons as off-shell states. The obtained numerical results for the coupling constants are in agreement with light-cone QCD sum rules calculations.
@article{arxiv.1204.3979,
title = {$B^{\ast}B^{\ast}\rho$ vertex from QCD sum rules},
author = {Chun-Yu Cui and Yong-Lu Liu and Ming-Qiu Huang},
journal= {arXiv preprint arXiv:1204.3979},
year = {2012}
}