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arXiv · 1204.3979

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

Chun-Yu Cui·Yong-Lu Liu·Ming-Qiu Huang
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Abstract

The form factors and the coupling constants in the $B^{\ast}B^{\ast}ρ$ 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 $B^{\ast}$ 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.

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Chun-Yu Cui, Yong-Lu Liu, Ming-Qiu Huang. 2012-04-18. $B^{\ast}B^{\ast}ρ$ vertex from QCD sum rules. https://doi.org/10.1016/j.physletb.2012.04.015

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