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arXiv · hep-ph/0208168

Strong Couplings of Heavy Mesons to A Light Vector Meson in QCD

Zuo-Hong Li·Tao Huang·Jin-Zuo Sun·Zhen-Hong Dai
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Abstract

We make a detailed analysis of the $BBρ(DDρ)$ and $B^*Bρ(D^{*}Dρ)$ strong couplings $g_{BBρ}(g_{DDρ})$ and $g_{B^*Bρ}(g_{D^{*}Dρ})$ using QCD light cone sum rules(LCSR). The existing some negligence is pointed out in the previous LCSR calculation on $g_{B^*Bρ} (g_{D^{\ast}Dρ}$) and an updated estimate is presented. Our findings can be used to understand the behavior of the $B,D \to ρ$ semileptonic form factors at large momentum transitions.

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Zuo-Hong Li, Tao Huang, Jin-Zuo Sun, Zhen-Hong Dai. 2002-08-20. Strong Couplings of Heavy Mesons to A Light Vector Meson in QCD. https://doi.org/10.1103/physrevd.65.076005

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