Analysis of the vertex $D^{\ast }{D}^{\ast }\rho$ with the light-cone QCD sum rules

Abstract

In this article, we analyze the vertex $D^{\ast }{D}^{\ast }\rho$ with the light-cone QCD sum rules. The strong coupling constant $g_{D^{\ast }{D}^{\ast }\rho }$ is an important parameter in evaluating the charmonium absorption cross sections in searching for the quark-gluon plasmas. Our numerical value for the $g_{D^{\ast }{D}^{\ast }\rho }$ is consistent with the prediction of the effective SU(4) symmetry and vector meson dominance theory.

6 pages, 1 figure, revised version

References in corpus (3)

• Analysis of the vertices D^*D^* P, D^*D V and DDV with light-cone QCD sum rules
• Analysis of the vertices $DDV$ and $D^{\ast }DV$ with light-cone QCD sum rules
• Scalar form factors $f_{\pi \pi }(Q^2)$ and $f_{KK}(Q^2)$ with light-cone QCD sum rules