Analysis of Vertex DDρ with Light-Cone QCD Sum Rules

• 来源期刊: 中国物理快报(英文版)
• 年，卷（期）: 2008,（2）
• 页码范围: 444-446
• 页数: 3页
• 语种: 英文

摘要

We analyse the vertex DD ρ with the light-cone QCD sum rules.The strong coupling constant Gd*D*ρ is an important parameter in evaluating the charmonium absorption cross sections in searching for the quark-gluon plasmas.Our numerical value for the Gd*D*ρ is consistent with the prediction of the effective SU(4)symmetry and vector meson dominance theory.