标题： 从QCD求和规则中获得强耦合常数g_{J/ψD_s D_s}和g_{φ D_s D_s} 显示英文标题

标题： Obtaining the strong coupling constants g_{J/ψD_s D_s} and g_{φ D_s D_s} from QCD Sum Rules

摘要： 介子顶点 J/\psi D_s D_s 和 \phi D_s D_s 的形式因子和耦合常数是通过在 QCD 求和规则框架内使用三点关联函数计算得到的。 我们考虑了\phi 、D_s 和 J/\psi 介子为非壳的情况，对于每个顶点，得到了两个不同的形式因子及其相应的耦合常数，即 g_{J/\psi D_s D_s} = 6.20^{+0.97}_{-1.15} 和 g_{\phi D_s D_s} = 1.85^{+0.22}_{-0.23}。 显示英文摘要

摘要： The form factors and coupling constants of the meson vertices J/\psi D_s D_s and \phi D_s D_s were calculated using three point correlation functions within the QCD Sum Rules formalism. We have considered the cases where \phi, D_s and J/\psi mesons are off-shell obtaining, for each vertex, two different form factors and its corresponding coupling constants, namely g_{J/\psi D_s D_s} = 6.20^{+0.97}_{-1.15} and g_{\phi D_s D_s} = 1.85^{+0.22}_{-0.23}.