论文标题
来自淬灭晶格QCD的三粘体顶点的一般运动学
General kinematics of the three-gluon vertex from quenched lattice QCD
论文作者
论文摘要
我们使用标准的Wilson Action从淬火的晶格QCD模拟中介绍了横向预测的三luon顶点的新结果。虽然先前的作品集中在某些特殊的运动学上，例如对称$（q^2 = r^2 = p^2）$和软gluon $（p = 0）$ case，但我们将详细分析双向case $（r^2 = q^2 = q^2 \ ne p^2）$，在此，相反预测的Vertex可以在三个独立的tensors中代表三个独立的tensors casters casters casters casters cast of the sipers of三个独立的tensors。晶格数据表明，与树级张量相对应的形式因子明显优势，其依赖对动量的依赖性几乎可以完全用Momenta $ s^2 =（q^2+r^2+p^2）的对称组合表示。
We present new results for the transversely projected three-gluon vertex from quenched lattice QCD simulations using standard Wilson action. While previous works focused in some particular kinematics such as the symmetric $(q^2 = r^2 = p^2)$ and soft-gluon $(p = 0)$ cases, here we will present a detailed analysis of the bisectoral case $(r^2 = q^2 \ne p^2)$ where the transversely projected vertex can be cast in terms of three independent tensors. The lattice data show a clear dominance of the form-factor corresponding to the tree-level tensor, whose dependence on the momenta can be almost entirely expressed in terms of the symmetric combination of the momenta $s^2=(q^2+r^2+p^2)/2$.
