论文标题
Twist-3 Gluon片段化对极化超子产生的贡献的新推导
A New Derivation of the Twist-3 Gluon Fragmentation Contribution to Polarized Hyperon Production
论文作者
论文摘要
提出了一种提出质子 - 蛋白质碰撞中超子极化贡献的新型方法。该方法采用协变量量规，并在执行共线扩展之前充分利用了塔卡哈西的身份。它提供了构建通用横截面公式的强大方法，并且对于QCD耦合常数而言，在领先顺序中没有幽灵的术语不存在类似幽灵的术语。
A novel method of formulating the twist-3 gluon fragmentation function contribution to hyperon polarization in the proton-proton collision is presented. The method employs a covariant gauge and takes full advantage of the Ward-Takahashi identities before performing the collinear expansion. It provides a robust way of constructing the general cross section formula, and also a clear understanding for the absence of the ghost-like terms in the twist-3 cross section in the leading order with respect to the QCD coupling constant.
