论文标题
NLO的混合KT因素化和影响因素
Hybrid kT-factorization and impact factors at NLO
论文作者
论文摘要
在杂交KT类别的公式中，一个初始状态的Parton动量具有空间状，并且携带非呈横向组件，而另一个则是壳。我们将这种分解公式提升为临近领先的顺序。在研究党横截面时，我们确定了真实和虚拟贡献中的所有软和共线发散，并认识到所有非癌性都可以归因于PDF进化，进化核和目标影响因素。因此，我们构建了一个框架，该框架通常用于计算NLO影响因素。特别是，我们恢复了已知的NLO Quark和Gluon撞击因子校正的已知表达式。
In the hybrid kT-factorization formula, one initial-state parton momentum is space-like and carries non-vanishing transverse components, while the other is on-shell. We promote this factorization formula to next-to-leading order. Studying the partonic cross section, we identify all soft and collinear divergencies in the real and virtual contribution, and recognize that all non-cancelling ones can be attributed to PDF evolution, evolution kernel, and target impact factors. In result, we construct a framework that may be used to compute NLO impact factors in general. In particular, we recover known expressions for inclusive NLO quark-and gluon impact factor corrections.
