论文标题
背靠背运动学中两个大量发射器的分析双柔软的集成减法术语
Analytic double-soft integrated subtraction terms for two massive emitters in a back-to-back kinematics
论文作者
论文摘要
我们考虑了QCD振幅的双重限制，并在背靠背的运动学中有两个巨大的夸克，并伴有两个软partons。我们通过分析两个软分子的相位空间分析集成了各自的双soft Eikonal函数。在嵌套软共线减法方案的背景下，我们的结果可以作为分析和完全差异化的近代次要到领导顺序（NNLO）QCD校正的综合减法术语之一，以使颜色 - 单词衰减成巨大的零件或重型型生产。
We consider the double-soft limit of QCD amplitudes with two massive quarks in a back-to-back kinematics accompanied by two soft partons. We integrate analytically the respective double-soft eikonal functions over the phase space of the two soft partons. Within the context of the nested soft-collinear subtraction scheme, our results may serve as one of the integrated subtraction terms needed for the analytic and fully-differential description of next-to-next-to-leading order (NNLO) QCD corrections to colour-singlet decay into massive partons or to heavy-quark pair production.
