论文标题
Quark-Gluon Partononic频道的阈值重新召集，以近代领导的力量
Threshold resummation of quark-gluon partonic channels at next-to-leading power
论文作者
论文摘要
我们讨论了有关在接近阈值的散射过程中以近代领导力（NLP）重新召集大型对数的最新进展。我们首先简要审查示意图和可见方法，这些方法用于在此运动学极限下得出物理可观察物的分解定理。然后，我们专注于深度非弹性散射和Drell-Yan中的夸克 - 格鲁恩通道。我们表明，使用一致性条件在HADRONIC横截面中取消领先的杆子可用于在NLP上在NLP上重新召集示意图和cot方法。在这种情况下，还可以研究scet中NLP出现的端点差异的问题，并将其解决方案与重新分解的概念相关联。
We discuss recent progress concerning the resummation of large logarithms at next-to-leading power (NLP) in scattering processes near threshold. We begin by briefly reviewing the diagrammatic and SCET approach, which are used to derive factorization theorems for physical observables in this kinematic limit. Then, we focus on the quark-gluon channel in deep inelastic scattering and Drell-Yan. We show that the use of consistency conditions for the cancellation of leading poles in the hadronic cross section can be used to achieve the resummation of large leading logarithms (LLs) at NLP, both within diagrammatic and SCET methods. In this context it is also possible to investigate the problem of endpoint divergences appearing at NLP in SCET, and relate its solution to the concept of re-factorization.
