论文标题
因分解而进行的强烈订购的用于减法的红外线限制
Strongly-ordered infrared limits for subtraction counterterms from factorisation
论文作者
论文摘要
在简要介绍了高阶对撞机的红外差异问题的减法问题之后，我们从分解的角度提出了对强定量的软辐射的初步研究。我们表明，可以在强烈的限制范围内重新估计散射振幅中的田间和威尔逊线的矩阵元素，这些元素可以重新归因，从而提供了一种系统的方法来计算它们，以表征它们的奇异性结构，并构建局部的量子，以构建强烈排序的配置。我们的结果为详细的减法算法组织提供了工具，原则上是扰动理论中所有订单的工具。
After a brief introduction to the problem of subtraction of infrared divergences for high-order collider observables, we present a preliminary study of strongly-ordered soft and collinear multiple radiation from the point of view of factorisation. We show that the matrix elements of fields and Wilson lines that describe soft and collinear radiation in factorised scattering amplitudes can be re-factorised in strongly-ordered limits, providing a systematic method to compute them, to characterise their singularity structure, and to build local subtraction counterterms for strongly-ordered configurations. Our results provide tools for a detailed organisation of subtraction algorithms, in principle to all orders in perturbation theory.
