标题： 从软异常维数的次主导Regge极限 显示英文标题

标题： Subleading Regge limit from a soft anomalous dimension

摘要： 威尔逊线捕捉了散射振幅的重要特征，例如与红外发散相关的软效应以及瑞奇极限。 在领先阶近似之外，必须考虑对eikonal图像的修正。 在本文中，我们在N=4超杨-米尔斯理论的平面极限下研究这种修正，其中质量通过希格斯机制生成。 利用已知的散射振幅的三环解析表达式，我们发现第一个幂次抑制项具有非常简单的形式，等于一个单幂律。 我们提出其指数由带有标量插入在尖点处的威尔逊环的异常维数所控制，并为此提案提供了微扰证据。 我们还分析了振幅的其他极限，并推测了一个高能下的总截面的精确公式。 显示英文摘要

摘要： Wilson lines capture important features of scattering amplitudes, for example soft effects relevant for infrared divergences, and the Regge limit. Beyond the leading power approximation, corrections to the eikonal picture have to be taken into account. In this paper, we study such corrections in a model of massive scattering amplitudes in N = 4 super Yang-Mills, in the planar limit, where the mass is generated through a Higgs mechanism. Using known three-loop analytic expressions for the scattering amplitude, we find that the first power suppressed term has a very simple form, equal to a single power law. We propose that its exponent is governed by the anomalous dimension of a Wilson loop with a scalar inserted at the cusp, and we provide perturbative evidence for this proposal. We also analyze other limits of the amplitude and conjecture an exact formula for a total cross-section at high energies.