Master integrals for e+e− → 2γ process at large energies and angles

IF 5.4 1区物理与天体物理 Q1 Physics and Astronomy

Journal of High Energy Physics Pub Date : 2024-12-13 DOI:10.1007/JHEP12(2024)106

Roman N. Lee, Vyacheslav A. Stotsky

引用次数: 0

Abstract

We calculate master integrals for the two-loop QED corrections to e⁺e⁻ → 2γ in terms of generalized power series with respect to electron mass. The coefficients of this series are expressed via Goncharov’s polylogarithms. Our approach exploits a number of modern multiloop methods: IBP reduction, differential equations for master integrals, Frobenius method, reduction to ϵ-form, and DRA method.

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我们用关于电子质量的广义幂级数来计算 e+e- → 2γ 的二环 QED 修正的主积分。这个级数的系数通过冈察洛夫多项式来表示。我们的方法利用了许多现代多环方法：IBP 还原法、主积分微分方程法、弗罗贝尼斯法、ϵ-形式还原法和 DRA 法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of High Energy Physics 物理-物理：粒子与场物理

CiteScore

10.30

自引率

46.30%

发文量

2107

审稿时长

1.5 months

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