Work

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

Year: 2024

Type: article

Abstract: A bstract We calculate master integrals for the two-loop QED corrections to e + e − → 2 γ 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.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep12(2024)106

Authors: Roman N. Lee, Vyacheslav A. Stotsky

Institutions: Budker Institute of Nuclear Physics, Novosibirsk State University

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Russian Science Foundation

Award: G6808547609