Work

Calculation of One-Loop Integrals for Four-Photon Amplitudes by Functional Reduction Method

Year: 2023

Type: article

Abstract: The method for functional reduction of Feynman integrals, proposed by the author, is used to calculate one-loop integrals corresponding to diagrams with four external lines. The integrals that emerge from amplitudes for the scattering of light by light, the photon splitting in an external field and Delbrück scattering are considered. For master integrals in $$d$$ -dimensions, new analytic results are presented. For $$d = 4$$ , these integrals are given by compact expressions in terms of logarithms and dilogarithms.

Source: Physics of Particles and Nuclei Letters

DOI: 10.1134/s1547477123030676

Author: O. V. Tarasov

Institution: Joint Institute for Nuclear Research

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: green

OpenAlex ID: W4381621179

FWCI: 0.226

Cites: 15

Cited by: 3

Related to: 10