Work

H graph with unequal masses in quantum field theory

Year: 2024

Type: article

Abstract: We compute the family of Feynman integrals related to the H graph with unequal masses in relativistic quantum field theory. We present an ϵ -factorized differential equation for the 40 master integrals. The alphabet consists of 29 dlog forms with algebraic arguments, involving six square roots. As these square roots are not simultaneously rationalizable, we express the master integrals in terms of iterated integrals. In addition, we express the H graph with unit powers of the propagators up to weight 4 in terms of multiple polylogarithms in compact form. Published by the American Physical Society 2024

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.110.076018

Authors: Philipp Alexander Kreer, Stefan Weinzierl

Institutions: Technical University of Munich, Johannes Gutenberg University Mainz

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: hybrid

Funders: European Commission, Horizon 2020 Framework Programme, European Research Council

Awards: G7592340874, G7832817051