Reduction of Feynman integrals in the parametric representation

• Published in: The journal of high energy physics Vol. 2020; no. 2; pp. 1 - 11
• Main Author: Chen, Wen
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2020; Springer Nature B.V; SpringerOpen
• Subjects: Algorithms; Classical and Quantum Gravitation; Elementary Particles; High energy physics; Identities; Integrals; Mathematical analysis; NLO Computations; Permutations; Physics; Physics and Astronomy; QCD Phenomenology; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Reduction; Regular Article - Theoretical Physics; Relativity Theory; Representations; Scalars; String Theory; Tensors; NLO Computations; QCD Phenomenology

A bstract In this paper, the reduction of Feynman integrals in the parametric representation is considered. This method proves to be more efficient than the integration-by-part (IBP) method in the momentum space. Tensor integrals can directly be parametrized without performing tensor reductions. The...