Asymptotic analysis of Feynman diagrams and their maximal cuts
High Energy Physics - Phenomenology
2020-12-30 v3 High Energy Physics - Theory
Abstract
The ASPIRE program, which is based on the Landau singularities and the method of power geometry to unveil the regions required for the evaluation of a given Feynman diagram asymptotically in a given limit, also allows for the evaluation of scaling coming from the top facets. In this work, we relate the scaling having equal components of the top facets of the Newton polytope to the maximal cut of given Feynman integrals. We have therefore connected two independent approaches to the analysis of Feynman diagrams.
Keywords
Cite
@article{arxiv.2003.02451,
title = {Asymptotic analysis of Feynman diagrams and their maximal cuts},
author = {B. Ananthanarayan and Abhijit B. Das and Ratan Sarkar},
journal= {arXiv preprint arXiv:2003.02451},
year = {2020}
}
Comments
34 pages latex, 7 figures and 2 tables, ancillary Mathematica files provided, substantially extended and improved, added new sections(sub-section-2.5, section-3,4,appendix-B), References added, version accepted for publication in EPJC