Monte Carlo evaluation of divergent one-loop integrals without contour deformation
High Energy Physics - Phenomenology
2024-07-26 v2 High Energy Physics - Theory
Abstract
Reference [1] introduces a method for computing numerically four-dimensional multi-loop integrals without performing an explicit analytic contour deformation around threshold singularities. In this paper, we extend such a technique to massless scalar one-loop integrals regularized in the framework of dimensional regularization. A two-loop example is also discussed.
Keywords
Cite
@article{arxiv.2404.14868,
title = {Monte Carlo evaluation of divergent one-loop integrals without contour deformation},
author = {Roberto Pittau},
journal= {arXiv preprint arXiv:2404.14868},
year = {2024}
}
Comments
9 pages, 4 figures. A two-loop example has been added. Version published in EPJC