General One-loop Reduction in Generalized Feynman Parametrization Form
High Energy Physics - Theory
2022-10-05 v7 High Energy Physics - Phenomenology
Abstract
Recently there is an alternative reduction method proposed by Chen in [1,2]. In this paper, using the one-loop scalar integrals with propagators having higher power, we show the power of the improved version of Chen's new method in which we used some tricks to cancel the dimension shift and the terms we do not want. We present the explicit examples of bubble, triangle, box and pentagon with one propagators doubled. With these results, we have completed our previous computations in \cite{wang} with the missed tadpole coefficients.
Keywords
Cite
@article{arxiv.2109.09922,
title = {General One-loop Reduction in Generalized Feynman Parametrization Form},
author = {Hongbin Wang},
journal= {arXiv preprint arXiv:2109.09922},
year = {2022}
}