Modifying the Dyson Series for Unstable Particles and Resonances
High Energy Physics - Phenomenology
2022-05-17 v2
Abstract
In this work, we introduce a modification of the Dyson series based on the perturbative unitarity as a starting point. The presented approach systematically avoids singularities and double-counting related to the presence of unstable particles as intermediate states and, at the same time, it does not rely on a specific choice of the renormalization scheme.
Keywords
Cite
@article{arxiv.2203.01253,
title = {Modifying the Dyson Series for Unstable Particles and Resonances},
author = {Peter Matak},
journal= {arXiv preprint arXiv:2203.01253},
year = {2022}
}