On the Resonance Coupling and Width in Quantum Field Theory
High Energy Physics - Phenomenology
2025-10-24 v1
Abstract
In quantum field theory, characteristics of resonances are related to self-energy diagrams, which are ultra-violet divergent and require renormalization. We demonstrate the proper way to define the resonance coupling such that the resonance properties calculated in quantum field theory are finite and scheme-independent quantities.
Cite
@article{arxiv.2510.20488,
title = {On the Resonance Coupling and Width in Quantum Field Theory},
author = {Dmitri Melikhov},
journal= {arXiv preprint arXiv:2510.20488},
year = {2025}
}
Comments
5 pages