On-shell renormalization in NREFT: a simplified description of resonances, bound states, and coupled channel effects
Year: 2026
Type: preprint
Abstract: We discuss several issues regarding the modern generalization of Weinberg's compositeness criterion. In particular, we demonstrate that the on-shell renormalization in NREFT reproduces Weinberg's result and provides a simple description of resonances, bound states, and coupled channel effects. Additionally, we present the complete propagator, including the charged channel for the near-threshold p-wave states.
Source: arXiv (Cornell University)
Author: Chen, Guo-Ying
Institution: Hubei University of Education
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7204887123