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arXiv · 2608.29683

On-shell renormalization in NREFT: a simplified description of resonances, bound states, and coupled channel effects

Guo-Ying Chen
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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.

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Guo-Ying Chen. 2026-08-30. On-shell renormalization in NREFT: a simplified description of resonances, bound states, and coupled channel effects. https://arxiv.org/abs/2608.29683

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