Quantifying non-invertible chiral symmetry breaking
High Energy Physics - Theory
2025-08-14 v1 High Energy Physics - Phenomenology
Abstract
It has recently been suggested that the chiral symmetry of the Standard Model is not explicitly broken by its ABJ anomaly, but is instead made non-invertible. In this work, I quantify the breaking of non-invertible symmetries of this type by calculating the symmetry breaking scales and effective charges originally studied for continuous invertible higher-form symmetries. As an example I consider the explicit breaking of the chiral symmetry of massless QED by introducing Yukawa couplings between the electron and a massive real scalar in the UV. I briefly comment on how one might quantify the breaking of general non-invertible symmetries.
Cite
@article{arxiv.2508.09254,
title = {Quantifying non-invertible chiral symmetry breaking},
author = {Finn Gagliano},
journal= {arXiv preprint arXiv:2508.09254},
year = {2025}
}
Comments
5 pages + appendix, 2 figures