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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 q(r)q(r) 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.

Keywords

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

R2 v1 2026-07-01T04:47:00.374Z