Higher symmetries in axion EFTs impose emergence constraints universally saturated by anomaly inflow onto topological defects but relaxed in perturbative UV completions due to scale separation.
Generalised Symmetries in Particle Physics
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Generalizes spurion analysis to non-invertible near-group fusion algebras, introduces coupling labels, and explains radiative violation of tree-level selection rules.
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Generalized symmetries and emergence in axion effective field theories
Higher symmetries in axion EFTs impose emergence constraints universally saturated by anomaly inflow onto topological defects but relaxed in perturbative UV completions due to scale separation.
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Spurion Analysis for Non-Invertible Selection Rules from Near-Group Fusions
Generalizes spurion analysis to non-invertible near-group fusion algebras, introduces coupling labels, and explains radiative violation of tree-level selection rules.