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arXiv · 2603.13684

On the Gauge-Invariant Fermion

Kang-Sin Choi
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Abstract

We show that the Dirac dressing of the fermion is equivalent to a shift of the gauge parameter. For every gauge, the gauge-dependent part is projected out of physical observables. After renormalization, the physical mass is the same for every dressing. The non-locality, compositeness and path dependence associated with the dressing are therefore not physical obstructions.

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Kang-Sin Choi. 2026-03-17. On the Gauge-Invariant Fermion. https://arxiv.org/abs/2603.13684

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