In particle physics, the Wess–Zumino gauge is a particular choice of a gauge transformation in a gauge theory with supersymmetry. In this gauge, the supersymmetrized gauge transformation is chosen in such a way that most components of the vector superfield vanish, except for the usual physical ones, when the function of the superspace is expanded in terms of components.
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Wess–Zumino gauge Wikipedia(Text) CC BY-SA