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تسجيل مستخدم جديدResidual gauge-invariance in a massive Lorentz-violating extension of QED
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We reassess an alternative CPT-odd electrodynamics obtained from a Palatini-like procedure. Starting from a more general situation, we analyze the physical consistency of the model for different values of the parameter introduced in the mass tensor. We show that there is a residual gaugeinvariance in the model if the local transformation is taken to vary only in the direction of the Lorentz-breaking vector.
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