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Search: authors:"H. G. Fargnoli"

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Tree-level equivalence between a Lorentz-violating extension of QED and its dual model in electron–electron scattering

S-matrix amplitudes for the electron–electron scattering are calculated in order to verify the physical equivalence between two Lorentz-breaking dual models. We begin with an extended Quantum Electrodynamics which incorporates CPT-even Lorentz-violating kinetic and mass terms. Then, in a process of gauge embedding, its gauge-invariant dual model is obtained. The physical ...