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LORENTZ-INVARIANCE VIOLATION WITH HIGHER-ORDER OPERATORS

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2016
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PROCEEDINGS OF THE SEVENTH MEETING ON CPT AND LORENTZ SYMMETRY
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IN THIS WORK, IN THE LIGHT OF THE DEVELOPMENTS FOR INDEFINITE METRIC THEORIES MADE BY LEE AND WICK, WE STUDY PERTURBATIVE UNITARITY IN A LORENTZ-INVARIANCE VIOLATING QED MODEL WITH HIGHER-ORDER OPERATORS. WE SHOW THAT BY FOLLOWING THE LEE-WICK PRESCRIPTION IT IS POSSIBLE TO PRESERVE UNITARITY IN THE MODEL AT ONE-LOOP ORDER IN THE COUPLING
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