The Photon Sector in the Quantum Myers-Pospelov Model: An improved description

Abstract

The quantization of the electromagnetic sector of the Myers-Pospelov model coupled to standard fermions is studied. Our main objective is to construct an effective quantum theory that results in a genuine perturbation of QED, such that setting zero the Lorentz invariance violation (LIV) parameters will reproduce it. This is achieved by introducing an additional low energy scale $M$, together with a physically motivated prescription to take the QED limit. The prescription is successfully tested in the calculation of the electron self-energy in the one loop approximation. The LIV radiative corrections turn out to be properly scaled by very small factors for any reasonable values of the parameters, no fine-tuning problems are found at this stage and the choice for $M$ to be of the order of the electroweak symmetry breaking scale is consistent with the stringent bounds for the LIV parameters, in particular with those arising from induced dimension three operators.

11 pages, no figures, shortened version, new interpretation of the scale M, additional references added, accepted for publication in Phys. Lett. B

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Cited by in corpus (2)

• Causality and stability for Lorentz-CPT violating electrodynamics with dimension-5 operators
• Radiatively induced Lorentz-violating operator of mass dimension five in QED