One-loop calculations in CPT-even Lorentz-breaking scalar QED

Abstract

In this paper, we study a CPT-even Lorentz-breaking extension of the scalar QED. For this theory, we calculate the one-loop lower-order contributions in the Lorentz-violating parameters to the two-point functions of scalar and gauge fields. We found that the two background tensors, coming from the two sectors (scalar and gauge) are mixed in the one-loop corrections both in finite and divergent parts. This shows that these two Lorentz-breaking terms cannot be studied in an isolated form. Besides, the results in the gauge sector are confirmed to be transversal.

13 pages, 2 figures, accepted to Mod. Phys. Lett. A

References in corpus (3)

• Searching for photon-sector Lorentz violation using gravitational-wave detectors
• Limits on Neutron Lorentz Violation from the Stability of Primary Cosmic Ray Protons
• Higher-order one-loop renormalization in the spinor sector of minimal LV extended QED

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• Modified Euler-Heisenberg effective action and Proper-Time Method in Lorentz-Violating Scalar QED
• Two-loop renormalization of the CPT-even Lorentz-violating Scalar QED
• One-loop contributions in Lorentz-violating scalar QED with nonminimal coupling