On the aether-like Lorentz-breaking actions

Details On the aether-like Lorentz-breaking actions On the aether-like Lorentz-breaking actions

2009-11-18

arxiv.org/abs/0911.3548v3

Phys. Rev. D81 (2010) 045018

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, version accepted to Physical Review D

Scientific paper

We demonstrate the generation of the CPT-even, aether-like Lorentz-breaking actions for the scalar and electromagnetic fields via their appropriate Lorentz-breaking coupling to spinor fields in three, four and five space-time dimensions. Besides, we show that the aether-like terms for the spinor field also can be generated as a consequence of the same couplings. Also we discuss the dispersion relations in the theories with aether-like Lorentz-breaking terms and find the tree-level effective (Breit) potential for fermion scattering and the one-loop effective potential corresponding to the action of the scalar field.

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