On Lorentz violation in Horava-Lifshitz type theories

Details On Lorentz violation in Horava-Lifshitz type theories On Lorentz violation in Horava-Lifshitz type theories

2010-10-25

arxiv.org/abs/1010.5249v3

Physics

High Energy Physics

High Energy Physics - Theory

24 pages, Main results are very much strengthened in this new version, where the gauge-choice independence of the main conclus

Scientific paper

We show that coupling the Standard Model to a Lorentz symmetry violating sector may co-exist with viable phenomenology, provided that the interaction between the two is mediated by higher-dimensional operators. In particular, if the new sector acquires anisotropic scaling behavior above a "Horava-Lifshitz" energy scale L_HL and couples to the Standard Model through interactions suppressed by M_P, the transmission of the Lorentz violation into the Standard Model is protected by the ratio L_HL^2/M_P^2. A wide scale separation, L_HL<

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