We study a QED extension that is unitary, CPT invariant, and super-renormalizable, but violates Lorentz symmetry at high energies, and contains higher-dimension operators (LVQED). Divergent diagrams are only one- and two-loop. We compute the one-loop renormalizations at high and low energies and analyze the relation between them. It emerges that the powerlike divergences of the low-energy theory are multiplied by arbitrary constants, inherited by the high-energy theory, and therefore can be set to zero at no cost, bypassing the hierarchy problem.
|Autori:||Anselmi D; Taiuti M|
|Titolo:||Renormalization of high-energy Lorentz-violating QED|
|Anno del prodotto:||2010|
|Digital Object Identifier (DOI):||10.1103/PhysRevD.81.085042|
|Appare nelle tipologie:||1.1 Articolo in rivista|