Unitarity in a Lorentz symmetry breaking model with higher-order operators
High Energy Physics - Phenomenology
2014-03-26 v2
Abstract
We analyze the unitarity of a modified QED with higher-order terms that violate Lorentz symmetry. We make an explicit calculation to verify unitarity at the one-loop level. As expected we find negative norm states that could in principle lead to a violation of unitarity. However, we show that these states become massive in Euclidean space and do not contribute to the discontinuity.
Cite
@article{arxiv.1401.3752,
title = {Unitarity in a Lorentz symmetry breaking model with higher-order operators},
author = {Markos Maniatis and Carlos M. Reyes},
journal= {arXiv preprint arXiv:1401.3752},
year = {2014}
}
Comments
4 pages,2 figures, published in Phys. Rev.D