Unitarity in higher-order Lorentz-invariance violating QED
High Energy Physics - Theory
2013-07-24 v1 High Energy Physics - Phenomenology
Abstract
The unitarity in Lorentz invariance violating QED consisting of standard fermions and higher-order photons of the Myers-Pospelov theory is studied. We find ghost states associated to the higher-order character of the theory which could render the matrix nonunitary. An explicit calculation to check perturbative unitarity in the process of electron-positron scattering is performed and it is found to be possible to preserve unitarity.
Cite
@article{arxiv.1307.5340,
title = {Unitarity in higher-order Lorentz-invariance violating QED},
author = {Carlos M. Reyes},
journal= {arXiv preprint arXiv:1307.5340},
year = {2013}
}
Comments
7 pages, 2 figures, to appear in Phys. Rev.D