2016/07/23 by Carlos M. Reyes, Reyes, Carlos M., Luis F. Urrutia +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-ph
paper · pdf · doi:10.48550/arxiv.1607.06984
3 pages, no figures, Presented at the Seventh Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 20-24, 2016
arxiv created 2016/07/23 · arxiv updated 2016/07/26
In this work, in the light of the developments for indefinite metric theories made by Lee and Wick, we study perturbative unitarity in a Lorentz-invariance violating QED model with higher-order operators. We show that by following the Lee-Wick prescription it is possible to preserve unitarity in the model at one-loop order in the coupling.