Lorentz-Violating Running of Coupling Constants
High Energy Physics - Phenomenology
2020-04-14 v1 High Energy Physics - Theory
Abstract
We compute the full vacuum polarization tensor in the minimal QED extension. We find that its low-energy limit is dominated by the radiatively induced Chern-Simons-like term and the high-energy limit is dominated by the c-type coefficients. We investigate the implications of the high-energy limit for the QED and QCD running couplings. In particular, the QCD running offers the possibility to study Lorentz-violating effects on the parton distribution functions and observables such as the hadronic R ratio.
Cite
@article{arxiv.1911.07780,
title = {Lorentz-Violating Running of Coupling Constants},
author = {A. R. Vieira and N. Sherrill},
journal= {arXiv preprint arXiv:1911.07780},
year = {2020}
}
Comments
Presented at the Eighth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, May 12-16, 2019