CPT-Violating Gravitational Orbital Perturbations
High Energy Physics - Phenomenology
2019-11-07 v1
Abstract
A model for spontaneous symmetry breaking using a specific form of the bumblebee model is analyzed in the context of a Schwarzschild background metric. The resulting back reaction of the symmetry-breaking field on the metric is computed to second order. Consistency with conventional (pseudo)Riemannian geometry is demonstrated. This background field is coupled to fermions via a spin-dependent CPT-violating coupling term of a type commonly considered in the Standard-Model Extension. The perturbations of various orbital trajectories are discussed. Specifically, a spin-dependent orbital velocity is found as well as a spin-dependent precession rate.
Cite
@article{arxiv.1911.02542,
title = {CPT-Violating Gravitational Orbital Perturbations},
author = {Don Colladay},
journal= {arXiv preprint arXiv:1911.02542},
year = {2019}
}
Comments
4 pages, proceedings for CPT19