Dynamical Lorentz symmetry breaking in a 4D massless four-fermion model
High Energy Physics - Theory
2017-10-04 v2
Abstract
In this paper, we study the spontaneous Lorentz symmetry breaking for a four-dimensional massless four-fermion model. Our methodology is based on use of the rationalized propagator. We show that a bumblebee potential arises as a result of one-loop calculations and displays nontrivial minima. Also we demonstrate that a phase transition restoring Lorentz invariance can occur at a finite temperature.
Keywords
Cite
@article{arxiv.1707.07778,
title = {Dynamical Lorentz symmetry breaking in a 4D massless four-fermion model},
author = {J. F. Assuncao and T. Mariz and J. R. Nascimento and A. Yu. Petrov},
journal= {arXiv preprint arXiv:1707.07778},
year = {2017}
}
Comments
12 pages, version accepted to PRD