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arXiv · 1707.07778

Dynamical Lorentz symmetry breaking in a 4D massless four-fermion model

J. F. Assuncao·T. Mariz·J. R. Nascimento·A. Yu. Petrov
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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.

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J. F. Assuncao, T. Mariz, J. R. Nascimento, A. Yu. Petrov. 2017-07-25. Dynamical Lorentz symmetry breaking in a 4D massless four-fermion model. https://doi.org/10.1103/physrevd.96.065021

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