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arXiv · 2406.12987

Derivative four-fermion model, effective action and bumblebee generation

R. Araujo·T. Mariz·J. R. Nascimento·A. Yu. Petrov
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Abstract

In this paper, we study the one-loop effective potential of a derivative four-fermion model. As a result, an exact bumblebee-like potential is radiatively generated. Afterwards, we generalize our study for a finite temperature case and explicitly demonstrate the possibility of phase transitions allowing for the restoration of the Lorentz symmetry. We also investigate the low-energy effective action, from which we obtain the usual kinetic term and the corresponding bumblebee potential.

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R. Araujo, T. Mariz, J. R. Nascimento, A. Yu. Petrov. 2024-06-18. Derivative four-fermion model, effective action and bumblebee generation. https://doi.org/10.1140/epjc%2Fs10052-024-13391-4

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