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arXiv · 2306.06959

Lorentz-violating extension of scalar QED at finite temperature

M. C. Araújo·J. Furtado·R. V. Maluf
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Abstract

In this work, we calculate the one-loop self-energy corrections to the gauge field in scalar electrodynamics modified by Lorentz-violating terms within the framework of the standard model extension (SME). We focus on both $CPT$-even and $CPT$-odd contributions. The kinetic part of the scalar sector contains a $CPT$-even symmetric Lorentz-breaking tensor, and the interaction terms include a vector contracted with the usual covariant derivative in a gauge-invariant manner. We computed the one-loop radiative corrections using dimensional regularization for both the $CPT$-even and $CPT$-odd cases. Additionally, we employed the Matsubara formalism to account for finite temperature effects.

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M. C. Araújo, J. Furtado, R. V. Maluf. 2023-06-12. Lorentz-violating extension of scalar QED at finite temperature. https://doi.org/10.1016/j.physletb.2023.138064

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