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arXiv · 0705.1338

Lorentz-CPT violation, radiative corrections and finite temperature

F. A. Brito·J. R. Nascimento·E. Passos·A. Petrov
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Abstract

In this work we investigate the radiatively induced Chern-Simons-like terms in four-dimensions at zero and finite temperature. We use the approach of rationalizing the fermion propagator up to the leading order in the CPT-violating coupling $b_μ$. In this approach, we have shown that although the coefficient of Chern-Simons term can be found unambiguously in different regularization schemes at zero or finite temperature, it remains undetermined. We observe a correspondence among results obtained at finite and zero temperature.

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F. A. Brito, J. R. Nascimento, E. Passos, A. Petrov. 2007-06-01. Lorentz-CPT violation, radiative corrections and finite temperature. https://doi.org/10.1088/1126-6708%2F2007%2F06%2F016

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