Lorentz-CPT violation, radiative corrections and finite temperature

Details Lorentz-CPT violation, radiative corrections and finite temperature Lorentz-CPT violation, radiative corrections and finite temperature

2007-05-09

arxiv.org/abs/0705.1338v2

JHEP 0706:016,2007

Physics

High Energy Physics

High Energy Physics - Theory

To appear in JHEP, 10 pages, 1 eps figure, minor changes and references added

Scientific paper

10.1088/1126-6708/2007/06/016

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 $b_\mu$. 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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