Remarks on the Causality, Unitarity and Supersymmetric Extension of the Lorentz and CPT-Violating Maxwell-Chern-Simons Model

Abstract

The gauge-invariant Chern-Simons-type Lorentz- and CPT-breaking term is here re-assessed and issues like causality, unitarity, spontaneous gauge-symmetry breaking are investigated. Moreover, we obtain a minimal extension of such a system to a supersymmetric environment. We comment on resulting peculiar self-couplings for the gauge sector, as well as on background contribution for gaugino masses.

arXiv comment5 pages, NPB style, talk presented at "Renormalization Group and Anomalies in Gravity and Cosmology", Ouro Preto, Brazil, March 2003

References in corpus (3)

• Radiatively Induced Lorentz and CPT Violation in Electrodynamics
• Expectation Values, Lorentz Invariance, and CPT in the Open Bosonic String
• Causality and CPT violation from an Abelian Chern-Simons-like term

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