Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/50503
Title: Impossibility of obtaining a CP-violating Euler-Heisenberg effective theory from a viable modification of QED
Keywords: Euler-Heisenberg action
QED
Field theory
Issue Date: 28-Apr-2022
Publisher: Springer
Citation: GHASEMKHANI, M. et al. Impossibility of obtaining a CP-violating Euler-Heisenberg effective theory from a viable modification of QED. European Physical Journal C., Particles and Fields, [S.l.], v. 82, Apr. 2022. DOI: 10.1140/epjc/s10052-022-10351-8.
Abstract: In this paper, we examine the CP-violating term of the Euler–Heisenberg action. We focus in the aspects related with the generation of such a term from a QED-like model in terms of the effective action approach. In particular, we show that the generation of the CP-violating term is closely related with both of vector and axial fermionic bilinears. Although, these anomalous models are not a viable extension of QED, we argue that the CP-violating term in the photon sector is obtained only from this class of models, and not from any fundamental field theory.
URI: https://link.springer.com/article/10.1140/epjc/s10052-022-10351-8
http://repositorio.ufla.br/jspui/handle/1/50503
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