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Nonminimal Lorentz-Violating Effects in Photon Physics

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Author(s):
Ferrari, Alysson Pablo ; Kostelecky, VA
Total Authors: 2
Document type: Journal article
Source: PROCEEDINGS OF THE SEVENTH MEETING ON CPT AND LORENTZ SYMMETRY; v. N/A, p. 4-pg., 2017-01-01.
Abstract

We study an extension of QED involving a light pseudoscalar (an axion-like particle), together with a very massive fermion which has Lorentz-violating interactions with the photon and the pseudoscalar, including a nonminimal Lorentz-violating coupling. We investigate the low energy effective action for this model, after integration over the fermion field, and show that interesting results are obtained, such as the generation of a correction to the standard coupling between the axion-like particle and the photon, as well as Lorentz-violating effects in the interaction energy involving electromagnetic sources such as pointlike charges, steady line currents and Dirac strings. (AU)

FAPESP's process: 14/24672-0 - Symmetries and physics beyond the standard model
Grantee:Alysson Fábio Ferrari
Support Opportunities: Regular Research Grants
FAPESP's process: 13/22079-8 - Physics of particles and fields: standard model and its extensions
Grantee:Adriano Antonio Natale
Support Opportunities: Research Projects - Thematic Grants