A CPT-even Lorentz-violating nonminimal coupling between fermions and photons
High Energy Physics - Theory
2017-08-23 v1
Abstract
We propose a CPT-even and Lorentz-violating dimension-five nonminimal coupling between fermionic and gauge fields, involving the CPT-even and Lorentz-violating gauge tensor of the Standard-Model Extension. This nonminimal coupling modifies the nonrelativistic regime of Dirac particles, inducing new effects such as an electric-Zeeman-like spectrum splitting and an anomalous-like contribution to the electron magnetic moment. These new effects allow to constrain the magnitude of this nonminimal coupling in 1 part in
Cite
@article{arxiv.1309.3928,
title = {A CPT-even Lorentz-violating nonminimal coupling between fermions and photons},
author = {R. Casana and M. M. Ferreira and E. Passos F. E. P. Dos Santos and E. O. Silva},
journal= {arXiv preprint arXiv:1309.3928},
year = {2017}
}
Comments
Presented at the Sixth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 17-21, 2013