The anapole moment in scalar quantum electrodynamics
High Energy Physics - Phenomenology
2015-05-18 v1
Abstract
The anapole moment of a charged scalar particle is studied in a model independent fashion, using the effective Lagrangian technique, as well as radiatively within the context of scalar quantum electrodynamics (SQED). It is shown that this gauge structure is characterized by a non renormalizable interaction, which is radiatively generated at the one--loop. It is found that the resulting anapole moment for off-shell particles, though free of ultraviolet divergences, is gauge dependent and thus it is not a physical observable. We also study some of its kinematical limits. In particular, it is shown that its value comes out to be zero when all particles are on--shell.
Cite
@article{arxiv.1002.3184,
title = {The anapole moment in scalar quantum electrodynamics},
author = {A. Bashir and Y. Concha-Sanchez and M. E. Tejeda-Yeomans and J. J. Toscano},
journal= {arXiv preprint arXiv:1002.3184},
year = {2015}
}
Comments
4 pages, 1 figure