On the electromagnetic hadron current derived from the gauged Wess-Zumino-Witten action
High Energy Physics - Phenomenology
2011-08-08 v1 High Energy Physics - Theory
Nuclear Theory
Abstract
In a recent paper, based on the Skyrme model with the Wess-Zumino-Witten term including electromagnetism, Eto et al. pointed out an intriguing possibility that the Gell-Mann-Nishijima relation is corrected under the presence of back-ground electromagnetic fields, thereby being led to the conclusion that even a neutron acquires non-zero net charge in external magnetic fields. We point out that this remarkable conclusion is inseparably connected with an unwelcome feature of the gauged Wess-Zumino-Witten action, i.e. the non-conservation of source current of Maxwell equation.
Keywords
Cite
@article{arxiv.1108.1236,
title = {On the electromagnetic hadron current derived from the gauged Wess-Zumino-Witten action},
author = {Masashi Wakamatsu},
journal= {arXiv preprint arXiv:1108.1236},
year = {2011}
}
Comments
12 pages, no figure