Where Have All the Goldstone Bosons Gone?
High Energy Physics - Theory
2015-06-18 v2 High Energy Physics - Phenomenology
Abstract
According to a commonly held view of spontaneously broken symmetry in gauge theories, troublesome Nambu-Goldstone bosons are effectively eliminated by turning into longitudinal modes of a massive vector meson. This note shows that this is not in fact a consistent view of the role of Nambu-Goldstone bosons in such theories. These particles necessarily appear as gauge excitations whenever they are formulated in a manifestly covariant gauge. The radiation gauge provides therefore the dual advantage of circumventing the Goldstone theorem and making evident the disappearance of these particles from the physical spectrum.
Keywords
Cite
@article{arxiv.1401.6924,
title = {Where Have All the Goldstone Bosons Gone?},
author = {G. S. Guralnik and C. R. Hagen},
journal= {arXiv preprint arXiv:1401.6924},
year = {2015}
}
Comments
4 pages; typo corrected