Skyrmions and the pion mass
High Energy Physics - Phenomenology
2010-04-05 v2 High Energy Physics - Theory
Abstract
We present numerical evidence that suggests the introduction of a non-zero pion mass might dramatically affect the structure of minimal energy Skyrmions. It appears that the shell-like Skyrmions which are the minima when the pions are massless can fail to be minimal energy bound states for particular baryon numbers, with a strong dependence upon the value of the pion mass. The effects of a pion mass may include the replacement of shell-like configurations with crystal chunks and the loss of shell-like bound states with baryon numbers five and eight; which is in agreement with expectations based on real nuclei.
Cite
@article{arxiv.hep-ph/0410157,
title = {Skyrmions and the pion mass},
author = {Richard Battye and Paul Sutcliffe},
journal= {arXiv preprint arXiv:hep-ph/0410157},
year = {2010}
}
Comments
17 pages, including 8 figures. Version to appear in Nucl.Phys.B