eta' meson under partial restoration of chiral symmetry in nuclear medium
Nuclear Theory
2012-12-17 v1 High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
We shed light upon the eta' mass in nuclear matter in the context of partial restoration of chiral symmetry, pointing out that the U_{A}(1) anomaly effects causes the eta'-eta mass difference necessarily through the chiral symmetry breaking. As a consequence, it is expected that the eta' mass is reduced by order of 100 MeV in nuclear matter where partial restoration of chiral symmetry takes place. The discussion given here is based on Ref. [1].
Keywords
Cite
@article{arxiv.1208.0982,
title = {eta' meson under partial restoration of chiral symmetry in nuclear medium},
author = {Daisuke Jido and Hideko Nagahiro and Satoru Hirenzaki and Shuntaro Sakai},
journal= {arXiv preprint arXiv:1208.0982},
year = {2012}
}
Comments
3 pages, 2 figures. Contribution to Meson2012