arXiv:nucl-th/9810022·v2·Nuclear Theory
A Precursor of Chiral Symmetry Restoration in the Nuclear Medium
T. Hatsuda (Kyoto Univ.)🇯🇵 · T. Kunihiro (Ryukoku Univ.)🇯🇵 · H. Shimizu (Yamagata Univ.)🇯🇵
Abstract
Spectral enhancement near the 2m_{\pi} threshold in the I=J=0 channel in nuclei is shown to be a distinct signal of the partial restoration of chiral symmetry. The relevance of this phenomenon with the possible detection of 2\pi^{0} and 2\gamma in hadron-nucleus and photo-nucleus reactions is discussed.
Comments: Revtex, 4 pages, 3 eps figures, title and introduction changed, to appear in Phys. Rev. Lett