A Precursor of Chiral Symmetry Restoration in the Nuclear Medium
  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. 
T. Hatsuda (Kyoto Univ.), T. Kunihiro (Ryukoku Univ.), H. Shimizu   (Yamagata Univ.)