Chiral Transition in QCD and Scalar Correlations
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We review recent developments in exploring possible precursory phenomena of partial restoration of chiral symmetry in nuclear medium by examining the spectral function in the scalar channel. We emphasize that the wave function renormalization of the pion in the medium plays an essential role to induce the decrease of the pion decay constant as the order parameter of chiral transition. We also show that the meson pole in the complex energy plane moves toward the origin as chiral symmetry is restored in hot and/or dense nuclear matter.
Cite
@article{arxiv.hep-ph/0307328,
title = {Chiral Transition in QCD and Scalar Correlations},
author = {Teiji Kunihiro},
journal= {arXiv preprint arXiv:hep-ph/0307328},
year = {2007}
}
Comments
Invited talk presented at International Symposium on ``Hadron Spectroscopy, Chiral Symmetry and Relativistic Description of Bound Systems", 24-26 February, 2003, Nihon Daigaku Kaikan, Ichigaya, Tokyo. 8 pages