Partial restoration of chiral symmetry and pion in nuclear medium

Details Partial restoration of chiral symmetry and pion in nuclear medium Partial restoration of chiral symmetry and pion in nuclear medium

2011-08-31

arxiv.org/abs/1108.6144v1

Physics

Nuclear Physics

Nuclear Theory

6 pages, 4 figures. Contributions to the XIV International Conference on Hadron Spectroscopy (Hadron2011), 13-17 June 2011, Mu

Scientific paper

We discuss partial restoration of chiral symmetry in nuclear medium, which is realized as an effective reduction of the quark condensate in nuclear medium. We derive the in-medium Weinberg-Tomozawa relation. We also give a brief calculation of the in-medium quark condensate based on chiral perturbation theory. We conclude that the density dependence of the quark condensate beyond the linear density comes from the vertex correction of the chiral field insertion and nucleon correlations.

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