Role of Chiral Symmetry in the Nuclear Many-Body Problem

Details Role of Chiral Symmetry in the Nuclear Many-Body Problem Role of Chiral Symmetry in the Nuclear Many-Body Problem

2001-09-18

arxiv.org/abs/nucl-th/0109052v1

Physics

Nuclear Physics

Nuclear Theory

Invited talk presented by W. Weise at the NATO Advanced Research Workshop: The Nuclear Many-Body Problem 2001, 2.-5.6., Brijun

Scientific paper

The role of chiral (pion) dynamics in nuclear matter is reviewed. Contributions to the energy per particle from one- and two-pion exchange are calculated systematically, and it is demonstrated that already at order $k^4_f$ in the Fermi momentum, two-pion exchange produces realistic nuclear binding together with very reasonable values for the compressibility and the asymmetry energy. Further implications of these results are discussed.

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