Nuclear Many-Body Dynamics constrained by QCD and Chiral Symmetry

Details Nuclear Many-Body Dynamics constrained by QCD and Chiral Symmetry Nuclear Many-Body Dynamics constrained by QCD and Chiral Symmetry

2002-05-05

arxiv.org/abs/nucl-th/0205016v2

Eur.Phys.J. A17 (2003) 573-578

Physics

Nuclear Physics

Nuclear Theory

6 pages, 3 figures, to be published in European Physical Journal A

Scientific paper

10.1140/epja/i2003-10004-8

We present a novel description of nuclear many-body systems, both for nuclear matter and finite nuclei, emphasizing the connection with the condensate structure of the QCD ground state and spontaneous chiral symmetry breaking. Lorentz scalar and vector mean-fields are introduced in accordance with QCD sum rules. Nuclear binding arises from pionic fluctuations, using in-medium chiral perturbation theory up to three-loop order. Ground state properties of $^{16}$O and $^{40}$Ca are calculated. The built-in QCD constraints reduce the number of input parameters significantly in comparison with purely phenomenological relativistic mean-field approaches.

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