arXiv:nucl-th/0105022AbstractReferencesReviewsResources
The Stability of Nuclear Matter in the Nambu-Jona-Lasinio Model
Published 2001-05-08Version 1
Using the Nambu-Jona-Lasinio model to describe the nucleon as a quark-diquark state, we discuss the stability of nuclear matter in a hybrid model for the ground state at finite nucleon density. It is shown that a simple extension of the model to simulate the effects of confinement leads to a scalar polarizability of the nucleon. This, in turn, leads to a less attractive effective interaction between the nucleons, helping to achieve saturation of the nuclear matter ground state. It is also pointed out that that the same effect naturally leads to a suppression of ``Z-graph'' contributions with increasing scalar potential.
Comments: 52 pages, 15 figures
Journal: Nucl.Phys.A696:138-172,2001
Keywords: nambu-jona-lasinio model, nuclear matter ground state, finite nucleon density, scalar polarizability, achieve saturation
Tags: journal article
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