Saturation in the Nuclear Matter Problem

Details Saturation in the Nuclear Matter Problem Saturation in the Nuclear Matter Problem

1992-10-12

arxiv.org/abs/nucl-th/9210010v1

Physics

Nuclear Physics

Nuclear Theory

16 pages text (latex), 2 figures (not included, available upon request) September 1992

Scientific paper

Once density-dependent meson masses are introduced into the nuclear many-body problem, conventional mechanisms for saturation no longer operate. We suggest that a loop correction, essentially the introduction of the axial vector coupling $g_A(\rho,k)$ as function of density $\rho$ and momentum $k$, can bring about saturation, and present schematic calculations to illustrate this. We find that a very small density-dependence in $g_A$ gives rise to a very large saturating effect on nuclear matter. In fact, this new saturation mechanism turns out to be more powerful than any of the conventional mechanisms.

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