Saturation in the Nuclear Matter Problem

G. E. Brown; R. Machleidt

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Saturation in the Nuclear Matter Problem

G. E. Brown·R. Machleidt

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Abstract

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 $g_A(ρ,k)$ as function of density $ρ$ 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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G. E. Brown, R. Machleidt. 1992-10-12. Saturation in the Nuclear Matter Problem. https://arxiv.org/abs/nucl-th/9210010

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