Does The 3N-Force Have A Hard Core?

Details Does The 3N-Force Have A Hard Core? Does The 3N-Force Have A Hard Core?

1996-01-17

arxiv.org/abs/nucl-th/9601025v1

Phys.Rev.C53:1510-1518,1996

Physics

Nuclear Physics

Nuclear Theory

16 pages REVTeX + 3 ps figs

Scientific paper

10.1103/PhysRevC.53.1510

The meson-nucleon dynamics that generates the hard core of the RuhrPot two-nucleon interaction is shown to vanish in the irreducible 3N force. This result indicates a small 3N force dominated by conventional light meson-exchange dynamics and holds for an arbitrary meson-theoretic Lagrangian. The resulting RuhrPot 3N force is defined in the appendix. A completely different result is expected when the Tamm-Dancoff/Bloch-Horowitz procedure is used to define the NN and 3N potentials. In that approach, (e.g. full Bonn potential) both the NN {\it and} 3N potentials contain non-vanishing contributions from the coherent sum of meson-recoil dynamics and the possibility of a large hard core requiring explicit calculation cannot be ruled out.

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