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Three-nucleon interaction in nuclei, nuclear and neutron matter

  • V. R. Pandharipande
Plenary Session — Joint Session
Part of the Lecture Notes in Physics book series (LNP, volume 260)

Abstract

We review the effect of three-nucleon interactions on nuclei, nuclear and neutron matter, and neutron stars. There are three pairs and only one triplet in the three-nucleon system, while there are six pairs and four triplets in the four-nucleon system. Such general considerations suggest that three-nucleon interactions may have a relatively larger contribution in systems that have a large number of nucleons at high density. We review the results obtained with realistic two-nucleon interactions, and show that these underbind light nuclei, and give too large an equilibrium density for nuclear matter. A realistic model of the three-nucleon interaction, having an attractive two-pion exchange part and a repulsive shorter-ranged part is used. Its strengths are determined by fitting binding energies of light nuclei and empirical properties of nuclear matter. It is shown that the three-nucleon interaction makes the equation of state of nuclear and neutron matter stiff at high densities, and that this effect has measureable consequences in heavy-ion reactions and astrophysics.

Keywords

Neutron Star Nuclear Matter Variational Calculation Light Nucleus Charge Radius 
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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • V. R. Pandharipande
    • 1
  1. 1.Department of PhysicsUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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