Modern nucleon-nucleon potentials and symmetry energy in infinite matter

Abstract

We study the symmetry energy in infinite nuclear matter employing a non-relativistic Brueckner-Hartree-Fock approach and using various new nucleon-nucleon (NN) potentials, which fit np and pp scattering data very accurately. The potential models we employ are the recent versions of the Nijmegen group, Nijm-I, Nijm-II and Reid93, the Argonne $V_{18}$ potential and the CD-Bonn potential. All these potentials yield a symmetry energy which increases with density, resolving a discrepancy that existed for older NN potentials. The origin of remaining differences is discussed.

17 pages, 10 figures included, elsevier latex style epsart.sty

References in corpus (2)

• Spin-Isospin Structure and Pion Condensation in Nucleon Matter
• Equation of state of asymmetric nuclear matter and collisions of neutron-rich nuclei

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• Lowest Order Constrained Variational Calculation of the Polarized Nuclear Matter with the Modern $A{V}_{18}$ Potential
• Isospin symmetry breaking nucleon-nucleon potentials and nuclear structure
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• Nuclear symmetry energy in presence of hyperons in the nonrelativistic Thomas-Fermi approximation
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• Origins and Impacts of High-Density Symmetry Energy