Two-Pion Exchange Nucleon-Nucleon Potential: Model Independent Features

Details Two-Pion Exchange Nucleon-Nucleon Potential: Model Independent Features Two-Pion Exchange Nucleon-Nucleon Potential: Model Independent Features

1996-11-28

arxiv.org/abs/nucl-th/9611056v1

Nucl.Phys. A615 (1997) 391-416

Physics

Nuclear Physics

Nuclear Theory

16 pages, 9 embedded figures, Latex 2.09, Revtex.sty, epsf.sty

Scientific paper

10.1016/S0375-9474(97)00031-6

A chiral pion-nucleon amplitude supplemented by the HJS subthreshold coefficients is used to calculate the the long range part of the two-pion exchange nucleon-nucleon potential. In our expressions the HJS coefficients factor out, allowing a clear identification of the origin of the various contributions. A discussion of the configuration space behaviour of the loop integrals that determine the potential is presented, with emphasis on cancellations associated with chiral symmetry. The profile function for the scalar-isoscalar component of the potential is produced and shown to disagree with those of several semi-phenomenological potentials.

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