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

Manoel R. Robilotta·Carlos A. da Rocha
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Abstract

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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Manoel R. Robilotta, Carlos A. da Rocha. 1996-11-28. Two-Pion Exchange Nucleon-Nucleon Potential: Model Independent Features. https://doi.org/10.1016/s0375-9474(97)00031-6

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