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arXiv · 0704.1229

High-precision covariant one-boson-exchange potentials for np scattering below 350 MeV

Franz Gross·Alfred Stadler
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Abstract

All realistic potential models for the two-nucleon interaction are to some extent based on boson exchange. However, in order to achieve an essentially perfect fit to the scattering data, characterized by a chi2/Ndata ~ 1, previous potentials have abandoned a pure one boson-exchange mechanism (OBE). Using a covariant theory, we have found a OBE potential that fits the 2006 world np data below 350 MeV with a chi2/Ndata = 1.06 for 3788 data. Our potential has fewer adjustable parameters than previous high-precision potentials, and also reproduces the experimental triton binding energy without introducing additional irreducible three-nucleon forces.

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Franz Gross, Alfred Stadler. 2007-11-02. High-precision covariant one-boson-exchange potentials for np scattering below 350 MeV. https://doi.org/10.1016/j.physletb.2007.10.028

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