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High-precision covariant one-boson-exchange potentials for 𝑛𝑝 scattering below 350 MeV
Gross, Franz Stadler, Alfred
Gross, Franz
Stadler, Alfred
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 χ2/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 χ2/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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2007
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http://creativecommons.org/licenses/by/4.0/
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Physics