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Toward a Spin- and Parity-Independent Nucleon-Nucleon Potential

J. -M. Sparenberg
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Abstract

A supersymmetric inversion method is applied to the singlet $^1S_0$ and $^1P_1$ neutron-proton elastic phase shifts. The resulting central potential has a one-pion-exchange (OPE) long-range behavior and a parity-independent short-range part; it fits inverted data well. Adding a regularized OPE tensor term also allows the reproduction of the triplet $^3P_0$, $^3P_1$ and $^3S_1$ phase shifts as well as of the deuteron binding energy. The potential is thus also spin-independent (except for the OPE part) and contains no spin-orbit term. These important simplifications of the neutron-proton interaction are shown to be possible only if the potential possesses Pauli forbidden bound states, as proposed in the Moscow nucleon-nucleon model.

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J. -M. Sparenberg. 2001-05-24. Toward a Spin- and Parity-Independent Nucleon-Nucleon Potential. https://doi.org/10.1209/epl%2Fi2002-00108-7

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