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The $^3S_1-^3D_1$ effective-range parameters of some realistic nucleon-nucleon potentials

W. van Dijk·M. W. Kermode·D-C Zheng
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Abstract

We consider the $P$- and $Q$-shape parameters in the eigenphase and `bar' phase shift representations for the two Reid potentials and the more recent Moscow potential. The values of these parameters were obtained from integrals of the zero-energy wave function in a similar manner to that for the effective range. Such expressions for the shape parameters yield more reliable numerical values of the shape parameter than those obtained by least-mean-square or polynomial fits. We show that the eigenphase representation is more meaningful than the `bar' phase shift representation and that the variation in the values of $P_α$ in the models may be of significance.

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W. van Dijk, M. W. Kermode, D-C Zheng. 1993-02-18. The $^3S_1-^3D_1$ effective-range parameters of some realistic nucleon-nucleon potentials. https://doi.org/10.1103/physrevc.47.1898

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