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

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

1993-02-18

arxiv.org/abs/nucl-th/9302008v1

Physics

Nuclear Physics

Nuclear Theory

16 pages, REVTEX, McM/Th-93-01

Scientific paper

10.1103/PhysRevC.47.1898

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 $P_\alpha$ in the models may be of significance.

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