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arXiv · 0801.0924

Spin-orbit and tensor mean-field effects on spin-orbit splitting including self-consistent core polarizations

M. Zalewski·J. Dobaczewski·W. Satula·T. R. Werner
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Abstract

A new strategy of fitting the coupling constants of the nuclear energy density functional is proposed, which shifts attention from ground-state bulk to single-particle properties. The latter are analyzed in terms of the bare single-particle energies and mass, shape, and spin core-polarization effects. Fit of the isoscalar spin-orbit and both isoscalar and isovector tensor coupling constants directly to the f5/2-f7/2 spin-orbit splittings in 40Ca, 56Ni, and 48Ca is proposed as a practical realization of this new programme. It is shown that this fit requires drastic changes in the isoscalar spin-orbit strength and the tensor coupling constants as compared to the commonly accepted values but it considerably and systematically improves basic single-particle properties including spin-orbit splittings and magic-gap energies. Impact of these changes on nuclear binding energies is also discussed.

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M. Zalewski, J. Dobaczewski, W. Satula, T. R. Werner. 2008-01-07. Spin-orbit and tensor mean-field effects on spin-orbit splitting including self-consistent core polarizations. https://doi.org/10.1103/physrevc.77.024316

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