Spin-orbit and tensor mean-field effects on spin-orbit splitting including self-consistent core polarizations
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.
Cite
@article{arxiv.0801.0924,
title = {Spin-orbit and tensor mean-field effects on spin-orbit splitting including self-consistent core polarizations},
author = {M. Zalewski and J. Dobaczewski and W. Satula and T. R. Werner},
journal= {arXiv preprint arXiv:0801.0924},
year = {2008}
}
Comments
15 pages, 7 figures, submitted to Physical Review C