Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-01-07
Phys.Rev.C77:024316,2008
Physics
Nuclear Physics
Nuclear Theory
15 pages, 7 figures, submitted to Physical Review C
Scientific paper
10.1103/PhysRevC.77.024316
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.
Dobaczewski Jacek
Satula Wojciech
Werner Tomasz R.
Zalewski Mikolaj
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