Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2005-09-22
Phys.Rev. C73 (2006) 061304
Physics
Nuclear Physics
Nuclear Theory
4 pages. submitted to Phys. Rev. Lett
Scientific paper
10.1103/PhysRevC.73.061304
We perform a systematic shell-model and mean-field study of fully-aligned, high-spin f_{7/2}^{n} seniority isomers and d_{3/2}^{-1} f_{7/2}^{n+1} intruder states in the A~44 nuclei from the lower-fp shell. The shell-model calculations are performed in the full sdfp configuration space allowing 1p-1h cross-shell excitations. The self-consistent mean-field calculations are based on the Hartree-Fock approach with the Skyrme energy density functional that reproduces empirical Landau parameters. While there is a nice agreement between experimental and theoretical relative energies of fully-aligned states in N>Z nuclei, this is no longer the case for the N=Z systems. The remaining deviation from the data is attributed to the isoscalar proton-neutron correlations. It is also demonstrated that the Coulomb corrections at high spins noticeably depend on the choice of the energy density functional.
Dean David J.
Nazarewicz Witek
Satula Wojciech
Stoitcheva G.
Zalewski Mikolaj
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