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Mean-field study of single-particle spectra evolution in Z=14 and N=28 chains
Tarpanov D., Liang H., Van Giai N., Stoyanov C.
Physical Review C 77 (2008) 054316 - http://hal.in2p3.fr/in2p3-00262395
Physique/Physique Nucléaire Théorique
Mean-field study of single-particle spectra evolution in Z=14 and N=28 chains
D. Tarpanov1, 2, H. Liang1, 3, N. Van Giai1, C. Stoyanov2
1 :  IPNO - Institut de Physique Nucléaire d'Orsay
CNRS : UMR8608 – IN2P3 – Université Paris XI - Paris Sud
IPN - 15, rue Georges Clemenceau - 91406 ORSAY CEDEX
2 :  Institute for Nuclear Research and Nuclear Energy
Institute for nuclear Research and Nuclear Energy
1784 SOFIA
3 :  State Key Laboratory of Nuclear Physics & Technology, School of Physics
Peking University
BEIJING 100871
We study the mechanisms which reduce the proton 1d(3/2)-1d(5/2) spin-orbit splitting and the neutron 1f(7/2) subshell closure in 42Si. We use various self-consistent mean field models: non-relativistic Skyrme-Hartree-Fock and relativistic density-dependent Hartree-Fock. Special attention is devoted to the influence of a tensor component in the effective interaction. It is found that the tensor force indeed governs the reduction of the 1d proton spin-orbit splitting. On the other hand, the reduction of the neutron 1f(7/2) subshell closure is not clearly related to the tensor force.

Articles dans des revues avec comité de lecture
Physical Review C (Phys. Rev. C)
Publisher American Physical Society
ISSN 0556-2813 (eISSN : 1089-490X)

Submited in PRC. 6 pages, 4 figures, 2 tables
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