Shell model study for neutron-rich sd-shell nuclei

Details Shell model study for neutron-rich sd-shell nuclei Shell model study for neutron-rich sd-shell nuclei

2011-01-08

arxiv.org/abs/1101.1571v1

Phys.Rev.C83:014320,2011

Physics

Nuclear Physics

Nuclear Theory

7 pages, 10 figures, accepted for publication in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.83.014320

The microscopic structure of neutron-rich sd-shell nuclei is investigated by using the spherical shell-model in the sd-pf valence space with the extended pairing plus quadrupole-quadrupole forces accompanied by the monopole interaction (EPQQM). The calculation reproduces systematically the known energy levels for even-even and odd-mass nuclei including the recent data for 43S, 46S and 47Ar. In particular, the erosion of the N=28 shell closure in 42Si can be explained. Our EPQQM results are compared with other shell-model calculations with the SDPF-NR and SDPF-U effective interactions.

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