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DOE OSTI · 21499342

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

Kaneko, Kazunari·Yang, Sun·Mizusaki, Takahiro·Hasegawa, Munetake
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Abstract

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 {sup 43}S, {sup 46}S, and {sup 47}Ar. In particular, the erosion of the N=28 shell closure in {sup 42}Si 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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73 NUCLEAR PHYSICS AND RADIATION PHYSICSARGON 47ARGON ISOTOPESBARYONSBETA DECAY RADIOISOTOPESBETA-MINUS DECAY RADIOISOTOPESCOMPUTERIZED SIMULATIONCONFIGURATIONELEMENTARY PARTICLESENERGY LEVELSEVEN-EVEN NUCLEIEVEN-ODD NUCLEIFERMIONSHADRONSINTERACTIONSINTERMEDIATE MASS NUCLEIISOTOPESMASSMATHEMATICAL MODELSMONOPOLESNEUTRON-RICH ISOTOPESNEUTRONSNUCLEAR MODELSNUCLEINUCLEONSRADIOISOTOPESSHELL MODELSSILICON 42SILICON ISOTOPESSIMULATIONSPHERICAL CONFIGURATIONSULFUR 43SULFUR 46SULFUR ISOTOPES

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Kaneko, Kazunari, Yang, Sun, Mizusaki, Takahiro, Hasegawa, Munetake. 2011-01-15. Shell-model study for neutron-rich sd-shell nuclei. https://doi.org/10.1103/physrevc.83.014320

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