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DOE OSTI · 21362046

Recent Progress in Shell-Model Calculations for pfg-shell Nuclei

Honma, M·Otsuka, T·Mizusaki, T·Hjorth-Jensen, M
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Abstract

The structure of upper pf-shell nuclei is studied by the nuclear shell model, taking a model space consisting of four spherical single-particle orbits p{sub 3/2}, f{sub 5/2}, p{sub 1/2} and g{sub 9/2}. The effective interaction JUN45 is used, which is obtained by modifying empirically the renormalized G-matrix interaction. The oblate-prolate shape coexistence in {sup 68}Se is predicted consistently with the experimental observations, indicating the applicability of the shell model to the cases with moderate deformation. The calculated high-spin band structure highlights the important role played by the g{sub 9/2} orbit. The appearance of the j{sub p}-j{sub n} multiplets in {sup 88}Y is successfully described except for a few cases such as the 1{sub 1}{sup +} state, suggesting the good property of the effective proton-neutron interaction inherited from the renormalized G-matrix.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSANGULAR MOMENTUMBARYON-BARYON INTERACTIONSBETA DECAY RADIOISOTOPESBETA-PLUS DECAY RADIOISOTOPESDAYS LIVING RADIOISOTOPESDEFORMED NUCLEIELECTRON CAPTURE RADIOISOTOPESEVEN-EVEN NUCLEIG MATRIXHADRON-HADRON INTERACTIONSINTERACTIONSINTERMEDIATE MASS NUCLEIISOMERIC TRANSITION ISOTOPESISOTOPESMATHEMATICAL MODELSMATRICESMILLISECONDS LIVING RADIOISOTOPESMINUTES LIVING RADIOISOTOPESMULTIPLETSNUCLEAR MODELSNUCLEINUCLEON-NUCLEON INTERACTIONSODD-ODD NUCLEIORBITSPARTICLE INTERACTIONSPARTICLE PROPERTIESPROTON-NEUTRON INTERACTIONSPROTON-NUCLEON INTERACTIONSQUADRUPOLE MOMENTSRADIOISOTOPESSELENIUM 68SELENIUM ISOTOPESSHELL MODELSSPINYTTRIUM 88YTTRIUM ISOTOPES

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Honma, M, Otsuka, T, Mizusaki, T, Hjorth-Jensen, M. 2010-05-12. Recent Progress in Shell-Model Calculations for pfg-shell Nuclei. https://doi.org/10.1063/1.3442627

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