Enhancement of $B(E2)$ and low excitation of the second 0$^+$ state near N=40 in Ge isotopes

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dc.creatorHasegawa, M.
dc.creatorMizusaki, T.
dc.creatorKaneko, K.
dc.creatorSun, Y.
dc.date2007-02-23
dc.date.accessioned2026-07-07T10:22:45Z
dc.date.available2026-07-07T10:22:45Z
dc.descriptionThe long-standing problem of dramatic structure change near N=40 in Ge isotopes is investigated by means of large-scale shell model calculation. The analysis of simulated calculations suggests a possible understanding of the problem in terms of rapid increase in the $g_{9/2}$ proton and neutron occupation. The observed variation in excitation of the second $0^+$ state in $^{70,72,74}$Ge appears to correlate closely with the $g_{9/2}$ occupations induced by strong proton-neutron interactions. The enhancement of the $g_{9/2}$ occupancies is probably due to correlations in the $1g2d3s$ shell.
dc.description11 pages, 5 figures, accepted for publication in Nuclear Physics A
dc.identifierhttps://arxiv.org/abs/nucl-th/0702071
dc.identifierhttp://arxiv.org/abs/nucl-th/0702071
dc.identifierNucl.Phys.A789:46-54,2007
dc.identifierdoi:10.1016/j.nuclphysa.2007.02.012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175627
dc.subjectNuclear Theory
dc.titleEnhancement of $B(E2)$ and low excitation of the second 0$^+$ state near N=40 in Ge isotopes
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