Experimental evidence for 56Ni-core breaking from the low-spin structure of the N=Z nucleus 58Cu

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dc.creatorLisetskiy, A. F.
dc.creatorPietralla, N.
dc.creatorHonma, M.
dc.creatorSchmidt, A.
dc.creatorSchneider, I.
dc.creatorGade, A.
dc.creatorvon Brentano, P.
dc.creatorOtsuka, T.
dc.creatorMizusaki, T.
dc.creatorBrown, B. A.
dc.date2003-06-23
dc.date.accessioned2026-07-07T10:30:26Z
dc.date.available2026-07-07T10:30:26Z
dc.descriptionLow-spin states in the odd-odd N=Z nucleus 58Cu were investigated with the 58Ni(p,n gamma)58Cu fusion evaporation reaction at the FN-tandem accelerator in Cologne. Seventeen low spin states below 3.6 MeV and 17 new transitions were observed. Ten multipole mixing ratios and 17 gamma-branching ratios were determined for the first time. New detailed spectroscopic information on the 2+,2 state, the Isobaric Analogue State (IAS) of the 2+,1,T=1 state of 58Ni, makes 58Cu the heaviest odd-odd N=Z nucleus with known B(E2;2+,T=1 --> 0+,T=1) value. The 4^+ state at 2.751 MeV, observed here for the first time, is identified as the IAS of the 4+,1,T=1 state in 58Ni. The new data are compared to full pf-shell model calculations with the novel GXPF1 residual interaction and to calculations within a pf5/2 configurational space with a residual surface delta interaction. The role of the 56Ni core excitations for the low-spin structure in 58Cu is discussed.
dc.description15 pages, 7 figures, submitted to Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/nucl-ex/0306032
dc.identifierhttp://arxiv.org/abs/nucl-ex/0306032
dc.identifierPhys.Rev.C68:034316,2003
dc.identifierdoi:10.1103/PhysRevC.68.034316
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178131
dc.subjectNuclear Experiment
dc.subjectNuclear Theory
dc.titleExperimental evidence for 56Ni-core breaking from the low-spin structure of the N=Z nucleus 58Cu
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