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Observation of Ni-54: Cross-conjugate symmetry in f(7/2) mirror energy differences
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2006 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 97, no 15, 152501- p.Article in journal (Refereed) Published
Abstract [en]

Gamma decays from excited states up to J(pi)=6(+) in the N=Z-2 nucleus Ni-54 have been identified for the first time. Level energies are compared with those of the isobars Co-54 and Fe-54 and of the cross-conjugate nuclei of mass A=42. The good but puzzling f(7/2) cross-conjugate symmetry in mirror and triplet energy differences is analyzed. Shell model calculations reproduce the new data but the necessary nuclear charge-dependent phenomenology is not fully explained by modern nucleon-nucleon potentials.

Place, publisher, year, edition, pages
2006. Vol. 97, no 15, 152501- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-154212DOI: 10.1103/PhysRevLett.97.152501ISI: 000241247700025OAI: oai:DiVA.org:uu-154212DiVA: diva2:419653
Available from: 2011-05-27 Created: 2011-05-27 Last updated: 2011-05-27Bibliographically approved

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