Phys. Rev. C 63, 021302 (2000) [4 pages]Striking harmony between the nuclear shell model and new experimental g factors and B(E2) values of even Ni isotopes
O. Kenn1, K.-H. Speidel1, R. Ernst1, J. Gerber2, N. Benczer-Koller3, G. Kumbartzki3, P. Maier-Komor4, and F. Nowacki5
High precision g factors and B(E2) values were obtained in measurements of the first 2+ states of 58-64Ni using the technique of projectile Coulomb excitation in combination with transient magnetic fields. The new results are well explained by large-scale shell model calculations in which, for 58-62Ni, up to t=5 nucleons are excited from the f7/2 shell into the remaining fp shell orbits. A complete calculation was carried out for 64Ni. The g factor of 58Ni is particularly surprising as it is small but definitely positive, a result which was not expected and therefore not considered in several earlier calculations. This observation can be explained by strong coupling of valence particles to an excited 56Ni core in accordance with recent Monte Carlo shell model calculations. ©2000 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevC.63.021302 [ Abstract | Previous article | Next article | Issue 2 ] |
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