Striking harmony between the nuclear shell model and new experimental g factors and B(E2) values of even Ni isotopes - art. no. 021302

Citation
O. Kenn et al., Striking harmony between the nuclear shell model and new experimental g factors and B(E2) values of even Ni isotopes - art. no. 021302, PHYS REV C, 6302(2), 2001, pp. 1302
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C
ISSN journal
0556-2813 → ACNP
Volume
6302
Issue
2
Year of publication
2001
Database
ISI
SICI code
0556-2813(200102)6302:2<1302:SHBTNS>2.0.ZU;2-6
Abstract
High precision g factors and B(E2) values were obtained in measurements of the first 2(+) states of Ni58-64 using the technique of projectile Coulomb excitation in combination with transient magnetic fields. The new results a re well explained by large-scale shell model calculations in which. for Ni5 8-62, up to t = 5 nucleons are excited from the f(7/2) shell into the remai ning fp shell orbits. A complete calculation was carried out for Ni-64. The g factor of Ni-58 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 c oupling of valence particles to an excited Ni-56 core in accordance with re cent Monte Carlo shell model calculations.