Coulomb excitation of Zn74,76

The first experiment using radioactive beams post-accelerated by the HIE-ISOLDE facility has enabled to obtain a precise set of B(E2) transition probabilities in neutron-rich Zn74,76 isotopes. The resulting B(E2; 21+→01+) values are consistent with those determined in earlier REX-ISOLDE measurements. While the B(E2; 41+→21+) transition probability in Zn76 is also in agreement with earlier Coulomb-excitation results, the value obtained for Zn74 is considerably lower. For the first time, a spectroscopic quadrupole moment of the 21+ state was measured for an exotic nucleus in this mass region. A detailed comparison is presented with large-scale shell-model and Monte Carlo shell-model calculations.5 MoreReceived 24 August 2022Revised 27 June 2023Accepted 26 July 2023DOI:https://doi.org/10.1103/PhysRevC.108.044305Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.Published by the American Physical SocietyPhysics Subject Headings (PhySH)Research AreasCoulomb excitationNuclear structure & decaysProperties59 ≤ A ≤ 89TechniquesNuclear data analysis & compilationRadioactive beamsShell modelSpectrometers & spectroscopic techniquesNuclear Physics