Lifetimes of low-spin excited states in 98Zr were measured using the recoil-distance Doppler-shift technique and the Doppler-shift attenuation method. The nucleus of interest was populated in a 96Zr(18O,16O)98Zr two-neutron transfer reaction at the Cologne FN Tandem accelerator. Lifetimes of six low-spin excited states, of which four are unknown, were measured. The deduced B(E2) values were compared with Monte Carlo shell model and interacting boson model with configuration mixing calculations. Both approaches reproduce well most of the data but leave challenging questions regarding the structure of some low lying states.
@article{arxiv.2103.01642,
title = {Tests of collectivity in $^{98}$Zr by absolute transition rates},
author = {V. Karayonchev and J. Jolie and A. Blazhev and A. Dewald and A. Esmaylzadeh and C. Fransen and G. Häfner and L. Knafla and J. Litzinger and C. Müller-Gatermann and J. -M. Régis and K. Schomacker and A. Vogt and N. Warr and A. Leviatan and N. Gavrielov},
journal= {arXiv preprint arXiv:2103.01642},
year = {2021}
}
Comments
13 pages, 12 figures, 3 tables, accepted for publication in Physical Review C