Abstract
Background: The Cd isotopes are well studied, but experimental data for the rare isotopes are sparse. At energies above the Coulomb barrier, higher states become accessible.
Purpose: Remeasure and supplement existing lifetimes and magnetic moments of low-lying states in .
Methods: In an inverse kinematics reaction, a beam impinging on a target was used to Coulomb excite the projectiles. The high recoil velocities provide a unique opportunity to measure factors with the transient-field technique and to determine lifetimes from lineshapes by using the Doppler-shift-attenuation method. Large-scale shell-model calculations were carried out for .
Results: The factors of the and states in were measured to be and . A lineshape analysis yielded lifetimes in disagreement with published values. The new results are and . The mean life was determined from the fully-Doppler-shifted line. Mean lives of and were determined for the first time.
Conclusions: The newly measured of is found to be only 59% of the . This difference cannot be explained by either shell-model or collective-model calculations.
- Received 1 August 2016
DOI:https://doi.org/10.1103/PhysRevC.94.034303
©2016 American Physical Society