Abstract
An investigation of low-lying energy levels of , , and has been made via β decay, especially of those levels in the = gamma band in the even-even nuclei. The radioactive parent nuclei were produced by the Ti,xpyn) and Si,xpyn) reactions with bombarding energies of 170 to 240 MeV. An isotope separator enabled A=134 mass identification. Level schemes of these five nuclei were constructed from γ-γ-t coincidence data. The β-decay half-lives of the parent nuclei, , , , , and , were determined to be 40±4, 96±18, 8.8±0.8, 23±2, and 9.3±0.8 s, respectively. The suitability of the proton-neutron interaction boson model in describing , , , and is supported by the comparison of experimental relative E2 transition probabilities with proton-neutron interaction boson model predictions.
- Received 18 April 1990
DOI:https://doi.org/10.1103/PhysRevC.42.1267
©1990 American Physical Society