Abstract
We report on the measurement of level energies, lifetimes, γ-ray intensities, and angular distributions in , obtained in the reactions Ar,3p) and Ca,α3p). The g factor of the 241 keV isomeric state (τ=50 ns) was determined to be g=1.31(9) from the Larmor precession in an external magnetic field. The fully aligned members of a rotationally aligned band were identified up to spin ; the E2 transition strengths indicate a large prolate deformation decreasing from =0.37(4) to =0.33 at rotational frequency ħω≊0.45 MeV. The negative parity yrast bands with signatures α=±1/2 were established up to a probable spin of . The α=+1/2 yrast band shows a one quasiparticle to three quasiparticle band transition at the same frequency, probably associated with the alignment of two protons. The structure of , which is very similar to that of , has been interpreted with the Strutinsky-Bogolyubov cranking and deformed configuration mixing models.
- Received 10 July 1987
DOI:https://doi.org/10.1103/PhysRevC.36.2409
©1987 American Physical Society