1. Hindered decays from a non-yrast four-quasiparticle isomer in 164Er.
- Author
-
Swan, T. P. D., Walker, P. M., Podolyák, Zs., Reed, M. W., Dracoulis, G. D., Lane, G. J., Kibédi, T., and Smith, M. L.
- Subjects
- *
MOLECULAR rotation , *RADIOACTIVE decay , *QUASIPARTICLES , *NUCLEAR isomers , *POTASSIUM isotopes , *GROUND state (Quantum mechanics) ,ERBIUM isotopes - Abstract
The half-life of a Kπ = 12+ isomer in 164Er has been measured to be 68(2) ns, and new decay pathways have been identified. These include highly K-forbidden y-ray transitions directly to the ground-state rotational band, with reduced hindrance values that can be compared with those found for heavier nuclides. The new data support the interpretation that the level density is a key variable in determining K-forbidden transition rates. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF