Properties of isomeric states and the πd3/2-vi13/2 multiplet in194Au

Autor: Pakkanen, A., Piiparinen, M., Kortelahti, M., Komppa, T., Komu, R., Äystö, J.
Zdroj: Zeitschrift für Physik A Hadrons and Nuclei; September 1977, Vol. 282 Issue: 3 p277-283, 7p
Abstrakt: The level structure of194Au has been studied by observing prompt and delayed?-rays following194Pt(p,n) and195Pt(p,2n) reactions. The conversion electron and?-ray spectra from the decay of the 0.42s (10-) and 0.60s (5+) isomers at 476 keV and 107.4 keV, respectively, have been measured using the He-jet method. The half-lives of the 6+ (278.2 keV, 1.1±0.4 ns), 7+ (224.6 keV, 2.6±0.2 ns) and 8+ (406.8 keV, 2.9±0.4 ns) members of thepd3/2-vi13/2 multiplet have been obtained from the time distributions between cyclotron beam pulses and?-rays depopulating these levels. A calculation made assuming a pure two-particle configuration for the multiplet predicts very well theB(E2) values for the transitions between the levels of this multiplet but the calculatedB(M1) values are not in agreement with experimental results.
Databáze: Supplemental Index