| Autor: |
Selič, H., Sadler, G., Khan, T., Lauppe, W., Lawin, H., Sistemich, K., Monnand, E., Blachot, J., Bocquet, J., Schussler, F. |
| Zdroj: |
Zeitschrift für Physik; 1979, Vol. 289 Issue 2, p197-210, 14p |
| Abstrakt: |
The β-decays ofY andZr have been investigated with the two recoil fission product separators JOSEF and LOHENGRIN. Half-lives of 1.51±0.08s and 2.1±0.1s respectively, have been determined. A β-decaying isomeric state has been observed inY. The level schemes ofZr andNb have been established from γ-ray spectroscopy. Absolute γ-intensities have been obtained by means of two independent techniques. Halflives of 293±10 ns for the 251.9 keV state and 10.2±1.5 ns for the 614.0 or 667.2 keV level inZr have been measured through delayed β,γ- and γ,γ-coincidence experiments. Values for the spins and parities of the low lying levels inZr are proposed in accordance with the systematics of lighter odd Zr isotopes. Spins and partities are assigned to some levels inNb from γ,γ-angular correlation measurements. In this nucleus there is evidence for three-particle configurations of some excited states, where the odd proton is coupled to two neutrons which are in different orbits. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
