Recoil-distance Doppler-shift lifetime measurement of low-lying superdeformed states in194Hg
| Autor: | J. de Boer, R. Krücken, R. Kühn, C. Meier, O. Vogel, H. Tiesler, P. von Brentano, A. Dewald, S. Kasemann, D. Bazzacco, R. Peusquens, S. Lunardi, C. Rossi-Alvarez |
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| Rok vydání: | 1997 |
| Předmět: | |
| Zdroj: | Physical Review C. 55:R1002-R1006 |
| ISSN: | 1089-490X 0556-2813 |
| DOI: | 10.1103/physrevc.55.r1002 |
| Popis: | The lifetimes of three low-lying states in the superdeformed (SD) yrast band of {sup 194}Hg were measured applying the recoil-distance Doppler-shift method. As the deduced transition quadrupole moments Q{sub t} are equal within the experimental uncertainties to those extracted from a Doppler-shift attenuation method (DSAM) measurement for the high-lying states of the band, the assumption that the decay out of SD bands does not strongly affect the structure of the corresponding states is corroborated. By a simple mixing model, the decay can be described assuming a very small admixture of normal-deformed (ND) states to the decaying SD states. The deduced ND mixing amplitudes for the yrast SD bands in {sup 192,194}Hg and {sup 194}Pb are presented along with average transition quadrupole moments for the lower parts of the excited SD bands in {sup 194}Hg. {copyright} {ital 1997} {ital The American Physical Society} |
| Databáze: | OpenAIRE |
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