| Autor: |
H. Emling, R. V. F. Janssens, P. J. Daly, W. Trzaska, M. Piiparinen, U. Garg, T. L. Khoo, R. Holzmann, B. K. Dichter, M.W. Drigert, M. Quader, W. C. Ma, I. Ahmad |
| Rok vydání: |
1989 |
| Předmět: |
|
| Zdroj: |
Physical Review Letters. 62:520-523 |
| ISSN: |
0031-9007 |
| DOI: |
10.1103/physrevlett.62.520 |
| Popis: |
The evolution of the $\ensuremath{\gamma}$ quasicontinuum spectrum with neutron number has been investigated in the sequence of isotopes $^{152,154,156}\mathrm{Dy}$. The three nuclei display a pronounced collective $E2$ component. In $^{154}\mathrm{Dy}$ this component shows a splitting into two distinct parts, signifying a structural change along the $\ensuremath{\gamma}$ cascade above the yrast line. The $E2$ and statistical components are reproduced in simple $\ensuremath{\gamma}$-cascade calculations; in $^{152}\mathrm{Dy}$ and $^{156}\mathrm{Dy}$ only rotational bands are included, whereas in $^{154}\mathrm{Dy}$ additional vibration-like transitions are required to reproduce the two $E2$ peaks. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
