| Article | |
| Title | Deformed ground states and double backbending at high spins in light Kr isotopes |
| Author(s) | Hamilton, J H ; Carter, H K ; Cleemann, L ; Döring, J ; Eberth, J ; Frauendorf, S ; Funke, L ; Heck, T ; Kim, H J ; Lin, J ; Maguire, C F ; Neumann, W ; Nolte, M ; Piercey, R B ; Ramayya, A V ; Rester, A C ; Robinson, R L ; Roth, J ; Soundranayagam, R ; Sun, X J ; Wells, J C ; Winter, G ; Zhao, Z Z |
| Affiliation | (Phys Dept, Vanderbilt Univ, Nashville, TN, USA) |
| Publication | CERN, 1981 |
| In: | 4th International Conference on Nuclei Far from Stability, pp.391-6 |
| DOI | 10.5170/CERN-1981-009.391 |
| Subject category | Nuclear Physics |
| Abstract | The energy levels in /sup 74,76/Kr have been studied with a range of in-beam, gamma -spectroscopy techniques following heavy-ion reactions and in /sup 76/Kr via the radioactive decay of /sup 76/Rb. Breaks in the level energies and moments of inertia in /sup 74,76/Kr are observed at low spins. These data can be understood in terms of the crossing of bands built on near-spherical and deformed shapes with the ground states having very large deformation. In /sup 74/Kr the yrast cascade is observed to a tentative 20/sup +/ level. Double backbending of J is observed at spins of 12/sup +/ and 16/sup +/. These changes are interpreted in terms of rotation-aligned structures. (17 refs). |
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