Excited states and reduced transition probabilities in Os168
| Autor: | Paul Stevenson, Paul Greenlees, Pauli Peura, K. Andgren, Jan Sarén, A. Dewald, Markus Nyman, Matti Leino, J. L. Wood, Tuomas Grahn, D. M. Cullen, H. Iwasaki, P. J. Sapple, B. Saygi, Juha Uusitalo, J. Simpson, A. Petts, H. V. Watkins, Sanna Stolze, O. Möller, Kristiaan Heyde, R. D. Page, Peter M. Jones, Steffen Ketelhut, Ulrika Jakobsson, L. Bianco, D. T. Joss, David O'Donnell, Panu Rahkila, Catherine Scholey, Norbert Pietralla, Kosuke Nomura, N. M. Lumley, Juha Sorri, Rauno Julin, D. S. Judson, P. J. R. Mason, M. Akmali, Th. Pissulla, Sakari Juutinen |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Physical Review C. 94 |
| ISSN: | 2469-9993 2469-9985 |
| DOI: | 10.1103/physrevc.94.044327 |
| Popis: | The level scheme of the neutron-deficient nuclide 168Os has been extended and mean lifetimes of excited states have been measured by the recoil distance Doppler-shift method using the JUROGAM \gamma-ray spectrometer in conjunction with the IKP K\"oln plunger device. The 168Os \gamma rays were measured in delayed coincidence with recoiling fusion-evaporation residues detected at the focal plane of the RITU gas-filled separator. The ratio of reduced transition probabilities B(E2;4_1^+ \rightarrow 2_1^+)/B(E2;2_1^+ \rightarrow 0_1^+) is measured to be 0.34(18), which is very unusual for collective band structures and cannot be reproduced by IBM-2 model calculations based on the SkM* energy-density functional. |
| Databáze: | OpenAIRE |
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