1. Excited states and reduced transition probabilities in Os-168
- Author
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Grahn, T., Stolze, S., Joss, D. T., Page, R. D., Saygi, B., O'Donnell, D., Akmali, M., Andgren, K., Bianco, L., Cullen, D. M., Dewald, A., Greenlees, P. T., Heyde, K., Iwasaki, H., Jakobsson, U., Jones, P., Judson, D. S., Julin, R., Juutinen, S., Ketelhut, S., Leino, M., Lumley, N., Mason, P. J. R., Moeller, O., Nomura, K., Nyman, M., Petts, A., Peura, P., Pietralla, N., Pissulla, Th., Rahkila, P., Sapple, P. J., Saren, J., Scholey, C., Simpson, J., Sorri, J., Stevenson, P. D., Uusitalo, J., Watkins, H. V., Wood, J. L., and Ege Üniversitesi
- Subjects
EXCITATIONS ,PLUNGER ,Physics and Astronomy ,NUCLEI ,SPIN NONYRAST STATES ,SHAPE COEXISTENCE ,TOTAL DATA READOUT ,ISOTOPES ,REGION - Abstract
WOS: 000390177700005, The level scheme of the neutron-deficient nuclide Os-168 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 Koln plunger device. The 168Os. 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)(+)-> 2(1)(+))/B(E2; 2(1)(+)-> 0(1)(+)) is measured to be 0.34(18), which is very unusual for collective band structures and cannot be reproduced by interacting boson model (IBM-2) calculations based on the SkM* energy-density functional., EURONS (European Commission)European Commission Joint Research Centre [RII3-CT-2004-506065]; Academy of Finland under the Finnish Centre of Excellence ProgrammeAcademy of Finland [213503]; UK Science and Technology Facilities CouncilScience & Technology Facilities Council (STFC); Academy of FinlandAcademy of Finland [131665, 111965, 209430]; FWO-VlaanderenFWO; InterUniversity Attraction Pole Programme, Belgian State Federal Office for Scientific, Technical and Cultural Affairs (IAP) [P7/12]; Science and Technology Facilities CouncilScience & Technology Facilities Council (STFC) [ST/J000108/1, ST/G008671/1, ST/L005670/1, ST/G008620/1, ST/L005743/1, ST/L005794/1, ST/G008787/1, EP/E004385/1, ST/J000094/1, EP/C015266/1, ST/L005816/1, ST/L005689/1], This work has been supported through EURONS (European Commission Contract No. RII3-CT-2004-506065), the Academy of Finland under the Finnish Centre of Excellence Programme 2006-2011 (Nuclear and Accelerator Based Physics Contract No. 213503), and the UK Science and Technology Facilities Council. The UK/France (STFC/IN2P3) Loan Pool and GAMMAPOOL network are acknowledged for the EUROGAM detectors of JUROGAM. T.G., P.T.G., and C.S. acknowledge the support of the Academy of Finland, Contracts No. 131665, No. 111965, and No. 209430, respectively. Financial support (K.H.) from the "FWO-Vlaanderen" and the InterUniversity Attraction Pole Programme, Belgian State Federal Office for Scientific, Technical and Cultural Affairs (IAP Grant No. P7/12) is acknowledged.
- Published
- 2016