1. Collective excitations in the transitional nuclei Re-163 and Re-165
- Author
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Davis-Merry, T. R., Joss, D. T., Page, R. D., Simpson, J., Paul, E. S., Ali, F. A., Bianco, L., Carroll, R. J., Cederwall, B., Darby, I. G., Drummond, M. C., Eeckhaudt, S., Erturk, S., Gomez-Hornillos, M. B., Grahn, T., Greenlees, P. T., Hadinia, B., Jakobsson, U., Jones, P. M., Julin, R., Juutinen, S., Ketelhut, S., Leino, M., Nieminen, P., Nyman, M., O'Donnell, D., Pakarinen, J., Peura, P., Rahkila, P., Revill, J. P., Ruotsalainen, P., Sandzelius, M., Sapple, P. J., Saren, J., Saygi, B., Scholey, C., Sorri, J., Thomson, J., Uusitalo, J., Darby, Iain -- 0000-0003-2091-2616, Cederwall, Bo -- 0000-0003-1771-2656, SAYGI, BAHADIR -- 0000-0001-5406-506X, Pakarinen, Janne -- 0000-0001-8944-8757, O'Donnell, David -- 0000-0002-4710-3803, Scholey, Catherine -- 0000-0002-8743-6071, Grahn, Tuomas -- 0000-0002-6255-2279, Jakobsson, Ulrika -- 0000-0001-9741-141X, Ruotsalainen, Panu -- 0000-0002-8335-452X, Jones, Pete -- 0000-0001-7480-6603, Peura, Pauli -- 0000-0002-8541-0169, and [Davis-Merry, T. R. -- Page, R. D. -- Paul, E. S. -- Ali, F. A. -- Bianco, L. -- Carroll, R. J. -- Darby, I. G. -- Drummond, M. C. -- O'Donnell, D. -- Revill, J. P. -- Sapple, P. J. -- Saygi, B. -- Thomson, J.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England -- [Simpson, J. -- Gomez-Hornillos, M. B.] STFC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England -- [Cederwall, B. -- Hadinia, B.] Alba Nova Ctr, Royal Inst Technol, Dept Phys, S-10691 Stockholm, Sweden -- [Eeckhaudt, S. -- Grahn, T. -- Greenlees, P. T. -- Jakobsson, U. -- Jones, P. M. -- Julin, R. -- Juutinen, S. -- Ketelhut, S. -- Leino, M. -- Nieminen, P. -- Nyman, M. -- Pakarinen, J. -- Peura, P. -- Rahkila, P. -- Ruotsalainen, P. -- Sandzelius, M. -- Saren, J. -- Scholey, C. -- Sorri, J. -- Uusitalo, J.] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland -- [Erturk, S.] Nigde Univ, Fen Edebiyat Falkultesi, Fiz Bolumi, Nigde, Turkey -- [Ali, F. A.] Univ Sulaimani, Dept Phys, Sulaimani, Kurdistan Regio, Iraq
- Abstract
WOS: 000351510400001, Excited states in the neutron-deficient nuclei (163)(75) Re-88 and (165)(75) Re-90 were populated in the Cd-106(Ni-60, p2n gamma) and Mo-92(Kr-78, 3p2n gamma) fusion-evaporation reactions at bombarding energies of 270 and 380 MeV, respectively.. rays were detected at the target position using the JUROGAM spectrometer while recoiling ions were separated in-flight by the RITU gas-filled recoil separator and implanted in the GREAT spectrometer. The energy level schemes for Re-163 and Re-165 were identified using recoil-decay correlation techniques. At low spin, the yrast bands of these isotopes consist of signature partner bands based on a single pi h(11/2) quasiproton configuration. The bands display large energy splitting consistent with the soft triaxial shape typical of transitional nuclei above N = 82. The configurations of the excited states are proposed within the framework of the cranked shell model., UK Science and Technology Facilities Council; EU 6th Framework Programme, "Integrating Infrastructure Initiative-Transnational Access" [506065]; Academy of Finland under the Finnish Centre of Excellence Programme (Nuclear and Accelerator-Based Physics Programme at JYFL); Academy of Finland [121110, 209430]; Science and Technology Facilities Council [EP/D002257/1, ST/J000108/1, ST/J000094/1, EP/E004385/1, EP/C015266/1, ST/L005670/1, ST/G008671/1, ST/L005689/1], The authors express their gratitude to the staff of the Accelerator Laboratory at the University of Jyvaskyla for their excellent technical support. The authors also wish to thank Paul Morrall of the STFC Daresbury Laboratory for the preparation of the targets used in this work. Financial support for this work was provided by the UK Science and Technology Facilities Council and by the EU 6th Framework Programme, "Integrating Infrastructure Initiative-Transnational Access," Contract No. 506065 (EURONS), and by the Academy of Finland under the Finnish Centre of Excellence Programme (Nuclear and Accelerator-Based Physics Programme at JYFL). P.T.G (Grant No. 121110) and C.S. (Grant No. 209430) acknowledge the support of the Academy of Finland.
- Published
- 2015