Collective and intrinsic structures in 183W |
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| Affiliation: | 1. The Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark;2. Department of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki, Japan;3. Department of Physics, University of Surrey, Guildford, UK;1. University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan;2. Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan;3. Rare Isotope Science Project, Institute for Basic Science (IBS), Daejeon 305-811, Republic of Korea;4. Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan;1. Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany;2. “Horia Hulubei” National Institute for Physics and Nuclear Engineering, R-76900, Bucharest-Măgurele, Romania;3. Bulgarian Academy of Sciences, Institute for Nuclear Research and Nuclear Energy, 1784 Sofia, Bulgaria;4. Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany;5. CSNSM, IN2P3/CNRS and Université Paris-Sud, F-91405 Orsay Campus, France;6. School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom;7. SUPA, University of the West of Scotland, Paisley PA1 2BE, United Kingdom;1. Department of Physics, LPMC-ERSA, Faculty of Sciences Ben M''Sik, Hassan II Casablanca University, Casablanca, Morocco;2. Department of Physics, Polydisciplinary Faculty, University Abdelmalek Essaadi, Larache, Morocco;3. Laboratory of Sciences and Health Technologies, High Institute of Health Sciences, University Hassan 1, Settat, Morocco;1. Advanced Science Research Center, Japan Atomic Energy Agency;2. J-PARC Center, Japan Atomic Energy Agency;3. Brookhaven National Laboratory;4. University of Tsukuba;5. Center for Nuclear Study, University of Tokyo;6. J-PARC Center, High Energy Accelerator Research Organization;7. Tohoku University;8. Osaka University;9. RIKEN;10. Nagasaki Institute of Applied Science;11. Hiroshima University;12. Akita International University;13. GSI;14. Johannes Gutenberg-Universität, Mainz |
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| Abstract: | The structure of 183W has been studied by employing the 176Yb(14C,α3n) reaction at 68 MeV. Five previously known rotational structure with one-quasiparticle configurations have been extended to higher spin states, and five new rotational bands with three- and five-quasiparticle configurations and a γ-vibration of a one-quasiparticle structure have been newly identified. In the ν7/2−[503] and ν11/2+[615] rotational structures, a signal of an admixture of an octupole-vibrational structure has been observed in their in-band B(M1)/B(E2) ratios and gK factors. In the Kπ=19− rotational band, a Coriolis effect on the ν1/2−[510] neutron has been identified. In all, 17 K-forbidden transitions have been observed. Energies of intrinsic states below 4 MeV have been calculated based on the Blocked BCS theory, and they are used in support of the configuration assignments. |
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