EPJ Web Conf.
Volume 123, 2016Heavy Ion Accelerator Symposium 2015: International Nuclear Structure Conference in Remembrance of George Dracoulis
|Number of page(s)||5|
|Published online||05 September 2016|
β-decay spectroscopy of neutron-rich 160,161,162Sm isotopes
1 Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
2 RIKEN Nishina Center, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
3 National Physical Laboratory, Teddington, Middlesex, TW11 0LW, United Kingdom
4 International Research Center for Nuclei and Particles in the Cosmos, Beihang University, Beijing 100191, China
5 School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
6 Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan
7 Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
8 LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France
9 School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
10 School of Computing, Engineering and Mathematics, University of Brighton, Brighton, BN2 4JG, United Kingdom
11 Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom
12 Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
13 Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
14 Department of Physics, University of Oslo, Oslo, Norway
15 INFN Sezione di Milano, I-20133 Milano, Italy
16 Center for Nuclear Study (CNS), University of Tokyo, Wako, Saitama 351-0198, Japan
17 Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
18 Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
19 Research Facility Center for Pure and Applied Science, University of Tsukuba, Ibaraki 305-8577, Japan
20 Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Korea
21 GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
22 Institute for Nuclear Research, Hungarian Academy of Sciences, P. O. Box 51, Debrecen, H-4001, Hungary
23 School of Physics, Peking University, Beijing 100871, China
24 Hoseo University, Asan, Chungnam 336-795, Korea
25 Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
26 Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
a e-mail: email@example.com
Published online: 5 September 2016
Neutron-rich 160,161,162Sm isotopes have been populated at the RIBF, RIKEN via β first time. β-coincident γ rays were observed in all three isotopes including γ rays from the isomeric decay of 160Sm and 162Sm. The isomers in 160Sm and 162Sm have previously been observed but have been populated via β decay for the first time. The isomeric state in 162Sm is assigned a configuration based on the decay pattern. The level schemes of 160Sm and 162Sm are presented. The ground states in the parent nuclei 160Pm and 162Pm are both assigned a configuration based on the population of states in the daughter nuclei. Blocked BCS calculations were performed to further investigate the spin-parities of the ground states in 160Pm, 161Pm, and 162Pm, and the isomeric state in 162Sm
© The Authors, published by EDP Sciences, 2016
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