ヒガシヤマ　コウジ   HIGASHIYAMA Koji   東山　幸司    所属   千葉工業大学  創造工学部 教育センター（創造工学部）    職種   教授
言語種別	英語
発行・発表の年月	2015/05
形態種別	学術雑誌
査読	査読あり
標題	High-spin states in 136La and possible structure change in the N=79 region
執筆形態	共著
掲載誌名	Physical Review C
掲載区分	国外
出版社・発行元	American Physical Society
巻・号・頁	91,pp.054305-1-054305-9
著者・共著者	H. Nishibata, R. Leguillon, A. Odahara, T. Shimoda, C. M. Petrache, Y. Ito, J. Takatsu, K. Tajiri, N. Hamatani, R. Yokoyama, E. Ideguchi, H. Watanabe, Y. Wakabayashi, K. Yoshinaga, T. Suzuki, S. Nishimura, D. Beaumel, G. Lehaut, D. Guinet, P. Desesquelles, D. Curien, K. Higashiyama, and N. Yoshinaga
概要	High-spin states in the odd-odd nucleus 136La have been investigated in the radioactive-beam-induced fusion-evaporation reaction 124Sn(17N,5n). The use of the radioactive beam enabled a highly sensitive and successful search for a new isomer [14+, T1/2=187(27) ns] in 136La. The level scheme was revised, incorporating the 14+ isomer and six new levels. The results were compared with pair-truncated shell model (PTSM) calculations. The isomerism of the 14+ state was investigated also by a collective model, the cranked Nilsson-Strutinsky (CNS) model, which explains various high-spin structures in the medium-heavy mass region. It is suggested that a new type of collective structure is induced in the PTSM model by the increase of the number of 0g7/2 pairs, and/or in the CNS model by the configuration change associated with the shape change in 136La.
DOI	10.1103/PhysRevC.91.054305