Negative Parity Bands and Signature Splitting Inversion in 80Rb
WEN Shu-Xian1, HE Chuang-Ye1, ZHU Li-Hua1, WANG Zhi-Min1, LI Guang-Sheng1, MA Rui-Gang1, WU Xiao-Guang1, YUAN Guan-Jun1, YANG Chun-Xiang1, WANG Yue2, ZHANG Zhen-Long2, MENG Rui2, M. Oshima3, Y. Toh3, A. Osa3, M. Koizumi3, Y. Hatsukawa3, M. Matsuda3, T. Hagakawa3, M. M. Ndontcheng4
1China Institute of Atomic Energy, Beijing 102413
2Department of Physics, Jinlin University, Changchun 130023
3Japan Atomic Energy Research Institute, Tokai, Japan Department of Physics, University of Douala, Douala, Cameroun
Negative Parity Bands and Signature Splitting Inversion in 80Rb
1China Institute of Atomic Energy, Beijing 102413
2Department of Physics, Jinlin University, Changchun 130023
3Japan Atomic Energy Research Institute, Tokai, Japan Department of Physics, University of Douala, Douala, Cameroun
Abstract： High spin states in 80Rb were studied via the 65Cu+19F, 66Zn+18O and 68Zn+16O reactions. The 75-MeV 19F, 76-MeV 18O and 80-MeV 16O beams were provided by the CIAE HI-13 Tandem accelerator and JAERI Tandem accelerator. The prompt γ-γ coincidence and the directional correlation from oriented nuclei (DCO) were measured by the detector arrays in CIAE and JAERI. Twenty-three new states with 28 new transitions have been assigned to 80Rb. The states were observed up to spins 20+ and 22- in the α = 0 branch for the positive and negative parity yrast bands respectively. The negative parity non-yrast bands were significantly extended up to spins of 22- and 15-. The band crossings with frequencies 0.51 MeV and 0.61 ,MeV in the α = 0 cascade were observed for the first time. The signature splitting was observed in both the negative parity bands. The signature inversions at about spins 7ħ and 15ħ were observed.
WEN Shu-Xian;HE Chuang-Ye;ZHU Li-Hua;WANG Zhi-Min;LI Guang-Sheng;MA Rui-Gang;WU Xiao-Guang;YUAN Guan-Jun;YANG Chun-Xiang;WANG Yue;ZHANG Zhen-Long;MENG Rui;M. Oshima;Y. Toh;A. Osa;M. Koizumi;Y. Hatsukawa;M. Matsuda;T. Hagakawa;M. M. Ndontcheng. Negative Parity Bands and Signature Splitting Inversion in 80Rb[J]. 中国物理快报, 2003, 20(11): 1932-1935.
WEN Shu-Xian, HE Chuang-Ye, ZHU Li-Hua, WANG Zhi-Min, LI Guang-Sheng, MA Rui-Gang, WU Xiao-Guang, YUAN Guan-Jun, YANG Chun-Xiang, WANG Yue, ZHANG Zhen-Long, MENG Rui, M. Oshima, Y. Toh, A. Osa, M. Koizumi, Y. Hatsukawa, M. Matsuda, T. Hagakawa, M. M. Ndontcheng. Negative Parity Bands and Signature Splitting Inversion in 80Rb. Chin. Phys. Lett., 2003, 20(11): 1932-1935.
MA Long;ZHOU Xiao-Hong;XING Ye-Bing;ZHANG Yu-Hu;GUO Ying-Xing;LEI Xiang-Guo;XIE Chen-Ying;Oshima M.;Toh Y.;Koizumi M.;Osa A.;Hatsukawa Y.;Sugawara M.. Properties of the πh9/2 otimes νi13/2 Oblate Band in 188Tl[J]. 中国物理快报, 2006, 23(7): 1727-1730.
CHE Xing-Lai;ZHU Sheng-Jiang;J. H. Hamilton;A. V. Ramayya;J. K. Hwang;J. O. Rasmussen;Y. X. Luo;CHEN Yong-Jing;LI Ming-Liang;DING Huai-Bo;U Yong-Nam;I. Y. Lee;W. C. Ma. High Spin Band Structure in 112Ru[J]. 中国物理快报, 2006, 23(2): 328-331.
WANG Shou-Yu;MA Ying-Jun;T. Komatsubara;LIU Yun-Zuo;ZHANG Yu-Hu;K. Furuno;T. Hayakawa;J. Mukai;Y. Iwata;T. Morikawa;G. B. Hagemann;G. Sletten;J. Nyberg;D. Jerrestam;H. J. Jensen;J. Espino;J. Gascon;N. GjФrup;B. Cederwall;P. O. TjФm. Structure of the πg7/2 [404] 7/2+ Band in Odd Proton Nucleus 123I[J]. 中国物理快报, 2004, 21(6): 1024-1026.
2003, Vol. 20 
