Doubly Decoupled Structure in Odd--Odd 178-186Ir Nuclei
ZHANG Yu-Hu1, T. Hayakawa2, M. Oshima2, Y. Toh2, J.Katakura2, Y. Hatsukawa2, M.Matsuda2, N. Shinohara2, T.Ishii2, H. Kusakari3, M.Sugawara4, T. Komatsubara5
1Institute of Modern Physics, Chinese Academy of Sciences,Lanzhou730000
2Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195,Japan
3Chiba University, Inage-ku, Chiba 263-8512,
4Japan Chiba Institute of Technology, Narashino, Chiba 275-0023,
5Institute of Physics and Tandem Accelerator Center, University ofTsukuba, Ibaraki 305-0006, Japan
Doubly Decoupled Structure in Odd--Odd 178-186Ir Nuclei
ZHANG Yu-Hu1;T. Hayakawa2;M. Oshima2;Y. Toh2;J.Katakura2; Y. Hatsukawa2;M.Matsuda2;N. Shinohara2;T.Ishii2;H. Kusakari3;M.Sugawara4;T. Komatsubara5
1Institute of Modern Physics, Chinese Academy of Sciences,Lanzhou730000
2Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195,Japan
3Chiba University, Inage-ku, Chiba 263-8512,
4Japan Chiba Institute of Technology, Narashino, Chiba 275-0023,
5Institute of Physics and Tandem Accelerator Center, University ofTsukuba, Ibaraki 305-0006, Japan
Abstract： High-spin states in 178,180Ir have been studied via the 152,154Sm(31P, 5nγ) reactions through excitation functions, x-γ and γ -γ-t coincidence measurements. A doubly decoupled band has been identified in each of the isotopes. The level spacings for such structures in odd--odd 178-186Ir have been inspected and thus a regular level staggering as a function of the neutron number is revealed. This particular phenomenon may be associated with bandmixing at lower excitation energies.
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.
2001, Vol. 18 
