Search for Signature Inversion in πi13/2 vi13/2 Band in Odd-Odd 178Ir
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, K. Furuno5
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
3Chiba University, Inage-ku, Chiba 263-8512, Japan
Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan
4Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-0006, Japan
Search for Signature Inversion in πi13/2 vi13/2 Band in Odd-Odd 178Ir
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
3Chiba University, Inage-ku, Chiba 263-8512, Japan
Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan
4Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-0006, Japan
Abstract： Search for the πi13/2 vi13/2 band in 178Ir have been conducted through the 152Sm(31P,5nγ)178Ir reaction and the excitation functions, x-γ and γ-γ-t coincidence measurements. Five rotational bands have been newly identified. The low-spin signature inversion in the πi13/2 vi13/2 band has been confirmed by the observations of linking transitions and signature crossing at I = 25.5ħ. The inversion phenomenon in πh11/2 vi13/2, πh9/2 vi13/2, and πh13/2 vi13/2 structures in 178Ir provides a unique testing ground for different theoretical interpretations.
ZHANG Yu-Hu;T. Hayakawa;M. Oshima;Y. Toh;J. Katakura;Y. Hatsukawa;M. Matsuda;N. Shinohara;T. Ishii;H. Kusakari;M. Sugawara;T. Komatsubara;K. Furuno. Search for Signature Inversion in πi13/2 vi13/2 Band in Odd-Odd 178Ir[J]. 中国物理快报, 2001, 18(10): 1323-1326.
ZHANG Yu-Hu, T. Hayakawa, M. Oshima, Y. Toh, J. Katakura, Y. Hatsukawa, M. Matsuda, N. Shinohara, T. Ishii, H. Kusakari, M. Sugawara, T. Komatsubara, K. Furuno. Search for Signature Inversion in πi13/2 vi13/2 Band in Odd-Odd 178Ir. Chin. Phys. Lett., 2001, 18(10): 1323-1326.
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 
