Lifetimes of High Spin Yrast States in Odd-Proton Nucleus 131Pr
LI Guang-Sheng1, MENG Rui2, ZHU Li-Hua1, ZHANG Zhen-Long2, WANG Yue2, WANG Zhi-Min1, WEN Shu-Xian1, LU Jing-Bin2, ZHAO Guang-Yi2, LI Xian-Feng2, WEN Li-Jun2, ZHENG Yong-Nan1, ZHENG Yong3, LIU Yun-Zuo2, YUAN Guan-Jun1, YANG Chun-Xiang1
1China Institute of Atomic Energy, Beijing 102413
2Department of Physics, Jilin University, Changchun 130023
3Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
Lifetimes of High Spin Yrast States in Odd-Proton Nucleus 131Pr
1China Institute of Atomic Energy, Beijing 102413
2Department of Physics, Jilin University, Changchun 130023
3Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
Abstract： Lifetimes of the high spin yrast states in the odd-proton nucleus 131Pr have been determined by analysing the Doppler broadened line shapes for the de-exciting γ-rays following the 116Sn(19F, 4n)131Pr reaction at a bombarding energy of 95 MeV. The transition quadrupole moments extracted from the measured lifetimes exhibit a considerable reduction near the rotational frequency of 0.42 MeV, at which the J(1) and J(2) moments of inertia indicate a band crossing. The experimental result demonstrates occurrence of the nuclear shape change induced by band crossing associated with the alignment of a pair of h11/2 protons.
LI Guang-Sheng;MENG Rui;ZHU Li-Hua;ZHANG Zhen-Long;WANG Yue;WANG Zhi-Min;WEN Shu-Xian;LU Jing-Bin;ZHAO Guang-Yi;LI Xian-Feng;WEN Li-Jun;ZHENG Yong-Nan;ZHENG Yong;LIU Yun-Zuo;YUAN Guan-Jun;YANG Chun-Xiang. Lifetimes of High Spin Yrast States in Odd-Proton Nucleus 131Pr[J]. 中国物理快报, 2003, 20(4): 475-477.
LI Guang-Sheng, MENG Rui, ZHU Li-Hua, ZHANG Zhen-Long, WANG Yue, WANG Zhi-Min, WEN Shu-Xian, LU Jing-Bin, ZHAO Guang-Yi, LI Xian-Feng, WEN Li-Jun, ZHENG Yong-Nan, ZHENG Yong, LIU Yun-Zuo, YUAN Guan-Jun, YANG Chun-Xiang. Lifetimes of High Spin Yrast States in Odd-Proton Nucleus 131Pr. Chin. Phys. Lett., 2003, 20(4): 475-477.
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.
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LIU Min-Liang;ZHANG Yu-Hu;ZHOU Xiao-Hong;GUO Ying-Xiang;LEI Xiang-Guo;LIU Zhong;HE Jian-Jun;WEN Shu-Xian;WU Xiao-Guang;YUAN Guan-Jun. Decay of the 67-μs Isomer in 142Pm[J]. 中国物理快报, 2004, 21(4): 626-628.
2003, Vol. 20 
