Abstract： Structure of high spin states in 87Zr was studied through the reaction 59Co(32S, 3pn)87Zr at a beam energy of 118 MeV using in-beam γ-ray spectroscopic method. Measurement of γ-γ coincidence was performed, and directional correlation orientation ratios of some γ rays were determined. The level scheme of 87Zr was established up to spin (37/2+) and (43/2-). Many previously unknown states have been observed. Comparison with neighboring isotones indicates that the effect of neutron on nuclear structure property is predominant compared to proton, and there is a tendency of reduction in band crossing frequency with increasing proton number.
ZHAO Guang-yi;LI Guang-sheng;WU Xiao-guang;LIU Xiang-an;WEN Shu-xian;LU Jing-bin;YUAN Guan-jun;YANG Chun-xiang. Structure of High Spin States in 87Zr[J]. 中国物理快报, 1999, 16(5): 345-346.
ZHAO Guang-yi, LI Guang-sheng, WU Xiao-guang, LIU Xiang-an, WEN Shu-xian, LU Jing-bin, YUAN Guan-jun, YANG Chun-xiang. Structure of High Spin States in 87Zr. Chin. Phys. Lett., 1999, 16(5): 345-346.
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.
1999, Vol. 16 
