Study of High Spin Stateal in Transitional Nucleus <SUP>87</SUP>Zr

ZHAO GuangYi; LI GuangSheng; WU XiaoGuang; LIU XiangAn; WEN ShuXian; LU JingBin; YUAN GuanJun; YANG ChunXing

Chinese Physics C> 2000, Vol. 24> Issue(3) : 213-219

Study of High Spin Stateal in Transitional Nucleus ⁸⁷Zr

China Institute of Atomic Energy, Beijing 102413, China2 Department of Phyrsics, Jilin University, Changchun 130023, China

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Abstract：
High spin states in ⁸⁷Zr was studied through the fusion evaporation reaction ⁵⁹Co(³²S, 3pn)⁸⁷Zr at a beam energy of 118 MeV using in-beam r-my spectroscopic method.r-r coincidence measurement was performed by using an array consisting of seven antiCompton spectrometers, and DCO ratios of some r rays were determined. The level scheme of ⁸⁷Zr wasestablished up to spin (37/2⁺) and (43/2^－). Many previously unknown states have been observed. Comparison with neighboring isotones indicates that 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.

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ZHAO GuangYi, LI GuangSheng, WU XiaoGuang, LIU XiangAn, WEN ShuXian, LU JingBin, YUAN GuanJun and YANG ChunXing. Study of High Spin Stateal in Transitional Nucleus ⁸⁷Zr[J]. Chinese Physics C, 2000, 24(3): 213-219.

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Received: 1998-12-30
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of High Spin Stateal in Transitional Nucleus ⁸⁷Zr

Corresponding author: ZHAO GuangYi,

China Institute of Atomic Energy, Beijing 102413, China2 Department of Phyrsics, Jilin University, Changchun 130023, China

Received Date: 1998-12-30

Accepted Date: 1900-01-01

Available Online: 2000-03-05

Abstract: High spin states in ⁸⁷Zr was studied through the fusion evaporation reaction ⁵⁹Co(³²S, 3pn)⁸⁷Zr at a beam energy of 118 MeV using in-beam r-my spectroscopic method.r-r coincidence measurement was performed by using an array consisting of seven antiCompton spectrometers, and DCO ratios of some r rays were determined. The level scheme of ⁸⁷Zr wasestablished up to spin (37/2⁺) and (43/2^－). Many previously unknown states have been observed. Comparison with neighboring isotones indicates that 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.

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Study of High Spin Stateal in Transitional Nucleus ⁸⁷Zr

Study of High Spin Stateal in Transitional Nucleus ⁸⁷Zr