Reinvestigation of the high spin states in <SUP>161</SUP>Er and enhanced E1 transitions in the <EM>N</EM>=93 isotones

CHEN Liang; ZHOU Xiao-Hong; ZHANG Yu-Hu; LIU Min-Liang; WANG Shi-Tao; FANG Yong-De; HUA Wei; QIANG Yun-Hua; LI Guang-Shun; ZHOU Hou-Bing; DING Bing; WANG Hai-Xia; ZHENG Yong; ZHU Li-Hua; WU Xiao-Guang

doi:10.1088/1674-1137/35/6/007

Chinese Physics C> 2011, Vol. 35> Issue(6) : 545-549 DOI: 10.1088/1674-1137/35/6/007

Reinvestigation of the high spin states in ¹⁶¹Er and enhanced E1 transitions in the N=93 isotones

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High-spin states in ¹⁶¹Er have been studied experimentally using the ¹⁵⁰Nd(¹⁶O, 5n) reaction at a beam energy of 86 MeV. The relatively enhanced E1 transitions between the 5/2⁺[642] and 3/2^-[521] bands are observed in ¹⁶¹Er, and the B(E1) values are extracted experimentally. The systematics of the R(E1) values in the N=93 isotones are presented. It is found that the strength of the E1 transitions obviously exhibits angular momentum dependence, and the occurrence of the relatively enhanced E1 transitions could be attributed to octupole softness.

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CHEN Liang, ZHOU Xiao-Hong, ZHANG Yu-Hu, LIU Min-Liang, WANG Shi-Tao, FANG Yong-De, HUA Wei, QIANG Yun-Hua, LI Guang-Shun, ZHOU Hou-Bing, DING Bing, WANG Hai-Xia, ZHENG Yong, ZHU Li-Hua and WU Xiao-Guang. Reinvestigation of the high spin states in ¹⁶¹Er and enhanced E1 transitions in the N=93 isotones[J]. Chinese Physics C, 2011, 35(6): 545-549. doi: 10.1088/1674-1137/35/6/007

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Received: 2010-09-26
Revised: 2010-11-08

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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

Reinvestigation of the high spin states in ¹⁶¹Er and enhanced E1 transitions in the N=93 isotones

Received Date: 2010-09-26

Accepted Date: 2010-11-08

Available Online: 2011-06-05

Abstract: High-spin states in ¹⁶¹Er have been studied experimentally using the ¹⁵⁰Nd(¹⁶O, 5n) reaction at a beam energy of 86 MeV. The relatively enhanced E1 transitions between the 5/2⁺[642] and 3/2^-[521] bands are observed in ¹⁶¹Er, and the B(E1) values are extracted experimentally. The systematics of the R(E1) values in the N=93 isotones are presented. It is found that the strength of the E1 transitions obviously exhibits angular momentum dependence, and the occurrence of the relatively enhanced E1 transitions could be attributed to octupole softness.

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Reinvestigation of the high spin states in ¹⁶¹Er and enhanced E1 transitions in the N=93 isotones

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Reinvestigation of the high spin states in ¹⁶¹Er and enhanced E1 transitions in the N=93 isotones

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Reinvestigation of the high spin states in 161Er and enhanced E1 transitions in the N=93 isotones

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Reinvestigation of the high spin states in 161Er and enhanced E1 transitions in the N=93 isotones

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Reinvestigation of the high spin states in ¹⁶¹Er and enhanced E1 transitions in the N=93 isotones

Reinvestigation of the high spin states in ¹⁶¹Er and enhanced E1 transitions in the N=93 isotones