New high spin level scheme of <SUP>87</SUP>Sr

LI Hong-Wei; LU Jing-Bin; LI Guang-Sheng; ZHENG Yun; YAO Shun-He; WU Xiao-Guang; HE Chuang-Ye; XIA Qing-Liang; LIU Jia-Jian; LI Cong-Bo; HU Shi-Peng; WANG Jin-Long; WU Yi-Heng; LUO Peng-Wei; MA Ke-Yan; XU Chuan; SUN Jun-Jie

doi:10.1088/1674-1137/38/7/074004

Chinese Physics C> 2014, Vol. 38> Issue(7) : 074004 DOI: 10.1088/1674-1137/38/7/074004

New high spin level scheme of ⁸⁷Sr

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High spin states of the odd-A ⁸⁷Sr were populated by the fusion-evaporation reaction ⁸²Se(⁹Be, 4n) ⁸⁷Sr at a beam energy of 46 MeV. Excited levels of ⁸⁷Sr have been extended up to an excitation energy of 7.4 MeV at spin 31/2ħ. The coupling of a g_9/2 neutron hole to the yrast states of the ⁸⁸Sr core can account for the low-lying states in ⁸⁷Sr. The structure of the higher spin states is discussed by analogy with those of the neighboring odd-A N=49 isotones and possible configurations are proposed.

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LI Hong-Wei, LU Jing-Bin, LI Guang-Sheng, ZHENG Yun, YAO Shun-He, WU Xiao-Guang, HE Chuang-Ye, XIA Qing-Liang, LIU Jia-Jian, LI Cong-Bo, HU Shi-Peng, WANG Jin-Long, WU Yi-Heng, LUO Peng-Wei, MA Ke-Yan, XU Chuan and SUN Jun-Jie. New high spin level scheme of ⁸⁷Sr[J]. Chinese Physics C, 2014, 38(7): 074004. doi: 10.1088/1674-1137/38/7/074004

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Received: 2013-12-12
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

New high spin level scheme of ⁸⁷Sr

Corresponding author: LI Hong-Wei,

Corresponding author: LU Jing-Bin,

Received Date: 2013-12-12

Accepted Date: 1900-01-01

Available Online: 2014-07-05

Abstract: High spin states of the odd-A ⁸⁷Sr were populated by the fusion-evaporation reaction ⁸²Se(⁹Be, 4n) ⁸⁷Sr at a beam energy of 46 MeV. Excited levels of ⁸⁷Sr have been extended up to an excitation energy of 7.4 MeV at spin 31/2ħ. The coupling of a g_9/2 neutron hole to the yrast states of the ⁸⁸Sr core can account for the low-lying states in ⁸⁷Sr. The structure of the higher spin states is discussed by analogy with those of the neighboring odd-A N=49 isotones and possible configurations are proposed.

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New high spin level scheme of ⁸⁷Sr

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New high spin level scheme of ⁸⁷Sr

Corresponding author: LI Hong-Wei,

Corresponding author: LU Jing-Bin,

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New high spin level scheme of 87Sr

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通讯作者: 陈斌, bchen63@163.com

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New high spin level scheme of 87Sr

Corresponding author: LI Hong-Wei,

Corresponding author: LU Jing-Bin,

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New high spin level scheme of ⁸⁷Sr

New high spin level scheme of ⁸⁷Sr