Identification of New β-Delayed γ Rays and a Low-Spin Isomer in 176Ir
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WANG Hua-Lei,
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ZHANG Yu-Hu,
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ZHOU Xiao-Hong,
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GUO Ying-Xiang,
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LEI Xiang-Guo,
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XU Shu-Wei,
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XIE Yuan-Xiang,
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LIU Min-Liang,
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ZHENG Yong,
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XING Ye-Bing,
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XIE Cheng-Ying,
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SONG Li-Tao,
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LUO Peng,
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YU Hai-Ping,
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GUO Wen-Tao
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Abstract
The β+/EC decay of doubly odd nucleus 176Ir has been studied via the 146Nd(35Cl, 5nγ) heavy ion fusion evaporation reaction at 210MeV bombarding energy. With the aid of a helium-jet recoil fast tape transport system, the reaction products were transported to a low-background location for measurement. Based on the data analysis, the previously known γ rays from the decay of 176Ir are proven. Moreover, three new excited levels and ten new γ rays are assigned to 176Os. The time spectra of typical γ rays clearly indicate a long-lived low-spin isomer in 176Ir.
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