Identification of New β-Delayed γ Rays and a Low-Spin Isomer in <sup>176</sup>Ir

Chin. Phys. Lett.

2005, Vol. 22

Issue (9): 2211-2214 DOI:

Original Articles

Identification of New β-Delayed γ Rays and a Low-Spin Isomer in ¹⁷⁶Ir

WANG Hua-Lei^1,2;ZHANG Yu-Hu^1,2;ZHOU Xiao-Hong¹;GUO Ying-Xiang¹;LEI Xiang-Guo¹;XU Shu-Wei¹;XIE Yuan-Xiang¹;LIU Min-Liang¹;ZHENG Yong¹;XING Ye-Bing¹;XIE Cheng-Ying¹;SONG Li-Tao¹;LUO Peng¹;YU Hai-Ping¹;GUO Wen-Tao¹

¹Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 ²Graduate School of Chinese Academy of Sciences, Beijing 100039

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WANG Hua-Lei, ZHANG Yu-Hu, ZHOU Xiao-Hong et al 2005 Chin. Phys. Lett. 22 2211-2214

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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.

Keywords: 21.10.Re 23.20.Lv 27.70.+q

Published: 01 September 2005

PACS:	21.10.Re	(Collective levels)
	23.20.Lv	(γ-transitions and level energies)
	27.70.+q	(150 ≤ A ≤ 189)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I9/02211

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	WANG Hua-Lei
	ZHANG Yu-Hu
	ZHOU Xiao-Hong
	GUO Ying-Xiang
	LEI Xiang-Guo
	XU Shu-Wei
	XIE Yuan-Xiang
	LIU Min-Liang
	ZHENG Yong
	XING Ye-Bing
	XIE Cheng-Ying
	SONG Li-Tao
	LUO Peng
	YU Hai-Ping
	GUO Wen-Tao

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