Enhancement of M1 Transition Rates at High Spin in <sup>90</sup>Mo

Chin. Phys. Lett.

2001, Vol. 18

Issue (4): 505-507 DOI:

Original Articles

Enhancement of M1 Transition Rates at High Spin in ⁹⁰Mo

WU Xiao-Guang; LI Guang-Sheng;PENG Zhao-Hua;WEN Shu-Xian;HAN Guang-Bing;LI Cheng-Po;LU Shao-Jun; WU Shao-Yong;YUAN Guan-Jun;YANG Chun-Xiang

China Institute of Atomic Energy, Beijing 102413

Cite this article:

WU Xiao-Guang, LI Guang-Sheng, PENG Zhao-Hua et al 2001 Chin. Phys. Lett. 18 505-507

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Abstract High spin states in ⁹⁰Mo have been populated through the ⁵⁹Co (³⁵Cl,2p2n) ⁹⁰Mo reaction at beam energy of 116 MeV. Level lifetimes of the positive-parity decay sequence are measured by using the Doppler shift attenuation method. It is observed that the M1 transition strengths show a substantial enhancement at high spin. This behaviour may be related to occupation of high Ω orbitals by a pair of g_9/2 protons. A deformed shape with oblate is suggested above the 13⁺ state.

Keywords: 23.20.-g 27.60.+j

Published: 01 April 2001

PACS:	23.20.-g	(Electromagnetic transitions)
	27.60.+j	(90 ≤ A ≤ 149)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2001/V18/I4/0505

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	WU Xiao-Guang
	LI Guang-Sheng
	PENG Zhao-Hua
	WEN Shu-Xian
	HAN Guang-Bing
	LI Cheng-Po
	LU Shao-Jun
	WU Shao-Yong
	YUAN Guan-Jun
	YANG Chun-Xiang

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