Quadrupole Moment of the h<suB>11/2</suB> Quasineutron Band in <sup>129</sup>Ce

Chin. Phys. Lett.

1998, Vol. 15

Issue (8): 564-565 DOI:

Original Articles

Quadrupole Moment of the h_11/2 Quasineutron Band in ¹²⁹Ce

LI Guang-sheng;DAI Zheng-yu;LIU Xiang-an;ZHANG Lan-kuan;WEN Shu-xian;WU Xiao-guang;YUAN Guan-jun;WENG Pei-kun;LI Sheng-gang;YANG Chun-xiang

China Institute of Atomic Energy, Beijing 102413

Cite this article:

LI Guang-sheng, DAI Zheng-yu, LIU Xiang-an et al 1998 Chin. Phys. Lett. 15 564-565

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Abstract Mean lifetimes of the h_11/2 quasineutron band in ¹²⁹Ce were measured by using the Doppler shift attenuation method in connection with the reaction ¹¹⁶Sn (^l6O, 3n)¹²⁹Ce at a bombarding energy of 73MeV. The data indicate that transition quadrupole moment of ¹²⁹Ce is smaller than that of ¹²⁸Ce. This reduction in collectivity caused by the addition of an h_11/2 neutron can be interpreted as due to triaxiality induced by γ driving effect.

Keywords: 21.60.-n 27.60.+j

Published: 01 August 1998

PACS:	21.60.-n	(Nuclear structure models and methods)
	27.60.+j	(90 ≤ A ≤ 149)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1998/V15/I8/0564

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	LI Guang-sheng
	DAI Zheng-yu
	LIU Xiang-an
	ZHANG Lan-kuan
	WEN Shu-xian
	WU Xiao-guang
	YUAN Guan-jun
	WENG Pei-kun
	LI Sheng-gang
	YANG Chun-xiang

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