No Anomaly of the B(E2) Value Around the Backbend in <sup>130</sup>Ce

Chin. Phys. Lett.

2002, Vol. 19

Issue (2): 187-189 DOI:

Original Articles

No Anomaly of the B(E2) Value Around the Backbend in ¹³⁰Ce

LI Guang-Sheng¹;YANG Li-Ming²;DAI Zheng-Yu¹;LIU Xiang-An¹;ZHANG Lan-Kuan¹;WEN Shu-Xian¹;WU Xiao-Guang¹;YUAN Guan-Jun¹;WENG Pei-Kun¹;LI Sheng-Gan¹g;ZHU Sheng-Jiang²;YANG Chun-Xiang¹;ZHU Li-Hua¹

¹China Institute of Atomic Energy, Beijing 102413 ²Department of Physics, Tsinghua University, Beijing 100084

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LI Guang-Sheng, YANG Li-Ming, DAI Zheng-Yu et al 2002 Chin. Phys. Lett. 19 187-189

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Abstract The lifetime measurements of the high-spin states in the yrast band of ¹³⁰Ce have been performed by using the Doppler shift attenuation method in conjunction with the reaction ¹¹⁶Sn(¹⁶O,2n)¹³⁰Ce at a projectile energy of 73MeV. The reduced transition probabilities B(E2) deduced from these measurements show a great reduction in the vicinity of the backbending region. The previously reported anomalously high B(E2) value was not observed in the present experiment. This result is in agreement with theoretical prediction based on a realistic nucleon-nucleon interaction.

Keywords: 21.60.-n 27.60.+j

Published: 01 February 2002

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/Y2002/V19/I2/0187

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	LI Guang-Sheng
	YANG Li-Ming
	DAI Zheng-Yu
	LIU Xiang-An
	ZHANG Lan-Kuan
	WEN Shu-Xian
	WU Xiao-Guang
	YUAN Guan-Jun
	WENG Pei-Kun
	LI Sheng-Gang
	ZHU Sheng-Jiang
	YANG Chun-Xiang
	ZHU Li-Hua

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