Reflection-Asymmetric Shell Model Description of the Neutron-Rich <suB>142,145</suB>Ba Nuclei

Chin. Phys. Lett.

2005, Vol. 22

Issue (6): 1362-1365 DOI:

Original Articles

Reflection-Asymmetric Shell Model Description of the Neutron-Rich _142,145Ba Nuclei

CHEN Yong-Jing¹;CHEN Yong-Shou²;ZHU Sheng-Jiang¹;GAO Zao-Chun²;TU Ya²

¹Department of Physics, Tsinghua University, Beijing 100084 ²China Institute of Atomic Energy, PO Box 275(18), Beijing 102413

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CHEN Yong-Jing, CHEN Yong-Shou, ZHU Sheng-Jiang et al 2005 Chin. Phys. Lett. 22 1362-1365

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Abstract The reflection asymmetric shell model has been applied to describe the octupole deformed bands in neutron-rich even-even ¹⁴²Ba and odd-N ¹⁴⁵Ba nuclei. The alternating parity bands of ¹⁴²Ba and the simplex s=-i bands of ¹⁴⁵Ba are calculated and compared with the available experimental data. The calculated results are in good agreement with the experimental data. The spin and parity assignments of ground-state of ¹⁴⁵Ba are discussed. The results show that the present work is a useful attempt to further explore the nuclear reflection asymmetry in neutron rich region.

Keywords: 21.60.Cs 21.10.-k 27.60.+j

Published: 01 June 2005

PACS:	21.60.Cs	(Shell model)
	21.10.-k	(Properties of nuclei; nuclear energy levels)
	27.60.+j	(90 ≤ A ≤ 149)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I6/01362

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