Competition Between Pairing and Anti-pairing Correlations in the Superdeformed Nuclear States in A ~ l90 and 150 Ranges

Chin. Phys. Lett.

1997, Vol. 14

Issue (9): 641-644 DOI:

Original Articles

Competition Between Pairing and Anti-pairing Correlations in the Superdeformed Nuclear States in A ~ l90 and 150 Ranges

LIU Yu-xin^1,3;SONG Jian-gang¹;SUN Hong-zhou^2,3;WANG Jia - jun^1,3;ZHAO En-guang³

¹Department of Physics, Peking Universitx Beijing 100871 ²Department of Physics, Tsinghua University, Beijing 100084 ³Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080

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LIU Yu-xin, SONG Jian-gang, SUN Hong-zhou et al 1997 Chin. Phys. Lett. 14 641-644

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Abstract An approach considering both pairing and anti-pairing correlations in superdeformed (SD) states is proposed. Calculated results show that not only the general changing feature but also the turnover of dynamical moment of inertia with rotational frequency of the first SD band of ¹⁹²Hg, ¹⁹⁴Hg, and ¹⁵²Dy are well described in the approach. It indicates that there exist competition, even change-over between the anti-pairing and pairing effects in the SD states in A ~ 190 and 150 ranges.

Keywords: 21.10.Re 21.60.Fw 23.20.Lv

Published: 01 September 1997

PACS:	21.10.Re	(Collective levels)
	21.60.Fw	(Models based on group theory)
	23.20.Lv	(γ-transitions and level energies)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I9/0641

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