THE SHAPE COEXISTENCE IN <SUP>190</SUP>Hg

ZHANG Jing-Ye

Chinese Physics C> 1990, Vol. 14> Issue(4) : 372-374

THE SHAPE COEXISTENCE IN ¹⁹⁰Hg

ZHANG Jing-Ye ^,

Center of Theoretical Physics,CCASTWorld Lab and Institute of Modern Physics,Academia Sinica,Lanzhou

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Abstract：
The ground state Potential Energy Surface for nucleus ¹⁹⁰Hg was calculated in terms of Nilsson-Strutinsky method with standard κ,μ set and modified one.It is shown that there is a low-lying second minimum in prolate side except the known oblate minimum.The existence of such a prolate minimum,which is different from Total Routhian Surface calculation,may explain the recent observation of extra deformation band in ¹⁹⁰Hg.

References

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Wenchao Ma(马文超)and J.H. Hamilton, Chinese Journal of Nucl. Phys., 11 (1989), 45.[2] Jingye Zhang(张敬业)，“Physics at Tandem"国际会议，特邀报告，1986年9月8-13日，北京.R.Bengtsson, T. Bengtsson, J.Dudek, G. Leander, W. Nazarewicz and Jingye Zhang(张敬业)，Phys. Lett, 183B (1987), 11.[3] J. H. Hamilton, NuKleoniKa, .24 (1979), 561.[4] R. Bengtsson and S.berg, Phys. Lett., 172B (1986), 277.[5] 张敬业，钟纪泉，廖毕程，高能物理与核物理，12(1988),665,[6] A.H. Wapstra, G. Audi and R. Hoekstra, At. Data Nucl. Data Tables, 39 (1988), 281.[7] S.G. Nilsson, C.F. Tsang, A. Sobiczewski, S. Wycech, C.Gustafson, I. Lamm, P. Moller and B. Nilsson, Nucl. Phys, A131(1969), 1.[8] T. Bengtsson and I. Ragnarsson, Nucl. Phys.,A436(1985), 14.[9] Jingye Zhang(张敬业)，A.J. Larabee and L.L, Riedinger, J. Phyr. G. Nucl. Phys.,13 (1987)L75.

[1]	LIU Hong-Liang , XU Fu-Rong . Shape coexistence of high-spin isomeric states in proton-rich A~190 nuclei. Chinese Physics C, 2008, 32(S2): 131-133.
[2]	ZHOU Xiao-Hong , M.Oshima , ZHANG Yu-Hu , M.Koizumi , A.Osa , T.Hayakawa , Y.Hatsukawa , T.Shizuma , M.Sugawara . High-spin States in 190Pt*. Chinese Physics C, 2008, 32(1): 31-33. doi: 10.1088/1674-1137/32/1/007
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[4]	HE Xiao-Tao , YU Shao-Ying , LIU Shu-Xin , ZENG Jin-Yan , ZHAO En-Guang . Study of the Identical Bands of Odd-A and Odd-Odd Nuclei in the A～190 Mass Region. Chinese Physics C, 2004, 28(12): 1366-1369.
[5]	DI Yao-Min . Discussion of Spin Assignment of the Signature Partner Bands in Odd-A Superdeformed Nuclei in A≈190 Region. Chinese Physics C, 2003, 27(3): 227-232.
[6]	ZHANG Xin-Ming , ZHOU Huan-Qiang . Study for Superdeformed Bands in A～190 Region with Quantum Group U_qp(u₂) Model. Chinese Physics C, 2002, 26(8): 843-850.
[7]	DONG Bao-Guo , GUO Hong-Chao , Ingemar Ragnarsson . Shape Coexistence and Band Termination in ¹³¹La. Chinese Physics C, 2002, 26(3): 266-272.
[8]	ZHOU Xiao-Hong , ZHENG Yong , ZHANG Yu-Hu , GUO Ying-Xiang , LEI Xiang-Guo , LIU Zhong , HE Jian-Jun , LIU Min-Liang , LUO Wan-Ju , WEN Shu-Xian , ZHU Li-Hua , YANG Chun-Xiang . Shape Co-existence in ¹⁵⁷Yb. Chinese Physics C, 2002, 26(5): 441-444.
[9]	GUO Jian-You , XU Fu-Xin , RUAN Tu-Nan . Further Discussion on the Spin-Determination of Superdeformed Bands in the A～190 Region. Chinese Physics C, 2001, 25(6): 514-520.
[10]	ZHANG Li , HU QingYuan , ZHAO JinHua , ZHENG JiWen , LI ZhanKui , LI ShiHong , GAN ZaiGuo , YU Yong , FAN HongMei , GUO Bin , ZHANG TianMei , WANG ChunFang , WANG TongQing , JIN GenMing , PU YueHu , , , , . γ Scheme Following ²⁰⁸Hg β^－ Decay. Chinese Physics C, 2000, 24(9): 823-828.
[11]	Wu Chongshi . Re-Discussion of the Spin Assignments of the Superdeformed Bands in A～190 Region (I) Even-Even Superdeformed Nuclei. Chinese Physics C, 1998, 22(1): 71-77.
[12]	Zhao Jinhua , Zhang Li , Zheng Jiwen , Wang Jicheng , Qin Zhi , Yang Yongfeng , Zhang Chun , Jin Genming , Guo Guanghui , Du Yifei , Guo Tianrui , Wang Tongqing , Guo Bin , Tan Jinfeng . New Heavy Neutron-Rich Nuclide ²⁰⁹Hg. Chinese Physics C, 1998, 22(10): 959-960.
[13]	Xu Furong , Hu Jimin , Zheng Chunkai . The Vibrational and Rotational Motions Model of Nucleus(Ⅲ) Study of Superdeformed Bands in A～190 Region. Chinese Physics C, 1996, 20(6): 554-562.
[14]	Wu Chongshi , Zhou Zhining , Li Song . △I=4 Bifurcations in A～190 Superdeformed Bands. Chinese Physics C, 1996, 20(11): 1028-1033.
[15]	Wu Chongshi , Zhou Zhining , Li Song . △I/=4 Bifurcation in A~190 Superdeformed Bands. Chinese Physics C, 1996, 20(S4): 391-397.
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[17]	Zhang Li , Jin Genming , Zhao Jinhua , Yang Weifan , Yang Yongfeng , Zhao Zhizheng , Zheng Jiwen , Sun Xiurong , Wang Jicheng , Li Zongwei , Qin Zhi , Guo Guanghui . Identification of ²⁰⁸Hg. Chinese Physics C, 1994, 18(Z1): 1-8.
[18]	LEI Yi-An , ZENG Jin-Yan . Accurate Calculation of Superdeformed Bands in Hg and Pb. Chinese Physics C, 1993, 17(7): 636-643.
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[20]	ZHANG Jing-Ye , LI Bao-An . ON THE SHAPE COEXISTENCE REGION IN KRYPTON ISOTOPES. Chinese Physics C, 1984, 8(5): 633-636.

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ZHANG Jing-Ye. THE SHAPE COEXISTENCE IN ¹⁹⁰Hg[J]. Chinese Physics C, 1990, 14(4): 372-374.

ZHANG Jing-Ye. THE SHAPE COEXISTENCE IN ¹⁹⁰Hg[J]. Chinese Physics C, 1990, 14(4): 372-374. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

THE SHAPE COEXISTENCE IN ¹⁹⁰Hg

ZHANG Jing-Ye ^,

Corresponding author: ZHANG Jing-Ye,

Center of Theoretical Physics,CCASTWorld Lab and Institute of Modern Physics,Academia Sinica,Lanzhou

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1990-04-05

Abstract: The ground state Potential Energy Surface for nucleus ¹⁹⁰Hg was calculated in terms of Nilsson-Strutinsky method with standard κ,μ set and modified one.It is shown that there is a low-lying second minimum in prolate side except the known oblate minimum.The existence of such a prolate minimum,which is different from Total Routhian Surface calculation,may explain the recent observation of extra deformation band in ¹⁹⁰Hg.