Configuration Structure of Superdeformed Bands in A～190 Mass Region

LIU Shu-Xin

Chinese Physics C> 2005, Vol. 29> Issue(9) : 871-874

Configuration Structure of Superdeformed Bands in A～190 Mass Region

LIU Shu-Xin ^,

School of Physics, Peking University, Beijing 100871, ChinaCenter of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Using the particle-number conservation method for treating the cranked shell model with pairing interaction, we systematically investigate the variations of the moments of inertia, the angular moment alignment and the signature splitting with rotational frequencies for superdeformed bands in the A～190 mass region. According to our calculated results, we provide a global description of the configuration structure of superdeformed bands in the A～190 mass region. Most superdeformed bands are located at the strong-coupling orbits, such as neutron [512]5/2, [624]9/2. A few superdeformed bands lie on high j orbits, i.e., neutron [761]3/2, [752]5/2. Our calculated configuration assignments give a satisfactorily explanation to the general behavior, the anomalous change and the band crossing of superdeformed bands in the A～190 mass region.

References

[1]

. Janssens R V F, Khoo T L. Annu. Rev. Nucl. Part. Sci.,1991, 41: 3212. LIU S X, ZENG J Y. Phys. Rev., 1998, C58: 32663. Riley M A et al. Nucl. Phys., 1990, A512: 1784. Moore E F et al. Phys. Rev. Lett., 1990, 64: 31275. YE D et al. Phys. Rev., 1990, C41: R136. LIU S X, ZENG J Y, ZHAO E G. Phys. Rev., 2002, C66:0243207. LIU S X, ZENG J Y. Nucl. Phys., 2004, A736: 2698. LIU S X, ZENG J Y. Phys. Rev., 2002, C66: 0673019. LIU S X, XIN X B, ZENG J Y. J. Phys., 2000, G26: 7910. LIU Shu-Xin, YU Lei, ZENG Jin-Yan. Chin. Phys. Lett.,2000, 17: 871

[1]	LI Ming-Liang , ZHU Sheng-Jiang . Property Analysis and Spin Assignments Superdeformed Bands in A≈150 Region. Chinese Physics C, 2006, 30(11): 1078-1082.
[2]	LI Ming-Liang , ZHU Sheng-Jiang , XU Fu-Xin . Comparative Assignments of Spin of Superdeformed Bands. Chinese Physics C, 2005, 29(10): 954-959.
[3]	YU Shao-Ying , TU Ya , CHEN Yong-Shou , SHEN Cai-Wan . Theoretical Research on Traxial Superdeformed Band and High Spin State Nuclei in ¹⁶⁸Lu. Chinese Physics C, 2005, 29(3): 258-262.
[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]	WU Chong-Shi . Signature Partners in Superdeformed ¹⁴⁹Tb. Chinese Physics C, 2001, 25(3): 205-211.
[8]	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.
[9]	FANG XiangZheng , RUAN TuNan . Description of Superdeformed Bands in ¹⁴⁸Gd in q-deformed Moment of Inertia. Chinese Physics C, 2000, 24(3): 269-274.
[10]	WU ChongShi . △I= 1 Staggering in Doubly Odd Superdeformed Nuclei. Chinese Physics C, 2000, 24(1): 66-70.
[11]	Shen Caiwan , Luo Wendong , Chen Yongshou . Criterion of Identical Bands and Quantization of Incremental Alignments in Superdeformed Nuclei. Chinese Physics C, 1999, 23(3): 281-288.
[12]	Li Long . Two Kinds of Signature Splittings in Odd-A Superdeformed Nuclei. Chinese Physics C, 1998, 22(8): 732-738.
[13]	Xing Zheng , Wang Zixing , Chen Xingqu , Xu Jinzhang . Influence of Configuration Admixtures on Superdeformed Triaxial Bands. Chinese Physics C, 1998, 22(11): 1029-1034.
[14]	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.
[15]	Zhu Zhiyuan . Identical Bands in Superdeformed Nuclei With the Cranked Relativistic Mean Field Method. Chinese Physics C, 1996, 20(5): 448-454.
[16]	Wu Chongshi , Zhou Zhining , Li Song . △I=4 Bifurcations in A～190 Superdeformed Bands. Chinese Physics C, 1996, 20(11): 1028-1033.
[17]	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.
[18]	XING Zheng , CHEN Xing-Qu . Phenomenological Analysis of Superdeformed Bands in Even-Even Nuclei. Chinese Physics C, 1991, 15(11): 1020-1024.
[19]	ZHANG Jing-Ye . THE ROLE OF NEUTRON i_13/2 CONFIGURATION IN SUPERD EFORMED STATES IN A=120—140 MASS REGION. Chinese Physics C, 1990, 14(9): 855-858.
[20]	LUO Yi-Xiao , ZHONG Ji-Quan . THE SUPERDEFORMED BANDS IN Nd AND Ce NUCLEI. Chinese Physics C, 1989, 13(7): 632-641.

Access

Get Citation

LIU Shu-Xin. Configuration Structure of Superdeformed Bands in A～190 Mass Region[J]. Chinese Physics C, 2005, 29(9): 871-874.

LIU Shu-Xin. Configuration Structure of Superdeformed Bands in A～190 Mass Region[J]. Chinese Physics C, 2005, 29(9): 871-874. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2005-01-21
Revised: 1900-01-01

Article Metric

Article Views(3302)
PDF Downloads(542)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Configuration Structure of Superdeformed Bands in A～190 Mass Region

LIU Shu-Xin ^,

Corresponding author: LIU Shu-Xin,

School of Physics, Peking University, Beijing 100871, ChinaCenter of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000, China

Received Date: 2005-01-21
Accepted Date: 1900-01-01
Available Online: 2005-09-05

Abstract: Using the particle-number conservation method for treating the cranked shell model with pairing interaction, we systematically investigate the variations of the moments of inertia, the angular moment alignment and the signature splitting with rotational frequencies for superdeformed bands in the A～190 mass region. According to our calculated results, we provide a global description of the configuration structure of superdeformed bands in the A～190 mass region. Most superdeformed bands are located at the strong-coupling orbits, such as neutron [512]5/2, [624]9/2. A few superdeformed bands lie on high j orbits, i.e., neutron [761]3/2, [752]5/2. Our calculated configuration assignments give a satisfactorily explanation to the general behavior, the anomalous change and the band crossing of superdeformed bands in the A～190 mass region.