Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes

WU XingJu; LIANG YuSheng; XU JinZhang; CHEN XingQu; XING Zheng

Chinese Physics C> 2000, Vol. 24> Issue(4) : 342-346

Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Department of Modern Physics, Lanzhou University, Lanzhou 730000, China3 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China4 Physics Department, Liu' an Teacher's College, Anhui 237012, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Using Particle-Rotor Model, the energy spectra and electromagnetic transitions of the negative-parity yrast states, before and after the band-crossing in odd-A Lu isotopes, are investigated and compared with the experimental data. It is noted that before and after the band-crossing the moment of inertia of the core is a smooth function of the total angular mo-mentum I and can be described by the ah formula; The triaxial deformation before and after the band-crossing determined from the calculations is appreciably different for ^161,163,165Lu, while it is more or less similar for ¹⁶⁷Lu.

References

[1]

YU C H, Riley M A, Garrentt J D et al. Nucl. Phys., 1988, A489(3):477–507 2 Schmitz W, YANG C X, Hubel H et al. Nucl. Phys.,1992, A539(1): 112–1363 Frandsen P, Chapman R, Garrett J D et al. Nucl.Phys.,1988, A489(3):508–524 4 YU C H, Hagemann G B, Espino J M et al. Nucl.Phys., 1990, A511(1): 157–194 5 Hamamoto I, Sagawa H. Phys.Lett., 1988, B201(4):415–4196 Hamamoto I, Mottelson B. Phys.Lett.,1986, B167(4): 370–374 7 Schnack–Petersen H, Bengtsson R, Bark R A et al. Nucl. Phys.,1995, A594(2): 175–202 8 WU X G, YANG C X, ZHENG H et al. Chin. Phys. Lett., 1997, 14(1): 17–19 9 WU C S, ZENG J Y. High Energy Physics and Nuclear Physics (in Chinese), 1984, 8(2) 1219–226;8(4): 445–452 (吴崇试,曾谨言.高能物理与核物理,1984,8(2):219–226;8(4):445–452)10 CHEN X Q, XING Z. J. Phys., 1993, G19(11):1869–1877

[1]	ZHANG Ao , LIU Yan-Rui , HUANG Peng-Zhi , DENG Wei-Zhen , CHEN Xiao-Lin , ZHU Shi-Lin . JP=21－Pentaquarks in Jaffe and Wilczek's Diquark Model. Chinese Physics C, 2005, 29(3): 250-257.
[2]	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.
[3]	SHEN Shui-Fa , GU Jia-Hui , SHEN Wen-Qing . Calculation of Yrast Bands for Odd-Odd Nuclei ^80,82Rb in A≈80 Mass Region. Chinese Physics C, 2004, 28(3): 274-279.
[4]	XIAO Shu-Dong , ZHU Sheng-Jiang , YANG Li-Ming , ZHANG Zheng , JIANG Zhuo , CHE Xing-Lai , U Yong-Nan . High-Spin States and Negative Parity Levels in Neutron-Rich ^116,118,120Cd Nuclei. Chinese Physics C, 2004, 28(1): 37-41.
[5]	HE Xiao-Tao , LIU Shu-Xin , YU Shao-Ying , ZENG Jin-Yan , ZHAO An-Guang . Identical Superdeformed Bands in Tl Isotope. Chinese Physics C, 2004, 28(S1): 36-39.
[6]	HE Chuang-Ye , WEN Shu-Xian , ZHU Li-Hua , WANG Zhi-Min , LI Guang-Sheng , MA Rui-Gang , WU Xiao-Guang , YUAN Guan-Jun , YANG Chun-Xiang , WANG Yue , ZHANG Zhen-Long , MENG Rui , , , . Signature Splitting and Inversion and Back Bending in Negative Sideband in ⁸⁰Rb. Chinese Physics C, 2003, 27(9): 784-788.
[7]	XU Yan-Bing , LIAO Ji-Zhi . Studies on the HF States and the Negative-Parity Spectra of Even Even Cd Nuclei. Chinese Physics C, 2003, 27(2): 142-146.
[8]	XU Yan-Bing , YANG Wei-Fan , YUAN Shuang-Gui , XIAO Yong-Hou , PAN Qiang-Yan , LI Ying-Jun . Measurement of the Cross Sections for Ba Isotopes. Chinese Physics C, 2002, 26(6): 589-593.
[9]	ZENG Guo-Mo , SONG Hui-Chao . Energy Level Structure of Odd-A Tm Isotopes in A≈160 Region. Chinese Physics C, 2002, 26(10): 1021-1026.
[10]	XU Yan-Bing , LIAO Ji-Zhi . Studies on the HF States and the Negative Parity Bands of Even Even Ge and Se Nuclei. Chinese Physics C, 2002, 26(6): 613-619.
[11]	Liu Zhong , Sun Xiangfu , Guo Yingxiang , Lei Xiangguo , Chen Xinfeng , Zhou Xiaohong , Zhang Yuhu , Jin Hanjuan , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang , Liu Xiang . Lifetime Measurement of the Negative-Parity Isomers in ¹¹⁷Xe. Chinese Physics C, 1997, 21(10): 881-885.
[12]	Zhang Yuhu , Zhao Qingzhong , Zhou Xiaohong , Sun Xiangfu , Lei Xiangguo , Guo Yingxiang , Liu Zhong , Chen Xinfeng , Zhu Yongtai , Wen Shuxian , Yuan Guanjun , Liu Xiangan . High-Spin States in ¹⁶²Lu and Signature lnversion of Yrast Bands in Doubly Odd Nuclei Around A=160 Mass Region. Chinese Physics C, 1997, 21(5): 393-401.
[13]	Zhang Yuhu , Zhao Qingzhong , Zhou Xiaohong , Sun Xiangfu , Lei Xiangguo , Guo Yingxiang , Liu Zhong , Chen Xinfeng , Zhu Yongtai , Wen Shuxian , Yuan Guanjun , Liu Xiangan . High-Spin States in ¹⁶²Lu and Signature Inversion of Yrast Bands in Doubly Odd Nuclei Around the A=160 Mass Region. Chinese Physics C, 1997, 21(S2): 15-24.
[14]	Ma Yingjun , Zhao Guangyi , Wang Zhe , Zheng Hua , Liu Yunzuo , Zhou Shangui , Wu Xiaoguang , Yang Chunxiang . Yrast Band and Four-Quasiparticle Band in Odd-Odd ¹⁶²Lu Nucleus. Chinese Physics C, 1997, 21(11): 970-975.
[15]	Dong Baoguo , Shen Caiwan , Chen Yoagshou . Study of Odd-A Tm Isotopic Chain Properties of Decoupling parameter of [411 1/2] Band. Chinese Physics C, 1997, 21(9): 838-843.
[16]	Shi Zongren , Wan Shuying . Negative Parity States of Collective Motion in Actinide Nuclei. Chinese Physics C, 1995, 19(5): 438-446.
[17]	ZHANG Ji-Ye . On the Difference of High Spin Band Structure Between I and Ce Isotopes. Chinese Physics C, 1993, 17(8): 734-738.
[18]	WU Xing-Ju , CHEN Xing-Qu , XING Zheng . The Study of the Anomalous Transition Rates of ¹⁶¹Lu. Chinese Physics C, 1991, 15(7): 655-659.
[19]	PAN Wu-Ming , LIU Yong , QI Hui . MICROSCOPIC STUDY OF QUASI-ROTATIONAL BANDS IN DOUBLE-EVEN Sn NUCLEI. Chinese Physics C, 1990, 14(1): 49-55.
[20]	WU RUA-CHUAN . INTERACTING BOSON MODEL FOR ROTATIONAL STATES OF NEGATIVE PARITY. Chinese Physics C, 1982, 6(5): 601-608.

Access

Get Citation

WU XingJu, LIANG YuSheng, XU JinZhang, CHEN XingQu and XING Zheng. Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes[J]. Chinese Physics C, 2000, 24(4): 342-346.

WU XingJu, LIANG YuSheng, XU JinZhang, CHEN XingQu and XING Zheng. Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes[J]. Chinese Physics C, 2000, 24(4): 342-346. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1999-01-26
Revised: 1900-01-01

Article Metric

Article Views(2886)
PDF Downloads(633)
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

Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes

Corresponding author: WU XingJu,

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Department of Modern Physics, Lanzhou University, Lanzhou 730000, China3 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China4 Physics Department, Liu' an Teacher's College, Anhui 237012, China

Received Date: 1999-01-26

Accepted Date: 1900-01-01

Available Online: 2000-04-05

Abstract: Using Particle-Rotor Model, the energy spectra and electromagnetic transitions of the negative-parity yrast states, before and after the band-crossing in odd-A Lu isotopes, are investigated and compared with the experimental data. It is noted that before and after the band-crossing the moment of inertia of the core is a smooth function of the total angular mo-mentum I and can be described by the ah formula; The triaxial deformation before and after the band-crossing determined from the calculations is appreciably different for ^161,163,165Lu, while it is more or less similar for ¹⁶⁷Lu.

HTML

Reference (1)

Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article