Superdeformed Band Terminations in the A=40 Mass Region

DONG Bao-Guo; MA Hai-Liang

Chinese Physics C> 2006, Vol. 30> Issue(S2) : 106-108

Superdeformed Band Terminations in the A=40 Mass Region

DONG Bao-Guo ^, ,
MA Hai-Liang

China Institute of Atomic Energy, Beijing 102413, China2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The superdeformed or highly deformed band terminations in ³⁸K, ³⁶Ar, ^32,34S and ³⁵Cl have been studied by the configuration dependent cranked Nilsson-Strutinsky approach. Some possible superdeformed band terminations were predicted, such as the π(d_5/2)^－2(f_7/2)²⊙ν(d_5/2)^－2(f_7/2)²([22,22]) configuration in ³²S with deformation about ε₂=0.61 and γ≈0° at spin I=0－10, especially the superdeformed band terminates at I=19 and about ε₂=0.39 (with ε₂=0.50 when I≤9) in ³⁸K, and all of them are favorable for observation. The tendency of these bands in energy with spin increasing favors the band termination, so superdeformed bands terminating would be smooth. The calculated superdeformed band is in good agreement with observed one in ³⁶Ar confirms that the calculated results are reliable.

References

[1]

. Afanasjev A V, Fossan D B, Lane G J et al. Phys. Rep.,1999, 322: 1-1242. Svensson C E, Macchiavelli A, Juodagalvis A et al. Phys.Rev. Lett., 2000, 85: 2693-26963. Ideguchi E, Sarantites D G, Reviol W et al. Phys. Rev.Lett., 2001, 87: 2225014. DONG B G, GUO H C, SHI Y J. Commun. Theor.Phys.(Beijing,China), 2005, 43: 509-5145. Bengtsson T, Ragnarsson I. Nucl. Phys., 1985, A436:146. Headly D M, Sheline R K, Ragnarsson I. Phys. Rev., 1994,C49: 222

[1]	LI Ming-Liang , ZHU Sheng-Jiang , XU Fu-Xin . Comparative Assignments of Spin of Superdeformed Bands. Chinese Physics C, 2005, 29(10): 954-959.
[2]	SHEN Cai-Wan , CHEN Yong-Shou , TU Ya , YU Shao-Ying , ZHANG Da-Li . Prediction and Formation Mechanism of Triaxial Superdeformed Nuclei for A～80. Chinese Physics C, 2005, 29(9): 875-880.
[3]	DI Yao-Min . Analysis by Synthesis of the Spin Assignment for the Superdeformed Single Bands in A≈190 Odd Nuclei. Chinese Physics C, 2003, 27(6): 503-506.
[4]	CHEN Yong-Jing , XU Fu-Xin . Research on Identical Bands of Superdeformed Nuclei. Chinese Physics C, 2001, 25(12): 1191-1196.
[5]	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.
[6]	WU Chong-Shi , LI Zhong-Hua . Spin Assignments of Superdeformed Bands in Europium. Chinese Physics C, 2001, 25(2): 121-128.
[7]	FANG Xiang-Zheng , RUAN Tu-Nan . Phenomenological Description of Superdeformed Bands. Chinese Physics C, 2001, 25(4): 315-321.
[8]	WU ChongShi . △I= 1 Staggering in Doubly Odd Superdeformed Nuclei. Chinese Physics C, 2000, 24(1): 66-70.
[9]	GUO JianYou , XU FuXin , RUAN TuNan . Description of Staggering Phenomenon of the Superdeformed Bands in SU_q(2) Symmetry. Chinese Physics C, 2000, 24(2): 181-184.
[10]	GUO JianYou , XU FuXin , RUAN TuNan . Research on Superdeformed Bands with Bohr-Mottelson's Formulas. Chinese Physics C, 2000, 24(9): 829-838.
[11]	LIU Zu-Hua . Search for the Hyperdeformed Nuclear States in the Actinide Nuclei. Chinese Physics C, 2000, 24(S1): 29-32.
[12]	LIU ZhuHua , YANG ChunXiang . Triaxial Superdeformed Identical Bands in Rare-Earth Nuclei. Chinese Physics C, 2000, 24(6): 541-545.
[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 . △I=1 Staggering in Odd Superdeformed Nuclei. Chinese Physics C, 1997, 21(7): 621-626.
[15]	Xing Zheng , Chen Xingqu . Analysis of Identical Bands for Odd-A Superdeformed Nuclei in A～190 Mass Region. Chinese Physics C, 1995, 19(4): 354-358.
[16]	Chen Xingqu , Xing Zheng . THE ANALYSIS OF SUPERDEFORMED BANDS IN THE PARTICLE-ROTOR MODEL. Chinese Physics C, 1994, 18(5): 448-453.
[17]	Xing Zheng , Wang Yangli , Chen Xingqu . A Simple Two-Band Mixing Model of Superdeformed Bands. Chinese Physics C, 1994, 18(1): 62-67.
[18]	CHEN Xingqu , XING Zheng . Examine the Method of Spin Determination in Superdeformed Bands on the Basis of Normal Deformation. Chinese Physics C, 1993, 17(12): 1102-1106.
[19]	XING Zheng , CHEN Xing-Qu . Phenomenological Analysis of Superdeformed Bands in Even-Even Nuclei. Chinese Physics C, 1991, 15(11): 1020-1024.
[20]	NING Ping-Zhi . THE ΛN INTERACTION AND THE HYPERNUCLEUS ^40_ΛCa. Chinese Physics C, 1987, 11(5): 708-712.

Access

Get Citation

DONG Bao-Guo and MA Hai-Liang. Superdeformed Band Terminations in the A=40 Mass Region[J]. Chinese Physics C, 2006, 30(S2): 106-108.

DONG Bao-Guo and MA Hai-Liang. Superdeformed Band Terminations in the A=40 Mass Region[J]. Chinese Physics C, 2006, 30(S2): 106-108. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-10-16
Revised: 1900-01-01

Article Metric

Article Views(3294)
PDF Downloads(671)
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

Superdeformed Band Terminations in the A=40 Mass Region

DONG Bao-Guo ^,
MA Hai-Liang

Corresponding author: DONG Bao-Guo,

China Institute of Atomic Energy, Beijing 102413, China2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

Received Date: 2006-10-16
Accepted Date: 1900-01-01
Available Online: 2006-01-03

Abstract: The superdeformed or highly deformed band terminations in ³⁸K, ³⁶Ar, ^32,34S and ³⁵Cl have been studied by the configuration dependent cranked Nilsson-Strutinsky approach. Some possible superdeformed band terminations were predicted, such as the π(d_5/2)^－2(f_7/2)²⊙ν(d_5/2)^－2(f_7/2)²([22,22]) configuration in ³²S with deformation about ε₂=0.61 and γ≈0° at spin I=0－10, especially the superdeformed band terminates at I=19 and about ε₂=0.39 (with ε₂=0.50 when I≤9) in ³⁸K, and all of them are favorable for observation. The tendency of these bands in energy with spin increasing favors the band termination, so superdeformed bands terminating would be smooth. The calculated superdeformed band is in good agreement with observed one in ³⁶Ar confirms that the calculated results are reliable.