ON THE DEFORMATION OF α-BAND

ZHANG Jing-Ye; ZHONG Ji-Quan

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2024年10月30日

Chinese Physics C> 1988, Vol. 12> Issue(4) : 554-556

ON THE DEFORMATION OF α-BAND

ZHANG Jing-Ye ^, ,
ZHONG Ji-Quan

Institute of Modern Physics,Academia Sinica,Lanzhou

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Abstract：
Recently a new positive parity rotational band was observed,its moment of inertia is a bit larger than of ground,β and γ bands for some even-even nuclei of the actinide and rare-earth regions,and also was negative parity band.These facts can be interpreted by vibron model and octuple deformation.By a simple geometrical figure the more stretch of the polarized core was quantitatively estimated when there was α-cluster in the surface region of the core.If there is this polarized effect,it ought to be behaved in the angular distribution of α-decay.

References

[1]

F. Iachello and A. D. Jaehson, Phys. Lctt., 108B(1982), 151.[2] H. J. Daley and B. R. Barred, Nucl. Phys., A449(i986), 256.[3] H. J. Daley, Dareshury Lab. Preprint, 1986, August, DL/NUC/P239 T[4] G. A. Leander and R. K. Sheline, Nucl. Phys., A413(1984), 375.[5] R. Bengtsson and S. Aberg, Phys. Lett., 172B(1986), 277.[6] A. Bohr and B. Mottelson, "Nuclear Structure", VII (1975), p82.

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[2]	DONG Bao-Guo , MA Hai-Liang . Superdeformed Band Terminations in the A=40 Mass Region. Chinese Physics C, 2006, 30(S2): 106-108.
[3]	LI Ming-Liang , ZHU Sheng-Jiang , XU Fu-Xin . Comparative Assignments of Spin of Superdeformed Bands. Chinese Physics C, 2005, 29(10): 954-959.
[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.
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[7]	FANG Xiang-Zheng , RUAN Tu-Nan . Phenomenological Description of Superdeformed Bands. Chinese Physics C, 2001, 25(4): 315-321.
[8]	GUO JianYou , XU FuXin , RUAN TuNan . Research on Superdeformed Bands with Bohr-Mottelson's Formulas. Chinese Physics C, 2000, 24(9): 829-838.
[9]	LIU Yu-Xin . Algebraic Model Description of High Spin Superdeformed Bands. Chinese Physics C, 2000, 24(S1): 50-53.
[10]	WU ChongShi . △I= 1 Staggering in Doubly Odd Superdeformed Nuclei. Chinese Physics C, 2000, 24(1): 66-70.
[11]	LIU ZhuHua , YANG ChunXiang . Triaxial Superdeformed Identical Bands in Rare-Earth Nuclei. Chinese Physics C, 2000, 24(6): 541-545.
[12]	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.
[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]	Chen Xingqu , Xing Zheng , Wang Yangli . Phenomenological Analysis of Superdeformed Bands in the Mass～150 Region. Chinese Physics C, 1994, 18(3): 256-262.
[18]	Xing Zheng , Wang Yangli , Chen Xingqu . A Simple Two-Band Mixing Model of Superdeformed Bands. Chinese Physics C, 1994, 18(1): 62-67.
[19]	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.
[20]	XING Zheng , CHEN Xing-Qu . Phenomenological Analysis of Superdeformed Bands in Even-Even Nuclei. Chinese Physics C, 1991, 15(11): 1020-1024.

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ZHANG Jing-Ye and ZHONG Ji-Quan. ON THE DEFORMATION OF α-BAND[J]. Chinese Physics C, 1988, 12(4): 554-556.

ZHANG Jing-Ye and ZHONG Ji-Quan. ON THE DEFORMATION OF α-BAND[J]. Chinese Physics C, 1988, 12(4): 554-556. 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

ON THE DEFORMATION OF α-BAND

ZHANG Jing-Ye ^,
ZHONG Ji-Quan

Corresponding author: ZHANG Jing-Ye,

Institute of Modern Physics,Academia Sinica,Lanzhou

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1988-08-05

Abstract: Recently a new positive parity rotational band was observed,its moment of inertia is a bit larger than of ground,β and γ bands for some even-even nuclei of the actinide and rare-earth regions,and also was negative parity band.These facts can be interpreted by vibron model and octuple deformation.By a simple geometrical figure the more stretch of the polarized core was quantitatively estimated when there was α-cluster in the surface region of the core.If there is this polarized effect,it ought to be behaved in the angular distribution of α-decay.