Energy Staggering in the High K Rotational Band

Liao Jizhi

Chinese Physics C> 1998, Vol. 22> Issue(4) : 351-358

Energy Staggering in the High K Rotational Band

Liao Jizhi ^,

Department of Physics, Sichuan University, Chendu 610064

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Abstract：
Introducing the staggering index S(I) to describe the energy spectra of the λrigid and λ-soft nuclei, it becomes very clear that there are two kinds of energy staggering for which the S(I) -I plots have opposite zigzag behavior. They can be described using the axially asymmebtric rotor model with vibration-rotation coupling and the interaction boson model O(6) limit with three-body potential or the angular momentum projection deformed Hartree-Fock method (PDHF ), respectively. The theoretical predictions for the characteristics of the staggering in high K rotational band are given. Analyzing the experimental data of high K band spectra of the nuclei in the mass range. 160, it is demoastrated that the energy staggering does exist in the high K band. At the same time, some evidences for the shape transition indicated by zigzag phase change of S(I)-I plots are undoubtedly found.

References

[1]

Casten R F,Von Brentano.P phys.Lett.,1985,152（1）:22-28[2]Zamfir N V,Casten R F. Phys.Lett,1991,B260（3,4）:265-270[3]Liao Jizhi.Phys.Rev.,1995,C5I（1）:141-146[4]HataK,Sun Y.Nucl.phys.,1992.A537（1）:77-99[5]Casten R F,Zamfir N V,Von Brentano P et al.Phys.Lett.,199l,B265（1）:9-l3[6]Liao Jizhi,Wang Huang-sheng.Phys.Rev.,1994,C49（5）:2465-2471[7]Wang Huangsheng,Liao Jizhi.High Energy Phys.and Nucl,Phys.（in Chinese）,1992,16（10）:954-960:1994.18（1）:91-96（王黄生，廖继志。高能物理与核物理，1992,16（10）:954-960;1994,18（1）:91-96）[8]Liao Jizhi.Chinese Physics,1987,7（2）:475-480[9]Liao Jizhi.Chin.Jour.of Nucl.Phys.（in Chinese）,1987,9（3）:220-229（寥继志。原子核物理，1987,9（3）:220-229）[l0]Liao Jizhi.High Energy Phys.and Nucl.Phys.（in Chinese）,1987,11（5）:682-689（寥继志。高能物理与核物理，1987,11（5）:682-689）[11]Liao Jizhi,Journal of Sichuan University（in Chinese）,1995,32（4）:391-396（寥继志。四川大学学报，1995,32（4）:391-396）[12]Mallman C A.Nucl.Phys.,1961,24（3）:535-575[13]schiffer K et al.z.Phys.,1987,A327（2）251-165[14].Chunmei z.Nucl.Data sheets,1987,50（2）:351-448[15]Shurshikov E N.Nucl.Data Sheets,1986,47（2）:433-539[16]Sood P C et al.At.Data Nucl.Data Tables,1991,47（I）:89-173[17]Singh B.Nuct.Data sheets,1992,66（4）:623-703

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Liao Jizhi. Energy Staggering in the High K Rotational Band[J]. Chinese Physics C, 1998, 22(4): 351-358.

Liao Jizhi. Energy Staggering in the High K Rotational Band[J]. Chinese Physics C, 1998, 22(4): 351-358. shu

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

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Energy Staggering in the High K Rotational Band

Corresponding author: Liao Jizhi,

Department of Physics, Sichuan University, Chendu 610064

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1998-04-05

Abstract: Introducing the staggering index S(I) to describe the energy spectra of the λrigid and λ-soft nuclei, it becomes very clear that there are two kinds of energy staggering for which the S(I) -I plots have opposite zigzag behavior. They can be described using the axially asymmebtric rotor model with vibration-rotation coupling and the interaction boson model O(6) limit with three-body potential or the angular momentum projection deformed Hartree-Fock method (PDHF ), respectively. The theoretical predictions for the characteristics of the staggering in high K rotational band are given. Analyzing the experimental data of high K band spectra of the nuclei in the mass range. 160, it is demoastrated that the energy staggering does exist in the high K band. At the same time, some evidences for the shape transition indicated by zigzag phase change of S(I)-I plots are undoubtedly found.

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Energy Staggering in the High K Rotational Band

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