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Triaxial superdeformed bands in odd-odd (160 similar to 168)Lu isotopes
Ya, Tu; Chen, Y. S.; Yu, S. Y.; Shen, C. W.; Gao, Z. C.; Chen, Y. J.; Liu, L.; Ya, T , Shen Yang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Peoples R China
2010
发表期刊NUCLEAR PHYSICS A
ISSN0375-9474
卷号848期号:40972页码:260-278
摘要The triaxial superdeformed rotational bands in the odd odd (16 similar to 168)Lu isotopes are investigated by performing the configuration dependent three-dimensional total routhian surface calculations. About fifty low lying triaxial superdeformed bands have been found for these odd odd nuclei within the excitation energy of 3 MeV above the normal deformed yrast bands. The calculated equilibrium elongation, triaxial and hexadecapole deformations for these triaxial superdeformed bands are close to the values of epsilon(2) similar to 0.4, gamma similar to 20 degrees and epsilon(4) similar to 0.03, respectively. The configurations of calculated triaxial superdeformed bands have been assigned based on the total routhian surface calculations and the analysis of quasiparticle routhians in the rotating frame. The observed yrast triaxial superdeformed band of (164)Lu, where the linking transitions between superdeformed and normal deformed states are measured, have been reproduced by the present calculation in the relative energy to the normal deformed band. We show that the stability of superdeformed triaxial shapes in the odd-odd Lu isotopes is similar to that presented in odd even Lu nuclei, and thus the wobbling excitations could be expected to occur in odd odd Lu isotopes. The deformation driving effect of the proton high-j low-K orbit play an important role in the formation of the triaxial superdeformed states in both odd odd and odd even Lu isotopes, while the shell effect is a fundamental factor for the triaxial superdeformed shapes. The shell gaps and the positions of the deformation driving intruder orbits which are responsible for the triaxial superdeformed minima have been localized, particularly, the neutron N = 94 gap and the position of the proton [660]1/2 orbit in the deformed single particle diagram provide the basis for a microscopic understanding of the observed triaxial superdeformed bands in the mass region. (C) 2010 Elsevier B.V. All rights reserved.
部门归属[Ya, T; Liu, L] Shen Yang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Peoples R China; [Chen, YS; Gao, ZC; Chen, YJ] China Inst Atom Energy, Beijing 102413, Peoples R China; [Chen, YS] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Yu, SY; Shen, CW] Huzhou Teachers Coll, Sch Sci, Huzhou 313000, Peoples R China
关键词Particle-hole Excitations Wobbling Excitations Nuclei Lu-165 Phonon Mode
学科领域Physics
资助者National Nature Science Foundation of China[1047205, 19835010, 10775182, 10047001, 10975051, 10979024, 10905021]; Chinese Major State Basic Research Development Program[2007CB815000]; Chinese Academy of Sciences[KJCX2-SW-N02]; Education Ministry of China[209053]; Natural Science Foundation of Zhejiang province, China[Y6090210] ; National Nature Science Foundation of China[1047205, 19835010, 10775182, 10047001, 10975051, 10979024, 10905021]; Chinese Major State Basic Research Development Program[2007CB815000]; Chinese Academy of Sciences[KJCX2-SW-N02]; Education Ministry of China[209053]; Natural Science Foundation of Zhejiang province, China[Y6090210] ; National Nature Science Foundation of China[1047205, 19835010, 10775182, 10047001, 10975051, 10979024, 10905021]; Chinese Major State Basic Research Development Program[2007CB815000]; Chinese Academy of Sciences[KJCX2-SW-N02]; Education Ministry of China[209053]; Natural Science Foundation of Zhejiang province, China[Y6090210] ; National Nature Science Foundation of China[1047205, 19835010, 10775182, 10047001, 10975051, 10979024, 10905021]; Chinese Major State Basic Research Development Program[2007CB815000]; Chinese Academy of Sciences[KJCX2-SW-N02]; Education Ministry of China[209053]; Natural Science Foundation of Zhejiang province, China[Y6090210]
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收录类别SCI
资助者National Nature Science Foundation of China[1047205, 19835010, 10775182, 10047001, 10975051, 10979024, 10905021]; Chinese Major State Basic Research Development Program[2007CB815000]; Chinese Academy of Sciences[KJCX2-SW-N02]; Education Ministry of China[209053]; Natural Science Foundation of Zhejiang province, China[Y6090210] ; National Nature Science Foundation of China[1047205, 19835010, 10775182, 10047001, 10975051, 10979024, 10905021]; Chinese Major State Basic Research Development Program[2007CB815000]; Chinese Academy of Sciences[KJCX2-SW-N02]; Education Ministry of China[209053]; Natural Science Foundation of Zhejiang province, China[Y6090210] ; National Nature Science Foundation of China[1047205, 19835010, 10775182, 10047001, 10975051, 10979024, 10905021]; Chinese Major State Basic Research Development Program[2007CB815000]; Chinese Academy of Sciences[KJCX2-SW-N02]; Education Ministry of China[209053]; Natural Science Foundation of Zhejiang province, China[Y6090210] ; National Nature Science Foundation of China[1047205, 19835010, 10775182, 10047001, 10975051, 10979024, 10905021]; Chinese Major State Basic Research Development Program[2007CB815000]; Chinese Academy of Sciences[KJCX2-SW-N02]; Education Ministry of China[209053]; Natural Science Foundation of Zhejiang province, China[Y6090210]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/4992
专题理论物理所1978-2010年知识产出
通讯作者Ya, T , Shen Yang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Peoples R China
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GB/T 7714
Ya, Tu,Chen, Y. S.,Yu, S. Y.,et al. Triaxial superdeformed bands in odd-odd (160 similar to 168)Lu isotopes[J]. NUCLEAR PHYSICS A,2010,848(40972):260-278.
APA Ya, Tu.,Chen, Y. S..,Yu, S. Y..,Shen, C. W..,Gao, Z. C..,...&Ya, T , Shen Yang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Peoples R China.(2010).Triaxial superdeformed bands in odd-odd (160 similar to 168)Lu isotopes.NUCLEAR PHYSICS A,848(40972),260-278.
MLA Ya, Tu,et al."Triaxial superdeformed bands in odd-odd (160 similar to 168)Lu isotopes".NUCLEAR PHYSICS A 848.40972(2010):260-278.
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