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题名: High-spin excitations of atomic nuclei
作者: Xu, FR
刊名: HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
出版日期: 2004
卷号: 28, 期号:0, 页码:11-15
关键词: INTERACTING BOSON MODEL ;  SIGNATURE INVERSION ;  ROTATIONAL BANDS ;  STATES ;  TRIAXIALITY ;  ISOTOPES
学科分类: Physics
通讯作者: Xu, FR , Peking Univ, Sch Phys, MOE Key Lab, Beijing 100871, Peoples R China.
部门归属: Peking Univ, Sch Phys, MOE Key Lab, Beijing 100871, Peoples R China; Natl Lab Heavy Ion Phys, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We used the cranking shell model to investigate the high-spin motions and structures of atomic nuclei. We focus the collective rotations of the A similar to 50, 80 and 110 nuclei. The A similar to 50 calculations show complicated g spectroscopy, which can have significant vibration effects. The A approximate to 80 N approximate to Z nuclei show rich shape coexistences with prolate and oblate rotational bands. The A approximate to 110 nuclei near the r-process path can have well-deformed oblate shapes that become yrast and more stable with increasing rotational frequency. As another important investigation, we used the configuration-constrained adiabatic method to calculate the multi-quasiparticle high-K states in the A similar to 130, 180 and superheavy regions. The calculations show significant shape polarizations due to quasi-particle excitations for soft nuclei, which should be considered in the investigations of high-K states. We predicted some important high-K isomers, e.g., the 8(-) isomers in the unstable nuclei of Dy-140 and Pb-188, which have been confirmed in experiments. In superheavy nuclei, our calculations show systematic existence of high-K states. The high-K excitations can increase the productions of synthesis and the survival probabilities of superheavy nuclei.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000229226900003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13937
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Xu, FR. High-spin excitations of atomic nuclei[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2004,28(0):11-15.
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