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题名: Enhanced stability of superheavy nuclei due to high-spin isomerism
作者: Xu, FR ;  Zhao, EG ;  Wyss, R ;  Walker, PM
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2004
卷号: 92, 期号:25, 页码:-
关键词: ELEMENTS ;  FISSION ;  NO-254
学科分类: Physics
通讯作者: Xu, FR , Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
部门归属: Peking Univ, Sch Phys, Beijing 100871, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Natl Lab Heavy Ion Phys, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; Royal Inst Technol, AlbaNova Univ Ctr, S-10405 Stockholm, Sweden; Univ Surrey, Dept Phys, Surrey GU2 7XH, England
英文摘要: Configuration-constrained calculations of potential-energy surfaces in even-even superheavy nuclei reveal systematically the existence at low excitation energies of multiquasiparticle states with deformed axially symmetric shapes and large angular momenta. These results indicate the prevalence of long-lived, multiquasiparticle isomers. In a quantal system, the ground state is usually more stable than the excited states. In contrast, in superheavy nuclei the multiquasiparticle excitations decrease the probability for both fission and alpha decay, implying enhanced stability. Hence, the systematic occurrence of multiquasiparticle isomers may become crucial for future production and study of even heavier nuclei. The energies of multiquasiparticle states and their alpha decays are calculated and compared to available data.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000222266100015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14060
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,Zhao, EG,Wyss, R,et al. Enhanced stability of superheavy nuclei due to high-spin isomerism[J]. PHYSICAL REVIEW LETTERS,2004,92(25):-.
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