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题名: Gamow-Teller resonance of Zr-90 in a relativistic approach
作者: Ma, ZY ;  Chen, BQ
刊名: CHINESE PHYSICS LETTERS
出版日期: 2003
卷号: 20, 期号:7, 页码:1025-1027
关键词: RANDOM-PHASE-APPROXIMATION ;  MEAN-FIELD THEORY ;  CONTINUUM ;  STRENGTH ;  NUCLEI ;  NB-90
学科分类: Physics
通讯作者: Ma, ZY , China Inst Atom Energy, Beijing 102413, Peoples R China.
部门归属: China Inst Atom Energy, Beijing 102413, Peoples R China; Natl Lab Heavy Ion Accelerator Lanzhou, 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 establish the formalism of nuclear spin-isospin excitations, especially the Gamow-Teller resonance in a fully consistent relativistic random-phase approximation. A relativistic form of the Landau-Migdal parameter g' is adopted as a residual spin-isospin correlation force. In the non-relativistic limit it reproduces the excitation energy of the giant Gamow-Teller resonance state obtained in the non-relativistic model. The Gamow-Teller resonance for finite nuclei is investigated in a relativistic approach for the first time. It is found that the Ikeda sum rule of Zr-90 is quenched about 8% in the Hartree as well as the correlated strengths due to the poles of the negative Dirac states at energies above 1 GeV.
收录类别: SCI
WOS记录号: WOS:000184088000015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13266
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:
Ma, ZY,Chen, BQ. Gamow-Teller resonance of Zr-90 in a relativistic approach[J]. CHINESE PHYSICS LETTERS,2003,20(7):1025-1027.
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