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Ma, ZY; Chen, BQ; Ma, ZY , China Inst Atom Energy, Beijing 102413, Peoples R China.
Gamow-Teller resonance of Zr-90 in a relativistic approach
Source PublicationCHINESE PHYSICS LETTERS
KeywordRandom-phase-approximation Mean-field Theory Continuum Strength Nuclei Nb-90
AbstractWe 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.
2003
ISSN0256-307X
Volume20Issue:7Pages:1025-1027
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13266
Collection理论物理所科研产出_SCI论文
Corresponding AuthorMa, ZY , China Inst Atom Energy, Beijing 102413, Peoples R China.
Recommended Citation
GB/T 7714
Ma, ZY,Chen, BQ,Ma, ZY , China Inst Atom Energy, Beijing 102413, Peoples R China.. Gamow-Teller resonance of Zr-90 in a relativistic approach[J]. CHINESE PHYSICS LETTERS,2003,20(7):1025-1027.
APA Ma, ZY,Chen, BQ,&Ma, ZY , China Inst Atom Energy, Beijing 102413, Peoples R China..(2003).Gamow-Teller resonance of Zr-90 in a relativistic approach.CHINESE PHYSICS LETTERS,20(7),1025-1027.
MLA Ma, ZY,et al."Gamow-Teller resonance of Zr-90 in a relativistic approach".CHINESE PHYSICS LETTERS 20.7(2003):1025-1027.
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