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Shell model method for Gamow-Teller transitions in heavy, deformed nuclei
Gao, Zao-Chun; Sun, Yang; Chen, Y. -S.; Gao, ZC , Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA
2006
发表期刊PHYSICAL REVIEW C
ISSN0556-2813
卷号74期号:5页码:-
摘要A method for calculation of Gamow-Teller transition rates is developed by using the concept of the Projected Shell Model (PSM). The shell model basis is constructed by superimposing angular-momentum-projected multiquasiparticle configurations, and nuclear wave functions are obtained by diagonalizing the two-body interactions in these projected states. Calculation of transition matrix elements in the PSM framework is discussed in detail, and the effects caused by the Gamow-Teller residual forces and by configuration-mixing are studied. With this method, it may become possible to perform a state-by-state calculation for beta-decay and electron-capture rates in heavy, deformed nuclei at finite temperatures. Our first example indicates that, while experimentally known Gamow-Teller transition rates from the ground state of the parent nucleus are reproduced, stronger transitions from some low-lying excited states are predicted to occur, which may considerably enhance the total decay rates once these nuclei are exposed to hot stellar environments.
部门归属Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA; Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA; Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA; Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA; China Inst Atom Energy, Beijing 102413, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Weak-interaction Rates Intermediate-mass Nuclei Double-beta Decay Rate Tables Elements Environments Vibrations Stability Isomer
学科领域Physics
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收录类别SCI
WOS记录号WOS:000242409500012
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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5863
专题理论物理所1978-2010年知识产出
通讯作者Gao, ZC , Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA
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Gao, Zao-Chun,Sun, Yang,Chen, Y. -S.,et al. Shell model method for Gamow-Teller transitions in heavy, deformed nuclei[J]. PHYSICAL REVIEW C,2006,74(5):-.
APA Gao, Zao-Chun,Sun, Yang,Chen, Y. -S.,&Gao, ZC , Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA.(2006).Shell model method for Gamow-Teller transitions in heavy, deformed nuclei.PHYSICAL REVIEW C,74(5),-.
MLA Gao, Zao-Chun,et al."Shell model method for Gamow-Teller transitions in heavy, deformed nuclei".PHYSICAL REVIEW C 74.5(2006):-.
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