Shell model method for Gamow-Teller transitions in heavy, deformed nuclei

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	Shell model method for Gamow-Teller transitions in heavy, deformed nuclei
	Sun, Yang; Gao, Zao-Chun; Chen, Y. -S.; Gao, ZC , Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA
刊名	PHYSICAL REVIEW C
	2006
卷号	74 期号:5 页码:-
关键词	Weak-interaction Rates Intermediate-mass Nuclei Double-beta Decay Rate Tables Elements Environments Vibrations Stability Isomer
ISSN号	0556-2813
英文摘要	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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000242409500012
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5863]
专题	理论物理研究所_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
推荐引用方式 GB/T 7714	Sun, Yang,Gao, Zao-Chun,Chen, Y. -S.,et al. Shell model method for Gamow-Teller transitions in heavy, deformed nuclei[J]. PHYSICAL REVIEW C,2006,74(5):-.
APA	Sun, Yang,Gao, Zao-Chun,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	Sun, Yang,et al."Shell model method for Gamow-Teller transitions in heavy, deformed nuclei".PHYSICAL REVIEW C 74.5(2006):-.