Residual interactions and the K-mixing-induced fast decay of the three-quasiparticle isomer in Tm-171

doi:10.1103/PhysRevC.85.024324

	Residual interactions and the K-mixing-induced fast decay of the three-quasiparticle isomer in Tm-171
	Chen, Fang-Qi 1; Liu, Yan-Xin 2,3,4; Sun, Yang 1,2; Walker, P. M.5; Dracoulis, G. D.6
刊名	PHYSICAL REVIEW C
	2012-02-28
卷号	85
ISSN号	0556-2813
DOI	10.1103/PhysRevC.85.024324
文献子类	Article
英文摘要	The anomalously fast decay of a 19/2(+) three-quasiparticle isomer in Tm-171 was interpreted recently as an example of K mixing induced by a very small mixing matrix element but a (random) close proximity to a collective state. To understand the source of the residual interaction we have generalized the projected shell model by introducing two-body octupole and hexadecupole forces into the Hamiltonian and expanding the model space with inclusion of specific three-quasiparticle configurations. It is found that the K mixing is built up from small interactions transferred through numerous highly excited configurations that contain high-j orbitals. While the chance near-degeneracy enhances the transition strength, the octupole correlation and Coriolis coupling produce the mixing matrix element.
资助项目	Science and Technology Facilities Council[ST/J000051/1]
WOS关键词	PROJECTED SHELL-MODEL ; EVEN DEFORMED-NUCLEI ; STATES ; TRANSITIONS
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000300834100003
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49069]
专题	中国科学院近代物理研究所
通讯作者	Chen, Fang-Qi
作者单位	1.Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Huzhou Teachers Coll, Sch Sci, Huzhou 313000, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 5.Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England 6.Australian Natl Univ, RSPhysSE, Dept Nucl Phys, Canberra, ACT 0200, Australia
推荐引用方式 GB/T 7714	Chen, Fang-Qi,Liu, Yan-Xin,Sun, Yang,et al. Residual interactions and the K-mixing-induced fast decay of the three-quasiparticle isomer in Tm-171[J]. PHYSICAL REVIEW C,2012,85.
APA	Chen, Fang-Qi,Liu, Yan-Xin,Sun, Yang,Walker, P. M.,&Dracoulis, G. D..(2012).Residual interactions and the K-mixing-induced fast decay of the three-quasiparticle isomer in Tm-171.PHYSICAL REVIEW C,85.
MLA	Chen, Fang-Qi,et al."Residual interactions and the K-mixing-induced fast decay of the three-quasiparticle isomer in Tm-171".PHYSICAL REVIEW C 85(2012).