Large mirror asymmetry in Gamow-Teller beta-decay in the A=26 isobaric multiplet

doi:10.1016/j.nuclphysa.2019.03.002

	Large mirror asymmetry in Gamow-Teller beta-decay in the A=26 isobaric multiplet
	Mizusaki, T.3; Tazaki, S.6; Ghorui, S. K.1; Kaneko, K.4; Sun, Y.1,2,5; Jenkins, D. G.7
刊名	NUCLEAR PHYSICS A
	2019-06-01
卷号	986 页码:107-115
关键词	Mirror asymmetry Gamow-Teller beta-decay Isospin-nonconserving forces Proton halos Large-scale shell model
ISSN号	0375-9474
DOI	10.1016/j.nuclphysa.2019.03.002
通讯作者	Sun, Y.(sunyang@sjtu.edu.cn)
英文摘要	We investigate a striking example of mirror asymmetry in Gamow-Teller (GT) beta-decay using the nuclear shell-model including isospin-nonconserving (INC) forces in the sd-shell region. We show that the large mirror asymmetry between P-26 and Na-26 GT beta-decay can be accurately reproduced by introducing T = 1, J not equal 0 INC forces related to the s(1/2) orbit, while the usual J = 0 INC force, commonly adopted to describe isospin-symmetry breaking, does not work. We further show that the calculated distribution of summed GT strength for the P-26 beta-decay is in good agreement with the experimental data. Our results support the conclusion that P-26 is a nucleus with proton-halo structure. (C) 2019 Published by Elsevier B.V.
资助项目	National Key Program for S&T Research and Development[2016YFA0400501] ; National Natural Science Foundation of China[11575112]
WOS关键词	ENERGY-LEVELS ; SYMMETRY BREAKING ; LIGHT-NUCLEI ; SPECTROSCOPY
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000469162400010
资助机构	National Key Program for S&T Research and Development ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/133474]
专题	中国科学院近代物理研究所
通讯作者	Sun, Y.
作者单位	1.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China 2.China Inst Atom Energy, POB 275 10, Beijing 102413, Peoples R China 3.Senshu Univ, Inst Nat Sci, Tokyo 1018425, Japan 4.Kyushu Sangyo Univ, Dept Phys, Fukuoka, Fukuoka 8138503, Japan 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 6.Fukuoka Univ, Dept Appl Phys, Fukuoka, Fukuoka 8140180, Japan 7.Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England
推荐引用方式 GB/T 7714	Mizusaki, T.,Tazaki, S.,Ghorui, S. K.,et al. Large mirror asymmetry in Gamow-Teller beta-decay in the A=26 isobaric multiplet[J]. NUCLEAR PHYSICS A,2019,986:107-115.
APA	Mizusaki, T.,Tazaki, S.,Ghorui, S. K.,Kaneko, K.,Sun, Y.,&Jenkins, D. G..(2019).Large mirror asymmetry in Gamow-Teller beta-decay in the A=26 isobaric multiplet.NUCLEAR PHYSICS A,986,107-115.
MLA	Mizusaki, T.,et al."Large mirror asymmetry in Gamow-Teller beta-decay in the A=26 isobaric multiplet".NUCLEAR PHYSICS A 986(2019):107-115.