Evidence for pseudospin-chiral quartet bands in the presence of octupole correlations

doi:10.1016/j.physletb.2020.135572

	Evidence for pseudospin-chiral quartet bands in the presence of octupole correlations
	Guo, S.3,4,5; Petrache, C. M.6; Mengoni, D.7,8; Qiang, Y. H.3,4; Wang, Y. P.9; Wang, Y. Y.9; Meng, J.9,10; Wang, Y. K.9; Zhang, S. Q.9; Zhao, P. W.9
刊名	PHYSICS LETTERS B
	2020-08-10
卷号	807 页码:6
关键词	Nuclear structure Pseudospin Chirality Octupole correlation Reflection-asymmetric particle rotor model Tilted axis cranking covariant density functional theory
ISSN号	0370-2693
DOI	10.1016/j.physletb.2020.135572
通讯作者	Guo, S.(gs@impcas.ac.cn) ; Petrache, C. M.(petrache@csnsm.in2p3.fr)
英文摘要	Three nearly degenerate pairs of doublet bands are identified in Ba-131. Two of them, with positive-parity, are interpreted as pseudospin-chiral quartet bands. This is the first time that a complete set of chiral doublet bands built on the pseudospin partners pi(d(5/2), g(7/2)) is observed. The chiral bands with opposite parity built on 3-quasiparticle configurations are directly connected by many E1 transitions, without involving an intermediary non-chiral configuration. The observed band structures in Ba-131 have been investigated by using the reflection-asymmetric particle rotor model. The energies and the electromagnetic transition ratios of the three pairs of doublet bands observed in Ba-131 are reproduced and they are interpreted as chiral doublet bands with three-quasiparticle configurations. It is the first time that multiple chiral bands are observed in the presence of enhanced octupole correlations and pseudospin symmetry. (C) 2020 The Author(s). Published by Elsevier B.V.
资助项目	National Key R&D Program of China[2018YFA0404402] ; National Key R&D Program of China[2018YFA0404400] ; National Key R&D Program of China[2017YFE0116700] ; Key Research Program of the Chinese Academy of Sciences[XDPB09-02] ; National Natural Science Foundation of China[11575255] ; National Natural Science Foundation of China[U1932137] ; National Natural Science Foundation of China[U1732139] ; National Natural Science Foundation of China[11621131001] ; National Natural Science Foundation of China[11875075] ; National Natural Science Foundation of China[11935003] ; National Natural Science Foundation of China[11975031] ; National Research, Development and Innovation Fund of Hungary[K128947] ; European Regional Development Fund[GINOP-2.3.3-15-2016-00034] ; National Research Development and Innovation Office - NKFIH[PD124717] ; Cai YuanPei 2018 Project[41458XH]
WOS关键词	SPIN ; ROTATION ; NUCLEI ; STATES
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000571765700050
资助机构	National Key R&D Program of China ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Research, Development and Innovation Fund of Hungary ; European Regional Development Fund ; National Research Development and Innovation Office - NKFIH ; Cai YuanPei 2018 Project
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/139620]
专题	中国科学院近代物理研究所
通讯作者	Guo, S.; Petrache, C. M.
作者单位	1.Univ Western Cape, Dept Phys & Astron, P-B X17, ZA-7535 Bellville, South Africa 2.KTH Dept Phys, S-10691 Stockholm, Sweden 3.Chinese Acad Sci, Key Lab High Precis Nucl Spect, Inst Modern Phys, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Ctr Nucl Matter Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 5.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 6.Univ Paris Saclay, Ctr Sci Nucl & Sci Matiere, CNRS, IN2P3, Bat 104-108, F-91405 Orsay, France 7.Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy 8.Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy 9.Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 10.Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan
推荐引用方式 GB/T 7714	Guo, S.,Petrache, C. M.,Mengoni, D.,et al. Evidence for pseudospin-chiral quartet bands in the presence of octupole correlations[J]. PHYSICS LETTERS B,2020,807:6.
APA	Guo, S..,Petrache, C. M..,Mengoni, D..,Qiang, Y. H..,Wang, Y. P..,...&Tucholski, A..(2020).Evidence for pseudospin-chiral quartet bands in the presence of octupole correlations.PHYSICS LETTERS B,807,6.
MLA	Guo, S.,et al."Evidence for pseudospin-chiral quartet bands in the presence of octupole correlations".PHYSICS LETTERS B 807(2020):6.