Two-Neutron Halo is Unveiled in F-29

doi:10.1103/PhysRevLett.124.222504

	Two-Neutron Halo is Unveiled in F-29
	Bagchi, S.1,2,3; Kanungo, R.1,4; Tanaka, Y. K.1,2,3; Geissel, H.2,3; Doornenbal, P.5; Horiuchi, W.6; Hagen, G.7,8; Suzuki, T.9; Tsunoda, N.10; Ahn, D. S.5
刊名	PHYSICAL REVIEW LETTERS
	2020-06-05
卷号	124 期号:22 页码:7
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.124.222504
通讯作者	Kanungo, R.(ritu@triumf.ca)
英文摘要	We report the measurement of reaction cross sections (sigma(ex)(R)) of F-27,F-29 with a carbon target at RIKEN. The unexpectedly large sigma(ex)(R) and derived matter radius identify F-29 as the heaviest two-neutron Borromean halo to date. The halo is attributed to neutrons occupying the 2p(3/2) orbital, thereby vanishing the shell closure associated with the neutron number N = 20. The results are explained by state-of-the-art shell model calculations. Coupled-cluster computations based on effective field theories of the strong nuclear force describe the matter radius of F-27 but are challenged for F-29.
资助项目	NSERC Canada ; JSPS KAKENHI[16H02179] ; JSPS KAKENHI[18H05404] ; UK STFC[ST/P003885/1] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics[DE-AC02-05CH11231] ; Office of Nuclear Physics, U.S. Department of Energy[DE-SC0018223] ; Office of Nuclear Physics, U.S. Department of Energy[DE-FG0296ER40963] ; Office of Science of the Department of Energy[DE-AC05-00OR22725] ; Oak Ridge National Laboratory (ORNL)[ERKBP72] ; JSPS invitational fellowship program
WOS关键词	INTERACTION CROSS-SECTIONS ; COUPLED-CLUSTER THEORY ; GROUND-STATE ; NUCLEAR ; RADII
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000538337400004
资助机构	NSERC Canada ; JSPS KAKENHI ; UK STFC ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics ; Office of Nuclear Physics, U.S. Department of Energy ; Office of Science of the Department of Energy ; Oak Ridge National Laboratory (ORNL) ; JSPS invitational fellowship program
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/140797]
专题	中国科学院近代物理研究所
通讯作者	Kanungo, R.
作者单位	1.St Marys Univ, Astron & Phys Dept, Halifax, NS B3H 3C3, Canada 2.GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany 3.Justus Liebig Univ, D-35392 Giessen, Germany 4.TRIUMF, Vancouver, BC V6T 2A3, Canada 5.RIKEN Nishina Ctr, Wako, Saitama 3510198, Japan 6.Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0600810, Japan 7.Oak Ridge Natl Lab, Phys Div, Oak Ridge, TN 37831 USA 8.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA 9.Nihon Univ, Dept Phys, Setagaya Ku, Tokyo 1568550, Japan 10.Univ Tokyo, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan
推荐引用方式 GB/T 7714	Bagchi, S.,Kanungo, R.,Tanaka, Y. K.,et al. Two-Neutron Halo is Unveiled in F-29[J]. PHYSICAL REVIEW LETTERS,2020,124(22):7.
APA	Bagchi, S..,Kanungo, R..,Tanaka, Y. K..,Geissel, H..,Doornenbal, P..,...&Yoshida, K..(2020).Two-Neutron Halo is Unveiled in F-29.PHYSICAL REVIEW LETTERS,124(22),7.
MLA	Bagchi, S.,et al."Two-Neutron Halo is Unveiled in F-29".PHYSICAL REVIEW LETTERS 124.22(2020):7.