Swelling of Doubly Magic Ca-48 Core in Ca Isotopes beyond N=28

doi:10.1103/PhysRevLett.124.102501

	Swelling of Doubly Magic Ca-48 Core in Ca Isotopes beyond N=28
	Tanaka, M.1,2; Takechi, M.3; Homma, M.3; Fukuda, M.1; Nishimura, D.4; Suzuki, T.5; Tanaka, Y.1; Moriguchi, T.6; Ahn, D. S.7; Aimaganbetov, A.8,9
刊名	PHYSICAL REVIEW LETTERS
	2020-03-13
卷号	124 期号:10 页码:6
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.124.102501
通讯作者	Tanaka, M.(masaomi@phys.kyushu-u.ac.jp)
英文摘要	Interaction cross sections for Ca42-51 on a carbon target at 280 MeV/nucleon have been measured for the first time. The neutron number dependence of derived root-mean-square matter radii shows a significant increase beyond the neutron magic number N = 28. Furthermore, this enhancement of matter radii is much larger than that of the previously measured charge radii, indicating a novel growth in neutron skin thickness. A simple examination based on the Fermi-type distribution, and mean field calculations point out that this anomalous enhancement of the nuclear size beyond N = 28 results from an enlargement of the core by a sudden increase in the surface diffuseness of the neutron density distribution, which implies the swelling of the bare Ca-48 core in Ca isotopes beyond N = 28.
资助项目	Hirose International Scholarship Foundation ; [JP24244024] ; [JP16H03905] ; [JP15J01446]
WOS关键词	INTERACTION CROSS-SECTIONS ; INELASTIC-SCATTERING ; ELASTIC-SCATTERING ; CHARGE RADII ; GEV PROTONS ; NEUTRON
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000519718100011
资助机构	Hirose International Scholarship Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/140951]
专题	中国科学院近代物理研究所
通讯作者	Tanaka, M.
作者单位	1.Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan 2.Kyushu Univ, Res Ctr Superheavy Elements, Fukuoka 8190395, Japan 3.Niigata Univ, Dept Phys, Ikarashi, Niigata 9512181, Japan 4.Tokyo City Univ, Dept Phys, Setagaya Ku, Tokyo 1588557, Japan 5.Saitama Univ, Dept Phys, Saitama 3388570, Japan 6.Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan 7.RIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan 8.Inst Nucl Phys, Alma Ata 050032, Kazakhstan 9.LN Gumilyov Eurasian Natl Univ, Astana 010008, Kazakhstan 10.St Marys Univ, Astron & Phys Dept, Halifax, NS B3H 3C3, Canada
推荐引用方式 GB/T 7714	Tanaka, M.,Takechi, M.,Homma, M.,et al. Swelling of Doubly Magic Ca-48 Core in Ca Isotopes beyond N=28[J]. PHYSICAL REVIEW LETTERS,2020,124(10):6.
APA	Tanaka, M..,Takechi, M..,Homma, M..,Fukuda, M..,Nishimura, D..,...&Zholdybayev, T. K..(2020).Swelling of Doubly Magic Ca-48 Core in Ca Isotopes beyond N=28.PHYSICAL REVIEW LETTERS,124(10),6.
MLA	Tanaka, M.,et al."Swelling of Doubly Magic Ca-48 Core in Ca Isotopes beyond N=28".PHYSICAL REVIEW LETTERS 124.10(2020):6.