Study of ground state properties of carbon isotopes with deformed relativistic Hartree-Bogoliubov theory in continuum

被引：42

作者：

Sun, Xiang-Xiang ^{[1
,2
]}

Zhao, Jie ^{[3
]}

Zhou, Shan-Gui ^{[1
,2
,4
,5
]}

机构：

[1] Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

[3] Ctr Quantum Comp, Peng Cheng Lab, Shenzhen 518055, Peoples R China

[4] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China

[5] Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Peoples R China

来源：

NUCLEAR PHYSICS A | 2020年 / 1003卷

基金：

中国国家自然科学基金;

关键词：

Carbon isotopes; Deformed halo; (nu; 2s(1/2); nu; 1d(5/2)); inversion; Shape decoupling; Deformed RHB theory in continuum; MEAN-FIELD DESCRIPTION; NEUTRON HALO; COULOMB DISSOCIATION; 2-NEUTRON HALO; EXCITED-STATES; NUCLEI; C-19; DENSITY; RANGE; BETA;

D O I：

10.1016/j.nuclphysa.2020.122011

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Ground state properties of carbon isotopes, including root-mean-square radii, neutron separation ener-gies, single particle spectra, and shapes are systematically studied with the deformed relativistic HartreeBogoliubov theory in continuum. The calculations with the effective interaction PK1 reproduce the available data reasonably well. The shell evolution in this isotopic chain is investigated by examining the single particle spectra. The inversion of neutron orbitals nu 2s(1/2) and nu 1d(5/2) compared with the order of neutron orbitals in stable nuclei is revealed in 15-20,22C when these nuclei are constrained to spherical shape. Neutron halos in C-15,C-19,C-22 are studied in detail and their halo structures are mainly caused by the inversion of (nu 2s(1/2), nu 1d(5/2)) and deformation effects. In particular, C-15 and C-22 are deformed halo nuclei with shape decoupling effects in ground states. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：29

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