Coulomb effects on the formation of proton halo nuclei
Liang Yu-Jie(梁玉洁)a), Li Yan-Song(李岩松)b), Zhu Min(朱民)c), Liu Zu-Hua(刘祖华)a)d), and Zhou Hong-Yu(周宏余)a)†
a The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China; b Department of Physics, Tsinghua University, Beijing 100084, China; c College of Science, Minzu University of China, Beijing 100081, China; d China Institute of Atomic Energy, Beijing 102413, China
Abstract This paper makes some qualitative and quantitative analyses about halo formation rules of some mirror nuclei with the relativistic mean-field (RMF) theory and the Woods--Saxon mean-field model. By analysing two opposite effects of Coulomb interaction on the proton halo formation, it finds that the energy level shift has a larger contribution than that of the Coulomb barrier when the mass number A is small, the hindrance of the Coulomb barrier becomes more obvious with the increase of the mass number A, and the overall effect of the Coulomb interaction almost disappears when A ≈ 39 as its two effects counteract with each other.
Received: 21 January 2009
Revised: 22 April 2009
Accepted manuscript online:
(Nuclear Density Functional Theory and extensions (includes Hartree-Fock and random-phase approximations))
Fund: Project supported by the National
Natural Science Foundation of China (Grant No 10435020), and the
Science Foundation of the Beijing Education Committee (Grant No
XK100270454).
Cite this article:
Liang Yu-Jie(梁玉洁), Li Yan-Song(李岩松), Zhu Min(朱民), Liu Zu-Hua(刘祖华), and Zhou Hong-Yu(周宏余) Coulomb effects on the formation of proton halo nuclei 2009 Chin. Phys. B 18 5267
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