https://doi.org/10.1140/epja/i2008-10626-2
Regular Article — Theoretical Physics
Properties of proton-rich nuclei in a three-body model
1
Department of Physics, Nanjing University, Nanjing, 210008, China
2
Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou, 730000, China
3
Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing, 210008, China
* e-mail: chuyanyun@gmail.com
Received:
20
June
2008
Published online:
27
August
2008
Using a three-body model and realistic two-body potentials, we investigate the properties of the nuclei 18Ne and 28S near the proton dripline. We figure out the two-proton separation energies, occupation of the valence protons, root-mean-square radii of matter and the valence protons. Besides, the spatial correlation densities are displayed to reflect the correlation between the two valence protons. The first excited 0+ state of 18Ne is most likely to be a halo state according to our calculation. Turning off the Coulomb interactions among the three-body systems, we get the two-neutron separation energies and configuration of the valence neutrons of their corresponding mirror nuclei. The results indicate that the three-body model is proper to describe some proton-rich nuclei and can be used to deduce reliable information.
PACS: 21.10.Gv Nucleon distributions and halo features – / 21.60.-n Nuclear structure models and methods – / 27.20.+n 6 ≤ A ≤ 19 − 27.30.+t 20 ≤ A ≤ 38 –
© SIF, Springer-Verlag Berlin Heidelberg, 2008
