https://doi.org/10.1140/epja/i2004-10053-5
Systematic study of structure of carbon isotopes with the antisymmetrized molecular dynamics plus generator coordinate method
1
Department of Physics, University of Tokyo, 113-0033, Tokyo, Japan
2
351-0198, Saitama, Japan
3
Nuclear Physics Institute, Czech Academy of Sciences, Prague-Rez, Czech Republic
* e-mail: thiamova@tkyntm.phys.s.u-tokyo.ac.jp
Received:
2
March
2004
Accepted:
22
July
2004
Published online:
11
November
2004
The structure of low-lying states of the carbon isotopes is investigated using the improved version of the Antisymmetrized Molecular Dynamics (AMD) Multi-Slater Determinant model. The theoretical method is found to be very useful to study ground-state properties of various nuclei covering light unstable nuclei. The calculations succeed to reproduce reasonably well many experimental data for the carbon isotopes 12C- 22C such as binding energies, the energies of the 2+ 1 states in the even-even isotopes, radii and electromagnetic transition strengths. We investigate the structure change with the increasing neutron number and observe the existence of various exotic phenomena, like the development of a neutron skin and large deformations which appear in unstable nuclei. Our calculations clearly support the existence of the N = 8 and N = 16 neutron magic numbers. The role of the spin-orbit interaction in the description of the studied isotopes and in the development of cluster structures is discussed. A special approach, important for weakly bound systems, is adopted for 15C. It enables us to better describe the tail of the wave function.
PACS: 21.10.Dr Binding energies and masses – / 21.10.Gv Mass and neutron distributions – / 21.10.Ky Electromagnetic moments – / 21.60.Gx Cluster models –
© Società Italiana di Fisica and Springer-Verlag, 2004
