Hyperon Halos in Λ Hypernuclei in the Relativistic Continuum Hartree-Bogoliubov Theory
LÜ Hong-Feng1, MENG Jie1,2,3
1School of Physics, Peking University, Beijing 100871
2Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
Hyperon Halos in Λ Hypernuclei in the Relativistic Continuum Hartree-Bogoliubov Theory
LÜ Hong-Feng1;MENG Jie1,2,3
1School of Physics, Peking University, Beijing 100871
2Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
Abstract： We investigate the existences of a single-Λ hyperon halo in 153ΛC and a two-Λ hyperon halo in 164ΛC. Ground-state properties of hyperon carbon isotopes, such as density distributions, single particle levels in the canonical basis, the binding energy, Λ separation energy and radii, are calculated and discussed by using the relativistic continuum Hartree-Bogoliubov theory. The hyperon halo phenomenon in 153ΛC and 164ΛC is supported by the discussion on the weakly bound state 1p3/2, extended density distribution and small separation energy of the Λ hyperon.
2002, Vol. 19 
