The matter and the charge distributions of the ${}^6\mathrm{He}$ and ${}^{5,6,7,9}\mathrm{Li}$ isotopes are investigated within the dynamic-correlation model (DCM) which describes the ground states of light nuclei in terms of microscopic correlated clusters: the valence particles and the intrinsic vacuum states. The amplitudes of these mixed-mode wave functions are calculated in the framework of nonperturbative solutions of the equation of motion method (EOMM). The matter and charge mean square radii are in good agreement with experimental results. The calculated matter distribution of the ${}^6\mathrm{He}$ nucleus is characterized by a halo structure less pronounced than that calculated by the three cluster models. The charge distribution of ${}^6\mathrm{Li}$ reproduces well the electron scattering data. Good agreement with experimental data has been also achieved for the proton scattering cross sections of $p{-}^6\mathrm{He}$ at an energy of 0.7 GeV/nucleon.

• Received 13 June 2000

DOI:https://doi.org/10.1103/PhysRevC.62.067305