SHELL-MODEL CALCULATION FOR LIGHT NEUTRON-RICH NUCLEI

A shell model calculation is carried out for nuclei with 9 less than o r equal to A less than or equal to 14 and 3 less than or equal to Z le ss than or equal to 5. In the calculation, He-8 is treated as core. Th e data for 24 experimental energy spectra are selected to determine th e parameters of the modified surface delta interaction (MSDI) and the single-particle energies. The energy root-mean square deviation is RMS = 0.72 MeV. Then the binding energies, the low-lying excited energy s pectra, and the electromagnetic properties are calculated and the resu lts are in good agreement with existing measurements in general. The m icromechanism of the halo structure and the parity conversion of the B e-11 are discussed in detail. This work is carried out with the shell model code OXBASH.