Toward a deformed relativistic Hartree Bogoliubov model for exotic nuclei

Deformed relativistic Hartree (DRH) and relativistic Hartree-Bogoliubov (DRHB) models are developed aiming at a proper description of exotic nuclei, particularly the deformed ones with large spatial extension. In order to give an adequate description of both the contribution of the continuum and the large spatial distribution in some exotic nuclei, the DRH and DRHB equations are solved in a Woods-Saxon basis in which the radial wave functions have proper asymptotic behaviors at large distance from the nuclear center which is crucial for the formation of halo. The formalism and the numerical details of the DRH model and some preliminary results of the DRHB model are presented