Towards a new effective interaction of the Gogny type

A new effective two-body interaction of the Gogny type (DIP) is presented. While the merits of the currently used parametrizations (D1 and D1S) remain practically untouched, significant improvements are achieved with respect to three of their main deficiencies: (i) the depth of the optical potential agrees with experiments to energies beyond 200 MeV, (ii) sum rules of Land au parameters are better fulfilled and cleaned from instabilities due to th e isovector breathing mode at physical values of the density and (iii) a re alistic behaviour for the neutron matter equation of state at high densitie s is achieved.