Popis: |
Applications of No-Core-Shell-Model (NCSM) densities in reaction calculations require that they are translationally invariant. In order to obtain translationally invariant local one-body densities for 4He, 6He, and 6Li we first reconstruct them in a space-fixed, coordinate-space frame from the output of NCSM calculations. We study their shapes incoordinate as well as momentum space as function of the size of the basis employed. The center-of-mass contribution is exactly removed in the momentum space representation. Form factors and RMS radii are computed from the translationally invariant local density. |