Description of nuclei around N=20 starting from the Argonne V18   interaction
  Using the Argonne V18 interaction, renormalized with the Lee-Suzuki method, we study nuclei around the $N=20$ island of inversion. We include 5 major oscillator shells, in a no-core approach, using the Hybrid Multi-Determinant method reaching up to few hundreds Slater determinants. Although qualitatively in agreement with the experimental levels, the calculated BE2 do not show the same amount of collectivity seen experimentally. 
Giovanni Puddu
nucl-th