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HK: Fachverband Physik der Hadronen und Kerne
HK 27: Theorie
HK 27.4: Talk
Wednesday, March 14, 2007, 12:00–12:15, C
Brueckner-Hartree-Fock Calculations with Correlated Realistic NN-Interactions — •Patrick Hedfeld, Heiko Hergert, and Robert Roth — Institut fuer Kernphysik, TU Darmstadt, Schlossgartenstr.9, 64289 Germany
We present first Brueckner-Hartree-Fock calculations based on the correlated realistic interaction VUCOM derived within the Unitary Correlation Operator Method (UCOM). Starting from the realistic Argonne V18 potential, the UCOM transformation is used to account for the dominant short-range central and tensor correlations explicitly. The resulting correlated interaction can be used directly in Hartree-Fock calculations. These results show that residual long-range correlations, which are covered neither by the unitary transformation nor by the Hartree-Fock many-body states, have to be included. Motivated by the success of simple second-order perturbation theory on top of the Hartree-Fock solution, we investigate a systematic summation of ladder diagrams in the framework of a fully self-consistent Brueckner-Hartree-Fock scheme. We discuss the implementation of the scheme and present first results for ground states throughout the nuclear chart and compare them to our previous HF and MBPT calculations.Work supported by the DFG (SFB 634).