Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 7: Nuclear Structure and Dynamics II

HK 7.3: Vortrag

Montag, 16. März 2009, 14:45–15:00, H-ZO 50

Transformation of nuclear potentials from partial wave representation into operator representation — •Dennis Weber, Hans Feldmeier, and Thomas Neff — GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany

Realistic interactions reproduce the nucleon-nucleon scattering data and the properties of the deuteron. There exist several transformation methods to include short-range correlations for applications in many-body methods. Two of these transformation methods are the "Unitary Correlation Operator Method" (UCOM) and the "Similarity Renormalization Group Method" (SRG).

The potentials often are not given in the operator representation but by matrix elements in momentum space. However some many-body approaches like "Fermionic Molecular Dynamics" (FMD) can only use the operator representation. In this case the operator representation has to be determined from the matrix elements of the potential.

We show a method to extract the operator representation of a potential from the partial wave basis matrix elements for the UCOM- and the SRG-transformed Argonne V18 potential and to study the "nonlocality" of the interaction.