Nuclear Structure in the UCOM Framework: From Realistic Interactions to Collective Excitations

Abstract

The Unitary Correlation Operator Method (UCOM) provides a means for nuclear structure calculations starting from realistic NN potentials. The dominant short-range central and tensor correlations are described explicitly by a unitary transformation. The application of UCOM in the context of the no-core shell model provides insight into the interplay between dominant short-range and residual long-range correlations in the nuclear many-body problem. The use of the correlated interaction within Hartree-Fock, many-body perturbation theory, and Random Phase Approximation gives access to various nuclear structure observables throughout the nuclear chart.

9 pages, 3 figures, invited talk at the 2nd Int. Conf. on "Collective Motion in Nuclei under Extreme Conditions" (COMEX 2), Sankt Goar, Germany