Nuclear structure based on correlated realistic nucleon–nucleon potentials

• DOI: 10.1016/j.nuclphysa.2004.08.024
• Publication Date: 2004-09-28T14:37:14Z
• Authors: R. Roth; T. Neff; H. Hergert; H. Feldmeier
• Keywords: Nuclear Theory (nucl-th); Nuclear Theory; 0103 physical sciences; FOS: Physical sciences; 7. Clean energy; 01 natural sciences

32 pages, 15 figures<br/>We present a novel scheme for nuclear structure calculations based on realistic nucleon-nucleon potentials. The essential ingredient is the explicit treatment of the dominant interaction-induced correlations by means of the Unitary Correlation Operator Method (UCOM). Short-range central and tensor correlations are imprinted into simple, uncorrelated many-body states through a state-independent unitary transformation. Applying the unitary transformation to the realistic Hamiltonian leads to a correlated, low-momentum interaction, well suited for all kinds of many-body models, e.g., Hartree-Fock or shell-model. We employ the correlated interaction, supplemented by a phenomenological correction to account for genuine three-body forces, in the framework of variational calculations with antisymmetrised Gaussian trial states (Fermionic Molecular Dynamics). Ground state properties of nuclei up to mass numbers A<br/>