Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-05-10
Phys. Rev. C 82, 024319 (2010)
Physics
Nuclear Physics
Nuclear Theory
10 pages, 10 figures
Scientific paper
10.1103/PhysRevC.82.024319
We investigate the influence of phenomenological three-nucleon interactions on the systematics of ground-state energies and charge radii throughout the whole nuclear mass range from 4-He to 208-Pb. The three-nucleon interactions supplement unitarily transformed two-body interactions constructed within the Unitary Correlation Operator Method or the Similarity Renormalization Group approach. To be able to address heavy nuclei as well, we treat the many-body problem in Hartree-Fock plus many-body perturbation theory, which is sufficient to assess the systematics of energies and radii, and limit ourselves to regularized three-body contact interactions. We show that even with such a simplistic three-nucleon interaction a simultaneous reproduction of the experimental ground-state energies and charge radii can be achieved, which is not possible with unitarily transformed two-body interactions alone.
Günther Albert
Hergert H.
Reinhardt Sascha
Roth Raphael
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