Pairing in nuclear systems with effective Gogny and V_low-k interactions
arXiv:nucl-th/0308068 · doi:10.1016/j.physletb.2003.09.090
Abstract
The pairing properties of nuclear systems are a sensitive probe of the effective nucleon-nucleon interactions. We compare the 1S0 pairing gaps in nuclear and neutron matter derived from the phenomenological Gogny interaction and a renormalization group motivated low-momentum V_low-k interaction extracted from realistic interactions. We find that the pairing gaps predicted by these interactions are in an excellent agreement in a wide range of sub-nuclear densities. The close agreement between the predictions of the effective forces remains intact in the case where the single particle spectra in neutron and nuclear matter are renormalized within the Hartree-Fock theory.
11 pages, 2 figures, uses elsart.sty; v2: references added, Brueckner calculations for the V_low-k spectrum; v3: author name correction
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- The structure of nuclear systems derived from low momentum nucleon-nucleon potentials
- Realistic shell-model calculations for proton particle-neutron hole nuclei around 132Sn
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- Correlations and effective interactions in nuclear matter
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- Shell-model studies on exotic nuclei around 132Sn
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- Response functions of cold neutron matter: density fluctuations
- Separable form of low-momentum realistic NN interaction
- The BCS pairing gap in the on-shell limit of the Similarity Renormalization Group
- Nuclear Pairing from Chiral Pion-Nucleon Dynamics: Applications to Finite Nuclei