Pairing in nuclear systems with effective Gogny and V_low-k interactions

Details Pairing in nuclear systems with effective Gogny and V_low-k interactions Pairing in nuclear systems with effective Gogny and V_low-k interactions

2003-08-25

arxiv.org/abs/nucl-th/0308068v3

Phys.Lett. B576 (2003) 68-74

Physics

Nuclear Physics

Nuclear Theory

11 pages, 2 figures, uses elsart.sty; v2: references added, Brueckner calculations for the V_low-k spectrum; v3: author name c

Scientific paper

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.

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