Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-01-21
Phys.Rev.C79:024309,2009
Physics
Nuclear Physics
Nuclear Theory
19 pages, 13 figures
Scientific paper
10.1103/PhysRevC.79.024309
Spatial correlation characteristics of the anomalous density matrix $\kappa$ in a slab of nuclear matter with the Paris and Argonne v18 forces are calculated. A detailed comparison with predictions of the effective Gogny force is made. It is found that the two realistic forces lead to very close results which are qualitatively similar to those for the Gogny force. At the same time, the magnitude of $\kappa$ for realistic forces is essentially smaller than the one for the Gogny force. The correlation characteristics are practically independent of the magnitude of $\kappa$ and turn out to be quite close for the three kinds of the force. In particular, all of them predict a small value of the local correlation length at the surface of the slab and a big one, inside. These results are in agreement with those obtained recently by Pillet at al. for finite nuclei with the Gogny force.
Baldo Marcello
Lombardo Umberto
Pankratov S. S.
Saperstein Eduard
Zverev M. V.
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