Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2001-12-13
Phys.Rev. C65 (2002) 044004
Physics
Nuclear Physics
Nuclear Theory
10 pages, 2 figures, 4 tables
Scientific paper
10.1103/PhysRevC.65.044004
We apply a particle-particle RPA model to study the properties of the two-neutron valence wave function in nuclei 14-C, 12-Be, 11-Li and 14-Be. The RPA model takes account of two body correlations in the core so that it gives a better description of energies and amplitudes than models which assume a neutron closed shell (or subshell) core. With a Gogny neutron-neutron effective interaction or with the equivalent density dependent delta force we are able to reproduce the two-neutron separation energies in these nuclei and in the corresponding cores, except for 9-Li. These calculations suggest the same 2s-1p1/2 shells inversion in 12-Be_13-Be than in 11-Be.
Mau Nicole Vinh
Pacheco J. C.
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