Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2005-06-08
Eur.Phys.J. A26 (2005) 25-32
Physics
Nuclear Physics
Nuclear Theory
16 pages, 10 figures
Scientific paper
Theoretical results for giant resonances in the three doubly magic exotic nuclei $^{78}$Ni, $^{100}$Sn and $^{132}$Sn are obtained from Hartree-Fock (HF) plus Random Phase Approximation (RPA) calculations using the D1S parametrization of the Gogny two-body effective interaction. Special attention is paid to full consistency between the HF field and the RPA particle-hole residual interaction. The results for the exotic nuclei, on average, appear similar to those of stable ones, especially for quadrupole and octupole states. More exotic systems have to be studied in order to confirm such a trend. The low energy of the monopole resonance in $^{78}$Ni suggests that the compression modulus in this neutron rich nucleus is lower than the one of stable ones.
Berger J.-F.
Bortignon Pier Francesco
Pe'ru S.
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