Particle-particle random phase approximation applied to Beryllium isotopes

Details Particle-particle random phase approximation applied to Beryllium isotopes Particle-particle random phase approximation applied to Beryllium isotopes

2010-07-16

arxiv.org/abs/1007.2719v1

Physics

Nuclear Physics

Nuclear Theory

to appear in Phys. Rev. C

Scientific paper

This work is dedicated to the study of even-even 8-14 Be isotopes using the particle-particle Random Phase Approximation that accounts for two-body correlations in the core nucleus. A better description of energies and two-particle amplitudes is obtained in comparison with models assuming a neutron closed-shell (or subshell) core. A Wood-Saxon potential corrected by a phenomenological particle-vibration coupling term has been used for the neutron-core interaction and the D1S Gogny force for the neutron-neutron interaction. Calculated ground state properties as well as excited state ones are discussed and compared to experimental data. In particular, results suggest the same 2s_1/2-1p_1/2 shell inversion in 13Be as in 11Be.

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