Particle-particle random phase approximation applied to Beryllium isotopes

Abstract

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.

to appear in Phys. Rev. C

References in corpus (5)

• Unbound exotic nuclei studied by projectile fragmentation
• Three-body structure of low-lying 12Be states
• Experimental studies of unbound neutron-rich nuclei
• Two-body correlations in N=8 and 10 nuclei and effective neutron-neutron interactions in Tamm-Dancoff and two-particle RPA models
• Isomeric 0- halo-states in 12Be and 11Li

Cited by in corpus (6)

• Equivalence of Particle-Particle Random Phase Approximation Correlation Energy and Ladder-Coupled-Cluster-Double
• A New Measurement of the Intruder Configuration in 12Be
• Structure of ${}^{13}$Be probed via secondary beam reactions
• Structure and reactions of 11Be: many-body basis for single-neutron halo
• Observation of the near-threshold intruder $0^{-}$ resonance in ${}^{12}$Be
• Three-body properties of low-lying ${}^{12}$Be resonances