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Particle-particle random-phase approximation applied to beryllium isotopes

Abstract : This paper is dedicated to the study of even-even 8-14Be isotopes, which uses 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 that assume a neutron closed-shell (or subshell) core. A Woods-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 are compared to experimental data. In particular, results suggest the same 2s1/2-1p1/2 shell inversion in 13Be as in 11Be.
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http://hal.in2p3.fr/in2p3-00522349
Contributor : Sophie Heurteau <>
Submitted on : Thursday, September 30, 2010 - 3:39:37 PM
Last modification on : Wednesday, October 14, 2020 - 3:59:54 AM

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G. Blanchon, N. Vinh Mau, A. Bonaccorso, M. Dupuis, N. Pillet. Particle-particle random-phase approximation applied to beryllium isotopes. Physical Review C, American Physical Society, 2010, 82, pp.034313. ⟨10.1103/PhysRevC.82.034313⟩. ⟨in2p3-00522349⟩

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