Semi-microscopic folding model for the description of two-body halo nuclei

Abstract

One-neutron halo nuclei, composed by a weakly-bound particle coupled to a core nucleus, are studied within a particle-plus-core model. A semi-microscopic method to generate the two-body Hamiltonian of such a system, including core excitation, is proposed. The method consists in generating the spin-independent part of the valence-core interaction using a single-folding procedure, convoluting a realistic nucleon-nucleon (NN) interaction with the core transition densities. The latter are calculated with the Antisymetrized Molecular Dynamics (AMD) method. The prescription is applied to the well known halo nucleus, ${}^{11}$Be, as a test case. The results show an important predictive power that opens a door to the understanding of other lesser known halo nuclei. In order to show the potential usefulness of the method, it is applied to analyze the structure of ${}^{19}$C.

11 pages, 7 figures, 3 tables (version to appear in Phys. Rev. C)

References in corpus (7)

• Roles of the tensor and pairing correlations on the halo formation in 11Li
• Nilsson diagrams for light neutron-rich nuclei with weakly-bound neutrons
• Unbound excited states in 19,17C
• Interplay between valence and core excitation mechanisms in the breakup of halo nuclei
• Particle motion in a deformed potential using a transformed oscillator basis
• All orders breakup of heavy exotic nuclei in a semiclassical model
• Constraints on the spectra of 17,19C

Cited by in corpus (10)

• Continuum-Discretized Coupled-Channels calculations with core excitation
• Structure and reactions of 11Be: many-body basis for single-neutron halo
• Structure of the exotic ${}^9$He nucleus from the no-core shell model with continuum
• Evidence of strong dynamic core excitation in ${}^{19}$C resonant break-up
• Low-lying single-particle structure of 17C and the N = 14 sub-shell closure
• Extracting electric dipole breakup cross section of one-neutron halo nuclei from breakup observables
• Transfer reactions of exotic nuclei including core deformations: ${}^{11}$Be and ${}^{17}$C
• Current Status of Nuclear Physics Research
• Continuum discretized BCS approach for weakly bound nuclei
• Pauli Blocking effects in Nilsson states of weakly bound exotic nuclei