Determination of the structure of $^{31}$Ne by full-microscopic framework

Details Determination of the structure of $^{31}$Ne by full-microscopic framework Determination of the structure of $^{31}$Ne by full-microscopic framework

2011-10-18

arxiv.org/abs/1110.3867v1

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures, 2 tables

Scientific paper

We perform the first quantitative analysis of the reaction cross sections of $^{28-32}$Ne by $^{12}$C at 240 MeV/nucleon, using the double-folding model (DFM) with the Melbourne $g$-matrix and the deformed projectile density calculated by the antisymmetrized molecular dynamics (AMD). To describe the tail of the last neutron of $^{31}$Ne, we adopt the resonating group method (RGM) combined with AMD. The theoretical prediction excellently reproduce the measured cross sections of $^{28-32}$Ne with no adjustable parameters. The ground state properties of $^{31}$Ne, i.e., strong deformation and a halo structure with spin-parity $3/2_{}^-$, are clarified.

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