Phys.Rev. C 106, 034312 (2022)

K.Fossez, J.Rotureau

Density matrix renormalization group description of the island of inversion isotopes ^28-33F

NUCLEAR STRUCTURE ²⁵O, ^{25,26,27,28,31}F; analyzed experimental level energies, J, π with reference to ground-state and width of ²⁴O. ^{25,26,27,28,29,30,31,32,33}F; calculated energies of the ground states with reference to ²⁴O core, occupation numbers of the neutron and proton partial waves for the ground states, experimental and predicted energy differences between the lowest 5/2+ and 1/2+ states in odd-A fluorine nuclei. ^{26,27,28,29,30,31,32,33}F; calculated levels, J, π with 4p-4h truncation; discussed halo structure in the ground state of ²⁹F, and island of inversion (IOI). Large-scale shell model calculations using density matrix renormalization group (DMRG) method, and an effective two-body interaction with adjustable parameters in the central and tensor channels. Comparison with available experimental data.

doi: 10.1103/PhysRevC.106.034312