We investigate the shell structure of the ${}^{22}\mathrm{Al}$ (hyper)nucleus within the deformed Skyrme-Hartree-Fock approach, precisely reproducing the core binding energies by modifications to the nuclear force parameters. We analyze proton single-particle levels and density distributions and in particular the effect of adding a $\mathrm{\Lambda }$ hyperon in the deformed calculation. The latter might induce important core configuration changes, enhancing a possible proton halo feature.

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• Hypernuclei & mesic nuclei
• Nuclear forces
• Nucleon-nucleon interactions
• Particle interactions
• 20 ≤ A ≤ 38
• Nuclear many-body theory