Mirror energy difference and the structure of loosely bound proton-rich nuclei around A = 20

Abstract

The properties of loosely bound proton-rich nuclei around A = 20 are investigated within the framework of nuclear shell model. In these nuclei, the strength of the effective interactions involving the loosely bound proton s1=2 orbit are significantly reduced in comparison with those in their mirror nuclei. We evaluate the reduction of the effective interaction by calculating the monopole-baseduniversal interaction (VMU) in the Woods-Saxon basis. The shell-model Hamiltonian in the sd shell, such as USD, can thus be modified to reproduce the binding energies and energy levels of the weakly bound proton-rich nuclei around A = 20. The effect of the reduction of the effective interaction on the structure and decay properties of these nuclei is also discussed.

accepted by Physical Review C

References in corpus (5)

• Shell-model study of boron, carbon, nitrogen and oxygen isotopes based on monopole-based-universal interaction
• The beta-decay of 22Al
• In-beam gamma-ray spectroscopy at the proton dripline: 23Al
• Shell-model study of mirror nuclei with modern charge-dependent \textit{NN} potential
• Renormalized interactions with a realistic single particle basis

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