Detecting bubbles in exotic nuclei

Abstract

The occurrence of a bubble, due to an inversion of s${}_{1/2}$ state with the state usually located above, is investigated. Proton bubbles in neutron-rich Argon isotopes are optimal candidates. Pairing effects which can play against the bubble formation are evaluated. They cannot prevent bubble formation in very neutron-rich argon isotopes such as ${}^{68}$Ar. This pleads for a measurement of the charge density of neutron-rich argon isotopes in the forthcoming years, with the advent of electron scattering experiments in next generation exotic beam facilities such as FAIR or RIBF.

6 pages, 5 figures, to be published in Nucl. Phys. A

References in corpus (6)

• Shell structure of superheavy nuclei in self-consistent mean-field models
• Relativistic Hartree-Bogoliubov description of the deformed N = 28 region
• Continuum quasiparticle random phase approximation and the time dependent Hartree-Fock-Bogoliubov approach
• Evolution of the proton sd states in neutron-rich Ca isotopes
• Shell correction energy for bubble nuclei
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