On the Shell Structure of Nuclear Bubbles

Details On the Shell Structure of Nuclear Bubbles On the Shell Structure of Nuclear Bubbles

1997-06-06

arxiv.org/abs/nucl-th/9706020v1

Nucl.Phys. A627 (1997) 175-221

Physics

Nuclear Physics

Nuclear Theory

37 pages, latex, 27 figures in the eps format included

Scientific paper

10.1016/S0375-9474(97)00481-8

We investigate the shell structure of spherical nuclear bubbles in simple phenomenological shell model potentials. The shell correction energies for doubly magic bubbles may be as large as -40 MeV and probably imply a very long lifetime against spontaneous fission. Beta-stability occurs for ratios of the neutron number N to the proton number Z which differ markable from the beta-stability valley of ordinary compact nuclei. The alpha-decay probability is shown to be very small for proton rich bubbles with a moderately large outer radius. Metastable islands of nuclear bubbles are shown to exist for nucleon in the range A=450 - 3000.

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