Investigating the neutron stability of neutron-rich O, Ar, Kr, and Rn isotopes

Properties of extremely neutron-rich even-even O, Ar, Kr, and Rn isotopes in the ground state are calculated by the Hartree-Fock method using Skyrme forces with allowance for axial deformation of the density distribution. It is shown that beyond the familiar two-neutron drip line there can be region...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2010-11, Vol.74 (11), p.1559-1569
Main Authors: Tarasov, V. N., Gridnev, K. A., Gridnev, D. K., Kuprikov, V. I., Tarasov, D. V., Greiner, W., Vinyes, X.
Format: Article
Language:English
Subjects:
Deformation effects
Deformation mechanisms
Density distribution
Ground state
Hadrons
Heavy Ions
Isotopes
Mathematical analysis
Nuclear Physics
Nuclei (nuclear physics)
Physics
Physics and Astronomy
Proceedings of the International Conference “Nucleus-2009. The Fundamental Problems and Applications of Nuclear Physics: From Space to Nanotechnologies” (LIX International Conference on Nuclear Spectroscopy and Atomic Nuclear Structure)
Radon isotopes
Stability
Stress concentration
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Summary:Properties of extremely neutron-rich even-even O, Ar, Kr, and Rn isotopes in the ground state are calculated by the Hartree-Fock method using Skyrme forces with allowance for axial deformation of the density distribution. It is shown that beyond the familiar two-neutron drip line there can be regions (islands) of nuclei stable with respect to the emission of one or two neutrons. The stability recovery mechanism is described in consideration of the deformation effect. Certain isotopes are compared to calculations performed by the Hartree-Fock-Bogolyubov method, and 40,42 O is compared to calculations performed within the relativistic Hartree-Bogolyubov theory.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873810110158