Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-08-02
Nucl.Phys. A608 (1996) 202-226
Physics
Nuclear Physics
Nuclear Theory
29 pages Latex, 13 ps figures, to appear in Nucl. Phys. A
Scientific paper
10.1016/0375-9474(96)00273-4
We have carried out a study of superheavy nuclei in the framework of the Relativistic Mean-Field theory. Relativistic Hartree-Bogoliubov (RHB) calculations have been performed for nuclei with large proton and neutron numbers. A finite-range pairing force of Gogny type has been used in the RHB calculations. The ground-state properties of very heavy nuclei with atomic numbers Z=100-114 and neutron numbers N=154-190 have been obtained. The results show that in addition to N=184 the neutron numbers N=160 and N=166 exhibit an extra stability as compared to their neighbors. For the case of protons the atomic number Z=106 is shown to demonstrate a closed-shell behavior in the region of well deformed nuclei about N=160. The proton number Z=114 also indicates a shell closure. Indications for a doubly magic character at Z=106 and N=160 are observed. Implications of shell closures on a possible synthesis of superheavy nuclei are discussed.
Gambhir Y. K.
Lalazissis Georgios A.
Ring Peter
Sharma Malti
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