Superheavy Element Research at Dgfrs

This paper presents results of experiments aimed at producing long-lived superheavy elements located near the spherical shell closures with Z≥114 and N≥172 in the reactions of neutron-rich isotopes ²⁴⁴Pu, ²⁴⁸Cm and ²⁴⁹Cf with ⁴⁸Ca projectiles. The decay properties of the synthesized nuclei are consistent with the consecutive α-decays originating in the decays of parent nuclides ^288,289114, ²⁹²116 and ²⁹⁴118 produced in the 3n and 4n-evaporation channels. The present observations can be considered to be experimental evidence of the existence of the "island of stability" of superheavy elements.