Special Seminar: Status and perspectives of research on superheavy-nuclei

by Dr Sigurd Hofmann (GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany)

Thursday 1 Mar 2012, 13:30 → 15:00 Asia/Tokyo

Nishina Hall

Theoretical studies present a quite detailed picture on the stability of nuclei in the region of the heaviest elements. Three regions of increased stability exist. Two for deformed nuclei at proton and neutron numbers Z = 100 and N = 152 and the other one at Z = 108 and N = 162. The third region is located at Z = 114, 120 or 126 and N = 184 for spherical nuclei with closed shells or subshells. Experimentally, the existence of these regions of increased stability is established by synthesis of nuclei in cold fusion reactions using lead or bismuth targets and in hot fusion reactions based on actinide targets. The present status of experiments will be reported. Also discussed will be technical improvements and application of various methods for further exploration of the island of stability.