Search for superheavy elements using the 48Ca+254Esg reaction
Abstract
We measured upper limits for the production of superheavy elements from the compound nucleus reaction 48Ca+254Es. This combination permits the closest approach to the predicted island of stability at the 184 closed-neutron shell of any practical fusion reaction. We used aqueous and gas-phase separations to isolate superheavy element fractions within an hour from the end of the bombardments. In these experiments we did not observe superheavy elements above a limit of 3×10-31 cm2 for spontaneous-fission half-lives from fractions of a day to a few months.
- Publication:
-
Physical Review C
- Pub Date:
- November 1985
- DOI:
- Bibcode:
- 1985PhRvC..32.1760L
- Keywords:
-
- 25.70.Jj;
- 21.65.+f;
- 23.90.+w;
- Fusion and fusion-fission reactions;
- Nuclear matter;
- Other topics in radioactive decay and in-beam spectroscopy