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Search for long-lived superheavy elements in the reaction of136Xe with238U |
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| Authors: | H Gäggeler W Brüchle H Ahrens H Folger G Franz J V Kratz M Schädel I Warnecke G Wirth N Trautmann G Herrmann N Kaffrell P Peuser G Tittel M Weber M Zendel |
| Institution: | 1. Gesellschaft für Schwerionenforschung, D-6100, Darmstadt, Germany 2. Institut für Kernchemie, Universit?t Mainz, D-6500, Mainz, Germany 3. GSI Darmstadt, Germany |
| Abstract: | A search with radiochemical methods for long-lived superheavy elements in 238U targets bombarded with intense beams of136Xe ions produced negative results. A formation cross section of ≤1×10?35 cm2 is deduced at 95% confidence level for nuclides with half-lives between 1 and 200 d. |
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