Remarks on the fission barriers of super-heavy nuclei
- GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany); Goethe Univ., Frankfurt (Germany). Institut fur Physik
- GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
- Comenius Univ., Bratislava (Slovakia). Dept. of Nuclear Physics and Biophysics
- Johannes Gutenberg Univ., Mainz (Germany)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Warsaw (Poland)
- Univ. of Tennessee, Knoxville, TN (United States)
- RIKEN, Saitama (Japan). Nishina Center for Accelerator-Based Science
- Japan Atomic Energy Agency (JAEA), Tokai (Japan)
- Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Jyvaskyla (Finland). Dept. of Physics
Shell-correction energies of super-heavy nuclei are approximated by using QαQα values of measured decay chains. Five decay chains were analyzed, which start at the isotopes 285Fl, 294118, 291Lv, 292Lv and 293Lv. The data are compared with predictions of macroscopic-microscopic models. Fission barriers are estimated that can be used to eliminate uncertainties in partial fission half-lives and in calculations of evaporation-residue cross-sections. In that calculations, fission probability of the compound nucleus is a major factor contributing to the total cross-section. The data also provide constraints on the cross-sections of capture and quasi-fission in the entrance channel of the fusion reaction. Here, arguments are presented that fusion reactions for synthesis of isotopes of elements 118 and 120 may have higher cross-sections than assumed so far.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Grant/Contract Number:
- AC05-00OR22725; AC52-07NA27344; 1/0576/13; APVV-0105-10
- OSTI ID:
- 1482453
- Alternate ID(s):
- OSTI ID: 1410057
- Report Number(s):
- LLNL-JRNL-668657
- Journal Information:
- European Physical Journal. A, Vol. 52, Issue 4; ISSN 1434-6001
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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