Remarks on the fission barriers of super-heavy nuclei

S. Hofmann, S. Heinz, R. Mann, J. Maurer, G. Münzenberg, S. Antalic, W. Barth, L. Dahl, K. Eberhardt, R. Grzywacz, J. H. Hamilton, R. A. Henderson, J. M. Kenneally, B. Kindler, I. Kojouharov, R. Lang, B. Lommel, K. Miernik, D. Miller, K. J. MoodyK. Morita, K. Nishio, A. G. Popeko, J. B. Roberto, J. Runke, K. P. Rykaczewski, C. Scheidenberger, D. A. Shaughnessy, M. A. Stoyer, P. Thörle-Pospiech, K. Tinschert, N. Trautmann, J. Uusitalo, A. V. Yeremin

研究成果: Contribution to journalArticle

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Shell-correction energies of super-heavy nuclei are approximated by using (Formula presented.) 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. Arguments are presented that fusion reactions for synthesis of isotopes of elements 118 and 120 may have higher cross-sections than assumed so far.

元の言語英語
記事番号116
ジャーナルEuropean Physical Journal A
52
発行部数4
DOI
出版物ステータス出版済み - 4 1 2016

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Hofmann, S., Heinz, S., Mann, R., Maurer, J., Münzenberg, G., Antalic, S., Barth, W., Dahl, L., Eberhardt, K., Grzywacz, R., Hamilton, J. H., Henderson, R. A., Kenneally, J. M., Kindler, B., Kojouharov, I., Lang, R., Lommel, B., Miernik, K., Miller, D., ... Yeremin, A. V. (2016). Remarks on the fission barriers of super-heavy nuclei. European Physical Journal A, 52(4), [116]. https://doi.org/10.1140/epja/i2016-16116-0