Remarks on the fission barriers of super-heavy nuclei
Abstract
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.
- Authors:
-
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- 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
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1482453
- Alternate Identifier(s):
- OSTI ID: 1410057
- Report Number(s):
- LLNL-JRNL-668657
Journal ID: ISSN 1434-6001
- Grant/Contract Number:
- AC05-00OR22725; AC52-07NA27344; 1/0576/13; APVV-0105-10
- Resource Type:
- Accepted Manuscript
- Journal Name:
- European Physical Journal. A
- Additional Journal Information:
- Journal Volume: 52; Journal Issue: 4; Journal ID: ISSN 1434-6001
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
Citation Formats
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., Moody, K. J., Morita, K., Nishio, K., Popeko, A. G., Roberto, J. B., Runke, J., Rykaczewski, K. P., Scheidenberger, C., Shaughnessy, D. A., Stoyer, M. A., Thörle-Pospiech, P., Tinschert, K., Trautmann, N., Uusitalo, J., and Yeremin, A. V. Remarks on the fission barriers of super-heavy nuclei. United States: N. p., 2016.
Web. doi:10.1140/epja/i2016-16116-0.
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., Moody, K. J., Morita, K., Nishio, K., Popeko, A. G., Roberto, J. B., Runke, J., Rykaczewski, K. P., Scheidenberger, C., Shaughnessy, D. A., Stoyer, M. A., Thörle-Pospiech, P., Tinschert, K., Trautmann, N., Uusitalo, J., & Yeremin, A. V. Remarks on the fission barriers of super-heavy nuclei. United States. https://doi.org/10.1140/epja/i2016-16116-0
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., Moody, K. J., Morita, K., Nishio, K., Popeko, A. G., Roberto, J. B., Runke, J., Rykaczewski, K. P., Scheidenberger, C., Shaughnessy, D. A., Stoyer, M. A., Thörle-Pospiech, P., Tinschert, K., Trautmann, N., Uusitalo, J., and Yeremin, A. V. Wed .
"Remarks on the fission barriers of super-heavy nuclei". United States. https://doi.org/10.1140/epja/i2016-16116-0. https://www.osti.gov/servlets/purl/1482453.
@article{osti_1482453,
title = {Remarks on the fission barriers of super-heavy nuclei},
author = {Hofmann, S. and Heinz, S. and Mann, R. and Maurer, J. and Münzenberg, G. and Antalic, S. and Barth, W. and Dahl, L. and Eberhardt, K. and Grzywacz, R. and Hamilton, J. H. and Henderson, R. A. and Kenneally, J. M. and Kindler, B. and Kojouharov, I. and Lang, R. and Lommel, B. and Miernik, K. and Miller, D. and Moody, K. J. and Morita, K. and Nishio, K. and Popeko, A. G. and Roberto, J. B. and Runke, J. and Rykaczewski, K. P. and Scheidenberger, C. and Shaughnessy, D. A. and Stoyer, M. A. and Thörle-Pospiech, P. and Tinschert, K. and Trautmann, N. and Uusitalo, J. and Yeremin, A. V.},
abstractNote = {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.},
doi = {10.1140/epja/i2016-16116-0},
journal = {European Physical Journal. A},
number = 4,
volume = 52,
place = {United States},
year = {Wed Apr 27 00:00:00 EDT 2016},
month = {Wed Apr 27 00:00:00 EDT 2016}
}
Web of Science
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Works referencing / citing this record:
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