Influence of Effective Tensor Forces on the Fission Barriers of Nuclei in the Uranium Region |
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Authors: | S V Tolokonnikov I N Borzov Yu S Lyutostansky E E Saperstein |
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Institution: | 1.National Research Center Kurchatov Institute,Moscow,Russia;2.Moscow Institute of Physics and Technology (State University),Dolgoprudnyi, Moscow region,Russia;3.Joint Institute for Nuclear Research,Dubna, Moscow region,Russia;4.National Research Nuclear University MEPhI (Moscow Engineering Physics Institute),Moscow,Russia |
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Abstract: | The influence of effective tensor forces on the fission barriers of nuclei in the uranium region has been studied. A modified Fayans energy density functional (EDF) FaNDF0-a, which differs from the initial energy density functional FaNDF0 in the inclusion of strong effective tensor interaction, has been proposed. For the 236U and 238U isotopes, this results in a significant, about 1 MeV, reduction of the first barrier, approaching the values to the known experimental values. However, a noticeable, about the same order of magnitude, difference from these experimental values remains. Possible reasons for this remaining difference are discussed. |
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