Unexpected isotopic trends in synthesis of superheavy nuclei
G. G. AdamianInstitute of Nuclear Physics, 702132 Tashkent, UzbekistanN. V. AntonenkoJoint Institute for Nuclear Research, 141980 Dubna, RussiaW. ScheidInstitut für Theoretische Physik der Justus-Liebig-Universität, D-35392 Giessen, Germany
ABI
Abstract
The production cross section for the heaviest nuclei in the $^{48}\mathrm{Ca}$ induced hot fusion-evaporation reactions is shown to depend on the isotopic composition of actinide target. It is analyzed within the dinuclear system model for compound nucleus formation. In the actinide-based reactions most neutron-rich targets available for the experiment lead to smaller cross sections. New optimal reactions for the synthesis of superheavy nuclei are suggested.
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