Entrance channel potentials in the synthesis of the heaviest nucleiV.Yu. Denisov1, 2 and W. Nörenberg1, 3
1 Gesellschaft für Schwerionenforschung, D-64291 Darmstadt, Germany
2 Institute for Nuclear Research, 03680 Kiev, Ukraine
3 Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
(Received: 14 May 2002 / Published online: 26 November 2002)
Entrance channel potentials in nucleus-nucleus collisions, relevant for the synthesis of superheavy elements, are systematically studied within a semi-microscopic approach, where microscopic nuclear densities of the colliding spherical or deformed nuclei are used in semi-classical expressions of the energy-density functional. From experimental data on fusion windows evidence is found that the existence of pockets in the entrance channel potentials is crucial for fusion. Criteria for the choice of the best collision systems for the synthesis of superheavy elements are discussed.
25.60.Pj - Fusion reactions.
25.70.Jj - Fusion and fusion-fission reactions.
© Società Italiana di Fisica, Springer-Verlag 2002