München 2006 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 25: Theorie
HK 25.2: Vortrag
Dienstag, 21. März 2006, 17:15–17:30, B
Capture in collisions of heavy nuclei leading to superheavy elements — •Zoltan Gagyi-Palffy1, Nikolai Antonenko1,2, and Werner Scheid1 — 1Institut für Theoretische Physik der Justus-Liebig-Universität, D-35392 Giessen, Germany — 2Joint Institute for Nuclear Research, 141980 Dubna, Russia
Capture in collisions of heavy nuclei represents the first stage in the formation of superheavy elements, and its cross section heavily influences the cross section for new element formation. This process is studied in the framework of the dinuclear system (DNS) concept, taking into account various assumptions about dissipation of the collective kinetic energy.
Classical equations of motion for the relative distance and orbital angular momentum are solved for the reaction 64Ni + 208Pb for energies just above the barrier. The interest for this system is motivated by the shallow well of the nucleus-nucleus interaction potential even for low values of the orbital angular momentum.