The role of the entrance channel in the fusion of massive nuclei
R.V. Jolos1 - A.I. Muminov2 - A.K. Nasirov2
1 Joint Institute for Nuclear Research, 141980, Dubna, Russia
2 Institute of Nuclear Physics, 702132 Ulugbek, Tashkent, Uzbekistan
Received: 15 July 1998 Communicated by V. Metag
The role of the entrance channel in the fusion-fission reactions leading to nearly the same superheavy compound nucleus is studied in the framework of dynamic model. The calculations are done for 48Ca + 244Pu and 74,76Ge + 208Pb reactions which could lead to formation of superheavy element Z=114. It is shown that for these reactions there is an energy window for the values of the bombarding energy at which a capture probability is sufficiently large. Together with the restriction coming from the intrinsic barrier for fusion, it helps to find an optimal value of the bombarding energy for a given projectile-target combination.
25.70.Gh Compoud nucleus - 25.70.Jj Fusion and fusion-fission reactions
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