Dynamic Approach to Fusion of Massive Nuclei.pdf

Dynamic approach to fusion of massive nuclei. 1 1,2 R.V.Jolos and A.K. Nasirov Joint Institute for Nuclear Research, 141980, Dubna, Russia A.I.Muminov2 7 Heavy Ion Physics Department, Institute of Nuclear Physics 9 9 702132 Ulugbek, Tashkent, Uzbekistan 1 p (February 9, 2008) e S 9 1 Abstract 1 v 7 3 0 9 0 The role of the entrance channel in the fusion-fission reactions leading to 7 9 nearly the same superheavy compound nucleus is studied in the framework of / h 48 244 74,76 t dynamic model. The calculations are done for Ca + Pu and Ge + - l c 208Pb reactions which could lead to formation of superheavy element Z = 114. u n : It is shown that for these reactions there is an energy window for the values v i X of the bombarding energy at which a capture probability is sufficiently large. r a 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, 25.70.Jj Typeset using REVT X E 0 I. INTRODUCTION