Fusion barrier distribution and superheavy elements

Abstract

The barrier distribution, originated from channel coupling effects in heavy-ion fusion reactions, has been extracted experimentally for many systems using either a fusion excitation function or an excitation function of large-angle quasi-elastic scattering. In this article, we discuss an application of the latter method to the ${}^{48}$Ca+${}^{248}$Cm system, which is relevant to hot fusion reactions to synthesize superheavy elements. To this end, we carry out coupled-channels calculations for this system, taking into account the deformation of the target nucleus, and discuss the role of deformation in a formation of evaporation residues.

7 pages, 4 figures. A talk given at the XLI Brazilian Meeting on Nuclear Physics, Maresias, Brazil, Sep. 2-6, 2018. To be published in the Journal of Physics: Conference Series

References in corpus (4)

• A program for coupled-channels calculations with all order couplings for heavy-ion fusion reactions
• Subbarrier fusion reactions and many-particle quantum tunneling
• Recent experimental results in sub- and near-barrier heavy ion fusion reactions
• Quasi-elastic barrier distribution as a tool for investigating unstable nuclei