Fusion hindrance and roles of shell effects in superheavy mass region

Abstract

We present the first attempt of systematically investigating the effects of shell correction energy for a dynamical process, which includes fusion, fusion-fission and quasi-fission processes. In the superheavy mass region, for the fusion process, shell correction energy plays a very important role and enhances the fusion probability when the colliding partner has a strong shell structure. By analyzing the trajectory in three-dimensional coordinate space with the Langevin equation, we reveal the mechanism of the enhancement of the fusion probability caused by `cold fusion valleys'. The temperature dependence of shell correction energy is considered.

arXiv comment31 pages, 23 figures, Accepted for publication in Nuclear Physics A

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• Influence of fusion dynamics on fission observables: A multi-dimensional analysis
• Effects of Nuclear Structure on Quasi-fission
• A dynamical model of surrogate reactions
• Spin-dependent observables in surrogate reactions
• Effects of neck and nuclear orientations on the mass drift in heavy ion collisions
• Modeling of nuclear reactions with Langevin calculations