Sub-barrier fusion of intermediate and heavy nuclear systems

Details Sub-barrier fusion of intermediate and heavy nuclear systems Sub-barrier fusion of intermediate and heavy nuclear systems

2010-12-16

arxiv.org/abs/1012.3683v1

Physics

Nuclear Physics

Nuclear Theory

10 pages, 2 figures, 2 tables

Scientific paper

A potential model to describe the total cross section of nuclear fusion reactions at low energies is proposed. It is shown that within an approach with a simple, single barrier potential a satisfactory description of data is hindered, while with models with more complex interactions, e.g., with two-barrier potentials, a good description of data can be achieved in a large interval of colliding nuclei and center of mass energies. In particular, the two-barrier model allows to describe data at low, sub-barrier energies where data exhibits a steep falloff of the cross section. It is also shown that the position of the two barriers is almost independent up on masses of colliding nuclei. Comparison with available experimental data is presented as well.

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