Hindrance of heavy-ion fusion due to nuclear incompressibility

Abstract

We propose a new mechanism to explain the unexpected steep falloff of fusion cross sections at energies far below the Coulomb barrier. The saturation properties of nuclear matter are causing a hindrance to large overlap of the reacting nuclei and consequently a sensitive change of the nuclear potential inside the barrier. We report in this letter a good agreement with the data of coupled-channels calculation for the {64}Ni+{64}Ni combination using the double-folding potential with M3Y-Reid effective N-N forces supplemented with a repulsive core that reproduces the nuclear incompressibility for total overlap.

arXiv comment4 pages, 3 figures

References in corpus (4)

• Influence of nuclear structure on sub-barrier hindrance in Ni+Ni fusion
• Systematics of heavy-ion fusion hindrance at extreme sub-barrier energies
• Hindrance of Heavy-ion Fusion at Extreme Sub-Barrier Energies in Open-shell Colliding Systems
• Fusion cross sections at deep subbarrier energies

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