Systematics of heavy-ion fusion hindrance at extreme sub-barrier energies

Abstract

The recent discovery of hindrance in heavy-ion induced fusion reactions at extreme sub-barrier energies represents a challenge for theoretical models. Previously, it has been shown that in medium-heavy systems, the onset of fusion hindrance depends strongly on the "stiffness" of the nuclei in the entrance channel. In this work, we explore its dependence on the total mass and the $Q$-value of the fusing systems and find that the fusion hindrance depends in a systematic way on the entrance channel properties over a wide range of systems.

Submitted to Phys. Rev. Lett., 5 pages, 3 figures

References in corpus (4)

• Quantum Tunneling in Nuclear Fusion
• Influence of nuclear structure on sub-barrier hindrance in Ni+Ni fusion
• Hindrance of Heavy-ion Fusion at Extreme Sub-Barrier Energies in Open-shell Colliding Systems
• Validity of the linear coupling approximation in heavy-ion fusion reactions at sub barrier energies

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