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Phys. Rev. C 73, 014613 (2006) [5 pages]

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

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C. L. Jiang, B. B. Back, H. Esbensen, R. V. F. Janssens, and K. E. Rehm
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

Received 18 July 2005; published 27 January 2006

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.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.73.014613
DOI:
10.1103/PhysRevC.73.014613
PACS:
24.10.Eq, 25.70.Jj