Fusion cross sections at deep sub-barrier energies

K. Hagino, N. Rowley, M. Dasgupta

Research output: Contribution to journalArticlepeer-review

83 Citations (Scopus)

Abstract

A recent publication reports that heavy-ion fusion cross sections at extreme sub-barrier energies show a continuous change of their logarithmic slope with decreasing energy, resulting in a much steeper excitation function compared with theoretical predictions. We show that the energy dependence of this slope is partly due to the asymmetric shape of the Coulomb barrier; that is, its deviation from a harmonic shape. We also point out that the large low-energy slope is consistent with the surprisingly large surface diffusenesses required to fit recent high-precision fusion data.

Original languageEnglish
Article number054603
Pages (from-to)546031-546034
Number of pages4
JournalPhysical Review C - Nuclear Physics
Volume67
Issue number5
Publication statusPublished - 2003 May 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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