Existence of a one-body barrier revealed in deep subbarrier fusion

Takatoshi Ichikawa, Kouichi Hagino, Akira Iwamoto

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


We propose a two-step model for heavy-ion fusion reactions based on the adiabatic approach in order to account for steep fall-off of fusion cross sections at deep subbarrier energies. The two-step model consists of the capture process in the two-body potential pocket, which is followed by the penetration of the adiabatic one-body potential to reach a compound state after the touching configuration. We argue that although the sudden and adiabatic approaches provide a similar result to each other for the fusion cross section, the two approaches can be discriminated by detecting average angular momenta of a compound nuclei.

Original languageEnglish
Pages (from-to)32-37
Number of pages6
JournalAIP Conference Proceedings
Publication statusPublished - 2009 May 5
EventInternational Conference on New Aspects of Heavy Ion Collisions near the Coulomb Barrier, FUSION08 - Chicago, IL, United States
Duration: 2008 Sep 222008 Sep 26


  • Coupled-channel calculations
  • Deep-subbarrier fusion

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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