Fusion at deep subbarrier energies: Potential inversion revisited

K. Hagino, N. Rowley

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

For a single potential barrier, the barrier penetrability can be inverted based on the WKB approximation to yield the barrier thickness. We apply this method to heavy-ion fusion reactions at energies well below the Coulomb barrier and directly determine the inter-nucleus potential between the colliding nuclei. To this end, we assume that fusion cross sections at deep subbarrier energies are governed by the lowest barrier in the barrier distribution. The inverted inter-nucleus potentials for the l6O +144Sm and l6O +208Pb reactions show that they are much thicker than phenomenological potentials. We discuss a consequence of such thick potential by fitting the inverted potentials with the Bass function.

Original languageEnglish
Pages (from-to)18-25
Number of pages8
JournalAIP Conference Proceedings
Volume1098
DOIs
Publication statusPublished - 2009
EventInternational Conference on New Aspects of Heavy Ion Collisions near the Coulomb Barrier, FUSION08 - Chicago, IL, United States
Duration: 2008 Sep 222008 Sep 26

Keywords

  • Barrier distribution
  • Coupled-channels method
  • Heavy-ion fusion
  • Inter-nucleus potential

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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