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 language | English |
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Pages (from-to) | 18-25 |
Number of pages | 8 |
Journal | AIP Conference Proceedings |
Volume | 1098 |
DOIs | |
Publication status | Published - 2009 |
Externally published | Yes |
Event | International Conference on New Aspects of Heavy Ion Collisions near the Coulomb Barrier, FUSION08 - Chicago, IL, United States Duration: 2008 Sep 22 → 2008 Sep 26 |
Keywords
- Barrier distribution
- Coupled-channels method
- Heavy-ion fusion
- Inter-nucleus potential
ASJC Scopus subject areas
- Physics and Astronomy(all)