Abstract
We have determined absolute charge transfer and fragmentation cross sections in collisions in the impact-energy range 0.1–250 keV by using a combined experimental and theoretical approach. We have found that the cross sections for the formation of and are comparable in magnitude, which cannot be explained by the sole contribution of pure single and double electron capture but also by contribution of transfer-ionization processes that are important even at low impact energies. The results show that multifragmentation is important only at impact energies larger than 40 keV; at lower energies, sequential evaporation is the dominant process.
- Received 16 October 2007
DOI:https://doi.org/10.1103/PhysRevLett.100.183401
©2008 American Physical Society