Strong Isotope Effects on the Charge Transfer in Slow Collisions of He{sup 2+} with Atomic Hydrogen, Deuterium, and Tritium
Journal Article
·
· Physical Review Letters
- Quantum Theory Project, Departments of Physics and Chemistry, University of Florida, Gainesville, Florida 32611-8435 (United States)
- KVI Atomic Physics, Rijksuniversiteit Groningen, NL 9747 AA Groningen (Netherlands)
Probabilities and cross sections for charge transfer by He{sup 2+} impact on atomic hydrogen (H), deuterium (D), and tritium (T) at low collision energies are calculated. The results are obtained using an ab initio theory, which solves the time-dependent Schroedinger equation. For the H target, excellent agreement is achieved between the present and previous results. Differences by orders of magnitude are observed between the cross sections for H, D, and T. A method is introduced to separate the contributions of charge-transfer mechanisms due to radial and rotational coupling. The large differences observed for H, D, and T are attributed to isotope effects in the rotational coupling mechanism.
- OSTI ID:
- 21028193
- Journal Information:
- Physical Review Letters, Vol. 99, Issue 10; Other Information: DOI: 10.1103/PhysRevLett.99.103201; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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