Initial-State Selective Study of Ionization Dynamics in Ion-Li Collisions
Kinematically complete experiments were performed on the ionization of a laser-cooled lithium target from different initial states, Li(2s), Li(2p) and Li(1s), by 6 MeV H+ and 1.5 MeV amu-1 O8+ impact. In the measured doubly differential cross sections as a function of electron energy and transverse momentum transfer, a significant initial state dependence is found. Furthermore, comparison to quantum mechanical theory shows surprising discrepancies for Li(2s) and Li(1s) while there is good agreement for the Li(2p) initial state.
A. C. Laforge and R. Hubele and J. Goullon and X. Wang and K. R. Schneider and V. L. De Jesus and B. Najjari and A. B. Voitkiv and M. Grieser and M. Schulz and D. Fischer, "Initial-State Selective Study of Ionization Dynamics in Ion-Li Collisions," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 46, no. 3, Institute of Physics - IOP Publishing, Feb 2013.
The definitive version is available at https://doi.org/10.1088/0953-4075/46/3/031001
Keywords and Phrases
Complete Experiment; Doubly Differential Cross Sections; Electron Energies; Initial State; Ionization Dynamics; Laser-cooled Lithium; Quantum-mechanical Theory; Transverse Momenta; Quantum Theory
International Standard Serial Number (ISSN)
Article - Journal
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01 Feb 2013