Experimental Separation of the Thomas Charge-Transfer Process in High-Velocity p-He Collisions
We present differential cross sections of electron capture in 7.5 MeV and 12.5 MeV proton-helium collisions. Complete experimental separations of the Thomas and the kinematic single electron capture processes in the two-dimensional He+ momentum distribution in the plane perpendicular to the fast ion beam have been achieved. We compare the resulting projectile angular differential cross section with the two most recent theoretical calculations and expose significant deviations.
D. Fischer et al., "Experimental Separation of the Thomas Charge-Transfer Process in High-Velocity p-He Collisions," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 73, no. 5, pp. 052713-1-052713-5, American Physical Society (APS), May 2006.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevA.73.052713
Keywords and Phrases
Helium; Ion Beams; Kinematics; Motion Estimation; Projectiles; Protons; Differential Cross Sections; Electron Capture; Proton-helium Collisions; Thomas Charge Transfer Process; Charge Transfer
International Standard Serial Number (ISSN)
Article - Journal
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