Title

Experimental Separation of the Thomas Charge-Transfer Process in High-Velocity p-He Collisions

Abstract

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.

Department(s)

Physics

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)

1050-2947

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 American Physical Society (APS), All rights reserved.

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