Doubly differential cross sections for single ionization of atomic hydrogen by 75 keV proton impact have been measured and calculated as a function of the projectile scattering angle and energy loss. This pure three-body collision system represents a fundamental test case for the study of the reaction dynamics in few-body systems. A comparison between theory and experiment reveals that three-body dynamics is important at all scattering angles and that an accurate description of the role of the projectile-target-nucleus interaction remains a major challenge to theory.
A. Hasan et al., "Three-body Dynamics in Single Ionization of Atomic Hydrogen by 75 KeV Proton Impact," Physical Review Letters, American Physical Society (APS), Jul 2009.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevLett.103.053201
National Science Foundation (U.S.)
Keywords and Phrases
Impact Ionization; Scattering; Atoms; Energy dissipation; Hydrogen; Projectiles; Protons
Article - Journal
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