We have measured fully differential cross sections for ionization of H2 by 75-keV proton impact. The coherence length of the projectile beam was varied by changing the distance between a collimating slit and the target. By comparing the cross sections measured for large and small coherence lengths pronounced interference effects could be identified in the data. A surprising result is that the phase angle in the interference term is primarily determined by the momentum transfer and only to a lesser extent by the recoil-ion momentum.
|Physical Review A - Atomic, Molecular, and Optical Physics
|Published - Nov 12 2014
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics