Correlation effects in differential electron-emission spectra obtained from double ionisation of He by fast Au53+ impact
作者： T. Kirchner , L. Gulyás , R. Moshammer , M. Schulz , J. Ullrich
DOI: 10.1016/S0168-583X(03)00572-X
关键词: Eikonal equation 、 Atomic physics 、 Emission spectrum 、 Ionization 、 Electron 、 Coincidence 、 Ground state 、 Helium 、 Electronic correlation 、 Physics
摘要: Abstract We have measured and calculated doubly differential electron-emission cross sections (DDCS’s) for well-defined degrees of target ionisation in 3.6 MeV/amu Au 53+ + He collisions. The calculations are based on the continuum distorted wave with eikonal initial state approximation. focus DDCS’s obtained coincidence double target, investigate different models final two-electron state. Whereas results an analysis within independent particle model overestimate experimental data badly, we find reduced when electron correlation effects included a relatively simple fashion. comparison between theoretical indicates that effective strength repulsion differs close distant
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