Theoretical and experimental study of interference effects in ionization of hydrogen molecules by fast electron impact

S. CHATTERJEE; D. MISRA; A. H. KELKAR; L. C. TRIBEDI; C. R. STIA; O. A. FOJÓN; R. D. RIVAROLA

Paris, Francia

Conferencia; International Conference on many particle spectroscopy of atoms, molecules, clusters and surfaces; 2008

Present new experimental data of DDCS´s for impact of 8 keV-electrons on H2 are compared with theoretical DDCS. The agreement is very good for different fixed ejection angles as a function of the ejection velocity and also as a function of the ejection angle at different fixed ejection velocities. Agreement is also observed for the case of an electron beam colliding with He targets under the same kinematical conditions. Experimental DDCS´s as a function of the final energy and as a function of the final angle subtended by the ionized electron are divided by calculated DDCS´s for two effective H and also for He targets. The results obtained are compared with the corresponding fully theoretical DDCS ratios, supporting the presence of interference patterns in (e,2e) processes.