Fully Differential Study of Transfer Ionization Processes—a View into Correlated Many Particle Dynamics

Using Cold target recoil Ion momentum spectroscopy (COLTRIMS) we have investigated the production of one free electron in slow He2þ þHeð1s2Þ collisions. Kinematically complete data have been measured for all possible final states of the second electron, which is either still bound at the target or transferred to the projectile. The result will be discussed within the molecular orbital approach. Strong correlation between the bound electron final state and the electron emission pattern has been observed. This shows that the description of the electron emission from multi electron systems by a single active electron approach is not sufficient. 1