Using the reaction microscope technique,we have performed kinematically complete measurements for single capture in He+collisions with He at 30 and 100 keV[1].The state-selective and the angular-differential cross sections were extracted from the experimental data and compared with our theoretical calculations based on the dynamic-screening classical trajectory Monte Carlo method(dCTMC).The measured recoil-ion longitudinal momentum distributions are shown in Fig.1.
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