Single electron capture in low-energy Kr+He collisions Original Research Article

Absolute differential and total cross sections for electron capture have been measured for Kr+ incident on He at impact energies between 1.0 to 5.0 keV and over the laboratory angular range −3° to 3°. The reduced differential cross sections present a maximum at a value of τ 2~ 1.3 keV deg independent of energy. The behaviour of the measured cross sections is compared with a semi-empirical model for near-resonant charge transfer.