Cross sections for charge-exchange excitation to H(2p) in proton-rare-gas-atom collisions (1-25 keV).

Abstract

Cross sections for H(2p) charge-exchange excitation in ${\mathrm{H}}^{+}$-He, -Ne, and -Ar collisions have been measured for incident energies between 1 and 25 keV. Large discrepancies with previous experimental results are observed for small energies. The present results for helium are in good agreement with calculations by Kimura and Lin [Phys. Rev. A 34, 176 (1986)].