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

Cross sections for H(2p) charge-exchange excitation in H/sup +/-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)).