Differential Charge-Transfer Studies inH++Ne→H(1s,2p,2s)+Ne+

Abstract

Single collisions of protons with neon atoms have been studied at a laboratory scattering angle of 3° for proton energies between 2 and 20 keV. The measured differential-scattering cross section for the sum of elastic, inelastic, and charge-transfer collisions compares in order of magnitude with classical potential-scattering calculations based on the work of Dose and Bingham, with the best agreement at higher energies. The measured total cross section for charge transfer to $\mathrm{H}\mathrm{}\left(2p\right)\mathrm{}$ shows good agreement in shape and magnitude with previous measurements of Pretzer, VanZyl, and Geballe. The measured probability of total charge transfer and the measured probabilities of change transfer to $\mathrm{H}\mathrm{}\left(2s\right)\mathrm{}$ and $\mathrm{H}\mathrm{}\left(2p\right)\mathrm{}$ are discussed in terms of a two-state theory.