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Electron capture at very small scattering angles from atomic hydrogen by 25-125-keV protons

1981; American Institute of Physics; Volume: 23; Issue: 6 Linguagem: Inglês

10.1103/physreva.23.3357

0556-2791

Philip Martin, D. M. Blankenship, T. J. Kvale, E. Redd, J. L. Peacher, J. T. Park,

Advanced Chemical Physics Studies

Differential cross sections for electron capture in collisions between protons and hydrogen atoms have been experimentally determined for incident proton energies of 25, 60, and 125 keV in the center-of-mass scattering-angle range of 0-3 mrad. The experimental results compare more favorably with the results of both a multistate and a two-state calculation than with the results of a continuum distorted-wave-approximation calculation. There is no evidence of a Jackson-Schiff-type minimum.