Phys. Rev. A 70, 042705 (2004) [9 pages]Absolute differential and total cross sections for direct and charge-transfer scattering of keV protons by O2Received 12 April 2004; revised 8 June 2004; published 12 October 2004 Calculated and experimental differential direct, charge-transfer, and total scattering cross sections are presented for collisions of H+ with O2. Experimental cross sections are obtained for projectile energies of 0.5, 1.5, and 5.0 keV, and scattering angles of 0.15° to 5° while the theoretical results extend from 0.5 to 25 keV and encompass scattering angles from 0.01° to 180°. We find good agreement between the calculated and measured differential and total cross sections. Also, a diffraction slit effect, which is target orientation dependent, is found in the differential scattering cross section. A theoretical explanation of the effect is presented. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.042705
DOI:
10.1103/PhysRevA.70.042705
PACS:
34.50.−s, 34.70.+e
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