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Effect of distortion in electron impact excitation in Coulomb-projected Born approximation
Authors:V Kumar  B N Roy  D K Rai
Affiliation:(1) Department of Physics, Bihar University, 842 001 Muzaffarpur, India;(2) Department of Physics, Banaras Hindu University, 221 005 Varanasi, India
Abstract:We have calculated total and differential cross-sections for 1sns (n = 2, 3, 4) electron impact excitation of hydrogen and hydrogenic ions at various energies in Coulomb-projected Born approximation. Distortion due to static interactions, target polarization and exchange effects has been incorporated in the initial channel. The present calculations have been compared with other theoretical and experimental results.
Keywords:Coulomb-projected Born method  distorted wave  electron impact excitation  exchange potential  target polarization
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