Calculations have been carried out for the processes using a two‐centered expansion in travelling‐wave hydrogen orbitals. New four‐state calculations were done with 1s, 2s, 2p0 and 2p1 states included. After taking proper account of the asymptotic coupling between states, our cross sections are in close agreement with those of Cheshire, Gallaher, and Taylor. In addition, seven‐state calculations were performed by including the 3s, 3p0, and 3p1 states. A comparison of four‐ and seven‐state results shows that the convergence of the cross sections for the n=2 states appears to be fairly rapid.
Topics
Chemical elements
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Our A and  are the same as G and Ĝ of Wilets and Gallaher in their Eq. (29). Also, our S is the same as their N, and our G is their H.
11.
The long range coupling between and states was inadvertently neglected in the asymptotic region (). This should not affect the and cross sections, but could cause slight errors in the calculated polarizations.
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© 1972 The American Institute of Physics.
1972
The American Institute of Physics
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