ELECTRON IMPACT EXCITATION OF THE 2P STATE OF ATOMIC HYDROGEN.
QUEEN'S UNIV BELFAST (NORTHERN IRELAND) DEPT OF APPLIED MATHEMATICS
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A discrepancy in the analysis of Corinaldesi and Trainor is pointed out and it is shown that the correct procedure leads to a non-vanishing expression for the exchange scattering amplitude given by the BornOppenheimer approximation for excitation of the m 1 levels of the 2p state of atomic hydrogen by electron impact. This expression is employed to correct earlier calculations of the is - 2p excitation total cross-section. Author