SLOW ELECTRON COLLISIONS WITH HYDROGEN ATOMS (in Russian)
The excitation cross sections of the hydrogen atom were computed by taking into account the strong coupling of all three 1s, 2s, and 2p levels along with exchange effects. The calculations were carried out for 5 values of the total orbital moment: L= 0, 1, 2, 3, and 4. At L > 0, both scattered waves (with moments L plus or minus 1) were considered in the excitation of the 2p level. The linear integral-differential equations were solved directly on a digital computer. Elements of the T-matrix were tabulated for the singlet (+) and triplet (--) cases. The direct, exchange, interference, average, single, and triplet partial cross sections, and also the sum of these cross sections, were tabulated for elastic scattering and excitation of the 2s and 2p levels at L= 0, 1, 2, 3, and 4. Consideration of all couples between the 1s, 2s, and 2p levels had a significant effect on the excitation cross section of the 2s and 2p levels. The calculated results for the total average cross section 0(1s-2s) and for the exchange cross section were in agreement with experimental results. The theoretical partial excitation cross section for the 2p level did not agree with the experimental value. The reason for the disagreement was not clear. The calculated elastic scattering cross section in the ground state was in agreement with the experimental value. (TTT)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-18-009024
- OSTI ID:
- 4103073
- Journal Information:
- Trudy Instituta Fiziki, Akademiya Nauk Latviiskoi SSR (Latvian S.S.R.), Vol. Vol: 13; Other Information: Orig. Receipt Date: 31-DEC-64
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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