Use of the momentum approximation in classical scattering calculations |
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| Authors: | C. Varelas R. Sizmann |
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| Affiliation: | 1. Sektion Physik , Universit?t München , D 8 Munich 40, FRG;2. Institut für Festk?rperforschung der Kernforschungsanlage Jülich , D 517, Jülich, FRG;3. Sektion Physik , Universit?t München , D 8 Munich 40, FRG |
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| Abstract: | Abstract The validity range of the momentum approximation in binary collisions : s investigated. It is shown that at high energies, E ? 10 · Z 1 Z 2 e 2/a TF, the approximation is even applicable to scattering angles ? as large as 60 degrees. An empirical formula for the evaluation of the momentum approximation employing the Thomas-Fermi-Moliére potential is given. It reduces the computer time to calculate ? to ～⊥10 of the time consumed in using the standard algebraic functions appearing in the momentum approximation. |
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| Keywords: | quartz EPR gamma radiation annealing sodium center |
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