Abstract
The question of corrections to the impulse approximation of quasi- elastic gamma -d scattering is examined in a certain energy range. The problem of obtaining the correct lowenergy limit is avoided by using simple perturbation theory, which allows a single meson to be exchanged by the nucleons as a correction. The scattering amplitude obtained in this way at low energy approaches a value larger than the Thomson deuteron or proton limit. The differential cross section with averaged polarization is given. With certain assumptions, the angular function is the same as that of the Thomson amplitude. Results from gamma -d scattering at approximately 90 Mev give deviations from the impulse approximation larger than those from the calculations. (D.L.C.)
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