Abstract

Radiative corrections of order α are computed for an experiment measuring the photon's hadronic or leptonic structure function F 2 λ ( x, Q 2). For the hard-photon contribution the peaking approximation is used. The total correction, for a typical experiment performed with present high-energy e +e − colliding-beam machines (PETRA, PEP), appears to vary with x and Q 2, ranging between minus and plus a few percent. It tends to increase in absolute value with the beam energy.

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