Production of electron positron pairs is analysed with the hypothesis of the heavy electrone*. A rough agreement between theory and experiment is found if the coupling constant is suitably chosen as a function of the massm* of thee*. Comparison with upper limits for this coupling constant taken from inelastic electron proton scattering indicates that a heavy electron withm* between 120 MeV and 1 GeV cannot explain observed deviations from pure quantum electrodynamics.
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