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Physics Letters B
We analyze the reaction e+e -~e+e-~° at low energies. By selecting the acceptance region for the energies and angles of the two leptons, one obtains a prediction where the relevance of the one loop correction to the tree level result can be modulated. This process is a good candidate to study the region of validity of chiral perturbation theory and the resonance models which have been proposed to merge the perturbative with the resonance dominated behaviour.doi:10.1016/0370-2693(92)90621-a fatcat:mg53pppiibhqjptqlerf3cmh6u