  We present a model of electron-positron pair production in pion-nucleon
collisions in the exclusive reaction \pi N -> Ne^+e^-. The model is based on an
effective field theory approach, incorporating 16 baryon resonances below 2
GeV. Parameters of the model are fitted to pion photoproduction data. We
present the resulting dilepton invariant mass spectra for \pi^- p collisions up
to sqrt(s)=1.9 GeV center-of-mass collision energy. These results are meant to
give predictions for the planned experiments at the HADES spectrometer in GSI,
Darmstadt.
