Electroproduction of strangeness above the resonance region

A simple and elegant model, based on Reggeized t-channel exchanges, is successful in reproducing the main features of all existing data of the reactions $e\overrightarrow{p}{e}^{\prime }{K}^{+}\Lambda$ and $e\overrightarrow{p}{e}^{\prime }{K}^{+}{\Sigma }^0.$ In particular, the original way in which gauge invariance is taken into account is found to be essential to describe the ratio between the Coulomb and the transverse cross sections at large $Q^2$ that has been measured recently at the Jefferson Laboratory.