Study on two-photon hadron production in e+e- collisions. Estimation of errors. Simplification of work formulae

Various experimental setups for the two-photon production of hadrons ee → eeh have been investigated. For experiments without tagging of scattered electrons (''no tag'') the theoretical uncertainty is shown to be very small, simple formulae for the data preparation have been obtained which permit to reduce significantly the theoretical uncertainty in the experiments with tagging of a single scattered electron (''single tag'')