Comparison of deep inelastic electron-photon scattering events with predictions from the HERWIG and PHOJET Monte Carlo models

Tagged data from three LEP experiments have been analysed in an identical manner to produce hadron level distributions. These are compared to the HERWIG and PHOJET Monte Carlo models. For most of the distributions studied the results of the different experiments are closer to each other than the sizable differences which are found between the data and the models. The combined data provide an important input to improve the Monte Carlo models. An improvement to the HERWIG model based on these data is presented