Work in the QCD, Luminosity, Forward Physics and Background Simulation groups is leading ATLAS to examine a number of Monte Carlo event generators to assess how well (or poorly) any of these generators describe basic event features. Event generators include
and maybe others. Some of them are already interfaced to Athena, and the remainder are expected to be before this project starts. Athena provides a common platform for this study. We plan to define a set of distributions for comparison with data and for expectations in ATLAS. It is anticipated that a number of people will work in parallel, each person (or small group) focusing on one generator, so all the generators could be studied in a short time.