Zbigniew Was - Monte Carlo programs for Tau Lepton Physics, Tauola Photos and Tauspinner : Description and development history.

Speaker: Zbigniew Was, Institute of Nuclear Physics, Cracow, Poland

Abstract: One of the necessary step in confronting theory and experiment for accelerator experiments, is construction of the Monte Carlo programs simulating processes to be measured, using distributions calculated from theory. Agreement confirms theory, discrepancy point to New Physics phenomena or insufficent sophisticaltion of theoretical calculations. With the help of Monte Carlo simulations all theoretical and experimental effects can be simultaneously taken into account. In the present talk we will concentrate on tau lepton Monte Carlo generatiors; their use and decisive turning points in their development. Tauola, Photos and TaSpinner from part of the Monte Carlo spanned over more than 30 years now.