Event generation w ith SH ER PA 1.1

In thispaperthe currentrelease ofthe M onte Carlo eventgeneratorSherpa,version 1.1,ispresented. Sherpa is a general-purpose toolfor the sim ulation ofparticle collisions at high-energy colliders. It containsaveryexibletree-levelm atrix-elem entgeneratorforthecalculationofhard scatteringprocesses within the Standard M odeland variousnew physicsm odels. The em ission ofadditionalQCD partons