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We use the SHERPA Monte Carlo generator to simulate the process$e^+e^-\rightarrow\mbox{hadrons}$ using matrix elements with up to six partonsin the final state. Two samples of SHERPA events are generated. In the "LO"sample, all final states are generated with leading order matrix elements; inthe "NLO" sample, matrix elements for final states with up to four partons aregenerated at next-to-leading order, while matrix elements for final states withfive or six partons are generated at leading order. The resulting samples arethen passed through the ALEPH detector simulation. We compare the Monte Carlosamples to each other, to samples generated using the KK2f generator interfacedwith PYTHIA, and to the archived ALEPH data at both LEP1 and LEP2 energies. Wefocus on four-jet observables with particular attention given to dijet masses.The LO and NLO SHERPA samples show significant improvement over the KK2fgeneration for observables directly related to clustering events into fourjets, while maintaining similar performance to KK2f for event-shape variables.We additionally reweight the dijet masses using LEP1 data and find that thisgreatly improves the agreement between the three Monte Carlo samples at LEP2energies for these observables.

Simulation of $e^+e^-\rightarrow\mbox{Hadrons}$ and Comparison to ALEPH Data at Full Detector Simulation with an Emphasis on Four-Jet States