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T: Teilchenphysik

T 608: QCD IV

T 608.7: Talk

Thursday, March 13, 2003, 12:00–12:15, SFO11

Studies of 4-jet event shape observables with OPAL and JADE — •Stefan Kluth, Mona Blumenstengel, Pedro Movilla Fernandez, Christoph Pahl, and Jochen Schieck — Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 München

Hadronic final states in e⁺e⁻ annihilation are studied with event shape observables which are sensitive to configurations with at least four hard partons. We use data from the experiments JADE and OPAL ranging from √s=14 to 202 GeV and compare the data to predictions from Monte Carlo generators as well as from perturbative QCD.