Study of hadronic event-shape variables in multijet final states in pp collisions at s = 7 tev
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CERN 2014. All rights reserved. Event-shape variables, which are sensitive to perturbative and nonperturbative aspects of quantum chromodynamic (QCD) interactions, are studied in multijet events recorded in proton-proton collisions at s = 7TeV. Events are selected with at least one jet with transverse momentum pT > 110 GeV and pseudorapidity || < 2.4, in a data sample corresponding to integrated luminosities of up to 5 fb1. The distributions of five event-shape variables in various leading jet pT ranges are compared to predictions from different QCD Monte Carlo event generators.