Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2006-01-09
PoS HEP2005:051,2006
Physics
High Energy Physics
High Energy Physics - Experiment
Presented at HEP2005 International Europhysics Conference on High Energy Physics, July 21st - 27th 2005, Lisboa, Portugal (4 p
Scientific paper
We present a preliminary measurement of the inclusive jet cross-sections based on an integrated luminosity of 378 pb^{-1} acquired with the D0 detector between 2002 and 2004 at a center of mass energy of \sqrt{s}=1.96 TeV and a measurement of azimuthal dijet decorrelations based on an integrated luminosity of 150 pb^{-1}. The cross section measurements are based on an iterative cone algorithm with a cone size of R=0.7. They are performed in two rapidity bins between 0.0 and 0.8. The measurements are in good agreement with next to leading order calculations. The azimuthal angle between the two leading jets is sensitive to higher order QCD effects. The measurement of dijet azimuthal decorrelations therefore probes these effects without explicitly reconstructing more than two jets. Except for large azimuthal angles where soft effects are important the measurements are well described by the next to leading order perturbation theory.
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