Résumé du preprint DAPNIA-04-300

Measurement of the dijet azimuthal decorrelations at central rapidities in IN PP-BAR collisions at SQRT(S)=1.96 TEV
V.M. Abazov, et al.
Correlations in the azimuthal angle between the two largest transverse momentum jets have been measured using the D0 detector in pp-bar collisions at a center-of-mass energy sqrt(s)=1.96 TeV. The analysis is based on an inclusive dijet event sample in the central rapidity region corresponding to an integrated luminosity of 150 pb-1. Azimuthal correlations are stronger at larger transverse momenta. These are well-described in perturbative QCD at next-to-leading order in the strong coupling constant, except at large azimuthal differences where soft effects are significant.


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