Measurement of dijet azimuthal decorrelations in pp collisions at sqrt(s)=7 TeV

Phys Rev Lett. 2011 Apr 29;106(17):172002. doi: 10.1103/PhysRevLett.106.172002. Epub 2011 Apr 29.

Abstract

Azimuthal decorrelations between the two central jets with the largest transverse momenta are sensitive to the dynamics of events with multiple jets. We present a measurement of the normalized differential cross section based on the full data set (∫Ldt=36 pb(-1)) acquired by the ATLAS detector during the 2010 sqrt(s)=7 TeV proton-proton run of the LHC. The measured distributions include jets with transverse momenta up to 1.3 TeV, probing perturbative QCD in a high-energy regime.