Measurements of differential dijet cross section in proton-proton collisions at sqrt(s)=8 TeV with the CMS detector

Measurements of dijet production cross sections are presented. Data from LHC proton-proton collisions at $\sqrt{s}=8$ TeV, corresponding to 9.2 fb$^{-1}$ of integrated luminosity, have been collected with the CMS detector. Jets are reconstructed up to a rapidity 2.5 and a dijet invariant mass 5.5 TeV, using the anti-kt clustering algorithm with distance parameter $R=0.7$. The measured cross sections are corrected for detector effects and compared to perturbative QCD predictions at next-to-leading order, using five sets of parton distribution functions.