Precision tests of SM and pQCD with jets and photons at LHC

In this talk, I will present several aspects of jet and isolated photon production in pp collisions that have been measured by the ATLAS and CMS collaborations. The measurements of the production cross sections of inclusive jets, di-jet, tri-jet are presented double-differentially as function of jet pT and rapidity for the inclusive measurement and masses and the jet rapidity separation for the di- and tri-jet cases. They probe the dynamics of QCD and can constrain the parton structure of the proton. The cross sections are measured are compared to expectations based on next-to-leading order QCD calculations, as well as to next-to-leading order Monte Carlo simulations. A QCD analysis of these complementary data set is presented. Jet cross sections measurements of di-jet systems with a veto on additional jets, probe QCD radiation effects. The measurements of inclusive prompt photons and di-photons probe the dynamics of QCD and can constrain the parton proton structure. The inclusive prompt photon cross sections have been measured with high precision over a wide range of transverse momenta in both 7 TeV and 8 TeV pp collisions. The diphoton cross section has also been measured as a function of diphoton mass, total transverse momentum and azimuthal separation. The cross section for photons produced in association with jets is also measured as a function of various kinematic variables describing the photon+jet system. The cross sections are measured are compared to expectations based on (next-to-)next-to-leading order QCD calculations, as well as to leading order Monte Carlo simulations. on behalf of the ATLAS and CMS Collaborations