Update on the jet energy scale systematic uncertainty for jets produced in proton-proton collisions at $\sqrt{s}=7$~TeV measured with the ATLAS detector

An update to the jet energy scale systematic uncertainty for inclusive jets measured in the ATLAS detector and produced in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$~TeV is described. The jet energy scale systematic uncertainty for jets reconstructed with the \antikt~algorithm with distance parameters of $R=0.4$ and $R=0.6$ is evaluated starting from a transverse momentum of $20$~GeV and for a calorimeter coverage up to pseudo-rapidities of $|\eta| = 4.5$. In the central detector region the jet energy scale uncertainty is obtained from the single isolated hadron response measured in-situ in proton proton collisions and in the ATLAS combined test-beam for pion momenta up to $350$~GeV. Further uncertainties are evaluated with systematic variations of Monte Carlo simulations. The uncertainty is extended to the endcap and forward detector regions exploiting the transverse momentum balance between a central and a forward jet in events where only two jets are produced. The JES uncertainty as a function of transverse momentum and pseudo-rapidity is found to be similar for both distance parameters studied. For jets with no additional multiple proton-proton interactions for low transverse momentum central jets ($|\eta|<0.8$) is about $6\%$, while jets with transverse momenta above $200$~GeV have an uncertainty of less than 4\%. In the endcap ($|\eta|<3.2$) and forward region ($|\eta|<4.5$) the uncertainty amount s to about $9\%$ and $15\%$, respectively. The additional uncertainty contribution due to multiple proton-proton interactions is included as a separate contribution to the systematic uncertainty and it is evaluated as a function of the number of primary vertices in the event. For events with two primary vertices,it is shown to contribute less than 2\% in the central region and less than 16\% in the endcap and forward region, and it is negligible for jets with transverse momentum above 200~GeV and~$|\eta|<2.8$.