Measurement of four-jet differential cross sections in $\sqrt{s}=8$ TeV proton-proton collisions using the ATLAS detector

Abstract

Differential cross sections for the production of at least four jets have been measured in proton-proton collisions at $\sqrt{s}=8$ TeV at the Large Hadron Collider using the ATLAS detector. Events are selected if the four anti-$k_t$ R=0.4 jets with the largest transverse momentum ($p_T$) within the rapidity range $|y|<2.8$ are well separated ($d{R}_{4j}^{\min }>0.65$), all have $p_T>64$ GeV, and include at least one jet with $p_T>100$ GeV. The dataset corresponds to an integrated luminosity of 20.3 $f{b}^{-1}$. The cross sections, corrected for detector effects, are compared to leading-order and next-to-leading-order calculations as a function of the jet momenta, invariant masses, minimum and maximum opening angles and other kinematic variables.

59 pages plus author list (75 pages total), 19 figures, 49 tables, published version, all figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2014-14/

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• Azimuthal correlations for inclusive 2-jet, 3-jet, and 4-jet events in pp collisions at $\sqrt{s}=$ 13 TeV
• Measurement of double-parton scattering in inclusive production of four jets with low transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
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