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Jet and Photon measurements from ATLAS
Differential measurements of inclusive jet and di-jet production provide stringent tests of higher order QCD predictions and provide inputs for determination of parton density functions. Inclusive jet multiplicity ratios are sensitive to the strong coupling constant $alpha_{S}$ and have reduced sens...
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Lenguaje: | eng |
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2013
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Acceso en línea: | https://dx.doi.org/10.1051/epjconf/20136014007 http://cds.cern.ch/record/1558974 |
Sumario: | Differential measurements of inclusive jet and di-jet production provide stringent tests of higher order QCD predictions and provide inputs for determination of parton density functions. Inclusive jet multiplicity ratios are sensitive to the strong coupling constant $alpha_{S}$ and have reduced sensitivity to the uncertainties due to parton distribution functions. Measurements of the inclusive prompt isolated photon and diphoton cross sections provide a direct probe of short-distance physics, complementary to that from measurements of jets or vector-bosons, and are sensitive to the gluon density of the proton. The measurements are compared to next-to-leading-order or higher-order QCD calculations. |
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