Hadronic Event Shapes in pp Collisions at 7 TeV Hadronic event shapes are studied with a data sample of 7~TeV proton-proton collisions collected with the CMS detector at the Large Hadron Collider (LHC). The size of the sample corresponds to an integrated luminosity of~78\,nb${}^{-1}$. Jets constructed with different techniques are used as input for calculating event-shape variables, which probe the structure of the hadronic final state. Normalized event-shape distributions are shown to be robust against various sources of systematic uncertainty. It is demonstrated that these early measurements of event-shape variables are sensitive to differences in the modeling of QCD multi-jet production. Data; 2010

http://cms.cern.ch/iCMS/analysisadmin/cadi?ancode=QCD-10-013; http://cds.cern.ch/record/1280684/files/QCD-10-013-pas.pdf; http://cds.cern.ch/record/1280684/files/Figure_002-d.pdf; http://cds.cern.ch/record/1280684/files/Figure_003.pdf; http://cds.cern.ch/record/1280684/files/Figure_004-a.pdf; http://cds.cern.ch/record/1280684/files/Figure_004-b.pdf; http://cds.cern.ch/record/1280684/files/Figure_002-a.pdf; http://cds.cern.ch/record/1280684/files/Figure_002-b.pdf; http://cds.cern.ch/record/1280684/files/Figure_002-c.pdf; http://cds.cern.ch/record/1280684/files/Figure_005-c.pdf; http://cds.cern.ch/record/1280684/files/Figure_005-b.pdf; http://cds.cern.ch/record/1280684/files/Figure_005-a.pdf; http://cds.cern.ch/record/1280684/files/Figure_001-d.pdf; http://cds.cern.ch/record/1280684/files/Figure_001-c.pdf; http://cds.cern.ch/record/1280684/files/Figure_001-b.pdf; http://cds.cern.ch/record/1280684/files/Figure_001-a.pdf; http://cds.cern.ch/record/1280684/files/Figure_005-d.pdf; http://cds.cern.ch/record/1280684/files/Figure_002-d.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_003.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_004-a.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_004-b.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_002-a.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_002-b.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_002-c.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_005-c.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_005-b.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_005-a.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_001-d.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_001-c.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_001-b.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_001-a.png?subformat=icon; http://cds.cern.ch/record/1280684/files/Figure_005-d.png?subformat=icon;

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