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T: Fachverband Teilchenphysik

T 70: Kalorimeter II

T 70.6: Talk

Wednesday, March 2, 2016, 18:00–18:15, VMP6 HS E

Energy Corrections from Dijet balance at CMS at 13TeV — •Nataliia Kovalchuk, Marc Stoever, Hartmut Stadie, and Peter Schleper — Universität Hamburg, Institut für Experimentalphysik (Hamburg)

This contribution describes the jet energy correction used by the CMS experiment at the Large Hadron Collider (LHC). Due to colour-confinement, high-energy quarks and gluons emerging from hard interactions undergo hadronisation and lead to the formation of hadronic jets. In order to use hadron jets as probe of a hard process, it is crucial to measure precisely the jet energy. A factorised approach is used to correct reconstructed jets for detector effects. In particular the pseudorapidity dependence of the jet energy response is removed. This study uses pp collision data at center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 2.11/fb.