CERN Accelerating science

ATLAS Note
Report number	ATLAS-CONF-2015-029
Title	Selection of jets produced in 13TeV proton-proton collisions with the ATLAS detector
Corporate Author(s)	The ATLAS collaboration
Publication	2015
Imprint	25 Jul 2015
Number of pages	mult.
Note	All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2015-029
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	Jet cleaning ; Jet selection efficiency
Abstract	Quality criteria for the selection of reconstructed anti-$k_t$ jets with $R = 0.4$ in the ATLAS detector are described. The study is based on data recorded in June 2015 by the ATLAS experiment in $\sqrt{s}$ = 13 TeV protonâproton collisions at the Large Hadron Collider, with a total integrated luminosity of 6.4 pb$^{−1}$. Two selection criteria are introduced. The Loose selection is designed to provide an efficiency of selecting jets from proton-proton collisions above 99.5% (99.9%) for $p_T>$ 20 (100) GeV to be used in most ATLAS physics analyses. A tighter set of selection cuts, called Tight, is designed to further reject background jets for analyses sensitive to non-collision backgrounds with an efficiency of selecting jets from proton-proton collisions above 95% (99.5%) for $p_T>$ 20 (100) GeV.
Copyright/License	Preprint: (License: CC-BY-4.0)

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