CERN Accelerating science

ATLAS Note
Report number	ATL-PHYS-PUB-2009-083
Title	Data-Driven Determination of $t\overline{t}$ Background to Supersymmetry Searches in ATLAS
Corporate Author(s)	The ATLAS Collaboration
Publication	2009
Imprint	14 Jul 2009
Number of pages	12
Note	All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PUBNOTES/ATL-PHYS-PUB-2009-083
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	SUSY
Abstract	The Standard Model process of ttbar production is one of the most important backgrounds to searches for Supersymmetry (SUSY) at the Large Hadron Collider (LHC) at CERN. We describe a new method to estimate the contribution of tt->bblnqq events in SUSY searches with large missing transverse energy, multi-jets and veto against leptons with the first 200 pb^{-1} data of the ATLAS experiment. The performances of this method are evaluated with 10 TeV simulated data.
Scientific contact person	Zhuravlov, V, ([email protected])
Copyright/License	Preprint: (License: CC-BY-4.0)

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