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CERN Accelerating science

002162772 001__ 2162772
002162772 005__ 20170524090114.0
002162772 0248_ $$aoai:cds.cern.ch:2162772$$pcerncds:FULLTEXT
002162772 037__ $$aATL-PHYS-SLIDE-2016-354
002162772 041__ $$aeng
002162772 088__ $$9ATL-COM-PHYS-2016-675
002162772 100__ $$0AUTHOR|(SzGeCERN)753701$$0AUTHOR|(INSPIRE)INSPIRE-00452850$$aSchulte, Alexandra$$malexandra.schulte@cern.ch$$uInstitut fuer Physik, Universitaet Mainz
002162772 110__ $$aThe ATLAS collaboration
002162772 245__ $$aMeasurement of the ttZ cross section in the four lepton channel at 13 TeV with ATLAS
002162772 260__ $$c2016
002162772 269__ $$aGeneva$$bCERN$$c21 Jun 2016
002162772 300__ $$a1 p
002162772 520__ $$aThe production of a Z boson together with a top quark pair provides an important test of the standard model and can be used to measure the coupling between a top quark and a Z boson. So far the coupling has not yet directly been measured. A first probe of the coupling is the observation of the associated production of a top quark pair and a Z boson. The ttZ cross section has already been measured by ATLAS and CMS at 8 TeV. This poster shows the first results at 13 TeV in the four lepton channel. The current measurement with 3.2 fb-1 reaches about the same sensitivity as the 8 TeV one, at an increase of the ttZ cross section of about four. The four lepton channel is characterized by very pure signal regions but still limited by large statistical uncertainties.​
002162772 594__ $$aSLIDE
002162772 595__ $$aCERN CDS-Invenio WebSubmit
002162772 6531_ $$9CERN$$aTop properties
002162772 6531_ $$9CERN$$attZ
002162772 6531_ $$9CERN$$across section
002162772 6531_ $$9CERN$$aTOP
002162772 65017 $$2SzGeCERN$$aParticle Physics - Experiment
002162772 65027 $$2SzGeCERN$$aPhysics
002162772 690C_ $$aCERN
002162772 690C_ $$aINTNOTE
002162772 690C_ $$aPRIVATLAS
002162772 690C_ $$aPUBLATLASSLIDE
002162772 693__ $$aCERN LHC$$eATLAS
002162772 710__ $$5PH-EP
002162772 710__ $$gATLAS Collaboration
002162772 859__ $$falexandra.schulte@cern.ch
002162772 8564_ $$uhttps://cds.cern.ch/record/2157692$$yOriginal Communication (restricted to ATLAS)
002162772 8564_ $$81197804$$s3086203$$uhttps://cds.cern.ch/record/2162772/files/ATL-PHYS-SLIDE-2016-354.pdf
002162772 916__ $$sn$$w201670
002162772 960__ $$a91
002162772 963__ $$aPUBLIC
002162772 962__ $$b2010942$$nlund20160613
002162772 970__ $$a000749454CER
002162772 980__ $$aPUBLATLASSLIDE
002162772 980__ $$aSlides