measurement of the ratio of the w and z cross sections with exactly one associated jet in pp collisions at s=7 tev with atlas论文

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1、燃唧MeasurementoftheratiooftheWandZcrosssect—ionswithexactlyoneassociatedjetinPPcollisionsat、／s=7TeVwithATLASbyChaoXUToobtainthedegreeofDoctorofUniversityofScienceandTechnologyofChinaUniversityofParisSud1Orsay(Particle，Noyaux，Cosmos(ED517))(DoctorateofPhilosophy·ParticlePhysics)Thesisprepar

2、edatIRFU／SPP／CEA-SaclayandUniversityofScienceandTechnologyofChinaDirectedby：Dr．LanconEricPr．ZhengguoZhaoDefendonJune5th2012ListofJuryPr．XiaoyanShen(ChairPerson)Pr．XueyaoZhangPr．YanwenLiuPr．SheniianChenPr．EtienneAu96Pr．Pierre．HuguesBeaucheminContentsAcknowledgementAbstractR6sum61Introducti

3、on2TheStandardModelofParticlePhysics2．1TheStandardModelofParticlePhysics．．．．．．．．．。．．．．．．．．2．1．1ElementaryparticlesofStandardModel．．．．．．．．．．．．．．2．1．2FieldCont’entofStandardModel．．．．．．．．．．．．．．．．．．2．2Productionofw／zbosonassociatedwithjetsatLHC．．．．．．．．．．3LHCandATLASExperiment3．1Introductionof

4、LargeHadronCollider．．．．．．．．．．．．．．．．．．．3．2IntroductiontotheATLASExperiment．．．．．．．．．．．．．．．．．．3．2．1OverviewofATLASDetector．．．．．．．．．．．．．．．．．．．3．2．2InnerDetector．．．．．．．．．．．．．．．．．．．．．．．．．．．3．2．3Calorimetry．．．．．．．．．．．．．．．．．．．．．．．．．．．．．3．2．4MuonSystem．．．．．．．．．．．．．．．．．．．．．．．．．．．．4TriggerandDataAcq

5、uisitionsystem4．1OverviewofATLAStriggersystem．．．．．．．．．．．．．．．．．．．．4．2L1Trigger．．．．．．．．．．．．．．．．．．．．．．．·．·········4．3HLTTrigger／DAQ．．．．．．．．．．．．．．．．．．．．．．．········5ObjectReconstructionatATLAS5．1Muon．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．5．2Jets．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．5．3印惦8．．．．．．．．．

6、．．．．．．．．·．·················6局咖measurement6．1Introductionof弓ets．．．．．．．．．．．．．．．．．．．．．．．．一．．6．1．1Motivationofmeasurementof局ets．．．．．．．．．．．．一．．6．1．2Definitionofthe马e拈measurement．．．．．．．．．．．．．．．．6．1．3Analysisstrategy．．．．．．．．．．．．．．．．．．．．．．．．．．v．一试2457m加m他轮H侈笱筋拍卯猡凹”驺弘弭舛弱拍6．2DataandMonteCarloSample

7、s．．．．．．．．．，．．．．．．．·-····6．3EventSelection．．．．．．．．．．．．．．．．．．．．．．．．··-····6．4CorrectionofR记ts．．．．．．．．．．．．．．．．．．．．．．·······6．4。lElectroweakBackgroundestimation．．。．．．。．．．．．．．．。6．4．2QCDBackgroundestimation．．．．．．．．．．．．．．．．．．．．6．4．3MuonTrigger．．．．．．．．．．．．．．．．．．．．．．．。．．。．6．