#ifndef ANALYSIS_SKELETON_H
 #define ANALYSIS_SKELETON_H
 /////////////////////////////////////////////////////////////////////////////////////////////////////
 /// Name    : AnalysisSkeleton.h
 /// Package : offline/PhysicsAnalysis/AnalysisCommon/UserAnalysis
 /// Author  : Ketevi A. Assamagan
 /// Created : July 2004
 ///
 /// DESCRIPTION:
 ///
 /// This class is an analysis skeleton - The user can implement his analysis here
 /// This class is also used for the demonstration of the distributed analysis
 /// Some electron histograms are used for the distributed case. The user may
 /// remove the histograms and the electron stuff if not needed.
 /// Note: the single algorithm structure as an analysis code does not scale
 /// For detailed analysis examples, look in CVS: PhysicsAnalysis/AnalysisCommon/AnalysisExamples/
 /// Ketevi A. Assamagan on June 9, 2004
 ///
 ///////////////////////////////////////////////////////////////////////////////////////////////////////
 
 #include "GaudiKernel/ToolHandle.h"
 #include "GaudiKernel/Algorithm.h"
 #include "GaudiKernel/ObjectVector.h"
 #include "CLHEP/Units/SystemOfUnits.h"
 #include "StoreGate/StoreGateSvc.h"
 #include "GaudiKernel/ITHistSvc.h"
 
 #include "AnalysisTools/AnalysisTools.h"
 
 #include "UserAnalysisUtils/UserAnalysisSelectionTool.h"
 #include "UserAnalysisUtils/UserAnalysisPreparationTool.h"
 #include "UserAnalysisUtils/UserAnalysisOverlapCheckingTool.h"
 #include "UserAnalysisUtils/UserAnalysisOverlapRemovalTool.h"
 
 #include "TrigDecision/TrigDecisionTool.h"
 
 //#include "TLorentzVector.h"
 //#include "CLHEP/Vector/LorentzVector.h"
 
 #include "CBNT_Utils/CBNT_AthenaAwareBase.h"
 
 #include <string>
 
 #include "TH1.h"
 
 class JetCollection;
 
 class AnalysisSkeleton : public CBNT_AthenaAwareBase  {
 
  public:
 
    AnalysisSkeleton(const std::string& name, ISvcLocator* pSvcLocator);
    ~AnalysisSkeleton();
 
    virtual StatusCode CBNT_initializeBeforeEventLoop();
    virtual StatusCode CBNT_initialize();
    virtual StatusCode CBNT_finalize();
    virtual StatusCode CBNT_execute();
    virtual StatusCode CBNT_clear();
 
  private:
 
    /** methods called by CBNT_execute() */
    StatusCode electronSkeleton();
    StatusCode triggerSkeleton();
 
    /** an example of pre-selection, overlap-checking and overlap removal */
    StatusCode analysisPreparation();
 
    /** look at b-jet tagging information */
    StatusCode bjetInfo();
 
    /** get quark flavour of jets */
    int getQuarkJetFlavour(JetCollection::const_iterator jetItr);
 
    /** get missing ET information */
    StatusCode getMissingET();
 
    /** make plots for SUSY studies */
    StatusCode SusyStudies();
 
    /** get pT of top quarks */
    StatusCode getTopQpT(int &, double&, double&);
 
  private:
 
    /** get a handle to the tool helper */
    ToolHandle<AnalysisTools> m_analysisTools;
 
    /** get a handle on the user tool for pre-selection and overlap removal */
    ToolHandle<UserAnalysisSelectionTool>       m_analysisSelectionTool;
    ToolHandle<UserAnalysisPreparationTool>     m_analysisPreparationTool;
    ToolHandle<UserAnalysisOverlapCheckingTool> m_analysisOverlapCheckingTool;
    ToolHandle<UserAnalysisOverlapRemovalTool>  m_analysisOverlapRemovalTool;
 
    /** tool to access the trigger decision */
    ToolHandle<TrigDec::TrigDecisionTool> m_trigDec;
 
    /** a handle on the Hist/TTree registration service */
    ITHistSvc * m_thistSvc;
 
    /** a handle on Store Gate for access to the Event Store */
    StoreGateSvc* m_storeGate;
 
    /** the key of the Electron Container to retrieve from the AOD */
    std::string m_electronContainerName; 
 
    /** name of the AOD truth particle container to retrieve from StoreGate */
    std::string m_truthParticleContainerName;
 
    /** key to get missing ET information */
    std::string m_missingETObjectName;
 
    /// The missing ET object
    const MissingET * m_pMissing;
    double m_pxMiss;
    double m_pyMiss;
    double m_ptMiss;   
 
    /** additional user cuts after pre-selections */ 
  
    double m_deltaRMatchCut;
    double m_maxDeltaR;
 
    /** electron specific cuts */
    double m_etElecCut;
    double m_elecCone;
    double m_etaElecCut;
 
    /** bjet specific cuts */
    double m_bjetWt_ip3dsv1Cut;
    double m_bjet_etaCut;
    double m_bjet_etCut;
 
    /** missing ET cuts */
    double m_missingETCut;
 
    /** Atlfast data? */
    bool m_isAtlFastData;
 
    /** min Jet ET cut for SUSY studies */
    double m_SusyJetMinEt;
    
   /** Histograms */
   TH1F* m_h_elecpt;
   TH1F* m_h_eleceta;
   TH1F* m_h_elec_deltaRMatch;
 
   TH1F* m_h_jet_eta_beforeOR;
   TH1F* m_h_jet_et_beforeOR;
   TH1F* m_h_jet_ip3dsv1Wt_beforeOR;
   TH1F* m_h_jet_label_beforeOR;
   TH1F* m_h_jet_ip3dsv1Wt_bjet_beforeOR;
   TH1F* m_h_jet_ip3dsv1Wt_ujet_beforeOR;
 
   TH1F* m_h_jet_eta_afterOR;
   TH1F* m_h_jet_et_afterOR;
   TH1F* m_h_jet_ip3dsv1Wt_afterOR;
   TH1F* m_h_jet_label_afterOR;
   TH1F* m_h_jet_ip3dsv1Wt_bjet_afterOR;
   TH1F* m_h_jet_ip3dsv1Wt_ujet_afterOR;
 
   TH1F* m_pxMis;
   TH1F* m_pyMis;
   TH1F* m_ptMis;
 
   /** Athena-Aware Ntuple (AAN) variables - branches of the AAN TTree */
 
   /** Simple variables by Ketevi */
   int m_aan_size;
   std::vector<double> * m_aan_eta;
   std::vector<double> * m_aan_pt;
   std::vector<double> * m_aan_elecetres;
 
   /** Variables by VJ */
   double m_aan_ptMiss;
   int    m_aan_njets;
   int    m_aan_njets_etaLT25;
   int    m_aan_njets_SusyETCut;
   double m_aan_effmass;
   double m_aan_ht;
   double m_aan_maxJetET;
   int    m_aan_nbjets;
 
   std::vector<double>* m_aan_JetEta;
   std::vector<double>* m_aan_JetEt;
   std::vector<double>* m_aan_JetBTagWt;
 
   /** Look at final electrons/muons */
   int m_aan_NFinalEl;
   int m_aan_NFinalMu;
 
   std::vector<double>* m_aan_FinalElEta;
   std::vector<double>* m_aan_FinalElPt;
   std::vector<double>* m_aan_FinalElEtCone20;
   std::vector<double>* m_aan_FinalElPtrat;
 
   std::vector<double>* m_aan_FinalMuEta;
   std::vector<double>* m_aan_FinalMuPt;
   std::vector<double>* m_aan_FinalMuEtCone20;
   std::vector<int>*    m_aan_FinalMuBestMat;
   std::vector<double>* m_aan_FinalMuMatChi2;
 
   double m_aan_FinalLepEtSum;
   double m_aan_FinalElEtSum;
   double m_aan_FinalMuEtSum;
 
   /** number top quarks */
 
   int m_aan_NumTopQ;
   double m_aan_pTtop1;
   double m_aan_pTtop2;
 
   bool m_doTrigger;
 };
 
 #endif // ANALYSIS_SKELETON_H
 

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