/data/refman/pasoursint/CMSSW_5_3_1/src/DQMOffline/Muon/src/EfficiencyAnalyzer.cc

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/* This Class Header */
#include "DQMOffline/Muon/src/EfficiencyAnalyzer.h"

/* Collaborating Class Header */
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Utilities/interface/Exception.h"
#include "DataFormats/MuonReco/interface/Muon.h"
#include "DataFormats/MuonReco/interface/MuonFwd.h" 
#include "DataFormats/BeamSpot/interface/BeamSpot.h"
#include "DataFormats/Math/interface/deltaR.h"

using namespace edm;

#include "TLorentzVector.h"
#include "TFile.h"
#include <vector>
#include "math.h"


#include "TrackingTools/TransientTrack/interface/TransientTrack.h"
#include "RecoMuon/TrackingTools/interface/MuonPatternRecoDumper.h"


#include "DataFormats/TrajectorySeed/interface/TrajectorySeedCollection.h"
#include "DataFormats/TrackReco/interface/Track.h"

/* C++ Headers */
#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
using namespace edm;

EfficiencyAnalyzer::EfficiencyAnalyzer(const edm::ParameterSet& pSet, MuonServiceProxy *theService):MuonAnalyzerBase(theService){ 
  parameters = pSet;
}

EfficiencyAnalyzer::~EfficiencyAnalyzer() { }

void EfficiencyAnalyzer::beginJob(DQMStore * dbe) {
#ifdef DEBUG
  cout << "[EfficiencyAnalyzer] Parameters initialization" <<endl;
#endif
  metname = "EfficiencyAnalyzer";
  LogTrace(metname)<<"[EfficiencyAnalyzer] Parameters initialization";
  dbe->setCurrentFolder("Muons/EfficiencyAnalyzer");  
  
  theMuonCollectionLabel = parameters.getParameter<edm::InputTag>("MuonCollection");
  theTrackCollectionLabel = parameters.getParameter<edm::InputTag>("TrackCollection");


  ptBin_ = parameters.getParameter<int>("ptBin");
  ptMin_ = parameters.getParameter<double>("ptMin");
  ptMax_ = parameters.getParameter<double>("ptMax");

  etaBin_ = parameters.getParameter<int>("etaBin");
  etaMin_ = parameters.getParameter<double>("etaMin");
  etaMax_ = parameters.getParameter<double>("etaMax");

  phiBin_ = parameters.getParameter<int>("phiBin");
  phiMin_ = parameters.getParameter<double>("phiMin");
  phiMax_ = parameters.getParameter<double>("phiMax");



  test_TightMu_Minv  = dbe->book1D("test_TightMu_Minv"  ,"Minv",50,70,110);

  h_allProbes_pt = dbe->book1D("allProbes_pt","All Probes Pt", ptBin_, ptMin_, ptMax_);
  h_allProbes_barrel_pt = dbe->book1D("allProbes_barrel_pt","Barrel: all Probes Pt", ptBin_, ptMin_, ptMax_);
  h_allProbes_endcap_pt = dbe->book1D("allProbes_endcap_pt","Endcap: all Probes Pt", ptBin_, ptMin_, ptMax_);
  h_allProbes_eta = dbe->book1D("allProbes_eta","All Probes Eta", etaBin_, etaMin_, etaMax_);
  h_allProbes_hp_eta = dbe->book1D("allProbes_hp_eta","High Pt all Probes Eta", etaBin_, etaMin_, etaMax_);
  h_allProbes_phi = dbe->book1D("allProbes_phi","All Probes Phi", phiBin_, phiMin_, phiMax_);

  h_passProbes_TightMu_pt = dbe->book1D("passProbes_TightMu_pt","TightMu Passing Probes Pt", ptBin_ , ptMin_ , ptMax_ );
 h_passProbes_TightMu_barrel_pt = dbe->book1D("passProbes_TightMu_barrel_pt","Barrel: TightMu Passing Probes Pt", ptBin_ , ptMin_ , ptMax_ );
 h_passProbes_TightMu_endcap_pt = dbe->book1D("passProbes_TightMu_endcap_pt","Endcap: TightMu Passing Probes Pt", ptBin_ , ptMin_ , ptMax_ );
  h_passProbes_TightMu_eta = dbe->book1D("passProbes_TightMu_eta","TightMu Passing Probes #eta", etaBin_, etaMin_, etaMax_);
  h_passProbes_TightMu_hp_eta = dbe->book1D("passProbes_TightMu_hp_eta","High Pt TightMu Passing Probes #eta", etaBin_, etaMin_, etaMax_);
  h_passProbes_TightMu_phi = dbe->book1D("passProbes_TightMu_phi","TightMu Passing Probes #phi", phiBin_, phiMin_, phiMax_);



  /*h_failProbes_TightMu_pt = dbe->book1D("failProbes_TightMu_pt","TightMu Failling Probes Pt", ptBin_ , ptMin_ , ptMax_ );
  h_failProbes_TightMu_eta = dbe->book1D("failProbes_TightMu_eta","TightMu Failling Probes #eta", etaBin_, etaMin_, etaMax_);
  h_failProbes_TightMu_phi = dbe->book1D("failProbes_TightMu_phi","TightMu Failling Probes #phi", phiBin_, phiMin_, phiMax_);
  */

#ifdef DEBUG
  cout << "[EfficiencyAnalyzer] Parameters initialization DONE" <<endl;
#endif
}

void EfficiencyAnalyzer::analyze(const edm::Event & iEvent,const edm::EventSetup& iSetup) {

  LogTrace(metname)<<"[EfficiencyAnalyzer] Analyze the mu in different eta regions";
  
  edm::Handle<reco::MuonCollection> muons;
  iEvent.getByLabel(theMuonCollectionLabel, muons);


  edm::Handle<reco::TrackCollection> tracks;
  iEvent.getByLabel(theTrackCollectionLabel,tracks); 


  reco::BeamSpot beamSpot;
  Handle<reco::BeamSpot> beamSpotHandle;
  iEvent.getByLabel("offlineBeamSpot", beamSpotHandle);
  beamSpot = *beamSpotHandle;

  if(!muons.isValid()) return;


  // Loop on muon collection
  TLorentzVector Mu1, Mu2;

  bool isMB = false;
  bool isME = false;

  for (reco::MuonCollection::const_iterator recoMu1 = muons->begin(); recoMu1!=muons->end(); ++recoMu1) {

    LogTrace(metname)<<"[EfficiencyAnalyzer] loop over first muons" << endl;

    //--- Define combined isolation
    reco::MuonIsolation Iso_muon = recoMu1->isolationR03();
    float combIso = (Iso_muon.emEt + Iso_muon.hadEt + Iso_muon.sumPt);  
    
    //--- Is Global Muon 
    if (!recoMu1->isGlobalMuon()) continue;

      // get the track combinig the information from both the Tracker and the Spectrometer
      reco::TrackRef recoCombinedGlbTrack1 = recoMu1->combinedMuon();    
      float muPt1 = recoCombinedGlbTrack1->pt();
      Mu1.SetPxPyPzE(recoCombinedGlbTrack1->px(), recoCombinedGlbTrack1->py(),recoCombinedGlbTrack1->pz(), recoCombinedGlbTrack1->p());
      

      //--- Define if it is a tight muon
      if (recoMu1->isGlobalMuon() && recoMu1->isTrackerMuon() && recoMu1->combinedMuon()->normalizedChi2()<10. 
          && recoMu1->combinedMuon()->hitPattern().numberOfValidMuonHits()>0 && fabs(recoMu1->combinedMuon()->dxy(beamSpot.position()))<0.2 && recoMu1->combinedMuon()->hitPattern().numberOfValidPixelHits()>0 && recoMu1->numberOfMatches() > 1) {

        //-- is isolated muon
        if (muPt1 > 15  && (combIso/muPt1) < 0.1 ) {


          for (reco::MuonCollection::const_iterator recoMu2 = muons->begin(); recoMu2!=muons->end(); ++recoMu2){ 
          
            LogTrace(metname)<<"[EfficiencyAnalyzer] loop over second muon" <<endl;
          
            if (recoMu2 == recoMu1) continue;

            
            if (recoMu2->eta() < 1.479 )  isMB = true;
            if (recoMu2->eta() >= 1.479 ) isME = true;


            //--> should we apply track quality cuts??? 
            Mu2.SetPxPyPzE(recoMu2->px(), recoMu2->py(), recoMu2->pz(), recoMu2->p());

            if (!recoMu2->isTrackerMuon()) continue;

            if ( recoMu2->pt() < 5 ) continue;

            if ( (recoMu1->charge())*(recoMu2->charge()) > 0 ) continue; 

            float Minv = (Mu1+Mu2).M();
            
            if ( Minv < 70 ||  Minv > 110 ) continue; 

            h_allProbes_pt->Fill(recoMu2->pt());
            h_allProbes_eta->Fill(recoMu2->eta());
            h_allProbes_phi->Fill(recoMu2->phi());


            if (isMB) h_allProbes_barrel_pt->Fill(recoMu2->pt());
            if (isME) h_allProbes_endcap_pt->Fill(recoMu2->pt());
            if(recoMu2->pt() > 20 ) h_allProbes_hp_eta->Fill(recoMu2->eta());


            test_TightMu_Minv->Fill(Minv);

         
            // Probes passing the tight muon criteria 

            if (recoMu2->isGlobalMuon() && recoMu2->isTrackerMuon() && recoMu2->combinedMuon()->normalizedChi2()<10. && recoMu2->combinedMuon()->hitPattern().numberOfValidMuonHits()>0 && fabs(recoMu2->combinedMuon()->dxy(beamSpot.position()))<0.2 && recoMu2->combinedMuon()->hitPattern().numberOfValidPixelHits()>0 && recoMu2->numberOfMatches() > 1) { 
                 
                 h_passProbes_TightMu_pt->Fill(recoMu2->pt());
                 h_passProbes_TightMu_eta->Fill(recoMu2->eta());
                 h_passProbes_TightMu_phi->Fill(recoMu2->phi());

                 if (isMB) h_passProbes_TightMu_barrel_pt->Fill(recoMu2->pt());
                 if (isME) h_passProbes_TightMu_endcap_pt->Fill(recoMu2->pt());
                 if( recoMu2->pt() > 20 ) h_passProbes_TightMu_hp_eta->Fill(recoMu2->eta());
       
            }
          }
              
        }
      }
  }
}