#include <MCElectronAnalyzer.h>

Inheritance diagram for MCElectronAnalyzer:

Public Member Functions
virtual void	analyze (const edm::Event &, const edm::EventSetup &)
virtual void	beginJob ()
virtual void	endJob ()
	MCElectronAnalyzer (const edm::ParameterSet &)
virtual	~MCElectronAnalyzer ()
Private Member Functions
float	etaTransformation (float a, float b)
float	phiNormalization (float &a)
Private Attributes
TFile *	fOutputFile_
std::string	fOutputFileName_
TH1F *	h_BremEnergy_
TH1F *	h_BremFrac_
TH1F *	h_MCEleE_
TH1F *	h_MCEleEta_
TH1F *	h_MCElePhi_
std::string	HepMCLabel
double	mcEta_
double	mcPhi_
	global variable for the MC photon
int	nEvt_
int	nMatched_
TProfile *	p_BremVsEta_
TProfile *	p_BremVsR_
std::string	SimHitLabel
std::string	SimTkLabel
std::string	SimVtxLabel
ElectronMCTruthFinder *	theElectronMCTruthFinder_
const TrackerGeometry *	trackerGeom

Detailed Description

Definition at line 23 of file MCElectronAnalyzer.h.

Constructor & Destructor Documentation

MCElectronAnalyzer::MCElectronAnalyzer ( const edm::ParameterSet & pset ) [explicit]

Definition at line 44 of file MCElectronAnalyzer.cc.

   : fOutputFileName_( pset.getUntrackedParameter<string>("HistOutFile",std::string("TestConversions.root")) ),
     fOutputFile_(0)
{


}

MCElectronAnalyzer::~MCElectronAnalyzer ( ) [virtual]

Definition at line 54 of file MCElectronAnalyzer.cc.

References theElectronMCTruthFinder_.

                                        {


  delete theElectronMCTruthFinder_;

}

Member Function Documentation

void MCElectronAnalyzer::analyze	(	const edm::Event &	e,
		const edm::EventSetup &
	)		`[virtual]`

Implements edm::EDAnalyzer.

Definition at line 144 of file MCElectronAnalyzer.cc.

References gather_cfg::cout, ElectronMCTruthFinder::find(), edm::Event::getByLabel(), h_BremEnergy_, h_BremFrac_, h_MCEleE_, h_MCEleEta_, h_MCElePhi_, edm::EventBase::id(), nEvt_, p_BremVsEta_, p_BremVsR_, and theElectronMCTruthFinder_.

{


  using namespace edm;
  //const float etaPhiDistance=0.01;
  // Fiducial region
  //const float TRK_BARL =0.9;
  //const float BARL = 1.4442; // DAQ TDR p.290
  //const float END_LO = 1.566;
  //const float END_HI = 2.5;
  // Electron mass
  //const Float_t mElec= 0.000511;


  nEvt_++;
  LogInfo("MCElectronAnalyzer") << "MCElectronAnalyzer Analyzing event number: " << e.id() << " Global Counter " << nEvt_ <<"\n";
  //  LogDebug("MCElectronAnalyzer") << "MCElectronAnalyzer Analyzing event number: "  << e.id() << " Global Counter " << nEvt_ <<"\n";
  std::cout << "MCElectronAnalyzer Analyzing event number: "  << e.id() << " Global Counter " << nEvt_ <<"\n";

  std::cout  << " MCElectronAnalyzer Looking for MC truth " << "\n";

  //get simtrack info
  std::vector<SimTrack> theSimTracks;
  std::vector<SimVertex> theSimVertices;

  edm::Handle<SimTrackContainer> SimTk;
  edm::Handle<SimVertexContainer> SimVtx;
  e.getByLabel("g4SimHits",SimTk);
  e.getByLabel("g4SimHits",SimVtx);

  theSimTracks.insert(theSimTracks.end(),SimTk->begin(),SimTk->end());
  theSimVertices.insert(theSimVertices.end(),SimVtx->begin(),SimVtx->end());
  std::cout << " MCElectronAnalyzer This Event has " <<  theSimTracks.size() << " sim tracks " << std::endl;
  std::cout << " MCElectronAnalyzer This Event has " <<  theSimVertices.size() << " sim vertices " << std::endl;
  if (  ! theSimTracks.size() ) std::cout << " Event number " << e.id() << " has NO sim tracks " << std::endl;


  std::vector<ElectronMCTruth> MCElectronctrons=theElectronMCTruthFinder_->find (theSimTracks,  theSimVertices);
  std::cout << " MCElectronAnalyzer MCElectronctrons size " <<  MCElectronctrons.size() << std::endl;

  for ( std::vector<ElectronMCTruth>::const_iterator iEl=MCElectronctrons.begin(); iEl !=MCElectronctrons.end(); ++iEl ){

    h_MCEleE_->Fill  ( (*iEl).fourMomentum().e() );
    h_MCEleEta_->Fill  ( (*iEl).fourMomentum().pseudoRapidity() );
    h_MCElePhi_->Fill  ( (*iEl).fourMomentum().phi() );

    float totBrem=0 ;
    unsigned int iBrem ;
    for ( iBrem=0; iBrem < (*iEl).bremVertices().size(); ++iBrem ) {
      float rBrem= (*iEl).bremVertices()[iBrem].perp();
      float etaBrem= (*iEl).bremVertices()[iBrem].eta();
      if ( rBrem < 120 ) {
        totBrem +=  (*iEl).bremMomentum()[iBrem].e();
        p_BremVsR_ ->Fill ( rBrem, (*iEl).bremMomentum()[iBrem].e() );
        p_BremVsEta_ ->Fill ( etaBrem, (*iEl).bremMomentum()[iBrem].e() );

      }
    }


    h_BremFrac_->Fill( totBrem/(*iEl).fourMomentum().e() );
    h_BremEnergy_->Fill (  totBrem  );




  }




}

void MCElectronAnalyzer::beginJob ( void ) [virtual]

Reimplemented from edm::EDAnalyzer.

Definition at line 62 of file MCElectronAnalyzer.cc.

References fOutputFile_, fOutputFileName_, h_BremEnergy_, h_BremFrac_, h_MCEleE_, h_MCEleEta_, h_MCElePhi_, nEvt_, p_BremVsEta_, p_BremVsR_, and theElectronMCTruthFinder_.

{


  nEvt_=0;

  theElectronMCTruthFinder_ = new ElectronMCTruthFinder();


  fOutputFile_   = new TFile( fOutputFileName_.c_str(), "RECREATE" ) ;

  h_MCEleE_ = new TH1F("MCEleE","MC ele energy",100,0.,200.);
  h_MCElePhi_ = new TH1F("MCElePhi","MC ele phi",40,-3.14, 3.14);
  h_MCEleEta_ = new TH1F("MCEleEta","MC ele eta",40,-3., 3.);
  h_BremFrac_ = new TH1F("bremFrac","brem frac ", 100, 0., 1.);
  h_BremEnergy_ = new TH1F("BremE","Brem energy",100,0.,200.);

  p_BremVsR_ = new TProfile("BremVsR", " Mean Brem energy vs R ", 48, 0., 120.);
  p_BremVsEta_ = new TProfile("BremVsEta", " Mean Brem energy vs Eta ", 50, -2.5, 2.5);




  return ;
}

void MCElectronAnalyzer::endJob ( void ) [virtual]

Reimplemented from edm::EDAnalyzer.

Definition at line 222 of file MCElectronAnalyzer.cc.

References gather_cfg::cout, fOutputFile_, and nEvt_.

{




   fOutputFile_->Write() ;
   fOutputFile_->Close() ;

   edm::LogInfo("MCElectronAnalyzer") << "Analyzed " << nEvt_  << "\n";
   std::cout  << "MCElectronAnalyzer::endJob Analyzed " << nEvt_ << " events " << "\n";

   return ;
}

float MCElectronAnalyzer::etaTransformation	(	float	a,
		float	b
	)		`[private]`

Definition at line 90 of file MCElectronAnalyzer.cc.

References abs, ETA, etaBarrelEndcap, funct::log(), PI, R_ECAL, funct::tan(), and Z_Endcap.

                                                                                {

//---Definitions
        const float PI    = 3.1415927;
        //const float TWOPI = 2.0*PI;

//---Definitions for ECAL
        const float R_ECAL           = 136.5;
        const float Z_Endcap         = 328.0;
        const float etaBarrelEndcap  = 1.479;

//---ETA correction

        float Theta = 0.0  ;
        float ZEcal = R_ECAL*sinh(EtaParticle)+Zvertex;

        if(ZEcal != 0.0) Theta = atan(R_ECAL/ZEcal);
        if(Theta<0.0) Theta = Theta+PI ;
        float ETA = - log(tan(0.5*Theta));

        if( std::abs(ETA) > etaBarrelEndcap )
          {
           float Zend = Z_Endcap ;
           if(EtaParticle<0.0 )  Zend = -Zend ;
           float Zlen = Zend - Zvertex ;
           float RR = Zlen/sinh(EtaParticle);
           Theta = atan(RR/Zend);
           if(Theta<0.0) Theta = Theta+PI ;
           ETA = - log(tan(0.5*Theta));
          }
//---Return the result
        return ETA;
//---end
}

float MCElectronAnalyzer::phiNormalization ( float & a ) [private]

Definition at line 125 of file MCElectronAnalyzer.cc.

References phi, PI, and TWOPI.

{
//---Definitions
 const float PI    = 3.1415927;
 const float TWOPI = 2.0*PI;


 if(phi >  PI) {phi = phi - TWOPI;}
 if(phi < -PI) {phi = phi + TWOPI;}

 //  cout << " Float_t PHInormalization out " << PHI << endl;
 return phi;

}