#include <EMShower.h>

Public Member Functions
void	compute ()
	Compute the shower longitudinal and lateral development.
	EMShower (const RandomEngine engine, GammaFunctionGenerator gamma, EMECALShowerParametrization const myParam, std::vector< const RawParticle > const myPart, DQMStore const dbeIn=NULL, EcalHitMaker const myGrid=NULL, PreshowerHitMaker const myPreshower=NULL, bool bFixedLength=false)
double	getMaximumOfShower () const
	get the depth of the centre of gravity of the shower(s)
void	prepareSteps ()
	Computes the steps before the real compute.
void	setGrid (EcalHitMaker *const myGrid)
	set the grid address
void	setHcal (HcalHitMaker *const myHcal)
	set the HCAL address
void	setPreshower (PreshowerHitMaker *const myPresh)
	set the preshower address
virtual	~EMShower ()
Private Types
typedef std::pair< XYZPoint, double >	Spot
typedef std::pair< unsigned int, double >	Step
typedef Steps::const_iterator	step_iterator
typedef std::vector< Step >	Steps
typedef math::XYZVector	XYZPoint
Private Member Functions
double	deposit (double t, double a, double b, double dt)
double	deposit (double a, double b, double t)
double	gam (double x, double a) const
void	setIntervals (unsigned icomp, RadialInterval &rad)
Private Attributes
std::vector< double >	a
std::vector< double >	aSpot
std::vector< double >	b
bool	bFixedLength_
std::vector< double >	bSpot
DQMStore *	dbe
std::vector< std::vector < double > >	depositedEnergy
std::vector< double >	E
std::vector< double >	Etot
double	globalMaximum
bool	hasPreshower
double	innerDepth
std::vector< double >	maximumOfShower
std::vector< double >	meanDepth
GammaFunctionGenerator *	myGammaGenerator
Genfun::IncompleteGamma	myIncompleteGamma
unsigned int	nPart
unsigned	nSteps
double	outerDepth
std::vector< double >	photos
const RandomEngine *	random
Steps	steps
bool	stepsCalculated
std::vector< double >	T
const ECALProperties *	theECAL
EcalHitMaker *	theGrid
const HCALProperties *	theHCAL
HcalHitMaker *	theHcalHitMaker
const PreshowerLayer1Properties *	theLayer1
const PreshowerLayer2Properties *	theLayer2
std::vector< double >	theNumberOfSpots
EMECALShowerParametrization *const	theParam
std::vector< const RawParticle * > *const	thePart
PreshowerHitMaker *	thePreshower
std::vector< double >	Ti
double	totalEnergy
std::vector< double >	TSpot

Detailed Description

Definition at line 28 of file EMShower.h.

Member Typedef Documentation

typedef std::pair<XYZPoint,double> EMShower::Spot [private]

Definition at line 33 of file EMShower.h.

typedef std::pair<unsigned int, double> EMShower::Step [private]

Definition at line 34 of file EMShower.h.

typedef Steps::const_iterator EMShower::step_iterator [private]

Definition at line 36 of file EMShower.h.

typedef std::vector<Step> EMShower::Steps [private]

Definition at line 35 of file EMShower.h.

typedef math::XYZVector EMShower::XYZPoint [private]

Definition at line 31 of file EMShower.h.

Constructor & Destructor Documentation

EMShower::EMShower	(	const RandomEngine *	engine,
		GammaFunctionGenerator *	gamma,
		EMECALShowerParametrization *const	myParam,
		std::vector< const RawParticle * > *const	myPart,
		DQMStore *const	dbeIn = `NULL`,
		EcalHitMaker *const	myGrid = `NULL`,
		PreshowerHitMaker *const	myPreshower = `NULL`,
		bool	bFixedLength = `false`
	)

Definition at line 21 of file EMShower.cc.

  : theParam(myParam), 
    thePart(myPart), 
    theGrid(myGrid),
    thePreshower(myPresh),
    random(engine),
    myGammaGenerator(gamma),
    bFixedLength_(bFixedLength)
{ 

  // Get the Famos Histos pointer
  //  myHistos = Histos::instance();
  //  myGammaGenerator = GammaFunctionGenerator::instance();
  stepsCalculated=false;
  hasPreshower = myPresh!=NULL;
  theECAL = myParam->ecalProperties();
  theHCAL = myParam->hcalProperties();
  theLayer1 = myParam->layer1Properties();
  theLayer2 = myParam->layer2Properties();

  
  double fotos = theECAL->photoStatistics() 
               * theECAL->lightCollectionEfficiency();

  dbe = dbeIn;

  nPart = thePart->size();
  totalEnergy = 0.;
  globalMaximum = 0.;
  double meanDepth=0.;
  // Initialize the shower parameters for each particle

  if (dbe) {
    dbe->cd();             
    if (!dbe->get("EMShower/NumberOfParticles")) {}//std::cout << "NOT FOUND IN Shower.cc" << std::endl;}
        else {
          dbe->get("EMShower/NumberOfParticles")->Fill(nPart);
        }
    }


  for ( unsigned int i=0; i<nPart; ++i ) {
    //    std::cout << " AAA " << *(*thePart)[i] << std::endl;
    // The particle and the shower energy
    Etot.push_back(0.);
    E.push_back(((*thePart)[i])->e());
    totalEnergy+=E[i];
    


    if (dbe) {
        dbe->cd();             
        if (!dbe->get("EMShower/ParticlesEnergy")) {}//std::cout << "NOT FOUND IN Shower.cc" << std::endl;}
        else {
          dbe->get("EMShower/ParticlesEnergy")->Fill(log10(E[i]));
        }
    }







    double lny = std::log ( E[i] / theECAL->criticalEnergy() );

    // Average and Sigma for T and alpha
    double theMeanT        = myParam->meanT(lny);
    double theMeanAlpha    = myParam->meanAlpha(lny);
    double theMeanLnT      = myParam->meanLnT(lny);
    double theMeanLnAlpha  = myParam->meanLnAlpha(lny);
    double theSigmaLnT     = myParam->sigmaLnT(lny);
    double theSigmaLnAlpha = myParam->sigmaLnAlpha(lny);


    // The correlation matrix
    double theCorrelation = myParam->correlationAlphaT(lny);
    double rhop = std::sqrt( (1.+theCorrelation)/2. );
    double rhom = std::sqrt( (1.-theCorrelation)/2. );

    // The number of spots in ECAL / HCAL
    theNumberOfSpots.push_back(myParam->nSpots(E[i]));
    //    theNumberOfSpots.push_back(myParam->nSpots(E[i])*spotFraction);
    //theNumberOfSpots = random->poissonShoot(myParam->nSpots(myPart->e()));

    // Photo-statistics
    photos.push_back(E[i] * fotos);
    
    // The longitudinal shower development parameters
    // Fluctuations of alpha, T and beta
    double z1=0.;
    double z2=0.;
    double aa=0.;

    // Protect against too large fluctuations (a < 1) for small energies
    while ( aa <= 1. ) {
      z1 = random->gaussShoot(0.,1.);
      z2 = random->gaussShoot(0.,1.);
      aa = std::exp(theMeanLnAlpha + theSigmaLnAlpha * (z1*rhop-z2*rhom));
    }

    a.push_back(aa);
    T.push_back(std::exp(theMeanLnT + theSigmaLnT * (z1*rhop+z2*rhom)));
    b.push_back((a[i]-1.)/T[i]);
    maximumOfShower.push_back((a[i]-1.)/b[i]);
    globalMaximum += maximumOfShower[i]*E[i];
    meanDepth += a[i]/b[i]*E[i];
    //    std::cout << " Adding max " << maximumOfShower[i] << " " << E[i] << " " <<maximumOfShower[i]*E[i] << std::endl; 
    //    std::cout << std::setw(8) << std::setprecision(5) << " a /b " << a[i] << " " << b[i] << std::endl;
    Ti.push_back(
                 a[i]/b[i] * (std::exp(theMeanLnAlpha)-1.) / std::exp(theMeanLnAlpha));
  
    // The parameters for the number of energy spots
    TSpot.push_back(theParam->meanTSpot(theMeanT));
    aSpot.push_back(theParam->meanAlphaSpot(theMeanAlpha));
    bSpot.push_back((aSpot[i]-1.)/TSpot[i]);
    //    myHistos->fill("h7000",a[i]);
    //    myHistos->fill("h7002",E[i],a[i]);
  }
//  std::cout << " PS1 : " << myGrid->ps1TotalX0()
//         << " PS2 : " << myGrid->ps2TotalX0()
//         << " ECAL : " << myGrid->ecalTotalX0()
//         << " HCAL : " << myGrid->hcalTotalX0() 
//         << " Offset : " << myGrid->x0DepthOffset()
//         << std::endl;

 globalMaximum/=totalEnergy;
 meanDepth/=totalEnergy;
 // std::cout << " Total Energy " << totalEnergy << " Global max " << globalMaximum << std::endl;
}

virtual EMShower::~EMShower ( ) [inline, virtual]

Definition at line 49 of file EMShower.h.

{;}

Member Function Documentation

void EMShower::compute ( )

Compute the shower longitudinal and lateral development.

Definition at line 305 of file EMShower.cc.

References a, abs, EcalHitMaker::addHit(), HcalHitMaker::addHit(), PreshowerHitMaker::addHit(), EcalHitMaker::addHitDepth(), RadialInterval::addInterval(), aSpot, b, bSpot, DQMStore::cd(), RadialInterval::compute(), ECALProperties::da(), dbe, deposit(), depositedEnergy, ECALProperties::dp(), dt, alignCSCRings::e, E, patCandidatesForDimuonsSequences_cff::ecal, Etot, MonitorElement::Fill(), RandomEngine::flatShoot(), gam(), RandomEngine::gaussShoot(), DQMStore::get(), RadialInterval::getNumberOfSpots(), EcalHitMaker::getPads(), RadialInterval::getSpotEnergy(), RadialInterval::getUmax(), RadialInterval::getUmin(), EcalHitMaker::getX0back(), hasPreshower, patCandidatesForDimuonsSequences_cff::hcal, HCALProperties::hOverPi(), i, ECALProperties::isHom(), ECALProperties::lightCollectionUniformity(), M_PI, timingPdfMaker::mean, meanDepth, PreshowerLayer2Properties::mipsPerGeV(), PreshowerLayer1Properties::mipsPerGeV(), myGammaGenerator, RadialInterval::nIntervals(), nPart, nSteps, NULL, EMECALShowerParametrization::p(), phi, photos, RandomEngine::poissonShoot(), prepareSteps(), ECALProperties::radLenIncm(), random, EMECALShowerParametrization::rC(), ECALProperties::resE(), EMECALShowerParametrization::rT(), HcalHitMaker::setDepth(), setIntervals(), GammaFunctionGenerator::setParameters(), HcalHitMaker::setSpotEnergy(), EcalHitMaker::setSpotEnergy(), PreshowerHitMaker::setSpotEnergy(), GammaFunctionGenerator::shoot(), HCALProperties::spotFraction(), mathSSE::sqrt(), ntuplemaker::status, relval_parameters_module::step, steps, stepsCalculated, lumiQTWidget::t, theECAL, theGrid, theHCAL, theHcalHitMaker, theLayer1, theLayer2, theNumberOfSpots, theParam, thePreshower, Ti, groupFilesInBlocks::tt, w2, and w3.

Referenced by CalorimetryManager::EMShowerSimulation().

                  {

  double samplingWidth = theECAL->da() + theECAL->dp();
  double theECALX0 = theECAL->radLenIncm();

  //  double one_over_resoSquare = 1./(theECAL->resE()*theECAL->resE());





  double t = 0.;
  double dt = 0.;
  if(!stepsCalculated) prepareSteps();

  // Prepare the grids in EcalHitMaker
  // theGrid->setInnerAndOuterDepth(innerDepth,outerDepth);
  float pstot=0.;
  float ps2tot=0.;
  float ps1tot=0.;
  bool status=false; 
  //  double E1 = 0.;  // Energy layer 1
  //  double E2 = 0.;  // Energy layer 2
  //  double n1 = 0.;  // #mips layer 1
  //  double n2 = 0.;  // #mips layer 2
  //  double E9 = 0.;  // Energy ECAL

  // Loop over all segments for the longitudinal development
  double totECalc = 0;
  


  for (unsigned iStep=0; iStep<nSteps; ++iStep ) {
    
    // The length of the shower in this segment
    dt = steps[iStep].second;

    //    std::cout << " Detector " << steps[iStep].first << " t " << t << " " << dt << std::endl;

    // The elapsed length
    t += dt;
    
    // In what detector are we ?
    unsigned detector=steps[iStep].first;
       
    bool presh1 = detector==0;
    bool presh2 = detector==1;
    bool ecal = detector==2;
    bool hcal = detector==3;
    bool vfcal = detector==4;
    bool gap = detector==5;

    // Temporary. Will be removed 
    if ( theHCAL==NULL) hcal=false;

    // Keep only ECAL for now
    if ( vfcal ) continue;

    // Nothing to do in the gap
    if( gap ) continue;

    //    cout << " t = " << t << endl;
    // Build the grid of crystals at this ECAL depth
    // Actually, it might be useful to check if this grid is empty or not. 
    // If it is empty (because no crystal at this depth), it is of no use 
    // (and time consuming) to generate the spots
    

   // middle of the step
    double tt = t-0.5*dt; 

    double realTotalEnergy=0.;
    for ( unsigned int i=0; i<nPart; ++i ) {
      realTotalEnergy += depositedEnergy[iStep][i]*E[i];
    }

//    std::cout << " Step " << tt << std::endl;
//    std::cout << "ecal " << ecal << " hcal "  << hcal <<std::endl;

    // If the amount of energy is greater than 1 MeV, make a new grid
    // otherwise put in the previous one.    
    bool usePreviousGrid=(realTotalEnergy<0.001);   

    // If the amount of energy is greater than 1 MeV, make a new grid
    // otherwise put in the previous one.    

    // If less than 1 kEV. Just skip
    if(iStep>2&&realTotalEnergy<0.000001) continue;

    if (ecal && !usePreviousGrid) 
      {
        status=theGrid->getPads(meanDepth[iStep]);
      }
    if (hcal) 
      {
        status=theHcalHitMaker->setDepth(tt);
      }
    if((ecal || hcal) && !status) continue;
    
    bool detailedShowerTail=false;
    // check if a detailed treatment of the rear leakage should be applied
    if(ecal && !usePreviousGrid) 
      {
        detailedShowerTail=(t-dt > theGrid->getX0back());
      }
    
    // The particles of the shower are processed in parallel
    for ( unsigned int i=0; i<nPart; ++i ) {

      //      double Edepo=deposit(t,a[i],b[i],dt);

     //  integration of the shower profile between t-dt and t
      double dE = (!hcal)? depositedEnergy[iStep][i]:1.-deposit(a[i],b[i],t-dt);

      // no need to do the full machinery if there is ~nothing to distribute)
      if(dE*E[i]<0.000001) continue;


      if (ecal && !theECAL->isHom()) {
        double mean = dE*E[i];
        double sigma = theECAL->resE()*sqrt(mean);
        
        /*
          double meanLn = log(mean);
          double kLn = sigma/mean+1;
          double sigmaLn = log(kLn);
        */

        double dE0 = dE;

        //        std::cout << "dE before shoot = " << dE << std::endl;
        dE = random->gaussShoot(mean, sigma)/E[i];
        
        //        myGammaGenerator->setParameters(aSam,bSam,0);
        //        dE = myGammaGenerator->shoot()/E[i];
        //        std::cout << "dE shooted = " << dE << " E[i] = " << E[i] << std::endl; 
        if (dE*E[i] < 0.000001) continue;
        photos[i] = photos[i]*dE/dE0;
        
      }



      /*
      if (ecal && !theParam->ecalProperties()->isHom()){

        double cSquare = TMath::Power(theParam->ecalProperties()->resE(),2);
        double aSam = dE/cSquare;
        double bSam = 1./cSquare;

        //      dE = dE*gam(bSam*dE, aSam)/tgamma(aSam);
      }
      */

      totECalc +=dE;
      
      if (dbe && fabs(dt-1.)< 1e-5 && ecal) {
        dbe->cd();             
        if (!dbe->get("EMShower/LongitudinalShape")) {}//std::cout << "NOT FOUND IN Shower.cc" << std::endl;}
        else {
          double dx = 1.;
          // dE is aready in relative units from 0 to 1
          dbe->get("EMShower/LongitudinalShape")->Fill(t, dE/dx);

          double step = theECALX0/samplingWidth;
          double binMin = abs((t-1)*step)+1;
          double binMax = abs(t*step)+1;
          double dBins = binMax-binMin;

          /*
          std::cout << "X0 = " << theECALX0 << " Sampling Width = " << samplingWidth << " t = " << t 
                    << " binMin = " << binMin << " binMax = " << binMax << " (t-1)*step = " 
                    << (t-1)*step+1 << " t*step = " << t*step+1 << std::endl;
          */

          if ( dBins < 1) {
            dbe->get("EMShower/LongitudinalShapeLayers")->Fill(binMin, dE/dx);
            //      std::cout << "bin " << binMin << " filled" << std::endl;
          }
          else {


            double w1 = (binMin + 1 - (t-1)*step - 1)/step;
            double w2 = 1./step;
            double w3 = (t*step+1-binMax)/step;

            //double Esum = 0;

            /*
            std::cout <<" ((t-1)*step - binMin) = " << (binMin + 1 - (t-1)*step - 1) 
                      <<" w1 = " << w1 << " w2 = " << w2 << " w3 = " << w3
                      << " (t*step+1 - binMax) = " << (t*step+1 - binMax) << std::endl;

            std::cout << "fill bin = " << binMin << std::endl;
            */

            dbe->get("EMShower/LongitudinalShapeLayers")->Fill(binMin, dE/dx*w1);
            //Esum = dE/dx*w1;

            for (int iBin = 1; iBin < dBins; iBin++){
              //              std::cout << "fill bin = " << binMin+iBin << std::endl;
              dbe->get("EMShower/LongitudinalShapeLayers")->Fill(binMin+iBin, dE/dx*w2);
              //              Esum += dE/dx*w2;
            }

            //      std::cout << "fill bin = " << binMax << std::endl;
            dbe->get("EMShower/LongitudinalShapeLayers")->Fill(binMax, dE/dx*w3);           
            //      Esum += dE/dx*w3;      
            //      std::cout << "Esum = " << Esum << " dE/dx = " << dE/dx << std::endl;
          }


        }
        //(dbe->get("TransverseShape"))->Fill(ri,log10(1./1000.*eSpot/0.2));

      }
 
      // The number of energy spots (or mips)
      double nS = 0;
      
      // ECAL case : Account for photostatistics and long'al non-uniformity
      if (ecal) {


        //      double aSam = E[i]*dE*one_over_resoSquare;
        //      double bSam = one_over_resoSquare;


        dE = random->poissonShoot(dE*photos[i])/photos[i];
        double z0 = random->gaussShoot(0.,1.);
        dE *= 1. + z0*theECAL->lightCollectionUniformity();

        // Expected spot number
        nS = ( theNumberOfSpots[i] * gam(bSpot[i]*tt,aSpot[i]) 
                                   * bSpot[i] * dt 
                                   / tgamma(aSpot[i]) );
        
      // Preshower : Expected number of mips + fluctuation
      }
      else if ( hcal ) {

        nS = ( theNumberOfSpots[i] * gam(bSpot[i]*tt,aSpot[i]) 
               * bSpot[i] * dt 
               / tgamma(aSpot[i]))* theHCAL->spotFraction();
        double nSo = nS ;
        nS = random->poissonShoot(nS);
        // 'Quick and dirty' fix (but this line should be better removed):
        if( nSo > 0. && nS/nSo < 10.) dE *= nS/nSo;

//      if(true)
//        {
//          std::cout << " theHCAL->spotFraction = " <<theHCAL->spotFraction() <<std::endl;
//          std::cout << " nSpot Ecal : " << nSo/theHCAL->spotFraction() << " Final " << nS << std::endl;
//        }
      }
      else if ( presh1 ) {
        
        nS = random->poissonShoot(dE*E[i]*theLayer1->mipsPerGeV());
        //      std::cout << " dE *E[i] (1)" << dE*E[i] << " " << dE*E[i]*theLayer1->mipsPerGeV() << "  "<< nS << std::endl;
        pstot+=dE*E[i];
        ps1tot+=dE*E[i];
        dE = nS/(E[i]*theLayer1->mipsPerGeV());

        //        E1 += dE*E[i]; 
        //      n1 += nS; 
        //      if (presh2) { E2 += SpotEnergy; ++n2; }
      
      } else if ( presh2 ) {
        
        nS = random->poissonShoot(dE*E[i]*theLayer2->mipsPerGeV());
        //      std::cout << " dE *E[i] (2) " << dE*E[i] << " " << dE*E[i]*theLayer2->mipsPerGeV() << "  "<< nS << std::endl;
        pstot+=dE*E[i];
        ps2tot+=dE*E[i];
        dE = nS/(E[i]*theLayer2->mipsPerGeV());

        //        E2 += dE*E[i]; 
        //      n2 += nS; 
        
      }

      if(detailedShowerTail)
        myGammaGenerator->setParameters(floor(a[i]+0.5),b[i],t-dt);
        


      //    myHistos->fill("h100",t,dE);
      
      // The lateral development parameters  
 
      // Energy of the spots
      double eSpot = (nS>0.) ? dE/nS : 0.;
      double SpotEnergy=eSpot*E[i];

      if(hasPreshower&&(presh1||presh2)) thePreshower->setSpotEnergy(0.00009);
      if(hcal) 
        {
          SpotEnergy*=theHCAL->hOverPi();
          theHcalHitMaker->setSpotEnergy(SpotEnergy);
        }
      // Poissonian fluctuations for the number of spots
      //    int nSpot = random->poissonShoot(nS);
      int nSpot = (int)(nS+0.5);
      
      
      // Fig. 11 (right) *** Does not match.
      //    myHistos->fill("h101",t,(double)nSpot/theNumberOfSpots);
      
      //double taui = t/T;
      double taui = tt/Ti[i];
      double proba = theParam->p(taui,E[i]);
      double theRC = theParam->rC(taui,E[i]);
      double theRT = theParam->rT(taui,E[i]);
      
      // Fig. 10
      //    myHistos->fill("h300",taui,theRC);
      //    myHistos->fill("h301",taui,theRT);
      //    myHistos->fill("h302",taui,proba);
      
      double dSpotsCore = 
        random->gaussShoot(proba*nSpot,std::sqrt(proba*(1.-proba)*nSpot));
      
      if(dSpotsCore<0) dSpotsCore=0;
      
      unsigned nSpots_core = (unsigned)(dSpotsCore+0.5);
      unsigned nSpots_tail = ((unsigned)nSpot>nSpots_core) ? nSpot-nSpots_core : 0;
      
      for(unsigned icomp=0;icomp<2;++icomp)
        {         
          
          double theR=(icomp==0) ? theRC : theRT ;    
          unsigned ncompspots=(icomp==0) ? nSpots_core : nSpots_tail;
          
          RadialInterval radInterval(theR,ncompspots,SpotEnergy,random);
          if(ecal)
            {
              if(icomp==0)
                {
                  setIntervals(icomp,radInterval);
                }
              else
                {
                  setIntervals(icomp,radInterval);
                }
            }
          else
            {
              radInterval.addInterval(100.,1.);// 100% of the spots
            }
          
          radInterval.compute();
           // irad = 0 : central circle; irad=1 : outside

           unsigned nrad=radInterval.nIntervals();

           for(unsigned irad=0;irad<nrad;++irad)
             {
               double spote=radInterval.getSpotEnergy(irad);
               if(ecal) theGrid->setSpotEnergy(spote);
               if(hcal) theHcalHitMaker->setSpotEnergy(spote);
               unsigned nradspots=radInterval.getNumberOfSpots(irad);
               double umin=radInterval.getUmin(irad);
               double umax=radInterval.getUmax(irad);
               // Go for the lateral development
               //              std::cout << "Couche " << iStep << " irad = " << irad << " Ene = " << E[i] << " eSpot = " << eSpot << " spote = " << spote << " nSpot = " << nS << std::endl;

               for ( unsigned  ispot=0; ispot<nradspots; ++ispot ) 
                 {
                   double z3=random->flatShoot(umin,umax);
                   double ri=theR * std::sqrt(z3/(1.-z3)) ;



                   //Fig. 12
                   /*
                   if ( 2. < t && t < 3. ) 
                     dbe->fill("h401",ri,1./1000.*eSpot/dE/0.2);
                   if ( 6. < t && t < 7. ) 
                     dbe->fill("h402",ri,1./1000.*eSpot/dE/0.2);
                   if ( 19. < t && t < 20. ) 
                     dbe->fill("h403",ri,1./1000.*eSpot/dE/0.2);
                   */
                   // Fig. 13 (top)
                   if (dbe && fabs(dt-1.)< 1e-5 && ecal) {
                     dbe->cd();             
                     if (!dbe->get("EMShower/TransverseShape")) {}//std::cout << "NOT FOUND IN Shower.cc" << std::endl;}
                     else {
                       double drho = 0.1;
                       double dx = 1;
                       // spote is a real energy we have to normalise it by E[i] which is the energy of the particle i
                       dbe->get("EMShower/TransverseShape")->Fill(ri,1/E[i]*spote/drho);
                       dbe->get("EMShower/ShapeRhoZ")->Fill(ri, t, 1/E[i]*spote/(drho*dx));
                     }
                   } else {
                     //              std::cout << "dt =  " << dt << " length = " << t << std::endl;  
                   }
               

                   // Generate phi
                   double phi = 2.*M_PI*random->flatShoot();
                   
                   // Add the hit in the crystal
                   //   if( ecal ) theGrid->addHit(ri*theECAL->moliereRadius(),phi);
                   // Now the *moliereRadius is done in EcalHitMaker
                   if ( ecal )
                     {
                       if(detailedShowerTail) 
                         {
                           //                      std::cout << "About to call addHitDepth " << std::endl;
                           double depth;
                           do
                             {
                               depth=myGammaGenerator->shoot();
                             }
                           while(depth>t);
                           theGrid->addHitDepth(ri,phi,depth);
                           //                      std::cout << " Done " << std::endl;
                         }
                       else
                         theGrid->addHit(ri,phi);
                     }
                   else if (hasPreshower&&presh1) thePreshower->addHit(ri,phi,1);
                   else if (hasPreshower&&presh2) thePreshower->addHit(ri,phi,2);
                   else if (hcal) 
                     {
                       //                      std::cout << " About to add a spot in the HCAL" << status << std::endl;
                       theHcalHitMaker->addHit(ri,phi);
                       //                      std::cout << " Added a spot in the HCAL" << status << std::endl;
                     }
                   //   if (ecal) E9 += SpotEnergy;
                   //   if (presh1) { E1 += SpotEnergy; ++n1; }
                   //   if (presh2) { E2 += SpotEnergy; ++n2; }

                   Etot[i] += spote;
                 }
             }
        }
      //      std::cout << " Done with the step " << std::endl;
      // The shower!
      //myHistos->fill("h500",theSpot.z(),theSpot.perp());
    }
    //    std::cout << " nPart " << nPart << std::endl;
  }
  //  std::cout << " Finshed the step loop " << std::endl;
  //  myHistos->fill("h500",E1+0.7*E2,E9);
  //  myHistos->fill("h501",n1+0.7*n2,E9);
  //  myHistos->fill("h400",n1);
  //  myHistos->fill("h401",n2);
  //  myHistos->fill("h402",E9+E1+0.7*E2);
  //  if(!standalone)theGrid->printGrid();
  double Etotal=0.;
  for(unsigned i=0;i<nPart;++i)
    {
      //      myHistos->fill("h10",Etot[i]);
      Etotal+=Etot[i];
    }

  //  std::cout << "Etotal = " << Etotal << " nPart = "<< nPart << std::endl; 
  //  std::cout << "totECalc = " << totECalc << std::endl;

  //  myHistos->fill("h20",Etotal);
  //  if(thePreshower)
  //    std::cout << " PS " << thePreshower->layer1Calibrated() << " " << thePreshower->layer2Calibrated() << " " << thePreshower->totalCalibrated() << " " << ps1tot << " " <<ps2tot << " " << pstot << std::endl;
}

double EMShower::deposit	(	double	t,
		double	a,
		double	b,
		double	dt
	)		`[private]`

Definition at line 807 of file EMShower.cc.

References dt, myIncompleteGamma, query::result, and lumiQTWidget::t.

Referenced by compute(), and prepareSteps().

                                                         {
  myIncompleteGamma.a().setValue(a);
  double b1=b*(t-dt);
  double b2=b*t;
  double result = 0.;  
  double rb1=(b1!=0.) ? myIncompleteGamma(b1) : 0.;
  double rb2=(b2!=0.) ?  myIncompleteGamma(b2) : 0.;
  result = (rb2-rb1);
  return result;
}

double EMShower::deposit	(	double	a,
		double	b,
		double	t
	)		`[private]`

Definition at line 848 of file EMShower.cc.

References alignCSCRings::e, myIncompleteGamma, query::result, and lumiQTWidget::t.

                                               {
  //  std::cout << " Deposit " << std::endl;
  myIncompleteGamma.a().setValue(a);
  double b2=b*t;
  double result = 0.;
  if(fabs(b2) < 1.e-9 ) b2 = 1.e-9;
  result=myIncompleteGamma(b2);
  //  std::cout << " deposit t = " << t  << " "  << result <<std::endl;
  return result;

}

double EMShower::gam	(	double	x,
		double	a
	)		const `[private]`

Definition at line 771 of file EMShower.cc.

References funct::exp(), and funct::pow().

Referenced by compute().

                                      {
  // A stupid gamma function
  return std::pow(x,a-1.)*std::exp(-x);
}

double EMShower::getMaximumOfShower ( ) const [inline]

get the depth of the centre of gravity of the shower(s)

get the depth of the maximum of the shower

Definition at line 61 of file EMShower.h.

References globalMaximum.

Referenced by CalorimetryManager::EMShowerSimulation().

{return globalMaximum;}

void EMShower::prepareSteps ( )

Computes the steps before the real compute.

Definition at line 160 of file EMShower.cc.

References a, b, bFixedLength_, deposit(), depositedEnergy, dt, E, EcalHitMaker::ecalTotalX0(), EcalHitMaker::hcalTotalX0(), i, innerDepth, meanDepth, nPart, nSteps, evf::evtn::offset(), outerDepth, EcalHitMaker::ps1TotalX0(), EcalHitMaker::ps2eeTotalX0(), EcalHitMaker::ps2TotalX0(), relval_parameters_module::step, steps, stepsCalculated, lumiQTWidget::t, theGrid, EcalHitMaker::totalX0(), and EcalHitMaker::x0DepthOffset().

Referenced by compute().

{
  //  TimeMe theT("EMShower::compute");
  
  // Determine the longitudinal intervals
  //  std::cout << " EMShower compute" << std::endl;
  double dt;
  double radlen;
  int stps;
  int first_Ecal_step=0;
  int last_Ecal_step=0;

  // The maximum is in principe 8 (with 5X0 steps in the ECAL)
  steps.reserve(24);

  /*  
  std::cout << " PS1 : " << theGrid->ps1TotalX0()
            << " PS2 : " << theGrid->ps2TotalX0()
            << " PS2 and ECAL : " << theGrid->ps2eeTotalX0()
            << " ECAL : " << theGrid->ecalTotalX0()
            << " HCAL : " << theGrid->hcalTotalX0() 
            << " Offset : " << theGrid->x0DepthOffset()
            << std::endl;
  */
  
  radlen = -theGrid->x0DepthOffset();
  
  // Preshower Layer 1
  radlen += theGrid->ps1TotalX0();
  if ( radlen > 0. ) {
    steps.push_back(Step(0,radlen));
    radlen = 0.;
  }
  
  // Preshower Layer 2
  radlen += theGrid->ps2TotalX0();
  if ( radlen > 0. ) {
    steps.push_back(Step(1,radlen));
    radlen = 0.;
  }
  
  // add a step between preshower and ee
  radlen += theGrid->ps2eeTotalX0();
  if ( radlen > 0.) {
    steps.push_back(Step(5,radlen));
    radlen = 0.;  
  }
  
  // ECAL
  radlen += theGrid->ecalTotalX0();

  //  std::cout << "theGrid->ecalTotalX0() = " << theGrid->ecalTotalX0() << std::endl;

  if ( radlen > 0. ) {

    if (!bFixedLength_){
      stps=(int)((radlen+2.5)/5.);
      //    stps=(int)((radlen+.5)/1.);
      if ( stps == 0 ) stps = 1;
      dt = radlen/(double)stps;
      Step step(2,dt);
      first_Ecal_step=steps.size();
      for ( int ist=0; ist<stps; ++ist )
        steps.push_back(step);
      last_Ecal_step=steps.size()-1;
      radlen = 0.;
    } else {
      dt = 1.0;
      stps = static_cast<int>(radlen); 
      if (stps == 0) stps = 1;
      Step step(2,dt);
      first_Ecal_step=steps.size();
      for ( int ist=0; ist<stps; ++ist ) steps.push_back(step);
      dt = radlen-stps;
      if (dt>0) {
        Step stepLast (2,dt);
        steps.push_back(stepLast);
      }
      last_Ecal_step=steps.size()-1;
      //      std::cout << "radlen = "  << radlen << " stps = " << stps << " dt = " << dt << std::endl;
      radlen = 0.;

    }
  } 

  // I should had a gap here ! 
 
 // HCAL 
 radlen += theGrid->hcalTotalX0();
 if ( radlen > 0. ) {
   double dtFrontHcal=theGrid->totalX0()-theGrid->hcalTotalX0();
   // One single step for the full HCAL
   if(dtFrontHcal<30.) 
     {
       dt=30.-dtFrontHcal;
       Step step(3,dt);
       steps.push_back(step);
     }
 } 

 nSteps=steps.size();
 if(nSteps==0) return;
 double ESliceTot=0.;
 double MeanDepth=0.;
 depositedEnergy.resize(nSteps);
 meanDepth.resize(nSteps);
 double t=0.;

 int offset=0;
 for(unsigned iStep=0;iStep<nSteps;++iStep)
   {
     ESliceTot=0.;
     MeanDepth=0.;
     double realTotalEnergy=0;
     dt=steps[iStep].second;
     t+=dt;
     for ( unsigned int i=0; i<nPart; ++i ) {
       depositedEnergy[iStep].push_back(deposit(t,a[i],b[i],dt));     
       ESliceTot +=depositedEnergy[iStep][i];
       MeanDepth += deposit(t,a[i]+1.,b[i],dt)/b[i]*a[i];
       realTotalEnergy+=depositedEnergy[iStep][i]*E[i];
     }

     if( ESliceTot > 0. )  // can happen for the shower tails; this depth will be skipped anyway
       MeanDepth/=ESliceTot;
     else
       MeanDepth=t-dt;

     meanDepth[iStep]=MeanDepth;
     if(realTotalEnergy<0.001)
       {
         offset-=1;
       }
   }

 innerDepth=meanDepth[first_Ecal_step];
 if(last_Ecal_step+offset>=0)
   outerDepth=meanDepth[last_Ecal_step+offset];
 else
   outerDepth=innerDepth;

 stepsCalculated=true;
}

void EMShower::setGrid ( EcalHitMaker *const myGrid ) [inline]

set the grid address

Definition at line 64 of file EMShower.h.

References theGrid.

Referenced by CalorimetryManager::EMShowerSimulation().

{ theGrid=myGrid;}

void EMShower::setHcal ( HcalHitMaker *const myHcal )

set the HCAL address

Definition at line 842 of file EMShower.cc.

References theHcalHitMaker.

Referenced by CalorimetryManager::EMShowerSimulation().

{
  theHcalHitMaker = myHcal;
}

void EMShower::setIntervals	(	unsigned	icomp,
		RadialInterval &	rad
	)		`[private]`

Definition at line 819 of file EMShower.cc.

References RadialInterval::addInterval(), EMECALShowerParametrization::getCoreIntervals(), EMECALShowerParametrization::getTailIntervals(), and theParam.

Referenced by compute().

{
  //  std::cout << " Got the pointer " << std::endl;
  const std::vector<double>& myValues((icomp)?theParam->getTailIntervals():theParam->getCoreIntervals());
  //  std::cout << " Got the vector " << myValues.size () << std::endl;
  unsigned nvals=myValues.size()/2;
  for(unsigned iv=0;iv<nvals;++iv)
    {
      //      std::cout << myValues[2*iv] << " " <<  myValues[2*iv+1] <<std::endl;
      rad.addInterval(myValues[2*iv],myValues[2*iv+1]);
    } 
}

void EMShower::setPreshower ( PreshowerHitMaker *const myPresh )

set the preshower address

Definition at line 832 of file EMShower.cc.

References hasPreshower, NULL, and thePreshower.

Referenced by CalorimetryManager::EMShowerSimulation().

{
  if(myPresh!=NULL)
    {
      thePreshower = myPresh;
      hasPreshower=true;
    }
}

Member Data Documentation

std::vector<double> EMShower::a [private]

Definition at line 105 of file EMShower.h.

Referenced by compute(), EMShower(), and prepareSteps().

std::vector<double> EMShower::aSpot [private]

Definition at line 109 of file EMShower.h.

Referenced by compute(), and EMShower().

std::vector<double> EMShower::b [private]

Definition at line 106 of file EMShower.h.

Referenced by compute(), EMShower(), and prepareSteps().

bool EMShower::bFixedLength_ [private]

Definition at line 153 of file EMShower.h.

Referenced by prepareSteps().

std::vector<double> EMShower::bSpot [private]

Definition at line 110 of file EMShower.h.

Referenced by compute(), and EMShower().

DQMStore* EMShower::dbe [private]

Definition at line 143 of file EMShower.h.

Referenced by compute(), and EMShower().

std::vector<std::vector<double> > EMShower::depositedEnergy [private]

Definition at line 116 of file EMShower.h.

Referenced by compute(), and prepareSteps().

std::vector<double> EMShower::E [private]

Definition at line 102 of file EMShower.h.

Referenced by compute(), EMShower(), and prepareSteps().

std::vector<double> EMShower::Etot [private]

Definition at line 101 of file EMShower.h.

Referenced by compute(), and EMShower().

double EMShower::globalMaximum [private]

Definition at line 120 of file EMShower.h.

Referenced by EMShower(), and getMaximumOfShower().

bool EMShower::hasPreshower [private]

Definition at line 139 of file EMShower.h.

Referenced by compute(), EMShower(), and setPreshower().

double EMShower::innerDepth [private]

Definition at line 118 of file EMShower.h.

Referenced by prepareSteps().

std::vector<double> EMShower::maximumOfShower [private]

Definition at line 115 of file EMShower.h.

Referenced by EMShower().

std::vector<double> EMShower::meanDepth [private]

Definition at line 117 of file EMShower.h.

Referenced by compute(), EMShower(), and prepareSteps().

GammaFunctionGenerator* EMShower::myGammaGenerator [private]

Definition at line 151 of file EMShower.h.

Referenced by compute().

Genfun::IncompleteGamma EMShower::myIncompleteGamma [private]

Definition at line 145 of file EMShower.h.

Referenced by deposit().

unsigned int EMShower::nPart [private]

Definition at line 97 of file EMShower.h.

Referenced by compute(), EMShower(), and prepareSteps().

unsigned EMShower::nSteps [private]

Definition at line 126 of file EMShower.h.

Referenced by compute(), and prepareSteps().

double EMShower::outerDepth [private]

Definition at line 118 of file EMShower.h.

Referenced by prepareSteps().

std::vector<double> EMShower::photos [private]

Definition at line 103 of file EMShower.h.

Referenced by compute(), and EMShower().

const RandomEngine* EMShower::random [private]

Definition at line 148 of file EMShower.h.

Referenced by compute(), and EMShower().

Steps EMShower::steps [private]

Definition at line 125 of file EMShower.h.

Referenced by compute(), and prepareSteps().

bool EMShower::stepsCalculated [private]

Definition at line 127 of file EMShower.h.

Referenced by compute(), EMShower(), and prepareSteps().

std::vector<double> EMShower::T [private]

Definition at line 104 of file EMShower.h.

const ECALProperties* EMShower::theECAL [private]

Definition at line 90 of file EMShower.h.

Referenced by compute(), and EMShower().

EcalHitMaker* EMShower::theGrid [private]

Definition at line 130 of file EMShower.h.

Referenced by compute(), prepareSteps(), and setGrid().

const HCALProperties* EMShower::theHCAL [private]

Definition at line 91 of file EMShower.h.

Referenced by compute(), and EMShower().

HcalHitMaker* EMShower::theHcalHitMaker [private]

Definition at line 136 of file EMShower.h.

Referenced by compute(), and setHcal().

const PreshowerLayer1Properties* EMShower::theLayer1 [private]

Definition at line 92 of file EMShower.h.

Referenced by compute(), and EMShower().

const PreshowerLayer2Properties* EMShower::theLayer2 [private]

Definition at line 93 of file EMShower.h.

Referenced by compute(), and EMShower().

std::vector<double> EMShower::theNumberOfSpots [private]

Definition at line 100 of file EMShower.h.

Referenced by compute(), and EMShower().

EMECALShowerParametrization* const EMShower::theParam [private]

Definition at line 87 of file EMShower.h.

Referenced by compute(), EMShower(), and setIntervals().

std::vector<const RawParticle*>* const EMShower::thePart [private]

Definition at line 96 of file EMShower.h.

Referenced by EMShower().

PreshowerHitMaker* EMShower::thePreshower [private]

Definition at line 133 of file EMShower.h.

Referenced by compute(), and setPreshower().

std::vector<double> EMShower::Ti [private]

Definition at line 107 of file EMShower.h.

Referenced by compute(), and EMShower().

double EMShower::totalEnergy [private]

Definition at line 122 of file EMShower.h.

Referenced by EMShower().

std::vector<double> EMShower::TSpot [private]

Definition at line 108 of file EMShower.h.

Referenced by EMShower().

EMShower Class Reference

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation