--- /dev/null
+// $Id$
+
+//_________________________________________________________________________
+// Class for easier handling of track-cluster electron PID.
+//
+// Author: Tomas Aronsson (Yale)
+///////////////////////////////////////////////////////////////////////////
+
+#include <Riostream.h>
+#include <TLorentzVector.h>
+#include <TObjArray.h>
+#include <AliEMCALGeometry.h>
+#include <AliESD.h>
+#include <AliESD.h>
+#include <AliESDCaloCells.h>
+#include <AliESDCaloCluster.h>
+#include <AliESDtrack.h>
+#include <AliESDtrack.h>
+#include "AliEMCALClusterParams.h"
+
+ClassImp(AliEMCALClusterParams)
+
+//____________________________________________________________________________
+AliEMCALClusterParams::AliEMCALClusterParams(AliESDtrack *trackin,
+ AliESDCaloCluster *clusin,
+ AliEMCALGeometry *geometryin,
+ AliESDCaloCells *cellsin) :
+ TObject(),
+ fTrack(trackin),
+ fCluster(clusin),
+ fGeom(geometryin),
+ fCells(cellsin)
+{
+ // Constructor.
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetPe() const
+{
+ Double_t pe=fTrack->Pt()/fCluster->E();
+ return pe;
+}
+
+//____________________________________________________________________________
+Int_t AliEMCALClusterParams::IsElectron() const
+{
+ Double_t ep=fCluster->E()/fTrack->Pt();
+// if (fCluster->GetNCells() < 2 ) return 0;
+// if (fCluster->GetNCells() > 35 ) return 0;
+// if (fCluster->E() < 0 ) return 0;
+// if (fCluster->GetDispersion() > 1.08 ) return 0;
+// if (fCluster->GetM20() > 0.42 ) return 0;
+// if (fCluster->GetM02() > 0.4 ) return 0;
+// if (fCluster->GetM20() < 0 ) return 0;
+// if (fCluster->GetM02() < 0.06 ) return 0;
+ Int_t istpce=0;
+ Double_t dEdx=0;
+ dEdx=fTrack->GetTPCsignal();
+ //if(dEdx0>75.&&dEdx0<95&&fRunnumber>141794&&fRunnumber<146861) istpce0=1;
+ //if(dEdx0>56.&&dEdx0<73&&fRunnumber>151564&&fRunnumber<155385) istpce0=1;
+ //if(dEdx0 > 70.&&fRunnumber<141795) istpce0=1;
+ if(dEdx>70.0&&dEdx<95.0) istpce=1;
+
+ if (ep>0.8&&ep<1.2&&istpce) return 1;
+ else return 0;
+}
+
+//____________________________________________________________________________
+void AliEMCALClusterParams::LoopThroughCells() const
+{
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+
+ printf("Cell %d id: %d. ",i,celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ printf("iphi,eta: %d %d, ",iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+ printf("smod %d tower %d ieta %d iphi %d \n",iSupMod,iTower,iphi,ieta);
+ }
+}
+
+//____________________________________________________________________________
+void AliEMCALClusterParams::PrintClusterParameters() const
+{
+ printf("N fCells: %d Energy: %f Dispersion %f M02: %f M20: %f p/E: %f \n",
+ fCluster->GetNCells(),fCluster->E(),fCluster->GetDispersion(),
+ fCluster->GetM02(),fCluster->GetM20(),fTrack->Pt()/fCluster->E());
+}
+
+//===================================== UNWEIGHTED PARAMETERS==================================
+
+//____________________________________________________________________________
+void AliEMCALClusterParams::GetCentroid(Double_t &xback, Double_t &yback, Double_t &rback) const
+{
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ //Calculates mean x,y and r of the fCluster
+ Double_t etai=0, phii=0;
+ Double_t xsum=0;
+ Double_t ysum=0;
+ Double_t rsum=0;
+ Double_t esum=0;
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+
+ //printf("Cell %d id: %d. ",i,celllist[i]);
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ // printf("iphi,eta: %d %d, ",iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+ //printf("smod %d tower %d ieta %d iphi %d \n",iSupMod,iTower,iphi,ieta);
+
+ etai=(Double_t)ieta+1.;
+ phii=(Double_t)iphi+1.;
+ xsum+=etai*fCells->GetCellAmplitude(celllist[i]);
+ ysum+=phii*fCells->GetCellAmplitude(celllist[i]);
+ esum+=fCells->GetCellAmplitude(celllist[i]);
+ rsum+=sqrt(etai*etai+phii*phii)*fCells->GetCellAmplitude(celllist[i]);
+ }
+ yback=ysum/esum;
+ xback=xsum/esum;
+ rback=rsum/esum;
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetR(Double_t x, Double_t y) const
+{
+ // Takes fCluster, and cell position (x,y) and returns distance of cell from centroid
+
+ Double_t rmean=-99;
+ Double_t xmean=-99;
+ Double_t ymean=-99;
+
+ GetCentroid(xmean,ymean,rmean);
+ return sqrt(pow((x-xmean),2)+pow((y-ymean),2));
+}
+
+//_____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetRfactor() const
+{
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ //Calculates mean x,y and r of the fCluster
+ Double_t etai=0, phii=0;
+ Double_t rsum=0;
+ Double_t esum=0;
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ etai=(Double_t)ieta+1.;
+ phii=(Double_t)iphi+1.;
+ esum+=fCells->GetCellAmplitude(celllist[i]);
+ rsum+=GetR(etai,phii)*fCells->GetCellAmplitude(celllist[i]);//GetR!
+ }
+
+ rsum=rsum/esum;
+ return rsum;
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::ElectronFraction(Double_t r, Double_t tce) const
+{
+ // In determination of the 'K-factor', we measure the 'dispersion' of the [energy fraction of the cell
+ // as a function of cell distance from the centroid] from the the distribution for electrons
+ // the functional form for electrons is saved here.
+ // tce is TOTAL FCLUSTER ENERGY, r is distance of cell to centroid.
+
+ Double_t parm[20][11] = {{0.968421,-0.952347,0.196982,-495.028,495.028,0.512768,3.21555,-134.368,950.132,0.258585,-0.0819375},
+ {0.964309,-0.955084,0.212321,-401.273,401.273,0.600581,-2.44701,-43.9126,1009.65,0.19388,-0.0527486},
+ {0.949579,-0.938399,0.169353,-398.208,398.208,0.801709,-16.1048,399.842,-2319.64,0.16054,-0.044954},
+ {0.937618,-0.926665,0.173489,-291.715,291.715,0.723635,-5.65824,222.248,-1525.94,0.125206,-0.0108058},
+ {0.922977,-0.91741,0.174686,-269.155,269.155,0.777305,-0.656328,86.8073,-733.079,0.123508,-0.0159208},
+ {0.88858,-0.86354,0.102552,-280.217,280.217,0.746299,7.06471,-93.7562,323.688,0.128045,-0.0306688},
+ {0.859556,-0.83609,0.108273,-275.632,275.632,0.752012,4.78987,-66.0216,262.093,0.102209,-0.0201003},
+ {0.789254,-0.749649,0.0960812,-331.001,331.001,0.703363,6.70229,-129.452,725.871,0.0861534,-0.0127965},
+ {0.813629,-0.784791,0.0847636,-287.469,287.469,0.7138,7.15787,-142.766,820.634,0.0625165,-0.00910334},
+ {0.828972,-0.805683,0.0812484,-522.356,522.356,0.813623,1.77465,-34.6065,147.756,0.0467835,-0.00425002},
+ {0.900904,-0.890754,0.048338,-1180.84,1180.84,0.870175,0.0385033,-6.99334,19.6102,0.0232503,-0.00446416},
+ {0.881545,-0.870425,0.0382378,-750,750,0.857701,0.181933,-7.72458,12.6329,0.0198669,-0.00436687},
+ {0.893767,-0.878626,0.0465724,-750,750,0.867552,0.0868854,-9.17702,27.6996,0.013101,-0.00261109},
+ {0.88893,-0.882229,0.0896708,-1166.94,828.101,0.864913,-0.245158,-1.5693,-10.5061,0.00658265,-0.000176185},
+ {0.875546,-0.867819,0.0433809,-750,750,0.853546,0.103699,-4.53405,0.67608,0.00667051,-0.00110355},
+ {0.879879,-0.874221,0.0510928,-750,750,0.846377,0.246414,-4.28576,-22.6443,0.00537529,-0.000852894},
+ {0.889361,-0.884282,0.0475369,-750,750,0.845565,0.419865,-7.83763,-2.71567,0.00348465,-0.000407448},
+ {0.893711,-0.890189,0.0649599,-847.351,847.351,0.844507,0.379177,-8.07506,7.69156,0.0005,-2.89084e-13},
+ {0.893706,-0.891587,0.0409521,-750,750,0.841632,0.269466,-4.04288,-14.8299,0.00211674,-0.000173327},
+ {0.942361,-0.941082,0.0703767,-750,750,0.83202,0.829046,-11.3403,29.0905,0.00025,5.67537e-05}};
+
+ Double_t par[11]={0};
+ if (tce>0&&tce<0.6) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[0][l];
+ } else if (tce>0.6&&tce<0.8) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[1][l];
+ } else if (tce>0.8&&tce<1.12) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[2][l];
+ } else if (tce>1.12&&tce<1.37) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[3][l];
+ } else if (tce>1.37&&tce<1.75) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[4][l];
+ } else if (tce>1.75&&tce<2.5) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[5][l];
+ } else if (tce>2.5&&tce<3.5) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[6][l];
+ } else if (tce>3.5&&tce<4.5) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[7][l];
+ } else if (tce>4.5&&tce<5.5) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[8][l];
+ } else if (tce>5.5&&tce<8) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[9][l];
+ } else if (tce<8&&tce>12) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[10][l];
+ } else if (tce>12&&tce<20) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[11][l];
+ } else if (tce>20&&tce<40) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[12][l];
+ } else if (tce>40&&tce<63) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[13][l];
+ } else if (tce>63&&tce<88) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[14][l];
+ } else if (tce>88&&tce<113) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[15][l];
+ } else if (tce>113&&tce<138) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[16][l];
+ } else if (tce>138&&tce<163) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[17][l];
+ } else if (tce>163&&tce<188) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[18][l];
+ } else if (tce>188) {
+ for (Int_t l=0;l<11;l++)
+ par[l]=parm[19][l];
+ }
+
+ Double_t fr=0.;
+ if (r<0.1) {
+ fr =par[5]+par[6]*r+par[7]*r*r+par[8]*r*r*r;
+ } else if (r>0.1&&r<0.92) {
+ fr = par[0]+par[1]*r+par[2]*exp(par[3]-par[4]*r);
+ } else if (r>0.92&&r<6) {
+ fr = par[9] + par[10]*r;
+ }
+ if (r>6) {
+ cout<<"Crappy f(r_i) value, more than 6!"<<endl;
+ }
+
+ return fr; //returns fraction of energy at r,E: f(r,E), correct?
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetKfactor() const
+{
+ // Determines the k-factor, uses the funtion ElectronFraction(r,totalenergyoffCluster)
+
+ Double_t totalFClusterEnergy = fCluster->E();
+ //Calculates mean x,y and r of the fCluster
+ Double_t etai=0, phii=0;
+
+ Double_t kfactor=0;
+
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ etai=(Double_t)ieta+1.;
+ phii=(Double_t)iphi+1.;
+
+ kfactor+=GetR(etai,phii)*pow(fCells->GetCellAmplitude(celllist[i])/(totalFClusterEnergy) -
+ ElectronFraction(GetR(etai,phii),totalFClusterEnergy),2);
+ }
+
+ return kfactor;
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetDispersionX() const
+{
+ Double_t rmean=-99;
+ Double_t xmean=-99;
+ Double_t ymean=-99;
+ Double_t esum=0;
+ Double_t dsum=0;
+
+ GetCentroid(xmean,ymean,rmean);
+
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ Double_t etai=(Double_t)ieta+1.;
+
+ dsum+=(pow(etai-xmean,2))*fCells->GetCellAmplitude(celllist[i]);
+ esum+=fCells->GetCellAmplitude(celllist[i]);
+ }
+
+ return sqrt(dsum/esum);
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetDispersionY() const
+{
+ Double_t rmean=-99;
+ Double_t xmean=-99;
+ Double_t ymean=-99;
+ Double_t esum=0;
+ Double_t dsum=0;
+
+ GetCentroid(xmean,ymean,rmean);
+
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ Double_t phii=(Double_t)iphi+1.;
+
+ dsum+=(pow(phii-ymean,2))*fCells->GetCellAmplitude(celllist[i]);
+ esum+=fCells->GetCellAmplitude(celllist[i]);
+ }
+
+ return sqrt(dsum/esum);
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetDispersionMax() const
+{
+ Double_t dispX = GetDispersionX();
+ Double_t dispY = GetDispersionY();
+ if (dispY > dispX) {
+ return dispY;
+ }
+ else {
+ return dispX;
+ }
+}
+
+//____________________________________________________________________________
+void AliEMCALClusterParams::GetEllipseParameters(Double_t ¶m1, Double_t ¶m2) const
+{
+ Double_t sumxx=0;
+ Double_t sumyy=0;
+ Double_t sumx=0;
+ Double_t sumy=0;
+ Double_t sumxy=0;
+ Double_t esum=0;
+
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ Double_t phii=(Double_t)iphi+1.;
+ Double_t etai=(Double_t)ieta+1.;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ sumxx += amp*pow(etai,2);
+ sumyy += amp*pow(phii,2);
+ sumx += amp*etai;
+ sumy += amp*phii;
+ sumxy += amp*etai*phii;
+ esum+=amp;
+ }
+ sumxx=sumxx/esum;
+ sumyy = sumyy/esum;
+ sumx = sumx/esum;
+ sumy = sumy/esum;
+ sumxx=sumxx-sumx*sumx;
+ sumyy = sumyy-sumy*sumy;
+ sumxy = sumxy/esum - sumx*sumy;
+
+ param1 = 0.5*(sumxx+sumyy) + sqrt(0.25*pow((sumxx-sumyy),2) + sumxy*sumxy);
+ param2 = 0.5*(sumxx+sumyy) - sqrt(0.25*pow((sumxx-sumyy),2) + sumxy*sumxy);
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetDispersion() const
+{
+ Double_t rmean=-99;
+ Double_t xmean=-99;
+ Double_t ymean=-99;
+ Double_t esum=0;
+ Double_t dsum=0;
+
+ GetCentroid(xmean,ymean,rmean);
+
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ Double_t phii=(Double_t)iphi+1.;
+ Double_t etai=(Double_t)ieta+1.;
+
+ dsum+=(pow(phii-ymean,2)+pow(etai-xmean,2))*amp;
+ esum+=amp;
+ }
+
+ return sqrt(dsum/esum);
+}
+
+//============================LOG WEIGHTED PARAMETERS========================================================
+
+//____________________________________________________________________________
+void AliEMCALClusterParams::GetWeightedCentroid(Double_t &xback, Double_t &yback, Double_t &rback) const
+{
+ Float_t logWeight = 4.5;
+ Double_t totalFClusterEnergy=fCluster->E();
+
+ //Calculates mean x,y and r of the fCluster
+ Double_t etai=0, phii=0;
+ Double_t xsum=0;
+ Double_t ysum=0;
+ Double_t rsum=0;
+ Double_t esum=0;
+
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ etai=(Double_t)ieta+1.;
+ phii=(Double_t)iphi+1.;
+ Double_t w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy ));
+ xsum+=etai*w;
+ ysum+=phii*w;
+ esum+=w;
+ rsum+=sqrt(etai*etai+phii*phii)*w;
+
+ }
+ yback=ysum/esum;
+ xback=xsum/esum;
+ rback=rsum/esum;
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetWeightedR(Double_t x, Double_t y) const
+{
+ //takes fCluster, and cell position (x,y) and returns distance of cell from
+ //centroid
+ Double_t rmean=-99;
+ Double_t xmean=-99;
+ Double_t ymean=-99;
+
+ GetWeightedCentroid(xmean,ymean,rmean);
+ return sqrt(pow((x-xmean),2)+pow((y-ymean),2));
+}
+
+//_____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetWeightedRfactor() const
+{
+ Double_t rsum=0;
+ Double_t esum=0;
+ Double_t etai=0, phii=0;
+
+ Float_t logWeight = 4.5;
+
+ Double_t totalFClusterEnergy=fCluster->E();
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ etai=(Double_t)ieta+1.;
+ phii=(Double_t)iphi+1.;
+ Double_t w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy ));
+ esum+=w;
+ rsum+=GetWeightedR(etai,phii)*w;
+ }
+ rsum=rsum/esum;
+
+ return rsum;
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::ElectronfractionWeighted(Double_t r, Double_t tce) const
+{
+ // In determination of the 'K-factor', we measure the 'dispersion' of the [energy fraction of the cell
+ // as a function of cell distance from the centroid] from the the distribution for electrons
+ // the functional form for electrons is saved here.
+
+ Double_t parm[20][10] = {{9.65749,-25.2283,146.575,-207.63,-3.53453,86.296,-176.854,110.51,8.21828,0.097827},
+ {9.69895,-19.8042,112.42,-156.762,16.8874,-27.4961,28.4271,-9.31945,8.18897,-0.213499},
+ {9.58816,-15.0126,92.8682,-137.142,19.3093,-42.9118,59.9102,-29.9932,8.10929,-0.118502},
+ {9.66433,-17.3556,105.064,-154.824,19.3254,-43.845,63.0948,-32.7479,7.3532,0.437176},
+ {9.63564,-12.3028,76.0095,-113.329,16.337,-29.9111,42.2855,-22.8323,7.56083,0.14301},
+ {9.57174,-8.92634,58.7273,-91.3475,9.81528,2.85217,-10.6939,4.76399,7.93151,-0.320945},
+ {9.49951,-3.10053,18.9051,-26.8457,11.5665,-6.0263,3.44864,-2.37582,7.36371,-0.057224},
+ {9.43673,-2.63179,13.7039,-19.2528,9.83544,0.91246,-6.30083,2.46559,7.36203,-0.146645},
+ {9.5378,-2.35688,12.6874,-19.3792,7.64049,12.0476,-24.2138,11.5242,7.2368,-0.337072},
+ {9.52255,-0.989157,7.61241,-14.1598,6.28615,18.4146,-33.4616,15.6595,6.66628,-0.0979268},
+ {9.92079,-1.74431,9.58206,-16.8904,20.9936,-35.2392,29.6651,-9.03178,5.74954,-0.082485},
+ {9.88709,-1.11991,6.64989,-13.221,15.0524,-15.8677,9.13398,-1.97541,5.5779,-0.146283},
+ {9.91925,-1.71077,9.34349,-16.919,15.913,-16.3563,8.1726,-1.38982,5.04338,-0.120024},
+ {9.90981,-2.53254,13.2516,-21.0921,15.1033,-14.4442,6.87168,-1.18726,4.25787,0.0881321},
+ {9.7964,-0.0431799,2.45754,-9.00884,15.2986,-15.7366,8.37136,-1.66767,3.83555,0.0409475},
+ {9.82242,-0.718889,5.19571,-11.6806,15.4565,-16.0309,8.56511,-1.70815,3.46559,0.0840781},
+ {9.88062,-1.21927,7.07515,-13.7956,14.2168,-13.5604,6.90633,-1.3678,3.06548,0.162603},
+ {9.98456,-2.58626,12.6175,-20.0417,12.9291,-10.2085,4.02983,-0.606252,3.34551,0.040163},
+ {9.89892,-1.45526,8.17534,-14.9205,12.5899,-9.74255,4.08869,-0.718114,2.51632,0.245529},
+ {11.2705,-5.29437,0.810794,-0.00331736,10.2653,-0.725442,-3.84838,1.23406,3.85982,-0.188577}};
+
+ Double_t par[10]={0};
+ if (tce>0&&tce<0.6) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[0][l];
+ } else if (tce>0.6&&tce<0.8) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[1][l];
+ } else if (tce>0.8&&tce<1.12) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[2][l];
+ } else if (tce>1.12&&tce<1.37) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[3][l];
+ } else if (tce>1.37&&tce<1.75) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[4][l];
+ } else if (tce>1.75&&tce<2.5) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[5][l];
+ } else if (tce>2.5&&tce<3.5) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[6][l];
+ } else if (tce>3.5&&tce<4.5) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[7][l];
+ } else if (tce>4.5&&tce<5.5) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[8][l];
+ } else if (tce>5.5&&tce<8) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[9][l];
+ } else if (tce<8&&tce>12) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[10][l];
+ } else if (tce>12&&tce<20) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[8][l];
+ } else if (tce>20&&tce<40) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[12][l];
+ } else if (tce>40&&tce<63) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[13][l];
+ } else if (tce>63&&tce<88) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[14][l];
+ } else if (tce>88&&tce<113) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[15][l];
+ } else if (tce>113&&tce<138) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[16][l];
+ } else if (tce>138&&tce<163) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[17][l];
+ } else if (tce>163&&tce<188) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[18][l];
+ } else if (tce>188) {
+ for (Int_t l=0;l<10;l++)
+ par[l]=parm[19][l];
+ }
+
+ Double_t fr=0.;
+ if (r<0.5) {
+ fr = par[4]+par[5]*r+par[6]*r*r+par[7]*r*r*r;
+ } else if (r>0.5&&r<1.0) {
+ fr = par[0]+par[1]*r+par[2]*r*r+par[3]*r*r*r;
+ } else if (r>1.0&&r<6) {
+ fr = par[8] + par[9]*r;
+ }
+ if (r>6) {
+ cout<<"Crappy f(r_i) value, more than 6!"<<endl;
+ }
+
+ //cout<<"Weighter fr is: "<<fr<<" and tce,r: "<<tce<<" "<<r<<endl;
+ return fr;
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetWeightedKfactor() const
+{
+ Double_t logWeight = 4.5;
+ //determines the k-factor
+ Double_t kfactor=0;
+
+ Double_t totalFClusterEnergy=fCluster->E();
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ Double_t etai=(Double_t)ieta+1.;
+ Double_t phii=(Double_t)iphi+1.;
+
+ Double_t w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy ));
+ kfactor+=GetWeightedR(etai,phii)*pow(w - ElectronfractionWeighted(GetWeightedR(etai,phii),totalFClusterEnergy),2);
+ }
+
+ return kfactor;
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetWeightedDispersionX() const
+{
+ Float_t logWeight = 4.5;
+ // Calculates the dispersion of the shower at the origin of the RecPoint
+ // in cell units - Nov 16,2006
+
+ Double_t d = 0., wtot = 0., w = 0.;
+ Int_t nstat=0;
+
+ // Calculates the dispersion in cell units
+ Double_t etai=0, etaMean=0.0;
+
+ // Calculate mean values
+ Double_t totalFClusterEnergy=fCluster->E();
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ Int_t ncell=0;//cell counter
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ ncell++;
+
+ etai=(Double_t)ieta+1.;
+ w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy )); //Calc weight
+ if (w>0.0) {
+ etaMean += etai*w;
+ wtot += w;
+ }
+ }
+
+ if (wtot>0)
+ etaMean = etaMean/wtot;
+
+ // Calculate dispersion
+ // Loop over fCells in the newly created fCluster
+ Int_t ncell1=0;//cell counter
+ nstat=0;
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ ncell1++;
+ etai=(Double_t)ieta+1.;
+ w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy));
+
+ if (w>0.0) {
+ nstat++;
+ d += w*((etai-etaMean)*(etai-etaMean)); //Add squares
+ }
+ }
+
+ if ( wtot > 0 && nstat>1) d /= wtot;
+ else d = 0.;
+
+ return TMath::Sqrt(d);
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetWeightedDispersionY() const
+{
+ Float_t logWeight = 4.5;
+ // Calculates the dispersion of the shower at the origin of the RecPoint
+ // in cell units - Nov 16,2006
+
+ Double_t d = 0., wtot = 0., w = 0.;
+ Int_t nstat=0;
+
+ // Calculates the dispersion in cell units
+ Double_t phii=0, phiMean=0.0;
+
+ // Calculate mean values
+ Double_t totalFClusterEnergy=fCluster->E();
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ Int_t ncell=0;//cell counter
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ ncell++;
+
+ phii=(Double_t)iphi+1.;
+ w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy )); //Calc weight
+ if (w>0.0) {
+ phiMean += phii*w;
+ wtot += w;
+ }
+ }
+
+ if (wtot>0)
+ phiMean = phiMean/wtot;
+
+ // Calculate dispersion
+ // Loop over fCells in the newly created fCluster
+ Int_t ncell1=0;//cell counter
+ nstat=0;
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ ncell1++;
+
+ phii=(Double_t)iphi+1.;
+ w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy));
+
+ if (w>0.0) {
+ nstat++;
+ d += w*((phii-phiMean)*(phii-phiMean)); //Add squares
+ }
+ }
+
+ if ( wtot > 0 && nstat>1) d /= wtot;
+ else d = 0.;
+
+ return TMath::Sqrt(d);
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetWeightedDispersionMax() const
+{
+ Double_t dispX = GetWeightedDispersionX();
+ Double_t dispY = GetWeightedDispersionY();
+ if (dispY > dispX) {
+ return dispY;
+ }
+ else {
+ return dispX;
+ }
+}
+
+//____________________________________________________________________________
+void AliEMCALClusterParams::GetWeightedEllipseParameters(Double_t ¶m1, Double_t ¶m2) const
+{
+ Float_t logWeight=4.5;
+
+ Double_t wtot = 0.;
+ Double_t x = 0.;
+ Double_t z = 0.;
+ Double_t dxx = 0.;
+ Double_t dzz = 0.;
+ Double_t dxz = 0.;
+
+ Double_t etai =0, phii=0, w=0;
+
+ Int_t ncell=0;//cell counter
+
+ Double_t totalFClusterEnergy=fCluster->E();
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ ncell++;
+ etai = phii = 0.;
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ etai=(Double_t)ieta;
+ phii=(Double_t)iphi;
+
+ //Weight!
+ w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy ) ); //Energy of tower/total clus E, in GeV
+ dxx += w * etai * etai;
+ x += w * etai;
+ dzz += w * phii * phii;
+ z += w * phii;
+ dxz += w * etai * phii;
+ wtot += w;
+ }
+
+ if ( wtot > 0 ) {
+ dxx /= wtot;
+ x /= wtot;
+ dxx -= x * x;
+ dzz /= wtot;
+ z /= wtot;
+ dzz -= z * z;
+ dxz /= wtot;
+ dxz -= x * z;
+ param1 = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
+ param2 = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ;
+ } else {
+ param1= 0.;
+ param2= 0.;
+ }
+}
+
+//____________________________________________________________________________
+Double_t AliEMCALClusterParams::GetWeightedDispersion(Double_t &dispersionback) const
+{
+ Float_t logWeight = 4.5;
+ // Calculates the dispersion of the shower at the origin of the RecPoint
+ // in cell units - Nov 16,2006
+
+ Double_t d = 0., wtot = 0., w = 0.;
+ Int_t nstat=0;
+
+
+ // Calculates the dispersion in cell units
+ Double_t etai, phii, etaMean=0.0, phiMean=0.0;
+
+ // Calculate mean values
+ Int_t ncell=0;//cell counter
+
+ Double_t totalFClusterEnergy=fCluster->E();
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ ncell++;
+ etai = phii = 0.;
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ etai=(Double_t)ieta+1.;
+ phii=(Double_t)iphi+1.;
+ w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy )); //Calc weight
+ if (w>0.0) {
+ phiMean += phii*w;
+ etaMean += etai*w;
+ wtot += w;
+ }
+ //digit->Delete();
+ }
+
+ if (wtot>0.0) {
+ phiMean = phiMean/wtot;
+ etaMean = etaMean/wtot;
+ }
+
+ // Calculate dispersion
+ Int_t ncell1=0;//cell counter
+ nstat=0;
+
+ for (Int_t i=0;i<nclusfCells;i++) {
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+
+ ncell1++;
+ etai = phii = 0.;
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ etai=(Double_t)ieta+1.;
+ phii=(Double_t)iphi+1.;
+ w = TMath::Max(0.,logWeight+TMath::Log(amp/totalFClusterEnergy));
+
+ if (w>0.0) {
+ nstat++;
+ d += w*((etai-etaMean)*(etai-etaMean)+(phii-phiMean)*(phii-phiMean)); //Add squares
+ }
+ //delete digit;
+ }
+
+ //delete digit;
+
+ if ( wtot > 0 && nstat>1) d /= wtot;
+ else d = 0.;
+
+ //printf("AliEMCALRecPoint::EvalDispersion() : Dispersion %f \n",d);
+ dispersionback=d;
+ return TMath::Sqrt(d);
+
+}
+
+//____________________________________________________________________________
+void AliEMCALClusterParams::RecalculateClusterShowerShapeParameters(Double_t &m02, Double_t &m20, Double_t &dispersion) const
+{
+ // Calculates new center of gravity in the local EMCAL-module coordinates
+ // and tranfers into global ALICE coordinates
+ // Calculates Dispersion and main axis
+
+ Double_t fW0=4.5;
+
+ Int_t nstat = 0;
+ Float_t wtot = 0.;
+ Double_t eCell = 0.;
+
+ Int_t iSupMod = -1;
+ Int_t iTower = -1;
+ Int_t iIphi = -1;
+ Int_t iIeta = -1;
+ Int_t iphi = -1;
+ Int_t ieta = -1;
+ Double_t etai = -1.;
+ Double_t phii = -1.;
+
+ Double_t w = 0.;
+ Double_t d = 0.;
+ Double_t dxx = 0.;
+ Double_t dzz = 0.;
+ Double_t dxz = 0.;
+ Double_t xmean = 0.;
+ Double_t zmean = 0.;
+
+ Double_t totalFClusterEnergy=fCluster->E();
+ Int_t nclusfCells=fCluster->GetNCells();
+ UShort_t *celllist;
+ celllist=fCluster->GetCellsAbsId();
+
+ //Loop on fCells
+ for (Int_t i=0;i<nclusfCells;i++) {
+ //Get from the absid the supermodule, tower and eta/phi numbers
+
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ Double_t amp=fCells->GetCellAmplitude(celllist[i]);
+ eCell =amp;
+
+ if (totalFClusterEnergy > 0 && eCell > 0) {
+ w = TMath::Max( 0., fW0 + TMath::Log( eCell / totalFClusterEnergy ));
+ etai=(Double_t)ieta;
+ phii=(Double_t)iphi;
+ if (w > 0.0) {
+ wtot += w;
+ nstat++;
+ //Shower shape
+ dxx += w * etai * etai;
+ xmean+= w * etai;
+ dzz += w * phii * phii;
+ zmean+= w * phii;
+ dxz += w * etai * phii;
+ }
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", eCell, fCluster->E()));
+ }//cell loop
+
+ //Normalize to the weight
+ if (wtot > 0) {
+ xmean /= wtot;
+ zmean /= wtot;
+ }
+ else
+ AliError(Form("Wrong weight %f\n", wtot));
+
+ //Calculate dispersion
+ for (Int_t i=0;i<nclusfCells;i++) {
+ //Get from the absid the supermodule, tower and eta/phi numbers
+ fGeom->GetCellIndex(celllist[i],iSupMod,iTower,iIphi,iIeta);
+ fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
+
+ eCell = fCells->GetCellAmplitude(celllist[i]);
+
+ if (totalFClusterEnergy > 0 && eCell > 0) {
+ w = TMath::Max( 0., fW0 + TMath::Log( eCell / totalFClusterEnergy ));
+ etai=(Double_t)ieta;
+ phii=(Double_t)iphi;
+ if (w > 0.0) d += w*((etai-xmean)*(etai-xmean)+(phii-zmean)*(phii-zmean));
+ }
+ else
+ AliError(Form("Wrong energy %f and/or amplitude %f\n", eCell, fCluster->E()));
+ }// cell loop
+
+ //Normalize to the weigth and set shower shape parameters
+ if (wtot > 0 && nstat > 1) {
+ d /= wtot;
+ dxx /= wtot;
+ dzz /= wtot;
+ dxz /= wtot;
+ dxx -= xmean * xmean;
+ dzz -= zmean * zmean;
+ dxz -= xmean * zmean;
+ m02=(0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ));
+ m20=(0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ));
+ }
+ else{
+ d=0.;
+ m02=0;
+ m20=0;
+ }
+
+ if (d>=0)
+ dispersion=TMath::Sqrt(d);
+ else
+ dispersion=0;
+}
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff