STEER/AliESDZDC.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
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   6  *                                                                        *
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  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
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  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16
  17 //-------------------------------------------------------------------------
  18 //                      Implementation of   Class AliESDZDC
  19 //   This is a class that summarizes the ZDC data
  20 //   for the ESD
  21 //   Origin: Christian Klein-Boesing, CERN, Christian.Klein-Boesing@cern.ch
  22 //-------------------------------------------------------------------------
  23
  24
  25
  26 #include "AliESDZDC.h"
  27
  28 ClassImp(AliESDZDC)
  29
  30 //______________________________________________________________________________
  31 AliESDZDC::AliESDZDC() :
  32   TObject(),
  33   fZDCN1Energy(0),
  34   fZDCP1Energy(0),
  35   fZDCN2Energy(0),
  36   fZDCP2Energy(0),
  37   fZDCEMEnergy(0),
  38   fZDCEMEnergy1(0),
  39   fZDCParticipants(0),
  40   fZDCPartSideA(0),
  41   fZDCPartSideC(0),
  42   fImpactParameter(0),
  43   fImpactParamSideA(0),
  44   fImpactParamSideC(0),
  45   fESDQuality(0)
  46 {
  47   for(Int_t i=0; i<5; i++){
  48     fZN1TowerEnergy[i] = fZN2TowerEnergy[i] = 0.;
  49     fZP1TowerEnergy[i] = fZP2TowerEnergy[i] = 0.;
  50     fZN1TowerEnergyLR[i] = fZN2TowerEnergyLR[i] = 0.;
  51     fZP1TowerEnergyLR[i] = fZP2TowerEnergyLR[i] = 0.;
  52   }
  53   for(Int_t i=0; i<2; i++){
  54     fZNACentrCoord[i] = fZNCCentrCoord[i] = 0.;
  55   }
  56   for(Int_t i=0; i<32; i++) fVMEScaler[i]=0;
  57 }
  58
  59 //______________________________________________________________________________
  60 AliESDZDC::AliESDZDC(const AliESDZDC& zdc) :
  61   TObject(zdc),
  62   fZDCN1Energy(zdc.fZDCN1Energy),
  63   fZDCP1Energy(zdc.fZDCP1Energy),
  64   fZDCN2Energy(zdc.fZDCN2Energy),
  65   fZDCP2Energy(zdc.fZDCP2Energy),
  66   fZDCEMEnergy(zdc.fZDCEMEnergy),
  67   fZDCEMEnergy1(zdc.fZDCEMEnergy1),
  68   fZDCParticipants(zdc.fZDCParticipants),
  69   fZDCPartSideA(zdc.fZDCPartSideA),
  70   fZDCPartSideC(zdc.fZDCPartSideC),
  71   fImpactParameter(zdc.fImpactParameter),
  72   fImpactParamSideA(zdc.fImpactParamSideA),
  73   fImpactParamSideC(zdc.fImpactParamSideC),
  74   fESDQuality(zdc.fESDQuality)
  75 {
  76   // copy constructor
  77   for(Int_t i=0; i<5; i++){
  78      fZN1TowerEnergy[i] = zdc.fZN1TowerEnergy[i];
  79      fZN2TowerEnergy[i] = zdc.fZN2TowerEnergy[i];
  80      fZP1TowerEnergy[i] = zdc.fZP1TowerEnergy[i];
  81      fZP2TowerEnergy[i] = zdc.fZP2TowerEnergy[i];
  82      fZN1TowerEnergyLR[i] = zdc.fZN1TowerEnergyLR[i];
  83      fZN2TowerEnergyLR[i] = zdc.fZN2TowerEnergyLR[i];
  84      fZP1TowerEnergyLR[i] = zdc.fZP1TowerEnergyLR[i];
  85      fZP2TowerEnergyLR[i] = zdc.fZP2TowerEnergyLR[i];
  86   }
  87   for(Int_t i=0; i<2; i++){
  88     fZNACentrCoord[i] = zdc.fZNACentrCoord[i];
  89     fZNCCentrCoord[i] = zdc.fZNCCentrCoord[i];
  90   }
  91   for(Int_t i=0; i<32; i++) fVMEScaler[i] = zdc.fVMEScaler[i];
  92 }
  93
  94 //______________________________________________________________________________
  95 AliESDZDC& AliESDZDC::operator=(const AliESDZDC&zdc)
  96 {
  97   // assigment operator
  98   if(this!=&zdc) {
  99     TObject::operator=(zdc);
 100     fZDCN1Energy = zdc.fZDCN1Energy;
 101     fZDCP1Energy = zdc.fZDCP1Energy;
 102     fZDCN2Energy = zdc.fZDCN2Energy;
 103     fZDCP2Energy = zdc.fZDCP2Energy;
 104     fZDCEMEnergy = zdc.fZDCEMEnergy;
 105     fZDCEMEnergy1 = zdc.fZDCEMEnergy1;
 106     for(Int_t i=0; i<5; i++){
 107        fZN1TowerEnergy[i] = zdc.fZN1TowerEnergy[i];
 108        fZN2TowerEnergy[i] = zdc.fZN2TowerEnergy[i];
 109        fZP1TowerEnergy[i] = zdc.fZP1TowerEnergy[i];
 110        fZP2TowerEnergy[i] = zdc.fZP2TowerEnergy[i];
 111        fZN1TowerEnergyLR[i] = zdc.fZN1TowerEnergyLR[i];
 112        fZN2TowerEnergyLR[i] = zdc.fZN2TowerEnergyLR[i];
 113        fZP1TowerEnergyLR[i] = zdc.fZP1TowerEnergyLR[i];
 114        fZP2TowerEnergyLR[i] = zdc.fZP2TowerEnergyLR[i];
 115     }
 116     //
 117     fZDCParticipants = zdc.fZDCParticipants;
 118     fZDCPartSideA = zdc.fZDCPartSideA;
 119     fZDCPartSideC = zdc.fZDCPartSideC;
 120     fImpactParameter = zdc.fImpactParameter;
 121     fImpactParamSideA = zdc.fImpactParamSideA;
 122     fImpactParamSideC = zdc.fImpactParamSideC;
 123     //
 124     for(Int_t i=0; i<2; i++){
 125          fZNACentrCoord[i] = zdc.fZNACentrCoord[i];
 126          fZNCCentrCoord[i] = zdc.fZNCCentrCoord[i];
 127     }
 128     //
 129     fESDQuality = zdc.fESDQuality;
 130     for(Int_t i=0; i<32; i++) fVMEScaler[i] = zdc.fVMEScaler[i];
 131   }
 132   return *this;
 133 }
 134
 135 //______________________________________________________________________________
 136 void AliESDZDC::Copy(TObject &obj) const {
 137
 138   // this overwrites the virtual TOBject::Copy()
 139   // to allow run time copying without casting
 140   // in AliESDEvent
 141
 142   if(this==&obj)return;
 143   AliESDZDC *robj = dynamic_cast<AliESDZDC*>(&obj);
 144   if(!robj)return; // not an AliESDZDC
 145   *robj = *this;
 146
 147 }
 148
 149
 150 //______________________________________________________________________________
 151 void AliESDZDC::Reset()
 152 {
 153   // reset all data members
 154   fZDCN1Energy=0;
 155   fZDCP1Energy=0;
 156   fZDCN2Energy=0;
 157   fZDCP2Energy=0;
 158   fZDCEMEnergy=0;
 159   fZDCEMEnergy1=0;
 160   for(Int_t i=0; i<5; i++){
 161     fZN1TowerEnergy[i] = fZN2TowerEnergy[i] = 0.;
 162     fZP1TowerEnergy[i] = fZP2TowerEnergy[i] = 0.;
 163     fZN1TowerEnergyLR[i] = fZN2TowerEnergyLR[i] = 0.;
 164     fZP1TowerEnergyLR[i] = fZP2TowerEnergyLR[i] = 0.;
 165   }
 166   fZDCParticipants=0;
 167   fZDCPartSideA=0;
 168   fZDCPartSideC=0;
 169   fImpactParameter=0;
 170   fImpactParamSideA=0;
 171   fImpactParamSideC=0;
 172   for(Int_t i=0; i<2; i++){
 173        fZNACentrCoord[i] = fZNCCentrCoord[i] = 0.;
 174   }
 175   fESDQuality=0;
 176   for(Int_t i=0; i<32; i++) fVMEScaler[i] = 0;
 177 }
 178
 179 //______________________________________________________________________________
 180 void AliESDZDC::Print(const Option_t *) const
 181 {
 182   //  Print ESD for the ZDC
 183   printf("\n \t E_{ZNC} = %f TeV, E_{ZPC} = %f TeV, E_{ZNA} = %f TeV, E_{ZPA} = %f TeV,"
 184   " E_{ZEM} = %f GeV, Npart = %d, b = %1.2f fm\n",
 185   fZDCN1Energy/1000.,fZDCP1Energy/1000.,fZDCN2Energy/1000.,fZDCP2Energy/1000.,
 186   fZDCEMEnergy+fZDCEMEnergy1, fZDCParticipants,fImpactParameter);
 187   //
 188   printf(" ### fVMEScaler: \n");
 189   for(Int_t i=0; i<32; i++) printf("\t datum %d: %d \n",i,fVMEScaler[i]);
 190   printf("\n");
 191 }
 192
 193 //______________________________________________________________________________
 194 Double32_t * AliESDZDC::GetZNCCentroid()
 195 {
 196   // Provide coordinates of centroid over ZN (side C) front face
 197   Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
 198   Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
 199   Float_t numX=0., numY=0., den=0.;
 200   Float_t c, alpha=0.395, w;
 201   //
 202   for(Int_t i=0; i<4; i++){
 203     if(fZN1TowerEnergy[i+1]<0.) fZN1TowerEnergy[i+1]=0.;
 204     w = TMath::Power(fZN1TowerEnergy[i+1], alpha);
 205     numX += x[i]*w;
 206     numY += y[i]*w;
 207     den += w;
 208   }
 209   if(den!=0){
 210     // ATTENTION! Needs to be changed if E_beam(A-A) != 2.76 A TeV !!!!
 211     Float_t nSpecn = fZDCN1Energy/2760.;
 212     c = 1.89358-0.71262/(nSpecn+0.71789);
 213     fZNCCentrCoord[0] = c*numX/den;
 214     fZNCCentrCoord[1] = c*numY/den;
 215   }
 216   return fZNCCentrCoord;
 217 }
 218
 219 //______________________________________________________________________________
 220 Double32_t * AliESDZDC::GetZNACentroid()
 221 {
 222   // Provide coordinates of centroid over ZN (side A) front face
 223   Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
 224   Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
 225   Float_t numX=0., numY=0., den=0.;
 226   Float_t c, alpha=0.395, w;
 227
 228   for(Int_t i=0; i<4; i++){
 229     if(fZN2TowerEnergy[i+1]<0.) fZN2TowerEnergy[i+1]=0.;
 230     w = TMath::Power(fZN2TowerEnergy[i+1], alpha);
 231     numX += x[i]*w;
 232     numY += y[i]*w;
 233     den += w;
 234   }
 235   //
 236   if(den!=0){
 237     // ATTENTION! Needs to be changed if E_beam(A-A) != 2.76 A TeV !!!!
 238     Float_t nSpecn = fZDCN2Energy/2760.;
 239     c = 1.89358-0.71262/(nSpecn+0.71789);
 240     fZNACentrCoord[0] = c*numX/den;
 241     fZNACentrCoord[1] = c*numY/den;
 242   }
 243   return fZNACentrCoord;
 244 }