[u/mrichter/AliRoot.git] / STEER / AliESDZDC.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/


//-------------------------------------------------------------------------
//                      Implementation of   Class AliESDZDC
//   This is a class that summarizes the ZDC data
//   for the ESD   
//   Origin: Christian Klein-Boesing, CERN, Christian.Klein-Boesing@cern.ch 
//-------------------------------------------------------------------------

#include <TMath.h>

#include "AliESDZDC.h"

ClassImp(AliESDZDC)

//______________________________________________________________________________
AliESDZDC::AliESDZDC() :
  TObject(),
  fZDCN1Energy(0),
  fZDCP1Energy(0),
  fZDCN2Energy(0),
  fZDCP2Energy(0),
  fZDCEMEnergy(0),
  fZDCEMEnergy1(0),
  fZDCParticipants(0),
  fZDCPartSideA(0),
  fZDCPartSideC(0),
  fImpactParameter(0),
  fImpactParamSideA(0),
  fImpactParamSideC(0),
  fESDQuality(0)
{
  for(Int_t i=0; i<5; i++){
    fZN1TowerEnergy[i] = fZN2TowerEnergy[i] = 0.;
    fZP1TowerEnergy[i] = fZP2TowerEnergy[i] = 0.;
    fZN1TowerEnergyLR[i] = fZN2TowerEnergyLR[i] = 0.;
    fZP1TowerEnergyLR[i] = fZP2TowerEnergyLR[i] = 0.;
  }
  for(Int_t i=0; i<2; i++){
    fZNACentrCoord[i] = fZNCCentrCoord[i] = 0.;
  }
  for(Int_t i=0; i<32; i++) fVMEScaler[i]=0;
}

//______________________________________________________________________________
AliESDZDC::AliESDZDC(const AliESDZDC& zdc) :
  TObject(zdc),
  fZDCN1Energy(zdc.fZDCN1Energy),
  fZDCP1Energy(zdc.fZDCP1Energy),
  fZDCN2Energy(zdc.fZDCN2Energy),
  fZDCP2Energy(zdc.fZDCP2Energy),
  fZDCEMEnergy(zdc.fZDCEMEnergy),
  fZDCEMEnergy1(zdc.fZDCEMEnergy1),
  fZDCParticipants(zdc.fZDCParticipants),
  fZDCPartSideA(zdc.fZDCPartSideA),
  fZDCPartSideC(zdc.fZDCPartSideC),
  fImpactParameter(zdc.fImpactParameter),
  fImpactParamSideA(zdc.fImpactParamSideA),
  fImpactParamSideC(zdc.fImpactParamSideC),
  fESDQuality(zdc.fESDQuality)
{
  // copy constructor
  for(Int_t i=0; i<5; i++){
     fZN1TowerEnergy[i] = zdc.fZN1TowerEnergy[i];
     fZN2TowerEnergy[i] = zdc.fZN2TowerEnergy[i];
     fZP1TowerEnergy[i] = zdc.fZP1TowerEnergy[i];
     fZP2TowerEnergy[i] = zdc.fZP2TowerEnergy[i];
     fZN1TowerEnergyLR[i] = zdc.fZN1TowerEnergyLR[i];
     fZN2TowerEnergyLR[i] = zdc.fZN2TowerEnergyLR[i];
     fZP1TowerEnergyLR[i] = zdc.fZP1TowerEnergyLR[i];
     fZP2TowerEnergyLR[i] = zdc.fZP2TowerEnergyLR[i];
  }
  for(Int_t i=0; i<2; i++){
    fZNACentrCoord[i] = zdc.fZNACentrCoord[i];
    fZNCCentrCoord[i] = zdc.fZNCCentrCoord[i];
  }
  for(Int_t i=0; i<32; i++) fVMEScaler[i] = zdc.fVMEScaler[i];
}

//______________________________________________________________________________
AliESDZDC& AliESDZDC::operator=(const AliESDZDC&zdc)
{
  // assigment operator
  if(this!=&zdc) {
    TObject::operator=(zdc);
    fZDCN1Energy = zdc.fZDCN1Energy;
    fZDCP1Energy = zdc.fZDCP1Energy;
    fZDCN2Energy = zdc.fZDCN2Energy;
    fZDCP2Energy = zdc.fZDCP2Energy;
    fZDCEMEnergy = zdc.fZDCEMEnergy;
    fZDCEMEnergy1 = zdc.fZDCEMEnergy1;
    for(Int_t i=0; i<5; i++){
       fZN1TowerEnergy[i] = zdc.fZN1TowerEnergy[i];
       fZN2TowerEnergy[i] = zdc.fZN2TowerEnergy[i];
       fZP1TowerEnergy[i] = zdc.fZP1TowerEnergy[i];
       fZP2TowerEnergy[i] = zdc.fZP2TowerEnergy[i];
       fZN1TowerEnergyLR[i] = zdc.fZN1TowerEnergyLR[i];
       fZN2TowerEnergyLR[i] = zdc.fZN2TowerEnergyLR[i];
       fZP1TowerEnergyLR[i] = zdc.fZP1TowerEnergyLR[i];
       fZP2TowerEnergyLR[i] = zdc.fZP2TowerEnergyLR[i];
    }
    //
    fZDCParticipants = zdc.fZDCParticipants;
    fZDCPartSideA = zdc.fZDCPartSideA;
    fZDCPartSideC = zdc.fZDCPartSideC;
    fImpactParameter = zdc.fImpactParameter;
    fImpactParamSideA = zdc.fImpactParamSideA;
    fImpactParamSideC = zdc.fImpactParamSideC;
    //
    for(Int_t i=0; i<2; i++){
         fZNACentrCoord[i] = zdc.fZNACentrCoord[i];
         fZNCCentrCoord[i] = zdc.fZNCCentrCoord[i];
    }
    //
    fESDQuality = zdc.fESDQuality;
    for(Int_t i=0; i<32; i++) fVMEScaler[i] = zdc.fVMEScaler[i];
  } 
  return *this;
}

//______________________________________________________________________________
void AliESDZDC::Copy(TObject &obj) const {
  
  // this overwrites the virtual TOBject::Copy()
  // to allow run time copying without casting
  // in AliESDEvent

  if(this==&obj)return;
  AliESDZDC *robj = dynamic_cast<AliESDZDC*>(&obj);
  if(!robj)return; // not an AliESDZDC
  *robj = *this;

}


//______________________________________________________________________________
void AliESDZDC::Reset()
{
  // reset all data members
  fZDCN1Energy=0;
  fZDCP1Energy=0;
  fZDCN2Energy=0;
  fZDCP2Energy=0;
  fZDCEMEnergy=0;
  fZDCEMEnergy1=0;
  for(Int_t i=0; i<5; i++){
    fZN1TowerEnergy[i] = fZN2TowerEnergy[i] = 0.;
    fZP1TowerEnergy[i] = fZP2TowerEnergy[i] = 0.;
    fZN1TowerEnergyLR[i] = fZN2TowerEnergyLR[i] = 0.;
    fZP1TowerEnergyLR[i] = fZP2TowerEnergyLR[i] = 0.;
  }
  fZDCParticipants=0;  
  fZDCPartSideA=0;  
  fZDCPartSideC=0;  
  fImpactParameter=0;
  fImpactParamSideA=0;
  fImpactParamSideC=0;
  for(Int_t i=0; i<2; i++){
       fZNACentrCoord[i] = fZNCCentrCoord[i] = 0.;
  }
  fESDQuality=0;
  for(Int_t i=0; i<32; i++) fVMEScaler[i] = 0;
}

//______________________________________________________________________________
void AliESDZDC::Print(const Option_t *) const
{
  //  Print ESD for the ZDC
  printf("\n \t E_{ZNC} = %f TeV, E_{ZPC} = %f TeV, E_{ZNA} = %f TeV, E_{ZPA} = %f TeV,"
  " E_{ZEM} = %f GeV, Npart = %d, b = %1.2f fm\n",
  fZDCN1Energy/1000.,fZDCP1Energy/1000.,fZDCN2Energy/1000.,fZDCP2Energy/1000.,
  fZDCEMEnergy+fZDCEMEnergy1, fZDCParticipants,fImpactParameter);
  //
  printf(" ### fVMEScaler: \n");
  for(Int_t i=0; i<32; i++) printf("\t datum %d: %d \n",i,fVMEScaler[i]);
  printf("\n");
}

//______________________________________________________________________________
const Double_t * AliESDZDC::GetZNCCentroidInPbPb(Float_t beamEne) 
{
  // Provide coordinates of centroid over ZN (side C) front face
  const Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
  const Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
  Float_t numX=0., numY=0., den=0.;
  Float_t c, w; 
  const Float_t alpha=0.395;
  //
  for(Int_t i=0; i<4; i++)
    if(fZN1TowerEnergy[i+1]>0.) {
      w = TMath::Power(fZN1TowerEnergy[i+1], alpha);
      numX += x[i]*w;
      numY += y[i]*w;
      den += w;
    }
  if(den!=0){
    Float_t nSpecn = fZDCN1Energy/beamEne;
    c = 1.89358-0.71262/(nSpecn+0.71789);
    fZNCCentrCoord[0] = c*numX/den;
    fZNCCentrCoord[1] = c*numY/den;
  } else {
    fZNCCentrCoord[0] = fZNCCentrCoord[1] = 0;
  }
  return fZNCCentrCoord;
}

//______________________________________________________________________________
const Double_t * AliESDZDC::GetZNACentroidInPbPb(Float_t beamEne) 
{
  // Provide coordinates of centroid over ZN (side A) front face
  const Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
  const Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
  Float_t numX=0., numY=0., den=0.;
  Float_t c, w;
  const Float_t alpha=0.395;

  for(Int_t i=0; i<4; i++)
    if(fZN2TowerEnergy[i+1]>0.) {
      w = TMath::Power(fZN2TowerEnergy[i+1], alpha);
      numX += x[i]*w;
      numY += y[i]*w;
      den += w;
    }
  //
  if(den!=0){
    Float_t nSpecn = fZDCN2Energy/beamEne;
    c = 1.89358-0.71262/(nSpecn+0.71789);
    fZNACentrCoord[0] = c*numX/den;
    fZNACentrCoord[1] = c*numY/den;
  } else {
    fZNACentrCoord[0] = fZNACentrCoord[1] = 0;
  }
  return fZNACentrCoord;
}

//______________________________________________________________________________
const Double_t * AliESDZDC::GetZNCCentroidInpp() 
{
  // Provide coordinates of centroid over ZN (side C) front face
  const Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
  const Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
  Float_t numX=0., numY=0., den=0.;
  const Float_t alpha=0.5;
  Float_t w;
  //
  for(Int_t i=0; i<4; i++)
    if(fZN1TowerEnergy[i+1]>0.) {
      w = TMath::Power(fZN1TowerEnergy[i+1], alpha);
      numX += x[i]*w;
      numY += y[i]*w;
      den += w;
    }

  if(den!=0){
    fZNCCentrCoord[0] = numX/den;
    fZNCCentrCoord[1] = numY/den;
  } else {
    fZNCCentrCoord[0] = fZNCCentrCoord[1] = 0;
  }
  return fZNCCentrCoord;
}

//______________________________________________________________________________
const Double_t * AliESDZDC::GetZNACentroidInpp() 
{
  // Provide coordinates of centroid over ZN (side A) front face
  const Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
  const Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
  Float_t numX=0., numY=0., den=0.;
  const Float_t alpha=0.395;
  Float_t w;

  for(Int_t i=0; i<4; i++)
    if(fZN2TowerEnergy[i+1]>0.) {
      w = TMath::Power(fZN2TowerEnergy[i+1], alpha);
      numX += x[i]*w;
      numY += y[i]*w;
      den += w;
    }
  //
  if(den!=0){
    fZNACentrCoord[0] = numX/den;
    fZNACentrCoord[1] = numY/den;
  } else {
    fZNACentrCoord[0] = fZNACentrCoord[1] = 0;
  }
    
  return fZNACentrCoord;
}
Commit	Line	Data
d5ebf00e	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	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
cb6a0388	24	#include <TMath.h>
d5ebf00e	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),
f6536de8	37	fZDCEMEnergy(0),
f6536de8	38	fZDCEMEnergy1(0),
2b6cdc43	39	fZDCParticipants(0),
5f0ec064	40	fZDCPartSideA(0),
	41	fZDCPartSideC(0),
	42	fImpactParameter(0),
	43	fImpactParamSideA(0),
	44	fImpactParamSideC(0),
	45	fESDQuality(0)
d5ebf00e	46	{
89291556	47	for(Int_t i=0; i<5; i++){
a85132e7	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	}
89291556	53	for(Int_t i=0; i<2; i++){
	54	fZNACentrCoord[i] = fZNCCentrCoord[i] = 0.;
	55	}
54c6a92c	56	for(Int_t i=0; i<32; i++) fVMEScaler[i]=0;
d5ebf00e	57	}
d5ebf00e	58
2b6cdc43	59	//______________________________________________________________________________
d5ebf00e	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),
f6536de8	66	fZDCEMEnergy(zdc.fZDCEMEnergy),
f6536de8	67	fZDCEMEnergy1(zdc.fZDCEMEnergy1),
2b6cdc43	68	fZDCParticipants(zdc.fZDCParticipants),
5f0ec064	69	fZDCPartSideA(zdc.fZDCPartSideA),
	70	fZDCPartSideC(zdc.fZDCPartSideC),
	71	fImpactParameter(zdc.fImpactParameter),
8c755c03	72	fImpactParamSideA(zdc.fImpactParamSideA),
8c755c03	73	fImpactParamSideC(zdc.fImpactParamSideC),
5f0ec064	74	fESDQuality(zdc.fESDQuality)
d5ebf00e	75	{
d5ebf00e	76	// copy constructor
89291556	77	for(Int_t i=0; i<5; i++){
a85132e7	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	}
89291556	87	for(Int_t i=0; i<2; i++){
	88	fZNACentrCoord[i] = zdc.fZNACentrCoord[i];
	89	fZNCCentrCoord[i] = zdc.fZNCCentrCoord[i];
	90	}
54c6a92c	91	for(Int_t i=0; i<32; i++) fVMEScaler[i] = zdc.fVMEScaler[i];
d5ebf00e	92	}
d5ebf00e	93
2b6cdc43	94	//______________________________________________________________________________
d5ebf00e	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;
f6536de8	104	fZDCEMEnergy = zdc.fZDCEMEnergy;
f6536de8	105	fZDCEMEnergy1 = zdc.fZDCEMEnergy1;
a85132e7	106	for(Int_t i=0; i<5; i++){
7b4458a2	107	fZN1TowerEnergy[i] = zdc.fZN1TowerEnergy[i];
7b4458a2	108	fZN2TowerEnergy[i] = zdc.fZN2TowerEnergy[i];
a85132e7	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];
7b4458a2	115	}
5f0ec064	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	//
89291556	124	for(Int_t i=0; i<2; i++){
	125	fZNACentrCoord[i] = zdc.fZNACentrCoord[i];
	126	fZNCCentrCoord[i] = zdc.fZNCCentrCoord[i];
	127	}
5f0ec064	128	//
5f0ec064	129	fESDQuality = zdc.fESDQuality;
54c6a92c	130	for(Int_t i=0; i<32; i++) fVMEScaler[i] = zdc.fVMEScaler[i];
d5ebf00e	131	}
	132	return *this;
	133	}
	134
2b6cdc43	135	//______________________________________________________________________________
732a24fe	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
d5ebf00e	149
	150	//______________________________________________________________________________
	151	void AliESDZDC::Reset()
	152	{
	153	// reset all data members
	154	fZDCN1Energy=0;
	155	fZDCP1Energy=0;
	156	fZDCN2Energy=0;
	157	fZDCP2Energy=0;
f6536de8	158	fZDCEMEnergy=0;
f6536de8	159	fZDCEMEnergy1=0;
89291556	160	for(Int_t i=0; i<5; i++){
a85132e7	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	}
5f0ec064	166	fZDCParticipants=0;
	167	fZDCPartSideA=0;
	168	fZDCPartSideC=0;
	169	fImpactParameter=0;
	170	fImpactParamSideA=0;
	171	fImpactParamSideC=0;
89291556	172	for(Int_t i=0; i<2; i++){
	173	fZNACentrCoord[i] = fZNCCentrCoord[i] = 0.;
	174	}
5f0ec064	175	fESDQuality=0;
54c6a92c	176	for(Int_t i=0; i<32; i++) fVMEScaler[i] = 0;
d5ebf00e	177	}
	178
	179	//______________________________________________________________________________
	180	void AliESDZDC::Print(const Option_t *) const
	181	{
a85132e7	182	// Print ESD for the ZDC
5f0ec064	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);
54c6a92c	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");
d5ebf00e	191	}
d5ebf00e	192
d1d3e36b	193	//______________________________________________________________________________
b19cc8d0	194	const Double_t * AliESDZDC::GetZNCCentroidInPbPb(Float_t beamEne)
d1d3e36b	195	{
d1d3e36b	196	// Provide coordinates of centroid over ZN (side C) front face
b19cc8d0	197	const Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
b19cc8d0	198	const Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
48486c12	199	Float_t numX=0., numY=0., den=0.;
b19cc8d0	200	Float_t c, w;
b19cc8d0	201	const Float_t alpha=0.395;
5f0ec064	202	//
b19cc8d0	203	for(Int_t i=0; i<4; i++)
	204	if(fZN1TowerEnergy[i+1]>0.) {
	205	w = TMath::Power(fZN1TowerEnergy[i+1], alpha);
	206	numX += x[i]*w;
	207	numY += y[i]*w;
	208	den += w;
	209	}
48486c12	210	if(den!=0){
b19cc8d0	211	Float_t nSpecn = fZDCN1Energy/beamEne;
e955aeff	212	c = 1.89358-0.71262/(nSpecn+0.71789);
5f0ec064	213	fZNCCentrCoord[0] = c*numX/den;
5f0ec064	214	fZNCCentrCoord[1] = c*numY/den;
b19cc8d0	215	} else {
b19cc8d0	216	fZNCCentrCoord[0] = fZNCCentrCoord[1] = 0;
d1d3e36b	217	}
89291556	218	return fZNCCentrCoord;
d1d3e36b	219	}
7b4458a2	220
d1d3e36b	221	//______________________________________________________________________________
b19cc8d0	222	const Double_t * AliESDZDC::GetZNACentroidInPbPb(Float_t beamEne)
d1d3e36b	223	{
d1d3e36b	224	// Provide coordinates of centroid over ZN (side A) front face
b19cc8d0	225	const Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
b19cc8d0	226	const Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
48486c12	227	Float_t numX=0., numY=0., den=0.;
b19cc8d0	228	Float_t c, w;
	229	const Float_t alpha=0.395;
	230
	231	for(Int_t i=0; i<4; i++)
	232	if(fZN2TowerEnergy[i+1]>0.) {
	233	w = TMath::Power(fZN2TowerEnergy[i+1], alpha);
	234	numX += x[i]*w;
	235	numY += y[i]*w;
	236	den += w;
	237	}
ce099621	238	//
48486c12	239	if(den!=0){
b19cc8d0	240	Float_t nSpecn = fZDCN2Energy/beamEne;
e955aeff	241	c = 1.89358-0.71262/(nSpecn+0.71789);
5f0ec064	242	fZNACentrCoord[0] = c*numX/den;
5f0ec064	243	fZNACentrCoord[1] = c*numY/den;
b19cc8d0	244	} else {
	245	fZNACentrCoord[0] = fZNACentrCoord[1] = 0;
	246	}
	247	return fZNACentrCoord;
	248	}
	249
	250	//______________________________________________________________________________
	251	const Double_t * AliESDZDC::GetZNCCentroidInpp()
	252	{
	253	// Provide coordinates of centroid over ZN (side C) front face
	254	const Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
	255	const Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
	256	Float_t numX=0., numY=0., den=0.;
	257	const Float_t alpha=0.5;
	258	Float_t w;
	259	//
	260	for(Int_t i=0; i<4; i++)
	261	if(fZN1TowerEnergy[i+1]>0.) {
	262	w = TMath::Power(fZN1TowerEnergy[i+1], alpha);
	263	numX += x[i]*w;
	264	numY += y[i]*w;
	265	den += w;
	266	}
	267
	268	if(den!=0){
	269	fZNCCentrCoord[0] = numX/den;
	270	fZNCCentrCoord[1] = numY/den;
	271	} else {
	272	fZNCCentrCoord[0] = fZNCCentrCoord[1] = 0;
	273	}
	274	return fZNCCentrCoord;
	275	}
	276
	277	//______________________________________________________________________________
	278	const Double_t * AliESDZDC::GetZNACentroidInpp()
	279	{
	280	// Provide coordinates of centroid over ZN (side A) front face
	281	const Float_t x[4] = {-1.75, 1.75, -1.75, 1.75};
	282	const Float_t y[4] = {-1.75, -1.75, 1.75, 1.75};
	283	Float_t numX=0., numY=0., den=0.;
	284	const Float_t alpha=0.395;
	285	Float_t w;
	286
	287	for(Int_t i=0; i<4; i++)
	288	if(fZN2TowerEnergy[i+1]>0.) {
	289	w = TMath::Power(fZN2TowerEnergy[i+1], alpha);
	290	numX += x[i]*w;
	291	numY += y[i]*w;
	292	den += w;
	293	}
	294	//
	295	if(den!=0){
	296	fZNACentrCoord[0] = numX/den;
	297	fZNACentrCoord[1] = numY/den;
	298	} else {
	299	fZNACentrCoord[0] = fZNACentrCoord[1] = 0;
ce099621	300	}
b19cc8d0	301
89291556	302	return fZNACentrCoord;
d1d3e36b	303	}