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Max. angle in mag. field limited to 10deg.
[u/mrichter/AliRoot.git] / RICH / AliRICHTracker.cxx
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db910db9 1#include "AliRICHTracker.h" //class header
2#include "AliRICH.h"
3#include "AliRICHRecon.h"
84093f6f 4#include "AliRICHParam.h"
998b831f 5#include <AliESD.h>
84093f6f 6#include <TGeoManager.h> //EsdQA()
998b831f 7#include <TVector3.h>
84093f6f 8#include <TTree.h> //EsdQA()
9#include <TFile.h> //EsdQA()
10#include <TProfile.h> //EsdQA()
998b831f 11#include "AliRICHHelix.h"
12#include <AliMagF.h>
998b831f 13#include <AliStack.h>
14#include <TParticle.h>
30c60010 15#include <TMath.h>
0fe8fa07 16#include <AliRun.h>
db910db9 17#include <TNtupleD.h> //RecWithStack();
18#include <AliTrackPointArray.h> //GetTrackPoint()
19#include <AliAlignObj.h> //GetTrackPoint()
84093f6f 20#include <TH1F.h> //EsdQA()
21#include <TH2F.h> //EsdQA()
22#include <TCanvas.h> //EsdQA()
998b831f 23ClassImp(AliRICHTracker)
db910db9 24//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
25AliRICHTracker::AliRICHTracker():AliTracker()
998b831f 26{
db910db9 27// AliRICHTracker is created from AliReconstraction::Run() which invokes AliReconstraction::CreateTrackers()
28// which in turn invokes AliRICHReconstructor::CreateTracker().
29// Note that this is done just once per session before AliReconstruction::Run() goes to events loop.
30 AliRICHParam::Instance()->CdbRead(0,0);
31 for(Int_t i=0;i<5;i++)fErrPar[i]=0;
32}
33//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
34Bool_t AliRICHTracker::GetTrackPoint(Int_t idx, AliTrackPoint& point) const
30c60010 35{
db910db9 36// Interface callback methode invoked from AliReconstruction::WriteAlignmentData() to get position of MIP cluster in MARS associated to a current track.
37// MIP cluster is reffered by index which is stored in AliESDtrack ???????
38// Arguments: idx- cluster index which is stored by RICH in AliESDtrack
39// point- reference to the object where to store the point
40// Returns: status of operation if FALSE then AliReconstruction::WriteAlignmentData() do not store this point to array of points for current track.
41 if(idx<0) return kFALSE; //no MIP cluster assigned to this track in PropagateBack()
42 Int_t iCham=idx/1000000;
43 Int_t iClu=idx%1000000;
44 point.SetVolumeID(AliAlignObj::LayerToVolUID(AliAlignObj::kRICH,iCham-1));//layer and chamber number
45 AliRICH *pRich=((AliRICH*)gAlice->GetDetector("RICH"));
46 AliRICHCluster *pClu=(AliRICHCluster*)pRich->Clus(iCham)->UncheckedAt(iClu);//get pointer to cluster
47 TVector3 mars=AliRICHParam::Instance()->Lors2Mars(iCham,pClu->X(),pClu->Y());
48 point.SetXYZ(mars.X(),mars.Y(),mars.Z());
49 return kTRUE;
50}
51//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
52Int_t AliRICHTracker::LoadClusters(TTree *pCluTree)
53{
54// Interface callback methode invoked from AliReconstruction::RunTracking() to load RICH clusters for RICH
55// Arguments: pCluTree- pointer to clusters tree got by AliRICHLoader::LoadRecPoints("read") then AliRICHLoader::TreeR()
56// Returns: error code (currently ignored in AliReconstruction::RunTraking())
57 AliDebug(1,"Start."); pCluTree->GetEntry(0); AliDebug(1,"Stop."); return 0;
58}
59//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
60Int_t AliRICHTracker::PropagateBack(AliESD *pESD)
61{
62// Interface callback methode invoked by AliRecontruction::RunTracking() during tracking after TOF. It's done just once per event
63// Arguments: pESD - pointer to Event Summary Data class instance which contains a list of tracks
64// Returns: error code, 0 if no errors
9a221675 65 Int_t iNtracks=pESD->GetNumberOfTracks(); AliDebug(1,Form("Start with %i tracks",iNtracks));
db910db9 66 AliRICH *pRich=((AliRICH*)gAlice->GetDetector("RICH"));
67 AliRICHRecon recon;
9a221675 68 Int_t nphots =0;
db910db9 69
70 for(Int_t iTrk=0;iTrk<iNtracks;iTrk++){//ESD tracks loop
9a221675 71 AliESDtrack *pTrk = pESD->GetTrack(iTrk);// get next reconstructed track
e1e6896f 72 Double_t mom[3], pos[3];
9a221675 73 pTrk->GetPxPyPz(mom); TVector3 mom3(mom[0],mom[1],mom[2]);
74 pTrk->GetXYZ(pos); TVector3 pos3(pos[0],pos[1],pos[2]);
75 AliRICHHelix helix(pos3,mom3,(Int_t)pTrk->GetSign(),-0.1*GetBz()); //construct helix out of track running parameters
2a92c3fe 76 //Printf(" magnetic field %f charged %f\n",GetBz(),pTrack->GetSign()); helix.Print("Track");
db910db9 77 Int_t iChamber=helix.RichIntersect(AliRICHParam::Instance());
78 if(!iChamber) continue; //no intersection with chambers, ignore this track go after the next one
79
80 //find MIP cluster candidate (closest to track intersection point cluster with large enough QDC)
9a221675 81 Double_t dR=9999, dX=9999, dY=9999; //distance between track-PC intersection point and current cluster
82 Double_t mipDr=9999,mipDx=9999,mipDy=9999,mipX=9999,mipY=9999; Int_t mipQ=0; //nearest cluster parameters
83 Int_t iMipId=-1; //index of this nearest cluster
84 for(Int_t iClu=0;iClu<pRich->Clus(iChamber)->GetEntries();iClu++){ //clusters loop for intersected chamber
85 AliRICHCluster *pClu=(AliRICHCluster*)pRich->Clus(iChamber)->UncheckedAt(iClu); //get pointer to current cluster
86 if(pClu->Q()<AliRICHParam::QthMIP()) continue; //to low QDC, go after another one
87 pClu->DistXY(helix.PosPc(),dX,dY); dR=TMath::Sqrt(dX*dX+dY*dY); //get distance for current cluster
88 if(dR<mipDr){iMipId=iClu; mipDr=dR; mipDx=dX; mipDy=dY; mipX=pClu->X(); mipY=pClu->Y(); mipQ=pClu->Q();} //current cluster is closer, overwrite data for min cluster
a25b3368 89 }//clusters loop for intersected chamber
01c81d9d 90
9a221675 91 pTrk->SetRICHthetaPhi(helix.Ploc().Theta(),helix.Ploc().Phi()); //store track impact angles with respect to RICH planes
92 pTrk->SetRICHdxdy(mipDx,mipDy); //distance between track-PC intersection and closest cluster with Qdc>100
93 pTrk->SetRICHmipXY(mipX,mipY); //position of that closest cluster with Qdc>100
94 pTrk->SetRICHnclusters(1000000*mipQ); //charge of that closest cluster with Qdc>100
d3eb6079 95
9a221675 96 if(iMipId==-1) {pTrk->SetRICHsignal(kMipQdcCut); continue;} //no cluster with enough QDC found
97 if(mipDr>AliRICHParam::DmatchMIP()) {pTrk->SetRICHsignal(kMipDistCut); continue;} //closest cluster with enough carge is still too far
db910db9 98
9a221675 99 pTrk->SetRICHcluster(iMipId+1000000*iChamber); //set mip cluster index
100 pTrk->SetRICHsignal(recon.ThetaCerenkov(&helix,pRich->Clus(iChamber),nphots));//search for mean Cerenkov angle for this track
101 pTrk->SetRICHnclusters(1000000*mipQ+nphots); //on return nphots is number of photon clusters accepted in reconstruction
102 pTrk->SetRICHchi2(recon.GetRingSigma2());
fab9e039 103
db910db9 104 AliDebug(1,Form("Ch=%i PC Intersection=(%5.2f,%5.2f) cm MIP cluster dist=(%5.2f,%5.2f)=%5.2f cm ThetaCkov=%f",
9a221675 105 iChamber,helix.PosPc().X(),helix.PosPc().Y(), mipDx,mipDy,mipDr, pTrk->GetRICHsignal()));
db910db9 106
107//here comes PID calculations
84093f6f 108// CalcProb(pTrack->GetRICHsignal(),pTrack->GetP(),sigmaPID,richPID);
db910db9 109 }//ESD tracks loop
110 AliDebug(1,"Stop pattern recognition");
111 return 0; // error code: 0=no error;
112}//PropagateBack()
113//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1cb5a97c 114void AliRICHTracker::RecWithStack(TNtupleD *hn)
30c60010 115{
db910db9 116// Reconstruction for particles from STACK. This methode is to be used for RICH standalone when no other detectors are switched on, so normal tracking is not available.
117// Arguments: hn- output ntuple where to store all variables
118// Returns: none
d3eb6079 119 AliDebug(1,"Start.");
30c60010 120 AliRICH *pRich=((AliRICH*)gAlice->GetDetector("RICH"));
121
1cb5a97c 122// pRich->GetLoader()->GetRunLoader()->LoadHeader();
d3eb6079 123 if(!pRich->GetLoader()->GetRunLoader()->TreeK()) pRich->GetLoader()->GetRunLoader()->LoadKinematics();
30c60010 124 AliStack *pStack = pRich->GetLoader()->GetRunLoader()->Stack();
39853df5 125 if(!pStack) {AliDebug(1,Form("No STACK found in AliRoot"));return;}
30c60010 126 Int_t iNtracks=pStack->GetNtrack();
1cb5a97c 127 AliDebug(1,Form(" Start reconstruction with %i track(s) from Stack",iNtracks));
128
ab92fbe6 129 Double_t hnvec[20];
1cb5a97c 130
30c60010 131 Double_t b=GetFieldMap()->SolenoidField()/10;// magnetic field in Tesla
132 AliDebug(1,Form("Start with simulated %i tracks in %f Tesla field",iNtracks,b));
133 TVector3 x0(0,0,0); TVector3 p0(0,0,0);//tmp storage for AliRICHHelix
134
135
1cb5a97c 136 if(pRich->GetLoader()->LoadRecPoints()) {AliDebug(1,Form("No clusters found in RICH"));return;}
137 pRich->GetLoader()->TreeR()->GetEntry(0);
138
db910db9 139 AliRICHRecon recon;
a25b3368 140 for(Int_t iTrackN=0;iTrackN<iNtracks;iTrackN++){//stack particles loop
30c60010 141 TParticle *pParticle = pStack->Particle(iTrackN);
39853df5 142 if(!pParticle) {AliDebug(1,Form("Not a valid TParticle pointer. Track skipped"));continue;}
143 AliDebug(1,Form(" PDG code : %i",pParticle->GetPdgCode()));
ab92fbe6 144//
145// problem of PDG code of some extra particles to be solved!!!!!!!!!
146//
147// found problem! Look in TRD directory : codes from Fluka are :
148//
149// if ((pdg_code == 10010020) ||
150// (pdg_code == 10010030) ||
151// (pdg_code == 50000050) ||
152// (pdg_code == 50000051) ||
153// (pdg_code == 10020040)) {
154//
155 if(pParticle->GetPdgCode()>=50000050||pParticle->GetPdgCode()==0||pParticle->GetPdgCode()>10000) {AliDebug(1,Form("A photon as track... Track skipped"));continue;}
1e066c96 156 if(!pParticle->GetPDG()) continue;
ab92fbe6 157//
158// to be updated for us!!
159//
9f873529 160 AliDebug(1,Form("Track %i is a %s with charge %i and momentum %f",
161 iTrackN,pParticle->GetPDG()->GetName(),Int_t(pParticle->GetPDG()->Charge()),pParticle->P()));
162// if(pParticle->GetMother(0)!=-1) continue; //consider only primaries
163 if(pParticle->GetPDG()->Charge()==0||TMath::Abs(Int_t(pParticle->GetPDG()->Charge()))!=3) continue; //to avoid photons from stack...
1cb5a97c 164 hnvec[0]=pParticle->P();
165 hnvec[1]=pParticle->GetPDG()->Charge();
db910db9 166
167 p0.SetMagThetaPhi(pParticle->P(),pParticle->Theta(),pParticle->Phi()); x0.SetXYZ(pParticle->Vx(),pParticle->Vy(),pParticle->Vz());
9f873529 168 AliRICHHelix helix(x0,p0,TMath::Sign(1,(Int_t)pParticle->GetPDG()->Charge()),b);
db910db9 169 Int_t iChamber=helix.RichIntersect(AliRICHParam::Instance());
170 if(!iChamber) continue;// no intersection with RICH found
171
ef210ba6 172 hnvec[2]=helix.Ploc().Theta();
173 hnvec[3]=helix.Ploc().Phi();
1cb5a97c 174 hnvec[4]=helix.PosPc().X();
175 hnvec[5]=helix.PosPc().Y();
db910db9 176
177 Double_t dX,dY,dR,dRmip=9999; //min distance between clusters and track position on PC
0fe8fa07 178 Int_t iMipId=-1; //index of that min distance cluster
db910db9 179 for(Int_t iClu=0;iClu<pRich->Clus(iChamber)->GetEntries();iClu++){//clusters loop for intersected chamber
180 AliRICHCluster *pClu=(AliRICHCluster*)pRich->Clus(iChamber)->UncheckedAt(iClu);//get pointer to current cluster
181 pClu->DistXY(helix.PosPc(),dX,dY); dR=TMath::Sqrt(dX*dX+dY*dY);//ditance between current cluster and helix intersection with PC
182 if(dR<dRmip){dRmip=dR; hnvec[6]=pClu->X();hnvec[7]=pClu->Y();hnvec[8]=pClu->Q();
183 iMipId=1000000*iChamber+iClu;}//find cluster nearest to the track
30c60010 184
a25b3368 185 }//clusters loop for intersected chamber
30c60010 186
db910db9 187
188 hnvec[9]=recon.ThetaCerenkov(&helix,pRich->Clus(iChamber),iMipId); //search for mean Cerenkov angle for this track
189 hnvec[10]=iMipId;//on return from ThetaCerenkov() contains number of photon candidates accepted
1cb5a97c 190 hnvec[11]=(Double_t)iMipId;
ab92fbe6 191 hnvec[12]=(Double_t)iChamber;
192 hnvec[13]=(Double_t)pParticle->GetPdgCode();
1cb5a97c 193 if(hn) hn->Fill(hnvec);
db910db9 194 AliDebug(1,Form("FINAL Theta Cerenkov=%f",hnvec[9]));
a25b3368 195 }//stack particles loop
1cb5a97c 196
39853df5 197 pRich->GetLoader()->UnloadRecPoints();
30c60010 198 AliDebug(1,"Stop.");
a25b3368 199}//RecWithStack
db910db9 200//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
84093f6f 201void AliRICHTracker::EsdQA(Bool_t isPrint)
30c60010 202{
9a221675 203// Reads ESD file and print out or plot some information for QA
84093f6f 204// Arguments: isPrint is a flag to choose between printing (isPrint = kTRUE) and plotting (isPrint = kFALSE)
2a92c3fe 205// Returns: none
206
207 TFile *pFile=TFile::Open("AliESDs.root","read"); if(!pFile) {Printf("ERROR: AliESDs.root does not exist!");return;}
208 TTree *pTr=(TTree*)pFile->Get("esdTree"); if(!pTr) {Printf("ERROR: AliESDs.root, no ESD tree inside!");return;}
209 AliESD *pEsd=new AliESD; pTr->SetBranchAddress("ESD", &pEsd);
db910db9 210
9a221675 211 TH1D *pProbEl=0,*pProbMu=0,*pProbPi=0,*pProbKa=0,*pProbPr=0,*pMom=0,*pMipQ=0;
212 TH2F *pThP=0,*pDxDy=0;
213 TProfile *pChiTh=0;
84093f6f 214 if(!isPrint){
215 TH1::AddDirectory(kFALSE);
9a221675 216 pProbEl=new TH1D("RiProbE" ,"Prob e" ,101 ,0 ,1.05); pProbEl->SetLineColor(kGreen);
217 pProbPi=new TH1D("RiProbPi","Prob #pi" ,101 ,0 ,1.05); pProbPi->SetLineColor(kRed);
218 pProbMu=new TH1D("RiProbMu","Prob #mu" ,101 ,0 ,1.05); pProbMu->SetLineColor(kBlue);
219 pProbKa=new TH1D("RiProbK" ,"Prob K" ,101 ,0 ,1.05);
220 pProbPr=new TH1D("RiProbP" ,"Prob p" ,101 ,0 ,1.05);
221 pMom =new TH1D("pMom" ,"Track P, GeV" ,200 ,0 ,20 );
222 pMipQ =new TH1D("RiMipQ" ,"Mip Q, ADC" ,2000 ,0 ,4000);
223 pThP =new TH2F("RiThP" ,"#theta_{Ckov} radian;P GeV" ,65 ,-0.5,6.0,75,0,0.75); pThP->SetStats(0);
224 pDxDy =new TH2F("RiDxDy" ,"distance between mip and track;cm",300,-2.5,2.5, 300,-2.5,2.5);
225 pChiTh =new TProfile("RiChiTh","#chi^{2};#theta_{C}" ,80 ,0,0.8 , -2,2);
84093f6f 226 }
227
9a221675 228 Int_t iEvtCnt=0,iTrkCnt=0,iGoodCnt=0; Float_t bz=0;
229 for(Int_t iEvt=0;iEvt<pTr->GetEntries();iEvt++){//ESD events loop
230 pTr->GetEvent(iEvt); iEvtCnt++; if(isPrint) Printf("");
231 bz=pEsd->GetMagneticField()/10.;
232 for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){//ESD tracks loop
233 AliESDtrack *pTrk=pEsd->GetTrack(iTrk); iTrkCnt++; //get next reconstructed track and increment total tracks counter
234
235 Float_t mom =pTrk->GetP(); //track momentum
236 Double_t sign =pTrk->GetSign(); //track sign
237 Float_t ckov =pTrk->GetRICHsignal(); //Theta ckov for this track, rad
238 Float_t chi2 =pTrk->GetRICHchi2(); //Theta ckov error for this track, rad^2
239 Int_t qdc =pTrk->GetRICHnclusters()/1000000; //Mip candidate charge, qdc
240 Int_t nphot =pTrk->GetRICHnclusters()%1000000; //number of photon candidates
241 Float_t dx,dy; pTrk->GetRICHdxdy(dx,dy); //distance between mip position and track instersection
242 Float_t theta,phi; pTrk->GetRICHthetaPhi(theta,phi); //track inclination angles in LORS
243 Double_t pid[5]; pTrk->GetRICHpid(pid); //pid vector
244
245 if(ckov>0) iGoodCnt++;
84093f6f 246 if(isPrint){
9a221675 247 TString comment;
248 if(ckov>0) comment="OK";
249 else if(ckov==kMipQdcCut) comment="small QDC";
250 else if(ckov==kMipDistCut) comment="mip too far";
251 else if(ckov==-1) comment="no intersection";
252 Printf("Tr=%2i Q=%4.1f P=%.3f R=%4.2f Th=%6.3f MipQ= %4i Nph=%2i" " rad Prob : e=%.4f mu=%.4f pi=%.4f K=%.4f p=%.4f %s" ,
253 iTrk,sign,mom,TMath::Sqrt(dx*dx+dy*dy),ckov,qdc,nphot, pid[0],pid[1],pid[2],pid[3],pid[4], comment.Data());
84093f6f 254 }else{//collect hists
9a221675 255 pMom->Fill(mom);
256 pMipQ->Fill(qdc);
257 pDxDy->Fill(dx,dy);
258 pThP->Fill(mom,ckov);
259 pChiTh->Fill(ckov,chi2);
260 pProbEl->Fill(pid[0]);
261 pProbMu->Fill(pid[1]);
262 pProbPi->Fill(pid[2]);
263 pProbKa->Fill(pid[3]);
264 pProbPr->Fill(pid[4]);
84093f6f 265 }//if plot
db910db9 266 }//ESD tracks loop
267 }//ESD events loop
2a92c3fe 268 delete pEsd; pFile->Close();//close AliESDs.root
9a221675 269
270 TString summary=Form("Events: %i Tracks %i Good RICH: %i Mag Fld %.2f Tesla",iEvtCnt,iTrkCnt,iGoodCnt,bz);
271 if(isPrint){
272 Printf(summary.Data());
273 }else{
274 TCanvas *pC=new TCanvas("c",summary.Data()); pC->Divide(2,2);
275 TF1 *pPion = new TF1("RITheor","acos(sqrt(x*x+[0]*[0])/(x*[1]))",1.2,6); pPion->SetLineWidth(1);
68cc5666 276 pPion->SetParameter(1,1.292); //ref idx
277 AliPID ppp; pPion->SetLineColor(kRed); pPion->SetParameter(0,AliPID::ParticleMass(AliPID::kPion)); //mass
278 TF1 *pKaon = (TF1*)pPion->Clone(); pKaon->SetLineColor(kGreen); pKaon->SetParameter(0,AliPID::ParticleMass(AliPID::kKaon));
279 TF1 *pProt = (TF1*)pPion->Clone(); pProt->SetLineColor(kBlue); pProt->SetParameter(0,AliPID::ParticleMass(AliPID::kProton));
84093f6f 280
9a221675 281 pC->cd(1); pDxDy->Draw(); //distance between mip and track intersection
282 pC->cd(2); pMipQ->Draw();
68cc5666 283 pC->cd(3); pThP->Draw(); pPion->Draw("same"); pKaon->Draw("same"); pProt->Draw("same"); //Theta Ckov versus p + theoretical curves
284 pC->cd(4); pChiTh->Draw(); //Theta Ckov error versus theta Ckov
84093f6f 285
9a221675 286 TCanvas *pC2=new TCanvas("c2",summary.Data()); pC2->Divide(2,2);
84093f6f 287 pC2->cd(1); pProbPi->Draw(); pProbMu->Draw("same"); pProbEl->Draw("same");
288 pC2->cd(2); pProbKa->Draw();
289 pC2->cd(3); pProbPr->Draw();
68cc5666 290 pC2->cd(4); pMom->Draw();
84093f6f 291 }
9a221675 292}//EsdQA()
2a92c3fe 293//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
294void AliRICHTracker::MatrixPrint(Double_t probCut)
295{
296// Reads a set of 3 ESD files from current directory and prints out the matrix of probabilities to pion kaon or proton completely blindly withou nay assumption on the contents of files.
297// Normally it implies that those 3 ESDs contain only particles of the same sort namly pions, kaons and protons in that order.
298// Arguments: probCut - cut on probability
299// Returns: none
300 for(Int_t iFile=0;iFile<3;iFile++){
301 TFile *pFile=TFile::Open(Form("Esd%1i.root",iFile+1),"read"); if(!pFile) {Printf("ERROR: Esd%1i.root does not exist!",iFile+1);return;}
302 TTree *pTr=(TTree*)pFile->Get("esdTree"); if(!pTr) {Printf("ERROR: Esd%1i.root, no ESD tree inside!",iFile+1);return;}
303 AliESD *pEsd=new AliESD; pTr->SetBranchAddress("ESD", &pEsd);
304 Int_t iProtCnt=0,iKaonCnt=0,iPionCnt=0,iUnreconCnt=0,iTrkCnt=0; //counters
305
306 for(Int_t iEvt=0;iEvt<pTr->GetEntries();iEvt++){//ESD events loop
307 pTr->GetEvent(iEvt);
308 iTrkCnt+=pEsd->GetNumberOfTracks();
309 for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){//ESD tracks loop
310 AliESDtrack *pTrack = pEsd->GetTrack(iTrk);// get next reconstructed track
2714766e 311 Float_t dx,dy; pTrack->GetRICHdxdy(dx,dy);
312 Float_t theta,phi; pTrack->GetRICHthetaPhi(theta,phi);
2a92c3fe 313 Double_t prob[5]; pTrack->GetRICHpid(prob);
314 if(pTrack->GetRICHsignal()>0){
315 if(prob[4]>probCut) iProtCnt++;
316 if(prob[3]>probCut) iKaonCnt++;
317 if((prob[0]+prob[1]+prob[2])>probCut) iPionCnt++;
318 } else
319 iUnreconCnt++;
320 }//ESD tracks loop
321
322 }//ESD events loop
323 Printf("Bz=%5.2f Events=%i Total tracks=%i No recognized tracks=%i Pion=%i Kaon=%i Proton=%i ProbCut=%.2f",
324 0.1*pEsd->GetMagneticField(),pTr->GetEntries(),iTrkCnt,iUnreconCnt,iPionCnt,iKaonCnt,iProtCnt,probCut);
325 delete pEsd; pFile->Close();//close AliESDs.root
326 }//files loop
db910db9 327}
328//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++