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db910db9 | 1 | #include "AliRICHTracker.h" //class header |
2 | #include "AliRICH.h" | |
3 | #include "AliRICHRecon.h" | |
998b831f | 4 | #include <AliESD.h> |
5 | #include <TVector3.h> | |
db910db9 | 6 | #include <TTree.h> //EsdPrint() |
7 | #include <TFile.h> //EsdPrint() | |
998b831f | 8 | #include "AliRICHHelix.h" |
9 | #include <AliMagF.h> | |
998b831f | 10 | #include <AliStack.h> |
11 | #include <TParticle.h> | |
30c60010 | 12 | #include <TMath.h> |
0fe8fa07 | 13 | #include <AliRun.h> |
db910db9 | 14 | #include <TNtupleD.h> //RecWithStack(); |
15 | #include <AliTrackPointArray.h> //GetTrackPoint() | |
16 | #include <AliAlignObj.h> //GetTrackPoint() | |
998b831f | 17 | ClassImp(AliRICHTracker) |
db910db9 | 18 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
19 | AliRICHTracker::AliRICHTracker():AliTracker() | |
998b831f | 20 | { |
db910db9 | 21 | // AliRICHTracker is created from AliReconstraction::Run() which invokes AliReconstraction::CreateTrackers() |
22 | // which in turn invokes AliRICHReconstructor::CreateTracker(). | |
23 | // Note that this is done just once per session before AliReconstruction::Run() goes to events loop. | |
24 | AliRICHParam::Instance()->CdbRead(0,0); | |
25 | for(Int_t i=0;i<5;i++)fErrPar[i]=0; | |
26 | } | |
27 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
28 | Bool_t AliRICHTracker::GetTrackPoint(Int_t idx, AliTrackPoint& point) const | |
30c60010 | 29 | { |
db910db9 | 30 | // Interface callback methode invoked from AliReconstruction::WriteAlignmentData() to get position of MIP cluster in MARS associated to a current track. |
31 | // MIP cluster is reffered by index which is stored in AliESDtrack ??????? | |
32 | // Arguments: idx- cluster index which is stored by RICH in AliESDtrack | |
33 | // point- reference to the object where to store the point | |
34 | // Returns: status of operation if FALSE then AliReconstruction::WriteAlignmentData() do not store this point to array of points for current track. | |
35 | if(idx<0) return kFALSE; //no MIP cluster assigned to this track in PropagateBack() | |
36 | Int_t iCham=idx/1000000; | |
37 | Int_t iClu=idx%1000000; | |
38 | point.SetVolumeID(AliAlignObj::LayerToVolUID(AliAlignObj::kRICH,iCham-1));//layer and chamber number | |
39 | AliRICH *pRich=((AliRICH*)gAlice->GetDetector("RICH")); | |
40 | AliRICHCluster *pClu=(AliRICHCluster*)pRich->Clus(iCham)->UncheckedAt(iClu);//get pointer to cluster | |
41 | TVector3 mars=AliRICHParam::Instance()->Lors2Mars(iCham,pClu->X(),pClu->Y()); | |
42 | point.SetXYZ(mars.X(),mars.Y(),mars.Z()); | |
43 | return kTRUE; | |
44 | } | |
45 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
46 | Int_t AliRICHTracker::LoadClusters(TTree *pCluTree) | |
47 | { | |
48 | // Interface callback methode invoked from AliReconstruction::RunTracking() to load RICH clusters for RICH | |
49 | // Arguments: pCluTree- pointer to clusters tree got by AliRICHLoader::LoadRecPoints("read") then AliRICHLoader::TreeR() | |
50 | // Returns: error code (currently ignored in AliReconstruction::RunTraking()) | |
51 | AliDebug(1,"Start."); pCluTree->GetEntry(0); AliDebug(1,"Stop."); return 0; | |
52 | } | |
53 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
54 | Int_t AliRICHTracker::PropagateBack(AliESD *pESD) | |
55 | { | |
56 | // Interface callback methode invoked by AliRecontruction::RunTracking() during tracking after TOF. It's done just once per event | |
57 | // Arguments: pESD - pointer to Event Summary Data class instance which contains a list of tracks | |
58 | // Returns: error code, 0 if no errors | |
59 | Int_t iNtracks=pESD->GetNumberOfTracks(); | |
60 | AliDebug(1,Form("Start with %i tracks",iNtracks)); | |
61 | AliRICH *pRich=((AliRICH*)gAlice->GetDetector("RICH")); | |
62 | AliRICHRecon recon; | |
cb801d41 | 63 | AliPID pid; // needed to retrive all the PID info |
db910db9 | 64 | |
65 | for(Int_t iTrk=0;iTrk<iNtracks;iTrk++){//ESD tracks loop | |
66 | AliESDtrack *pTrack = pESD->GetTrack(iTrk);// get next reconstructed track | |
e1e6896f | 67 | Double_t mom[3], pos[3]; |
68 | pTrack->GetPxPyPz(mom); TVector3 mom3(mom[0],mom[1],mom[2]); | |
69 | pTrack->GetXYZ(pos); TVector3 pos3(pos[0],pos[1],pos[2]); | |
70 | AliRICHHelix helix(pos3,mom3,(Int_t)pTrack->GetSign(),-0.1*GetBz()); //construct helix out of track running parameters | |
2a92c3fe | 71 | //Printf(" magnetic field %f charged %f\n",GetBz(),pTrack->GetSign()); helix.Print("Track"); |
db910db9 | 72 | Int_t iChamber=helix.RichIntersect(AliRICHParam::Instance()); |
73 | if(!iChamber) continue; //no intersection with chambers, ignore this track go after the next one | |
74 | ||
75 | //find MIP cluster candidate (closest to track intersection point cluster with large enough QDC) | |
2714766e | 76 | Double_t dR=9999, dX=9999, dY=9999; //distance between track-PC intersection point and current cluster |
77 | Double_t mipDr=9999,mipDx=9999,mipDy=9999,mipX=9999,mipY=9999; //nearest cluster parameters | |
db910db9 | 78 | Int_t iMipId=-1; //index of this nearest cluster |
79 | for(Int_t iClu=0;iClu<pRich->Clus(iChamber)->GetEntries();iClu++){//clusters loop for intersected chamber | |
80 | AliRICHCluster *pClu=(AliRICHCluster*)pRich->Clus(iChamber)->UncheckedAt(iClu);//get pointer to current cluster | |
81 | if(pClu->Q()<AliRICHParam::QthMIP()) continue; //to low QDC, go after another one | |
82 | pClu->DistXY(helix.PosPc(),dX,dY); dR=TMath::Sqrt(dX*dX+dY*dY); //get distance for current cluster | |
2714766e | 83 | if(dR<mipDr){iMipId=iClu; mipDr=dR; mipDx=dX; mipDy=dY; mipX=pClu->X(); mipY=pClu->Y();} //current cluster is closer, overwrite data for min cluster |
a25b3368 | 84 | }//clusters loop for intersected chamber |
01c81d9d | 85 | |
db910db9 | 86 | pTrack->SetRICHthetaPhi(helix.Ploc().Theta(),helix.Ploc().Phi()); //store track impact angles with respect to RICH planes |
2714766e | 87 | pTrack->SetRICHdxdy(mipDx,mipDy); //distance between track-PC intersection and closest cluster with Qdc>100 |
88 | pTrack->SetRICHmipXY(mipX,mipY); //position of that closest cluster with Qdc>100 | |
d3eb6079 | 89 | |
db910db9 | 90 | if(iMipId==-1) {pTrack->SetRICHsignal(kMipQdcCut); continue;} //no cluster with enough QDC found |
2714766e | 91 | if(mipDr>AliRICHParam::DmatchMIP()) {pTrack->SetRICHsignal(kMipDistCut); continue;} //closest cluster with enough carge is still too far |
db910db9 | 92 | |
93 | pTrack->SetRICHcluster(iMipId+1000000*iChamber); //set mip cluster index | |
94 | pTrack->SetRICHsignal(recon.ThetaCerenkov(&helix,pRich->Clus(iChamber),iMipId));//search for mean Cerenkov angle for this track | |
95 | pTrack->SetRICHnclusters(iMipId); //on return iMipId is number of photon clusters accepted in reconstruction | |
fab9e039 | 96 | |
db910db9 | 97 | AliDebug(1,Form("Ch=%i PC Intersection=(%5.2f,%5.2f) cm MIP cluster dist=(%5.2f,%5.2f)=%5.2f cm ThetaCkov=%f", |
2714766e | 98 | iChamber,helix.PosPc().X(),helix.PosPc().Y(), mipDx,mipDy,mipDr, pTrack->GetRICHsignal())); |
db910db9 | 99 | |
100 | //here comes PID calculations | |
101624cd | 101 | if(pTrack->GetRICHsignal()>0) { |
102 | AliDebug(1,Form("Start to assign the probabilities")); | |
cb801d41 | 103 | Double_t sigmaPID[AliPID::kSPECIES]; Double_t richPID[AliPID::kSPECIES]; |
104 | for (Int_t iPid=0;iPid<AliPID::kSPECIES;iPid++){//PID loop | |
105 | sigmaPID[iPid] = 0; fErrPar[iPid] = 0; | |
106 | for(Int_t iCkov=0;iCkov<pRich->Clus(iChamber)->GetEntries();iCkov++){//Ckov candidates loop ????????????? somehting fomr AliRICHRecon must be | |
107 | recon.SetPhotonIndex(iCkov); | |
101624cd | 108 | if(recon.GetPhotonFlag() == 2) { |
cb801d41 | 109 | Double_t thetaCkov=0.6; //?????????????????? |
110 | Double_t phiCkov=0.6; //?????????????????? | |
111 | Double_t thetaTrk=recon.GetTrackTheta(); | |
112 | Double_t phiTrk=(recon.GetPhiPoint()-recon.GetTrackPhi()); | |
113 | Double_t beta =pTrack->GetP()/TMath::Sqrt((pTrack->GetP()*pTrack->GetP()+pid.ParticleMass(iPid)*pid.ParticleMass(iPid))); | |
114 | Double_t sigma2 = AliRICHParam::SigmaSinglePhotonFormula(thetaCkov,phiCkov,thetaTrk,phiTrk,beta); | |
115 | if(sigma2>0) sigmaPID[iPid] += 1/sigma2; | |
101624cd | 116 | } |
cb801d41 | 117 | }//Ckov candidates loop |
118 | ||
119 | if (sigmaPID[iPid]>0) | |
120 | sigmaPID[iPid] *= (Double_t)(iMipId-recon.GetPhotBKG())/(Double_t)(iMipId); // n total phots, m are background...the sigma are scaled.. | |
121 | if(sigmaPID[iPid]>0) sigmaPID[iPid] = 1/TMath::Sqrt(sigmaPID[iPid])*0.001; // sigma from parametrization are in mrad... | |
122 | else sigmaPID[iPid] = 0; | |
123 | fErrPar[iPid]=sigmaPID[iPid]; | |
124 | AliDebug(1,Form("sigma for %s is %f rad",AliPID::ParticleName(iPid),sigmaPID[iPid])); | |
101624cd | 125 | } |
db910db9 | 126 | CalcProb(pTrack->GetRICHsignal(),pTrack->GetP(),sigmaPID,richPID); |
101624cd | 127 | pTrack->SetRICHpid(richPID); |
128 | AliDebug(1,Form("PROBABILITIES ---> %f - %f - %f - %f - %f",richPID[0],richPID[1],richPID[2],richPID[3],richPID[4])); | |
cb801d41 | 129 | }//if(pTrack->GetRICHsignal()) |
db910db9 | 130 | }//ESD tracks loop |
131 | AliDebug(1,"Stop pattern recognition"); | |
132 | return 0; // error code: 0=no error; | |
133 | }//PropagateBack() | |
134 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
1cb5a97c | 135 | void AliRICHTracker::RecWithStack(TNtupleD *hn) |
30c60010 | 136 | { |
db910db9 | 137 | // 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. |
138 | // Arguments: hn- output ntuple where to store all variables | |
139 | // Returns: none | |
d3eb6079 | 140 | AliDebug(1,"Start."); |
30c60010 | 141 | AliRICH *pRich=((AliRICH*)gAlice->GetDetector("RICH")); |
142 | ||
1cb5a97c | 143 | // pRich->GetLoader()->GetRunLoader()->LoadHeader(); |
d3eb6079 | 144 | if(!pRich->GetLoader()->GetRunLoader()->TreeK()) pRich->GetLoader()->GetRunLoader()->LoadKinematics(); |
30c60010 | 145 | AliStack *pStack = pRich->GetLoader()->GetRunLoader()->Stack(); |
39853df5 | 146 | if(!pStack) {AliDebug(1,Form("No STACK found in AliRoot"));return;} |
30c60010 | 147 | Int_t iNtracks=pStack->GetNtrack(); |
1cb5a97c | 148 | AliDebug(1,Form(" Start reconstruction with %i track(s) from Stack",iNtracks)); |
149 | ||
ab92fbe6 | 150 | Double_t hnvec[20]; |
1cb5a97c | 151 | |
30c60010 | 152 | Double_t b=GetFieldMap()->SolenoidField()/10;// magnetic field in Tesla |
153 | AliDebug(1,Form("Start with simulated %i tracks in %f Tesla field",iNtracks,b)); | |
154 | TVector3 x0(0,0,0); TVector3 p0(0,0,0);//tmp storage for AliRICHHelix | |
155 | ||
156 | ||
1cb5a97c | 157 | if(pRich->GetLoader()->LoadRecPoints()) {AliDebug(1,Form("No clusters found in RICH"));return;} |
158 | pRich->GetLoader()->TreeR()->GetEntry(0); | |
159 | ||
db910db9 | 160 | AliRICHRecon recon; |
a25b3368 | 161 | for(Int_t iTrackN=0;iTrackN<iNtracks;iTrackN++){//stack particles loop |
30c60010 | 162 | TParticle *pParticle = pStack->Particle(iTrackN); |
39853df5 | 163 | if(!pParticle) {AliDebug(1,Form("Not a valid TParticle pointer. Track skipped"));continue;} |
164 | AliDebug(1,Form(" PDG code : %i",pParticle->GetPdgCode())); | |
ab92fbe6 | 165 | // |
166 | // problem of PDG code of some extra particles to be solved!!!!!!!!! | |
167 | // | |
168 | // found problem! Look in TRD directory : codes from Fluka are : | |
169 | // | |
170 | // if ((pdg_code == 10010020) || | |
171 | // (pdg_code == 10010030) || | |
172 | // (pdg_code == 50000050) || | |
173 | // (pdg_code == 50000051) || | |
174 | // (pdg_code == 10020040)) { | |
175 | // | |
176 | if(pParticle->GetPdgCode()>=50000050||pParticle->GetPdgCode()==0||pParticle->GetPdgCode()>10000) {AliDebug(1,Form("A photon as track... Track skipped"));continue;} | |
1e066c96 | 177 | if(!pParticle->GetPDG()) continue; |
ab92fbe6 | 178 | // |
179 | // to be updated for us!! | |
180 | // | |
9f873529 | 181 | AliDebug(1,Form("Track %i is a %s with charge %i and momentum %f", |
182 | iTrackN,pParticle->GetPDG()->GetName(),Int_t(pParticle->GetPDG()->Charge()),pParticle->P())); | |
183 | // if(pParticle->GetMother(0)!=-1) continue; //consider only primaries | |
184 | if(pParticle->GetPDG()->Charge()==0||TMath::Abs(Int_t(pParticle->GetPDG()->Charge()))!=3) continue; //to avoid photons from stack... | |
1cb5a97c | 185 | hnvec[0]=pParticle->P(); |
186 | hnvec[1]=pParticle->GetPDG()->Charge(); | |
db910db9 | 187 | |
188 | p0.SetMagThetaPhi(pParticle->P(),pParticle->Theta(),pParticle->Phi()); x0.SetXYZ(pParticle->Vx(),pParticle->Vy(),pParticle->Vz()); | |
9f873529 | 189 | AliRICHHelix helix(x0,p0,TMath::Sign(1,(Int_t)pParticle->GetPDG()->Charge()),b); |
db910db9 | 190 | Int_t iChamber=helix.RichIntersect(AliRICHParam::Instance()); |
191 | if(!iChamber) continue;// no intersection with RICH found | |
192 | ||
ef210ba6 | 193 | hnvec[2]=helix.Ploc().Theta(); |
194 | hnvec[3]=helix.Ploc().Phi(); | |
1cb5a97c | 195 | hnvec[4]=helix.PosPc().X(); |
196 | hnvec[5]=helix.PosPc().Y(); | |
db910db9 | 197 | |
198 | Double_t dX,dY,dR,dRmip=9999; //min distance between clusters and track position on PC | |
0fe8fa07 | 199 | Int_t iMipId=-1; //index of that min distance cluster |
db910db9 | 200 | for(Int_t iClu=0;iClu<pRich->Clus(iChamber)->GetEntries();iClu++){//clusters loop for intersected chamber |
201 | AliRICHCluster *pClu=(AliRICHCluster*)pRich->Clus(iChamber)->UncheckedAt(iClu);//get pointer to current cluster | |
202 | pClu->DistXY(helix.PosPc(),dX,dY); dR=TMath::Sqrt(dX*dX+dY*dY);//ditance between current cluster and helix intersection with PC | |
203 | if(dR<dRmip){dRmip=dR; hnvec[6]=pClu->X();hnvec[7]=pClu->Y();hnvec[8]=pClu->Q(); | |
204 | iMipId=1000000*iChamber+iClu;}//find cluster nearest to the track | |
30c60010 | 205 | |
a25b3368 | 206 | }//clusters loop for intersected chamber |
30c60010 | 207 | |
db910db9 | 208 | |
209 | hnvec[9]=recon.ThetaCerenkov(&helix,pRich->Clus(iChamber),iMipId); //search for mean Cerenkov angle for this track | |
210 | hnvec[10]=iMipId;//on return from ThetaCerenkov() contains number of photon candidates accepted | |
1cb5a97c | 211 | hnvec[11]=(Double_t)iMipId; |
ab92fbe6 | 212 | hnvec[12]=(Double_t)iChamber; |
213 | hnvec[13]=(Double_t)pParticle->GetPdgCode(); | |
1cb5a97c | 214 | if(hn) hn->Fill(hnvec); |
db910db9 | 215 | AliDebug(1,Form("FINAL Theta Cerenkov=%f",hnvec[9])); |
a25b3368 | 216 | }//stack particles loop |
1cb5a97c | 217 | |
39853df5 | 218 | pRich->GetLoader()->UnloadRecPoints(); |
30c60010 | 219 | AliDebug(1,"Stop."); |
a25b3368 | 220 | }//RecWithStack |
db910db9 | 221 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
101624cd | 222 | void AliRICHTracker::CalcProb(Double_t thetaCer,Double_t pmod, Double_t *sigmaPID, Double_t *richPID) |
30c60010 | 223 | { |
12b0e5f4 | 224 | // Calculates probability to be a electron-muon-pion-kaon-proton |
a25b3368 | 225 | // from the given Cerenkov angle and momentum assuming no initial particle composition |
12b0e5f4 | 226 | // (i.e. apriory probability to be the particle of the given sort is the same for all sorts) |
304864ab | 227 | Double_t height[AliPID::kSPECIES];Double_t totalHeight=0; |
101624cd | 228 | Double_t thetaTh[AliPID::kSPECIES]; |
304864ab | 229 | for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++){ |
101624cd | 230 | height[iPart]=0; |
068217e3 | 231 | Double_t mass = AliRICHParam::fgMass[iPart]; |
db910db9 | 232 | Double_t refIndex=AliRICHParam::Instance()->IdxC6F14(AliRICHParam::EckovMean()); |
30c60010 | 233 | Double_t cosThetaTh = TMath::Sqrt(mass*mass+pmod*pmod)/(refIndex*pmod); |
101624cd | 234 | thetaTh[iPart]=0; |
235 | if(cosThetaTh>=1) continue; | |
236 | thetaTh[iPart] = TMath::ACos(cosThetaTh); | |
237 | // Double_t sinThetaThNorm = TMath::Sin(thetaTh)/TMath::Sqrt(1-1/(refIndex*refIndex)); | |
238 | // Double_t sigmaThetaTh = (0.014*(1/sinThetaThNorm-1) + 0.0043)*1.25; | |
239 | // height[iPart] = TMath::Gaus(thetaCer,thetaTh,sigmaThetaTh); | |
01c81d9d | 240 | if(sigmaPID[iPart]>0) height[iPart] = TMath::Gaus(thetaCer,thetaTh[iPart],sigmaPID[iPart],kTRUE); |
241 | else height[iPart] = 0; | |
30c60010 | 242 | totalHeight +=height[iPart]; |
db910db9 | 243 | AliDebugClass(1,Form(" Particle %s with mass %f with height %f and thetaTH %f",AliPID::ParticleName(iPart),mass,height[iPart],thetaTh[iPart])); |
244 | AliDebugClass(1,Form(" partial height %15.14f total height %15.14f",height[iPart],totalHeight)); | |
30c60010 | 245 | } |
12b0e5f4 | 246 | if(totalHeight<1e-5) {for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++)richPID[iPart]=1.0/AliPID::kSPECIES;return;} |
101624cd | 247 | for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++) richPID[iPart] = height[iPart]/totalHeight; |
248 | Int_t iPartNear = TMath::LocMax(AliPID::kSPECIES,richPID); | |
01c81d9d | 249 | if(TMath::Abs(thetaCer-thetaTh[iPartNear])>5.*sigmaPID[iPartNear]) for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++)richPID[iPart]=1.0/AliPID::kSPECIES; |
07625543 | 250 | //last line is to check if the nearest thetacerenkov to the teorethical one is within 5 sigma, otherwise no response (equal prob to every particle |
101624cd | 251 | |
30c60010 | 252 | }//CalcProb |
db910db9 | 253 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
254 | void AliRICHTracker::EsdPrint() | |
255 | { | |
2a92c3fe | 256 | // Reads a set of ESD files and print out some information |
257 | // Arguments: probCut - cut on probability | |
258 | // Returns: none | |
259 | ||
260 | TFile *pFile=TFile::Open("AliESDs.root","read"); if(!pFile) {Printf("ERROR: AliESDs.root does not exist!");return;} | |
261 | TTree *pTr=(TTree*)pFile->Get("esdTree"); if(!pTr) {Printf("ERROR: AliESDs.root, no ESD tree inside!");return;} | |
262 | AliESD *pEsd=new AliESD; pTr->SetBranchAddress("ESD", &pEsd); | |
db910db9 | 263 | |
2a92c3fe | 264 | Int_t iNevt=pTr->GetEntries(); Printf("This ESD contains %i events",iNevt); |
db910db9 | 265 | for(Int_t iEvt=0;iEvt<iNevt;iEvt++){//ESD events loop |
2a92c3fe | 266 | pTr->GetEvent(iEvt); |
267 | Int_t iNtracks=pEsd->GetNumberOfTracks(); Printf("ESD contains %i tracks created in Bz=%.2f Tesla",iNtracks,pEsd->GetMagneticField()/10.); | |
db910db9 | 268 | for(Int_t iTrk=0;iTrk<iNtracks;iTrk++){//ESD tracks loop |
2a92c3fe | 269 | AliESDtrack *pTrack = pEsd->GetTrack(iTrk);// get next reconstructed track |
2714766e | 270 | Float_t dx,dy; pTrack->GetRICHdxdy(dx,dy); |
271 | Float_t theta,phi; pTrack->GetRICHthetaPhi(theta,phi); | |
272 | TString comment; | |
273 | if(pTrack->GetRICHsignal()>0) | |
274 | comment="OK"; | |
275 | else if(pTrack->GetRICHsignal()==kMipQdcCut) | |
276 | comment="no enough QDC"; | |
277 | else if(pTrack->GetRICHsignal()==kMipDistCut) | |
278 | comment="nearest cluster is too far"; | |
279 | else if(pTrack->GetRICHsignal()==-1) | |
280 | comment="no intersection"; | |
281 | Printf("Track %2i Q=%4.1f P=%.3f GeV RICH: ChamClus %7i Track-Mip=(%7.2f,%7.2f)=%5.2f cm ThetaCer %7.1f rad %s", | |
282 | iTrk,pTrack->GetSign(),pTrack->GetP(), | |
283 | pTrack->GetRICHcluster(),dx,dy,TMath::Sqrt(dx*dx+dy*dy),pTrack->GetRICHsignal(), comment.Data()); | |
db910db9 | 284 | }//ESD tracks loop |
285 | }//ESD events loop | |
2a92c3fe | 286 | delete pEsd; pFile->Close();//close AliESDs.root |
287 | } | |
288 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
289 | void AliRICHTracker::MatrixPrint(Double_t probCut) | |
290 | { | |
291 | // 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. | |
292 | // Normally it implies that those 3 ESDs contain only particles of the same sort namly pions, kaons and protons in that order. | |
293 | // Arguments: probCut - cut on probability | |
294 | // Returns: none | |
295 | for(Int_t iFile=0;iFile<3;iFile++){ | |
296 | TFile *pFile=TFile::Open(Form("Esd%1i.root",iFile+1),"read"); if(!pFile) {Printf("ERROR: Esd%1i.root does not exist!",iFile+1);return;} | |
297 | TTree *pTr=(TTree*)pFile->Get("esdTree"); if(!pTr) {Printf("ERROR: Esd%1i.root, no ESD tree inside!",iFile+1);return;} | |
298 | AliESD *pEsd=new AliESD; pTr->SetBranchAddress("ESD", &pEsd); | |
299 | Int_t iProtCnt=0,iKaonCnt=0,iPionCnt=0,iUnreconCnt=0,iTrkCnt=0; //counters | |
300 | ||
301 | for(Int_t iEvt=0;iEvt<pTr->GetEntries();iEvt++){//ESD events loop | |
302 | pTr->GetEvent(iEvt); | |
303 | iTrkCnt+=pEsd->GetNumberOfTracks(); | |
304 | for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){//ESD tracks loop | |
305 | AliESDtrack *pTrack = pEsd->GetTrack(iTrk);// get next reconstructed track | |
2714766e | 306 | Float_t dx,dy; pTrack->GetRICHdxdy(dx,dy); |
307 | Float_t theta,phi; pTrack->GetRICHthetaPhi(theta,phi); | |
2a92c3fe | 308 | Double_t prob[5]; pTrack->GetRICHpid(prob); |
309 | if(pTrack->GetRICHsignal()>0){ | |
310 | if(prob[4]>probCut) iProtCnt++; | |
311 | if(prob[3]>probCut) iKaonCnt++; | |
312 | if((prob[0]+prob[1]+prob[2])>probCut) iPionCnt++; | |
313 | } else | |
314 | iUnreconCnt++; | |
315 | }//ESD tracks loop | |
316 | ||
317 | }//ESD events loop | |
318 | Printf("Bz=%5.2f Events=%i Total tracks=%i No recognized tracks=%i Pion=%i Kaon=%i Proton=%i ProbCut=%.2f", | |
319 | 0.1*pEsd->GetMagneticField(),pTr->GetEntries(),iTrkCnt,iUnreconCnt,iPionCnt,iKaonCnt,iProtCnt,probCut); | |
320 | delete pEsd; pFile->Close();//close AliESDs.root | |
321 | }//files loop | |
db910db9 | 322 | } |
323 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |