* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-
+//.
+// HMPID base class to reconstruct an event
+//.
+//.
+//.
#include "AliHMPIDReconstructor.h" //class header
#include "AliHMPID.h" //Reconstruct()
-#include "AliHMPIDCluster.h" //CluQA()
+#include "AliHMPIDCluster.h" //Dig2Clu()
+#include "AliHMPIDPid.h" //FillEsd()
#include "AliHMPIDParam.h" //FillEsd()
-#include <AliESD.h> //FillEsd()
-#include <AliRunLoader.h> //Reconstruct() for simulated digits
-#include <AliRawReader.h> //Reconstruct() for raw digits
-#include <AliRun.h> //Reconstruct()
-#include <TH1F.h> //CluQA()
-#include <TH2F.h> //CluQA()
-#include <TCanvas.h> //CluQA()
-#include <TNtupleD.h> //CheckPR()
+#include <AliCDBEntry.h> //ctor
+#include <AliCDBManager.h> //ctor
+#include <AliESDEvent.h> //FillEsd()
+#include <AliRawReader.h> //Reconstruct() for raw digits
+#include "AliHMPIDRawStream.h" //ConvertDigits()
+#include "AliHMPIDRecoParam.h" //ctor
ClassImp(AliHMPIDReconstructor)
+AliHMPIDRecoParam* AliHMPIDReconstructor::fgkRecoParam =0; //
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-void AliHMPIDReconstructor::CluQA(AliRunLoader *pAL)
+AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fUserCut(0),fDaqSig(0),fDig(0),fClu(0)
{
-// Quality assesment plots for clusters.
-// This methode takes list of digits and form list of clusters again in order to
-// calculate cluster shape and cluster particle mixture
- AliLoader *pRL=pAL->GetDetectorLoader("HMPID"); AliHMPID *pRich=(AliHMPID*)pAL->GetAliRun()->GetDetector("HMPID");//get pointers for HMPID and HMPID loader
- Int_t iNevt=pAL->GetNumberOfEvents(); if(iNevt==0) {AliInfoClass("No events");return;}
- if(pRL->LoadDigits()) {AliInfoClass("No digits file");return;}
- pAL->LoadHeader();
- pAL->LoadKinematics();
-// AliStack *pStack=pAL->Stack();
- TH1::AddDirectory(kFALSE);
-
-
- TH1F* pQ=new TH1F("RiAllQ" ,"Charge All" ,4000 ,0 ,4000);// Q hists
- TH1F* pCerQ=new TH1F("RiCerQ" ,"Charge Ckov" ,4000 ,0 ,4000);
- TH1F* pMipQ=new TH1F("RiMipQ" ,"Charge MIP" ,4000 ,0 ,4000);
-
- TH1F* pS=new TH1F("RichCluSize" ,"Cluster size;size" ,100 ,0 ,100 );// size hists
- TH1F* pCerS=new TH1F("RichCluCerSize" ,"Ckov size;size" ,100 ,0 ,100 );
- TH1F* pMipS=new TH1F("RichCluMipSize" ,"MIP size;size" ,100 ,0 ,100 );
-
- TH2F* pM=new TH2F("RichCluMap" ,"Cluster map;x [cm];y [cm]" ,1000 ,0 ,AliHMPIDDigit::SizePcX(),1000,0,AliHMPIDDigit::SizePcY()); // maps
- TH2F* pMipM=new TH2F("RichCluMipMap" ,"MIP map;x [cm];y [cm]" ,1000 ,0 ,AliHMPIDDigit::SizePcX(),1000,0,AliHMPIDDigit::SizePcY());
- TH2F* pCerM=new TH2F("RichCluCerMap" ,"Ckov map;x [cm];y [cm]" ,1000 ,0 ,AliHMPIDDigit::SizePcX(),1000,0,AliHMPIDDigit::SizePcY());
-
+//
+//ctor
+//
+ AliHMPIDParam::Instance(); //geometry loaded for reconstruction
+ fUserCut = new Int_t[7];
+ fClu=new TObjArray(AliHMPIDParam::kMaxCh+1); fClu->SetOwner(kTRUE);
+ fDig=new TObjArray(AliHMPIDParam::kMaxCh+1); fDig->SetOwner(kTRUE);
-
- for(Int_t iEvt=0;iEvt<iNevt;iEvt++){
- pAL->GetEvent(iEvt);
- pRL->TreeD()->GetEntry(0);
- TClonesArray *pCluLst=new TClonesArray("AliHMPIDCluster");//tmp list of clusters for this event
-
- for(Int_t iCh=0;iCh<7;iCh++) Dig2Clu(pRich->DigLst(iCh),pCluLst,kFALSE);//cluster finder for all chamber if any digits present
-
- for(Int_t iClu=0;iClu<pCluLst->GetEntriesFast();iClu++){
- AliHMPIDCluster *pClu = (AliHMPIDCluster*)pCluLst->At(iClu);
- Int_t cfm=0; for(Int_t iDig=0;iDig<pClu->Size();iDig++) cfm+=pClu->Dig(iDig)->Ch(); //collect ckov-fee-mip structure of current cluster ?????
- Int_t iNckov=cfm/1000000; Int_t iNfee =cfm%1000000/1000; Int_t iNmip =cfm%1000000%1000;
+ for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){
+ fDig->AddAt(new TClonesArray("AliHMPIDDigit"),i);
+ TClonesArray *pClus = new TClonesArray("AliHMPIDCluster");
+ pClus->SetUniqueID(i);
+ fClu->AddAt(pClus,i);
+ }
- pQ ->Fill(pClu->Q()) ; pS ->Fill(pClu->Size()) ; pM ->Fill(pClu->X(),pClu->Y()); //all clusters
- if(iNckov!=0 && iNfee==0 && iNmip==0) {pCerQ->Fill(pClu->Q()) ; pCerS->Fill(pClu->Size()) ; pCerM ->Fill(pClu->X(),pClu->Y());}//ckov only cluster
- if(iNckov==0 && iNfee==0 && iNmip!=0) {pMipQ->Fill(pClu->Q()) ; pMipS->Fill(pClu->Size()) ; pMipM ->Fill(pClu->X(),pClu->Y());}//mip only cluster
-
- }//clusters loop
- pCluLst->Clear();delete pCluLst;
- }//events loop
-
- pRL->UnloadDigits(); pAL->UnloadKinematics(); pAL->UnloadHeader();
- TCanvas *pC=new TCanvas("RichCluQA",Form("QA for cluster from %i events",iNevt),1000,900); pC->Divide(3,3);
- pC->cd(1); pM->Draw(); pC->cd(2); pQ->Draw(); pC->cd(3); pS->Draw();
- pC->cd(4); pMipM->Draw(); pC->cd(5); pMipQ->Draw(); pC->cd(6); pMipS->Draw();
- pC->cd(7); pCerM->Draw(); pC->cd(8); pCerQ->Draw(); pC->cd(9); pCerS->Draw();
-}//CluQA()
+ if(fgkRecoParam!=0x0 && fgkRecoParam->GetUserCutMode()==kFALSE)
+ {
+ for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
+ fUserCut[iCh] = fgkRecoParam->GetUserCut(iCh);
+ Printf("HMPID: UserCut successfully loaded (from RecoParam) for chamber %i -> %i ",iCh,fUserCut[iCh]);
+ }
+ }
+ else {
+ AliCDBEntry *pUserCutEnt =AliCDBManager::Instance()->Get("HMPID/Calib/UserCut"); //contains TObjArray of 14 TObject with n. of sigmas to cut charge
+ if(pUserCutEnt) {
+ TObjArray *pUserCut = (TObjArray*)pUserCutEnt->GetObject();
+ for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
+ fUserCut[iCh] = pUserCut->At(iCh)->GetUniqueID();
+ Printf("HMPID: UserCut successfully loaded (from OCDB) for chamber %i -> %i ",iCh,fUserCut[iCh]);
+ }
+ }
+ }
+
+ AliCDBEntry *pDaqSigEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads
+ if(!pDaqSigEnt) AliFatal("No pedestals from DAQ!");
+ fDaqSig = (TObjArray*)pDaqSigEnt->GetObject();
+ for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
+ Printf(" HMPID: DaqSigCut successfully loaded for chamber %i -> %i ",iCh,(Int_t)fDaqSig->At(iCh)->GetUniqueID());
+ }
+}//AliHMPIDReconstructor
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-void AliHMPIDReconstructor::Dig2Clu(TClonesArray *pDigLst,TClonesArray *pCluLst,Bool_t isTryUnfold)
+void AliHMPIDReconstructor::Dig2Clu(TObjArray *pDigAll,TObjArray *pCluAll,Bool_t isTryUnfold)
{
// Finds all clusters for a given digits list provided not empty. Currently digits list is a list of all digits for a single chamber.
// Puts all found clusters in separate lists, one per clusters.
-// Arguments: pDigLst - list of digits provided not empty
-// pCluLst - list of clusters, provided empty
+// Arguments: pDigAll - list of digits for all chambers
+// pCluAll - list of clusters for all chambers
// isTryUnfold - flag to choose between CoG and Mathieson fitting
// Returns: none
- TMatrixF digMap(AliHMPIDDigit::kPadAllX,AliHMPIDDigit::kPadAllY); digMap=(Float_t)-1; //digit map for single chamber reseted to -1
- for(Int_t iDig=0;iDig<pDigLst->GetEntriesFast();iDig++){ //digits loop to fill digits map
- AliHMPIDDigit *pDig= (AliHMPIDDigit*)pDigLst->At(iDig); //get current digit
- digMap( pDig->PadX(), pDig->PadY() )=iDig; //fill the map, (padx,pady) cell takes digit index
- } //digits loop to fill digits map
+ TMatrixF padMap(AliHMPIDParam::kMinPx,AliHMPIDParam::kMaxPcx,AliHMPIDParam::kMinPy,AliHMPIDParam::kMaxPcy); //pads map for single chamber 0..159 x 0..143
- AliHMPIDCluster clu; //tmp cluster to be used as current
+ for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
+ TClonesArray *pDigCur=(TClonesArray*)pDigAll->At(iCh); //get list of digits for current chamber
+ if(pDigCur->GetEntriesFast()==0) continue; //no digits for current chamber
- for(Int_t iDig=0;iDig<pDigLst->GetEntriesFast();iDig++){ //digits loop to form clusters list
- AliHMPIDDigit *pDig=(AliHMPIDDigit*)pDigLst->At(iDig); //take current digit
- if(!(pDig=UseDig(pDig->PadX(),pDig->PadY(),pDigLst,&digMap))) continue; //this digit is already taken in FormClu(), go after next digit
- FormClu(&clu,pDig,pDigLst,&digMap); //form cluster starting from this digit by recursion
- clu.Solve(pCluLst,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list
- clu.Reset(); //empty current cluster
- } //digits loop to form clusters list
+ padMap=(Float_t)-1; //reset map to -1 (means no digit for this pad)
+ TClonesArray *pCluCur=(TClonesArray*)pCluAll->At(iCh); //get list of clusters for current chamber
+
+ for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop to fill pads map
+ AliHMPIDDigit *pDig= (AliHMPIDDigit*)pDigCur->At(iDig); //get current digit
+ padMap( pDig->PadChX(), pDig->PadChY() )=iDig; //fill the map, (padx,pady) cell takes digit index
+ }//digits loop to fill digits map
+
+ AliHMPIDCluster clu; //tmp cluster to be used as current
+ for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop for current chamber
+ AliHMPIDDigit *pDig=(AliHMPIDDigit*)pDigCur->At(iDig); //take current digit
+ if(!(pDig=UseDig(pDig->PadChX(),pDig->PadChY(),pDigCur,&padMap))) continue; //this digit is already taken in FormClu(), go after next digit
+ FormClu(&clu,pDig,pDigCur,&padMap); //form cluster starting from this digit by recursion
+
+ clu.Solve(pCluCur,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list
+ clu.Reset(); //empty current cluster
+ }//digits loop for current chamber
+ }//chambers loop
}//Dig2Clu()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliHMPIDReconstructor::FormClu(AliHMPIDCluster *pClu,AliHMPIDDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap)
{
-// Forms the initial cluster as a sum of all adjascent digits. Starts from the given digit
-// then calls itself recursevly for all neighbours.
+// Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly for all neighbours.
// Arguments: pClu - pointer to cluster being formed
-// Returns: none
+// Returns: none
pClu->DigAdd(pDig);//take this digit in cluster
- Int_t x[4],y[4];
+ Int_t cnt=0,cx[4],cy[4];
+ if(pDig->PadPcX() != AliHMPIDParam::kMinPx){cx[cnt]=pDig->PadChX()-1; cy[cnt]=pDig->PadChY() ;cnt++;} //left
+ if(pDig->PadPcX() != AliHMPIDParam::kMaxPx){cx[cnt]=pDig->PadChX()+1; cy[cnt]=pDig->PadChY() ;cnt++;} //right
+ if(pDig->PadPcY() != AliHMPIDParam::kMinPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()-1;cnt++;} //down
+ if(pDig->PadPcY() != AliHMPIDParam::kMaxPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()+1;cnt++;} //up
- Int_t iPadCnt=0; Int_t iPadX=pDig->PadX(); Int_t iPadY=pDig->PadY();
- if(iPadX != AliHMPIDDigit::kPad1) {x[iPadCnt]=iPadX-1; y[iPadCnt]=iPadY; iPadCnt++;} //left
- if(iPadX != AliHMPIDDigit::kPadPcX) {x[iPadCnt]=iPadX+1; y[iPadCnt]=iPadY; iPadCnt++;} //right
- if(iPadY != AliHMPIDDigit::kPad1) {x[iPadCnt]=iPadX; y[iPadCnt]=iPadY-1; iPadCnt++;} //down
- if(iPadY != AliHMPIDDigit::kPadPcY) {x[iPadCnt]=iPadX; y[iPadCnt]=iPadY+1; iPadCnt++;} //up
-
- for (Int_t i=0;i<iPadCnt;i++)
- if((pDig=UseDig(x[i],y[i],pDigLst,pDigMap))) FormClu(pClu,pDig,pDigLst,pDigMap); //check if this neighbour hit and mark it as taken
+ for (Int_t i=0;i<cnt;i++){//neighbours loop
+ if((pDig=UseDig(cx[i],cy[i],pDigLst,pDigMap))) FormClu(pClu,pDig,pDigLst,pDigMap); //check if this neighbour pad fired and mark it as taken
+ }//neighbours loop
}//FormClu()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-void AliHMPIDReconstructor::Reconstruct(AliRunLoader *pAL)const
+void AliHMPIDReconstructor::Reconstruct(TTree *pDigTree,TTree *pCluTree)const
{
//Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data
-//Arguments: pAL - ALICE run loader pointer
+//Arguments: pDigTree - pointer to Digit tree
+// pCluTree - poitner to Cluster tree
// Returns: none
AliDebug(1,"Start.");
- AliLoader *pRL=pAL->GetDetectorLoader("HMPID");
- AliHMPID *pRich=(AliHMPID*)pAL->GetAliRun()->GetDetector("HMPID");//get pointers for HMPID and HMPID loader
- pRL->LoadDigits();
- pRL->LoadRecPoints("recreate");
+ for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
+ pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),4000,0);
+ pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh]));
+ }
+ pDigTree->GetEntry(0);
+ Dig2Clu(fDig,fClu); //cluster finder
+ pCluTree->Fill(); //fill tree for current event
+
+ for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
+ fDig->At(iCh)->Clear();
+ fClu->At(iCh)->Clear();
+ }
- for(Int_t iEvtN=0;iEvtN<pAL->GetNumberOfEvents();iEvtN++){//events loop
- pAL->GetEvent(iEvtN); AliDebug(1,Form("Processing event %i...",iEvtN)); //switch current directory to next event
- pRL->TreeD()->GetEntry(0); pRL->MakeTree("R"); pRich->MakeBranch("R"); //load digits to memory and create branches for clusters
-
- for(Int_t iCh=0;iCh<7;iCh++) Dig2Clu(pRich->DigLst(iCh),pRich->CluLst(iCh));//cluster finder
-
- pRL->TreeR()->Fill(); //fill tree for current event
- pRL->WriteRecPoints("OVERWRITE");//write out clusters for current event
- pRich->DigReset(); pRich->CluReset();
- }//events loop
-
- pRL->UnloadDigits();
- pRL->UnloadRecPoints();
-
AliDebug(1,"Stop.");
}//Reconstruct(for simulated digits)
-//__________________________________________________________________________________________________
-void AliHMPIDReconstructor::Reconstruct(AliRunLoader *pAL,AliRawReader* pRR)const
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliHMPIDReconstructor::ConvertDigits(AliRawReader *pRR,TTree *pDigTree)const
{
-//Invoked by AliReconstruction to convert raw digits from DDL files to clusters
-//Arguments: pAL - ALICE run loader pointer
-// pRR - ALICE raw reader pointer
+//Invoked by AliReconstruction to convert raw digits from DDL files to digits
+//Arguments: pRR - ALICE raw reader pointer
+// pDigTree - pointer to Digit tree
// Returns: none
- AliLoader *pRL=pAL->GetDetectorLoader("HMPID"); AliHMPID *pRich=(AliHMPID*)pAL->GetAliRun()->GetDetector("HMPID");//get pointers for HMPID and HMPID loader
-
- AliHMPIDDigit dig; //tmp digit, raw digit will be converted to it
+ AliDebug(1,"Start.");
+// Int_t digcnt=0;
- Int_t iEvtN=0;
- while(pRR->NextEvent()){//events loop
- pAL->GetEvent(iEvtN++);
- pRL->MakeTree("R"); pRich->MakeBranch("R");
+
+ for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
+ pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh]),4000,0);
- for(Int_t iCh=0;iCh<7;iCh++){//chambers loop
- TClonesArray *pDigLst=new TClonesArray("AliHMPIDDigit"); Int_t iDigCnt=0; //tmp list of digits for single chamber
- pRR->Select("HMPID",2*iCh,2*iCh+1);//select only DDL files for the current chamber
- UInt_t w32=0;
- while(pRR->ReadNextInt(w32)){//raw records loop (in selected DDL files)
- UInt_t ddl=pRR->GetDDLID(); //returns 0,1,2 ... 13
- dig.ReadRaw(ddl,w32);
- AliDebug(1,Form("Ch=%i DDL=%i raw=0x%x digit=(%3i,%3i,%3i,%3i) Q=%5.2f",iCh,ddl,w32,dig.Ch(),dig.Pc(),dig.PadX(),dig.PadY(),dig.Q()));
- new((*pDigLst)[iDigCnt++]) AliHMPIDDigit(dig); //add this digit to the tmp list
- }//raw records loop
- if(iDigCnt) Dig2Clu(pDigLst,pRich->CluLst(iCh));//cluster finder for the current chamber if any digits present
- pRR->Reset();
- pDigLst->Delete(); iDigCnt=0;//clean up list of digits for the current chamber
- }//chambers loop
- pRL->TreeR()->Fill(); //fill tree for current event
- pRL->WriteRecPoints("OVERWRITE");//write out clusters for current event
- pRich->CluReset();
- }//events loop
- pRL->UnloadRecPoints();
-}//Reconstruct raw data
+ Int_t iDigCnt=0;
+ AliHMPIDRawStream stream(pRR);
+ while(stream.Next())
+ {
+
+ UInt_t ddl=stream.GetDDLNumber(); //returns 0,1,2 ... 13
+ if((UInt_t)(2*iCh)==ddl || (UInt_t)(2*iCh+1)==ddl) {
+ for(Int_t row = 1; row <= AliHMPIDRawStream::kNRows; row++){
+ for(Int_t dil = 1; dil <= AliHMPIDRawStream::kNDILOGICAdd; dil++){
+ for(Int_t pad = 0; pad < AliHMPIDRawStream::kNPadAdd; pad++){
+ if(stream.GetCharge(ddl,row,dil,pad) < 1) continue;
+ AliHMPIDDigit dig(stream.GetPad(ddl,row,dil,pad),stream.GetCharge(ddl,row,dil,pad));
+ if(!IsDigSurvive(&dig)) continue;
+ new((*((TClonesArray*)fDig->At(iCh)))[iDigCnt++]) AliHMPIDDigit(dig); //add this digit to the tmp list
+ }//pad
+ }//dil
+ }//row
+ }//while
+ }
+ stream.Delete();
+ }
+ pDigTree->Fill();
+
+ for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)fDig->At(iCh)->Clear();
+
+ AliDebug(1,"Stop.");
+}//Reconstruct digits from raw digits
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
-void AliHMPIDReconstructor::FillESD(AliRunLoader *, AliESD *pESD) const
+void AliHMPIDReconstructor::FillESD(TTree */*digitsTree*/, TTree */*clustersTree*/, AliESDEvent *pESD) const
{
-// Calculates probability to be a electron-muon-pion-kaon-proton
-// from the given Cerenkov angle and momentum assuming no initial particle composition
-// (i.e. apriory probability to be the particle of the given sort is the same for all sorts)
+// Fill ESD with all the infos from HMPID
+// Probability vector from AliHMPIDPid
+//...
+
+ AliHMPIDPid *pPid = new AliHMPIDPid();
+ pPid->FindPid(pESD);
+ delete pPid;
- AliPID ppp; //needed
- Double_t pid[AliPID::kSPECIES],h[AliPID::kSPECIES];
-
- for(Int_t iTrk=0;iTrk<pESD->GetNumberOfTracks();iTrk++){//ESD tracks loop
- AliESDtrack *pTrk = pESD->GetTrack(iTrk);// get next reconstructed track
- if(pTrk->GetHMPIDsignal()<=0){//HMPID does not find anything reasonable for this track, assign 0.2 for all species
- for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++) pid[iPart]=1.0/AliPID::kSPECIES;
- pTrk->SetHMPIDpid(pid);
- continue;
- }
- Double_t pmod = pTrk->GetP();
- Double_t hTot=0;
- for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++){
- Double_t mass = AliPID::ParticleMass(iPart);
- Double_t cosThetaTh = TMath::Sqrt(mass*mass+pmod*pmod)/(AliHMPIDParam::Instance()->MeanIdxRad()*pmod);
- if(cosThetaTh<1) //calculate the height of theortical theta ckov on the gaus of experimental one
- h[iPart] =TMath::Gaus(TMath::ACos(cosThetaTh),pTrk->GetHMPIDsignal(),TMath::Sqrt(pTrk->GetHMPIDchi2()),kTRUE);
-
- else //beta < 1/ref. idx. => no light at all
- h[iPart] =0 ;
- hTot +=h[iPart]; //total height of all theoretical heights for normalization
- }//species loop
-
- Double_t hMin=TMath::Gaus(pTrk->GetHMPIDsignal()-4*TMath::Sqrt(pTrk->GetHMPIDchi2()),pTrk->GetHMPIDsignal(),TMath::Sqrt(pTrk->GetHMPIDchi2()),kTRUE);//5 sigma protection
-
- for(Int_t iPart=0;iPart<AliPID::kSPECIES;iPart++)//species loop to assign probabilities
- if(hTot>hMin)
- pid[iPart]=h[iPart]/hTot;
- else //all theoretical values are far away from experemental one
- pid[iPart]=1.0/AliPID::kSPECIES;
- pTrk->SetHMPIDpid(pid);
- }//ESD tracks loop
- //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
-}//FillESD
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+}//FillESD()
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff