X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=HMPID%2FAliHMPIDTracker.cxx;h=36fe303a12c96c470e120cf5c70f06b7bb958d26;hb=e23a04710bf3315db0207a5768aa7165543ac4e2;hp=1b3e4f5b7338747278ecdd42abc0764e456a62e1;hpb=59280a5aa0d82213d7e85fc2df5d64b76c0c5cdb;p=u%2Fmrichter%2FAliRoot.git diff --git a/HMPID/AliHMPIDTracker.cxx b/HMPID/AliHMPIDTracker.cxx index 1b3e4f5b733..36fe303a12c 100644 --- a/HMPID/AliHMPIDTracker.cxx +++ b/HMPID/AliHMPIDTracker.cxx @@ -1,12 +1,52 @@ #include "AliHMPIDTracker.h" //class header +#include "AliHMPIDtrack.h" //class header #include "AliHMPIDCluster.h" //GetTrackPoint(),PropagateBack() #include "AliHMPIDParam.h" //GetTrackPoint(),PropagateBack() -#include "AliHMPIDRecon.h" //PropagateBack() -#include //PropagateBack() +#include "AliHMPIDPid.h" //Recon(),reconHTA() +#include "AliHMPIDRecon.h" //Recon() +#include "AliHMPIDRecoParamV1.h" //Recon() +#include "AliHMPIDReconstructor.h"//Recon() +#include "AliHMPIDReconHTA.h" //ReconHTA() +#include //Recon() +#include //PropagateBack(),Recon() +#include //Intersect() +#include #include //GetTrackPoint(),PropagateBack() #include //GetTrackPoint() #include //GetTrackPoint() +#include //PropageteBack() +#include //PropageteBack() +#include "TTreeStream.h" // debug streamer +// +// HMPID base class fo tracking +//. +//. +//. ClassImp(AliHMPIDTracker) +//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +AliHMPIDTracker::AliHMPIDTracker(): + AliTracker(), + fClu(new TObjArray(AliHMPIDParam::kMaxCh+1)), + fDebugStreamer(0) +{ +// ctor. Create TObjArray of TClonesArray of AliHMPIDCluster +// +// + fClu->SetOwner(kTRUE); + for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) fClu->AddAt(new TClonesArray("AliHMPIDCluster"),i); + fDebugStreamer = new TTreeSRedirector("HMPIDdebug.root"); + +}//ctor + + +AliHMPIDTracker::~AliHMPIDTracker(){ + // + // destructor + // + delete fClu; + if (fDebugStreamer) delete fDebugStreamer; +} + //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Bool_t AliHMPIDTracker::GetTrackPoint(Int_t idx, AliTrackPoint& point) const { @@ -16,68 +56,569 @@ Bool_t AliHMPIDTracker::GetTrackPoint(Int_t idx, AliTrackPoint& point) const // point- reference to the object where to store the point // Returns: status of operation if FALSE then AliReconstruction::WriteAlignmentData() do not store this point to array of points for current track. if(idx<0) return kFALSE; //no MIP cluster assigned to this track in PropagateBack() - Int_t iCham=idx/1000000; - Int_t iClu=idx%1000000; - point.SetVolumeID(AliAlignObj::LayerToVolUID(AliAlignObj::kHMPID,iCham-1));//layer and chamber number - AliHMPID *pRich=((AliHMPID*)gAlice->GetDetector("HMPID")); - AliHMPIDCluster *pClu=(AliHMPIDCluster*)pRich->CluLst(iCham)->UncheckedAt(iClu);//get pointer to cluster - Double_t mars[3]; - AliHMPIDParam::Instance()->Lors2Mars(iCham,pClu->X(),pClu->Y(),mars); - point.SetXYZ(mars[0],mars[1],mars[2]); + Int_t iCham=idx/1000000; Int_t iClu=idx%1000000; + iClu = iClu%1000; //GetHMPIDcluIdx -> 1e+6*ch + 1e+3*clusize + cluIdx; + point.SetVolumeID(AliGeomManager::LayerToVolUID(AliGeomManager::kHMPID,iCham));//layer and chamber number + TClonesArray *pArr=(TClonesArray*)(*fClu)[iCham]; + AliHMPIDCluster *pClu=(AliHMPIDCluster*)pArr->UncheckedAt(iClu);//get pointer to cluster + Float_t xyz[3]; + pClu->GetGlobalXYZ(xyz); + Float_t cov[6]; + pClu->GetGlobalCov(cov); + point.SetXYZ(xyz,cov); return kTRUE; -} +}//GetTrackPoint() +//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +Int_t AliHMPIDTracker::IntTrkCha(AliESDtrack *pTrk,Float_t &xPc,Float_t &yPc,Float_t &xRa,Float_t &yRa,Float_t &theta,Float_t &phi) +{ +// Static method to find intersection in between given track and HMPID chambers +// Arguments: pTrk- ESD track; xPc,yPc- track intersection with PC in LORS [cm] +// Returns: intersected chamber ID or -1 + AliHMPIDtrack *hmpTrk = new AliHMPIDtrack(*pTrk); //create a hmpid track to be used for propagation and matching + for(Int_t i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){ //chambers loop + Int_t chInt = IntTrkCha(i,hmpTrk,xPc,yPc,xRa,yRa,theta,phi); + if(chInt>=0) {delete hmpTrk;hmpTrk=0x0;return chInt;} + } //chambers loop + delete hmpTrk; hmpTrk=0x0; + return -1; //no intersection with HMPID chambers +}//IntTrkCha() +//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +Int_t AliHMPIDTracker::IntTrkCha(Int_t ch,AliHMPIDtrack *pTrk,Float_t &xPc,Float_t &yPc,Float_t &xRa,Float_t &yRa,Float_t &theta,Float_t &phi) +{ +// Static method to find intersection in between given track and HMPID chambers +// Arguments: pTrk- HMPID track; xPc,yPc- track intersection with PC in LORS [cm] +// Returns: intersected chamber ID or -1 + AliHMPIDParam *pParam=AliHMPIDParam::Instance(); + Double_t p1[3],n1[3]; + pParam->Norm(ch,n1); + pParam->Point(ch,p1,AliHMPIDParam::kRad); //point & norm for middle of radiator plane + Double_t p2[3],n2[3]; + pParam->Norm(ch,n2); + pParam->Point(ch,p2,AliHMPIDParam::kPc); //point & norm for entrance to PC plane + if(pTrk->Intersect(p1,n1)==kFALSE) return -1; //try to intersect track with the middle of radiator + if(pTrk->Intersect(p2,n2)==kFALSE) return -1; + pParam->Mars2LorsVec(ch,n1,theta,phi); //track angles at RAD + pParam->Mars2Lors (ch,p1,xRa,yRa); //TRKxRAD position + pParam->Mars2Lors (ch,p2,xPc,yPc); //TRKxPC position + if(AliHMPIDParam::IsInside(xPc,yPc,pParam->DistCut())==kTRUE) return ch; //return intersected chamber + return -1; //no intersection with HMPID chambers +}//IntTrkCha() //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Int_t AliHMPIDTracker::LoadClusters(TTree *pCluTree) { -// Interface callback methode invoked from AliReconstruction::RunTracking() to load HMPID clusters before PropagateBack() gets control +// Interface callback methode invoked from AliReconstruction::RunTracking() to load HMPID clusters before PropagateBack() gets control. Done once per event. // Arguments: pCluTree- pointer to clusters tree got by AliHMPIDLoader::LoadRecPoints("read") then AliHMPIDLoader::TreeR() // Returns: error code (currently ignored in AliReconstruction::RunTraking()) - AliDebug(1,"Start."); pCluTree->GetEntry(0); AliDebug(1,"Stop."); return 0; -} + for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) pCluTree->SetBranchAddress(Form("HMPID%d",i),&((*fClu)[i])); + pCluTree->GetEntry(0); + return 0; +}//LoadClusters() //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -Int_t AliHMPIDTracker::Recon(AliESD *pESD,TObjArray *pCluAll) +Int_t AliHMPIDTracker::PropagateBack(AliESDEvent *pEsd) { -// Interface callback methode invoked by AliRecontruction::RunTracking() during tracking after TOF. It's done just once per event -// Arguments: pESD - pointer to Event Summary Data class instance which contains a list of tracks -// Returns: error code, 0 if no errors - Int_t iNtracks=pESD->GetNumberOfTracks(); AliDebugClass(1,Form("Start with %i tracks",iNtracks)); - - AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor - Float_t xRa,yRa; - for(Int_t iTrk=0;iTrkGetTrack(iTrk); //get next reconstructed track - Int_t cham=IntTrkCha(pTrk,xRa,yRa); //get chamber intersected by thie track - if(cham<0) continue; //no intersection at all, go after next track - recon.CkovAngle(pTrk,(TClonesArray *)pCluAll->At(cham)); //search for Cerenkov angle for this track - } //ESD tracks loop - AliDebugClass(1,"Stop pattern recognition"); - return 0; // error code: 0=no error; +// Interface pure virtual in AliTracker. Invoked from AliReconstruction::RunTracking() after invocation of AliTracker::LoadClusters() once per event +// Agruments: pEsd - pointer to ESD +// Returns: error code + AliCDBEntry *pNmeanEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Nmean"); //contains TObjArray of 42 TF1 + 1 EPhotMean + AliCDBEntry *pQthreEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Qthre"); //contains TObjArray of 42 (7ch * 6sec) TF1 + if(!pNmeanEnt) AliError("No Nmean C6F14 "); + if(!pQthreEnt) AliError("No Qthre"); + + return Recon(pEsd,fClu,(TObjArray*)pNmeanEnt->GetObject(),(TObjArray*)pQthreEnt->GetObject()); }//PropagateBack() //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -Int_t AliHMPIDTracker::IntTrkCha(AliESDtrack *pTrk,Float_t &xRa,Float_t &yRa) +Int_t AliHMPIDTracker::Recon(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre) { -// Static method to find intersection in between given track and HMPID chambers -// Arguments: pTrk - ESD track -// xRa,yRa - track intersection with the middle of radiator, LORS -// Returns: intersected chamber ID or -1 +// Static method to reconstruct the Cherenkov angle for all valid tracks of a given event. +// Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time) +// Returns: error code, 0 if no errors +// +// Algortihm: Loop over tracks +// +// 1. Find the closest MIP cluster using fast tracks extrapolation method +// 2. Propagate track to the MIP cluster using the STEER method +// 3. Update the track information with MIP cluster (Improved angular and position resolution - to be used for Cherenkov angle calculation) +// 4. Propagate back the constrained track to the radiator radius ( not exact yet) +// 5. Propagation in the last 10 cm with the fast method +// 6. Set ESDtrack information +// 7. Calculate the Cherenkov angle + + const Double_t kMaxSnp=0.9; //maximal snp for prolongation + const Double_t kdRadiator=10; // distance between radiator and the plane + AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor + AliHMPIDParam *pParam = AliHMPIDParam::Instance(); //Instance of AliHMPIDParam + Float_t xPc,yPc,xRa,yRa,theta,phi; + + Double_t cluLORS[2]={0}; + Int_t nMipClusTot=0; + + Double_t qthre = 0; Double_t nmean=0; Int_t hvsec=0; + Int_t nClusCh[AliHMPIDParam::kMaxCh+1]; + + Bool_t tsRight = kTRUE; + + UInt_t tsmin = (UInt_t)((TF1*)pQthre->At(0))->GetXmin(); // + UInt_t tsmax = (UInt_t)((TF1*)pQthre->At(0))->GetXmax(); // + UInt_t ts = pEsd->GetTimeStamp(); - AliHMPIDParam *pParam=AliHMPIDParam::Instance(); - Float_t xPc=0,yPc=0,th=0,ph=0; //track intersection point and angles, LORS - for(Int_t i=0;i<7;i++){ //chambers loop - Double_t p1[3],n1[3]; pParam->Norm(i,n1); pParam->Lors2Mars(i,0,0,p1,AliHMPIDParam::kRad); //point & norm for RAD - Double_t p2[3],n2[3]; pParam->Norm(i,n2); pParam->Lors2Mars(i,0,0,p2,AliHMPIDParam::kPc); //point & norm for PC + if(tstsmax) { + AliWarning(Form(" in HMPID time stamp out of range!!! Please check!!! ts = %i",ts)); + tsRight = kFALSE; + } + + for(Int_t iTrk=0;iTrkGetNumberOfTracks();iTrk++){ //loop on the ESD tracks in the event + + // Double_t bestChi2=99999;chi2=99999; //init. track matching params + Double_t dmin=999999,bz=0,distCut=1,distParams[5]={1}; + + Bool_t isOkDcut=kFALSE; + Bool_t isOkQcut=kFALSE; + Bool_t isMatched=kFALSE; + + AliHMPIDCluster *bestHmpCluster=0x0; //the best matching cluster + AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //get reconstructed track + + if(!pTrk->IsOn(AliESDtrack::kTPCout)) continue; + + if(pTrk->IsOn(AliESDtrack::kTPCrefit)) continue; + AliESDfriendTrack *ftrack= (AliESDfriendTrack *)pTrk->GetFriendTrack(); + if (!ftrack) continue; + if (!ftrack->GetTPCOut()) continue; + AliHMPIDtrack *hmpTrk = new AliHMPIDtrack(*pTrk); //create a hmpid track to be used for propagation and matching + AliHMPIDtrack *hmpTrkConstrained = 0; //create a hmpid track to be used for propagation and matching + hmpTrk->Set(ftrack->GetTPCOut()->GetX(), ftrack->GetTPCOut()->GetAlpha(),ftrack->GetTPCOut()->GetParameter(), ftrack->GetTPCOut()->GetCovariance()); + // + bz=AliTracker::GetBz(); + + //initial flags for HMPID ESD infos + pTrk->SetHMPIDtrk(0,0,0,0); //no intersection found + pTrk->SetHMPIDmip(0,0,0,0); //store mip info in any case + pTrk->SetHMPIDcluIdx(99,99999); //chamber not found, mip not yet considered + pTrk->SetHMPIDsignal(AliHMPIDRecon::kNotPerformed); //ring reconstruction not yet performed + + Int_t ipCh=IntTrkCha(pTrk,xPc,yPc,xRa,yRa,theta,phi); //find the intersected chamber for this track + if(ipCh<0) {delete hmpTrk;hmpTrk=0x0;continue;} //no intersection at all, go after next track + + pTrk->SetHMPIDtrk(xPc,yPc,theta,phi); //store initial infos + pTrk->SetHMPIDcluIdx(ipCh,9999); //set chamber, index of cluster + cluster size + + // track intersects the chamber ipCh: find the MIP + + TClonesArray *pMipCluLst=(TClonesArray *)pClus->At(ipCh); //get the list of clusters + nMipClusTot = pMipCluLst->GetEntries(); //total number of clusters in the given chamber + nClusCh[ipCh] = nMipClusTot; + + if(nMipClusTot==0) {delete hmpTrk;hmpTrk=0x0;continue;} + + Int_t index=-1; //index of the "best" matching cluster + // + // 1. Find the closest MIP cluster using fast tracks extrapolation method + // + for (Int_t iClu=0; iCluIntersect(p1,n1,-GetBz())==kFALSE) continue; //try to intersect track with the middle of radiator - if(pTrk->Intersect(p2,n2,-GetBz())==kFALSE) continue; //try to intersect track with PC + AliHMPIDCluster *pClu=(AliHMPIDCluster*)pMipCluLst->UncheckedAt(iClu); //get the cluster + // evaluate qThre + if(tsRight){ + if(pQthre->GetEntriesFast()==pParam->kMaxCh+1) { + qthre=((TF1*)pQthre->At(pClu->Ch()))->Eval(ts); // + } else { // in the past just 1 qthre + hvsec = pParam->InHVSector(pClu->Y()); // per chamber + if(hvsec>=0) qthre=((TF1*)pQthre->At(6*ipCh+hvsec))->Eval(ts); // + } + } else qthre = pParam->QCut(); - pParam->Mars2LorsVec(i,n1,th,ph); //track angles - pParam->Mars2Lors (i,p1,xRa,yRa); //TRKxRAD position - pParam->Mars2Lors (i,p2,xPc,yPc); //TRKxPC position + // + if(pClu->Q()X(); cluLORS[1]=pClu->Y(); //get the LORS coordinates of the cluster + Double_t dist = TMath::Sqrt((xPc-cluLORS[0])*(xPc-cluLORS[0])+(yPc-cluLORS[1])*(yPc-cluLORS[1])); - if(AliHMPIDDigit::IsInside(xPc,yPc)==kFALSE) continue; //not in active area - pTrk->SetHMPIDtrk (xPc,yPc,th,ph); //store track intersection info - pTrk->SetHMPIDcluIdx (i,0); - return i; - } //chambers loop - return -1; //no intersection with HMPID chambers + if(distSetHMPIDsignal(pParam->kMipQdcCut); + delete hmpTrk;hmpTrk=0x0; continue; + }*/ + + // + // 2. Propagate track to the MIP cluster using the STEER method + // + + if(!bestHmpCluster) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;} + + TVector3 vG = pParam->Lors2Mars(ipCh,bestHmpCluster->X(),bestHmpCluster->Y()); + Double_t gx = vG[0]; + Double_t gy = vG[1]; + Double_t gz = vG[2]; + Double_t alpha=TMath::ATan2(gy,gx); + Double_t radiusH=TMath::Sqrt(gy*gy+gx*gx); + if (!(hmpTrk->Rotate(alpha,kTRUE))) continue; + if(!AliTrackerBase::PropagateTrackToBxByBz(hmpTrk,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1)) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;} + // + // 3. Update the track with MIP cluster (Improved angular and position resolution - to be used for Cherenkov angle calculation) + // + AliExternalTrackParam trackC(*hmpTrk); + Double_t posC[2]={0,gz}; + Double_t covC[3]={0.1*0.1, 0, 0.1*0.1}; + trackC.Update(posC,covC); + // + // 4. Propagate back the constrained track to the radiator radius ( not exact yet) + // + hmpTrkConstrained = new AliHMPIDtrack(*pTrk); + hmpTrkConstrained->Set(trackC.GetX(), trackC.GetAlpha(),trackC.GetParameter(), trackC.GetCovariance()); + if(!AliTrackerBase::PropagateTrackToBxByBz(hmpTrkConstrained,radiusH-kdRadiator,pTrk->GetMass(),1,kFALSE,kMaxSnp,1)) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0;continue;} + // + // 5. Propagation in the last 10 cm with the fast method + // + Float_t xPc0=0, yPc0=0; + + IntTrkCha(ipCh, hmpTrk, xPc0,yPc0,xRa,yRa,theta,phi); + IntTrkCha(ipCh, hmpTrkConstrained, xPc,yPc,xRa,yRa,theta,phi); + // + // 6. Set ESDtrack information + // + Int_t cluSiz = bestHmpCluster->Size(); + pTrk->SetHMPIDmip(bestHmpCluster->X(),bestHmpCluster->Y(),(Int_t)bestHmpCluster->Q(),0); //store mip info in any case + pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set chamber, index of cluster + cluster size + pTrk->SetHMPIDtrk(xPc0,yPc0,theta,phi); + // + // + // Dump debug info if specified + // + if (AliHMPIDReconstructor::StreamLevel()>0) { + AliExternalTrackParam * trackTPC=new AliExternalTrackParam(*(ftrack->GetTPCOut())); + AliExternalTrackParam * trackCurrent=new AliExternalTrackParam(*pTrk); + if(!trackTPC->Rotate(alpha)) continue; + if(!trackCurrent->Rotate(alpha)) continue; + Bool_t statusTPC= AliTracker::PropagateTrackToBxByBz(trackTPC,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1); + Bool_t statusCurrent=AliTracker::PropagateTrackToBxByBz(trackCurrent,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1); + AliExternalTrackParam * trackTPCNB=new AliExternalTrackParam(*(ftrack->GetTPCOut())); + if(!trackTPCNB->Rotate(alpha)) continue; + Bool_t statusTPCNB=kTRUE; + Double_t bfield[3]={0,0,0}; + for (Double_t radius=trackTPCNB->GetX(); radiusGetXYZ(xyz); + GetBxByBz(xyz,bfield); + statusTPCNB&=trackTPCNB->PropagateToBxByBz(radius,bfield); + } + statusTPCNB&=trackTPCNB->PropagateToBxByBz(radiusH,bfield); + // + Double_t tanAlpha=TMath::Tan(TMath::ASin(trackTPC->GetSnp())); + Double_t deltaC= trackTPC->GetC(AliTrackerBase::GetBz())-ftrack->GetTPCOut()->GetC(AliTrackerBase::GetBz()); + // + AliExternalTrackParam * trackTPCConstrained= new AliExternalTrackParam(*trackTPC); + Double_t pos[2]={0,gz}; + Double_t cov[3]={0.1*0.1, 0, 0.1*0.1}; + Double_t chi2C = trackTPCConstrained->GetPredictedChi2(pos,cov); + trackTPCConstrained->Update(pos,cov); + (*fDebugStreamer)<<"track"<< + "rH="<SetHMPIDsignal(pParam->kMipQdcCut); + delete hmpTrk;hmpTrk=0x0; + delete hmpTrkConstrained;hmpTrkConstrained=0x0; + continue; + } + + if(AliHMPIDReconstructor::GetRecoParam()) //retrieve distance cut + { + if(AliHMPIDReconstructor::GetRecoParam()->IsFixedDistCut()==kTRUE) //distance cut is fixed number + { + distCut=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDist(); + } + else + { + for(Int_t ipar=0;ipar<5;ipar++) distParams[ipar]=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDistParam(ipar); //prevision: distance cut is function of momentum + distCut=distParams[0]+distParams[1]*TMath::Power(distParams[2]*pTrk->GetP(),distParams[3]); //prevision: change functional form to be more precise + } + } + else {distCut=pParam->DistCut();} + + //dmin recalculated + + dmin = TMath::Sqrt((xPc0-bestHmpCluster->X())*(xPc0-bestHmpCluster->X())+(yPc0-bestHmpCluster->Y())*(yPc0-bestHmpCluster->Y())); + + if(dmin < distCut) { + isOkDcut = kTRUE; + } + //isOkDcut = kTRUE; // switch OFF cut + + if(!isOkDcut) { + pTrk->SetHMPIDsignal(pParam->kMipDistCut); //closest cluster with enough charge is still too far from intersection + } + + if(isOkQcut*isOkDcut) isMatched = kTRUE; // MIP-Track matched !! + + if(!isMatched) {delete hmpTrk;hmpTrk=0x0;delete hmpTrkConstrained;hmpTrkConstrained=0x0;continue;} // If matched continue... + + Bool_t isOk = kTRUE; + if(!isOk) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;} + pTrk->SetOuterHmpParam(hmpTrkConstrained,AliESDtrack::kHMPIDout); + + FillResiduals(hmpTrk,bestHmpCluster,kFALSE); + + Int_t iRad = pParam->Radiator(yRa); //evaluate the radiator involved + + //evaluate nMean + if(tsRight){ + if(pNmean->GetEntries()==21) { //for backward compatibility + nmean=((TF1*)pNmean->At(3*ipCh))->Eval(ts); //C6F14 Nmean for this chamber + } else { + if(iRad < 0) { + nmean = -1; + } else { + Double_t tLow = ((TF1*)pNmean->At(6*ipCh+2*iRad ))->Eval(ts); //C6F14 low temp for this chamber + Double_t tHigh = ((TF1*)pNmean->At(6*ipCh+2*iRad+1))->Eval(ts); //C6F14 high temp for this chamber + Double_t tExp = pParam->FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y + nmean = pParam->NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp + } + if(nmean < 0){ //track didn' t pass through the radiator + pTrk->SetHMPIDsignal(AliHMPIDRecon::kNoRad); //set the appropriate flag + pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set index of cluster + delete hmpTrk;hmpTrk=0x0; + delete hmpTrkConstrained;hmpTrkConstrained=0x0; + continue; + } + } + } else nmean = pParam->MeanIdxRad(); + // + // 7. Calculate the Cherenkov angle + // + recon.SetImpPC(xPc0,yPc0); //store track impact to PC + recon.CkovAngle(pTrk,(TClonesArray *)pClus->At(ipCh),index,nmean,xRa,yRa); //search for Cerenkov angle of this track + + Double_t thetaCkov = pTrk->GetHMPIDsignal(); + + if (AliHMPIDReconstructor::StreamLevel()>0) { + AliExternalTrackParam * trackTPC=new AliExternalTrackParam(*(ftrack->GetTPCOut())); + AliExternalTrackParam * trackCurrent=new AliExternalTrackParam(*pTrk); + if(!trackTPC->Rotate(alpha)) continue; + if(!trackCurrent->Rotate(alpha)) continue; + Bool_t statusTPC= AliTracker::PropagateTrackToBxByBz(trackTPC,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1); + Bool_t statusCurrent=AliTracker::PropagateTrackToBxByBz(trackCurrent,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1); + Double_t tanAlpha=TMath::Tan(TMath::ASin(trackTPC->GetSnp())); + Double_t deltaC= trackTPC->GetC(AliTrackerBase::GetBz())-ftrack->GetTPCOut()->GetC(AliTrackerBase::GetBz()); + // + AliExternalTrackParam * trackTPCNB=new AliExternalTrackParam(*(ftrack->GetTPCOut())); + if(!trackTPCNB->Rotate(alpha)) continue; + Bool_t statusTPCNB=kTRUE; + Double_t bfield[3]={0,0,0}; + for (Double_t radius=trackTPCNB->GetX(); radiusGetXYZ(xyz); + GetBxByBz(xyz,bfield); + statusTPCNB&=trackTPCNB->PropagateToBxByBz(radius,bfield); + } + statusTPCNB&=trackTPCNB->PropagateToBxByBz(radiusH,bfield); + + AliExternalTrackParam * trackTPCConstrained= new AliExternalTrackParam(*trackTPC); + Double_t pos[2]={0,gz}; + Double_t cov[3]={0.1*0.1, 0, 0.1*0.1}; + Double_t chi2C = trackTPCConstrained->GetPredictedChi2(pos,cov); + trackTPCConstrained->Update(pos,cov); + (*fDebugStreamer)<<"track2"<< + "rH="<GetHMPIDsignal()<0) { + delete hmpTrk;hmpTrk=0x0; + delete hmpTrkConstrained; hmpTrkConstrained=0x0; + continue;} + + AliHMPIDPid pID; + Double_t prob[5]; + pID.FindPid(pTrk,5,prob); + pTrk->SetHMPIDpid(prob); +// Printf(" Prob e- %6.2f mu %6.2f pi %6.2f k %6.2f p %6.2f",prob[0]*100,prob[1]*100,prob[2]*100,prob[3]*100,prob[4]*100); + delete hmpTrk; hmpTrk=0x0; + delete hmpTrkConstrained; hmpTrkConstrained=0x0; + }//iTrk + + return 0; // error code: 0=no error; +}//Recon() +//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +Int_t AliHMPIDTracker::ReconHiddenTrk(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre) +{ +// Static method to reconstruct Theta Ckov for all valid tracks of a given event. +// Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time), pQthre - pointer to all function Qthre=f(time) +// Returns: error code, 0 if no errors + + AliHMPIDReconHTA reconHTA; //instance of reconstruction class, nothing important in ctor + + AliHMPIDParam *pParam = AliHMPIDParam::Instance(); //Instance of AliHMPIDParam + + Bool_t tsRight = kTRUE; + + UInt_t tsmin = (UInt_t)((TF1*)pQthre->At(0))->GetXmin(); // + UInt_t tsmax = (UInt_t)((TF1*)pQthre->At(0))->GetXmax(); // + UInt_t ts = pEsd->GetTimeStamp(); + + if(tstsmax) { + AliWarning(Form(" in HMPID time stamp out of range!!! Please check!!! ts = %i",ts)); + tsRight = kFALSE; + } + + for(Int_t iTrk=0;iTrkGetNumberOfTracks();iTrk++){ //loop on the ESD tracks in the event + + AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //here it is simulated or just empty track + Int_t ipCh; + ipCh = pTrk->GetHMPIDcluIdx();ipCh/=1000000; + if(ipCh<0) continue; + + TClonesArray *pMipCluLst=(TClonesArray *)pClus->At(ipCh); //get the list of clusters + Int_t nMipClusTot = pMipCluLst->GetEntries(); //total number of clusters in the given chamber + + Double_t qMip=-1; + Int_t chMip=-1; + Double_t xMip = 0; + Double_t yMip = 0; + Int_t indMip = 0; + Int_t cluMipSiz = 0; + + for (Int_t iClu=0; iCluUncheckedAt(iClu); //get the cluster + Double_t qClus = pClu->Q(); + if(qClus>qMip) { + qMip = qClus; + chMip = pClu->Ch(); + xMip = pClu->X(); + yMip = pClu->Y(); + indMip = iClu; + cluMipSiz = pClu->Size(); + } + }//clus loop + + if(chMip<0) return 1; + + Int_t hvsec; + Double_t qthre=0; + +// evaluate qThre + if(tsRight){ + if(pQthre->GetEntriesFast()==pParam->kMaxCh+1) { // just for backward compatibility + qthre=((TF1*)pQthre->At(chMip))->Eval(ts); // + } else { // in the past just 1 qthre + hvsec = pParam->InHVSector(yMip); // per chamber + if(hvsec>=0) qthre=((TF1*)pQthre->At(6*chMip+hvsec))->Eval(ts); // + } + } else qthre = pParam->QCut(); +// + if(qMipSetHMPIDmip(xMip,yMip,(Int_t)qMip,0); //store mip info in any case + pTrk->SetHMPIDcluIdx(chMip,indMip+1000*cluMipSiz); + pTrk->SetHMPIDsignal(pParam->kMipQdcCut); + return 1; //charge compatible with MIP clusters + } + + pTrk->SetHMPIDmip(xMip,yMip,(Int_t)qMip,0); //store mip info in any case + pTrk->SetHMPIDcluIdx(chMip,indMip+1000*cluMipSiz); + + Double_t yRa = yMip; //just an approx... + Double_t nmean; + + Int_t iRad = pParam->Radiator(yRa); //evaluate the radiator involved + + //evaluate nMean + if(tsRight){ + if(pNmean->GetEntries()==21) { //for backward compatibility + nmean=((TF1*)pNmean->At(3*chMip))->Eval(ts); //C6F14 Nmean for this chamber + } else { + if(iRad < 0) { + nmean = -1; + } else { + Double_t tLow = ((TF1*)pNmean->At(6*chMip+2*iRad ))->Eval(ts); //C6F14 low temp for this chamber + Double_t tHigh = ((TF1*)pNmean->At(6*chMip+2*iRad+1))->Eval(ts); //C6F14 high temp for this chamber + Double_t tExp = pParam->FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y + nmean = pParam->NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp + } + if(nmean < 0){ //track didn' t pass through the radiator + pTrk->SetHMPIDsignal(AliHMPIDRecon::kNoRad); //set the appropriate flag + return 1; + } + } + } else nmean = pParam->MeanIdxRad(); + // + if(!reconHTA.CkovHiddenTrk(pTrk,(TClonesArray *)pClus->At(ipCh),indMip,nmean)) { //search for track parameters and Cerenkov angle of this track + AliHMPIDPid pID; + Double_t prob[5]; + pID.FindPid(pTrk,5,prob); + pTrk->SetHMPIDpid(prob); + } +// Printf(" Prob e- %6.2f mu %6.2f pi %6.2f k %6.2f p %6.2f",prob[0]*100,prob[1]*100,prob[2]*100,prob[3]*100,prob[4]*100); + }//iTrk + + return 0; // error code: 0=no error; + +}//Recon() +//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +void AliHMPIDTracker::FillClusterArray(TObjArray* array) const { + + // Publishes all pointers to clusters known to the tracker into the + // passed object array. + // The ownership is not transfered - the caller is not expected to delete + // the clusters + + for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ + TClonesArray *pCluArr=(TClonesArray*)(*fClu)[iCh]; + for (Int_t iClu=0; iCluGetEntriesFast();iClu++){ + AliHMPIDCluster *pClu=(AliHMPIDCluster*)pCluArr->UncheckedAt(iClu); + array->AddLast(pClu); + }//cluster loop in iCh + pCluArr->Delete(); + }//Ch loop + + return; } +//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++