* provided "as is" without express or implied warranty. *
**************************************************************************/
+// $Id$
+
+/// \ingroup macros
+/// \file MUONRecoCheck.C
+/// \brief Utility macro to check the muon reconstruction.
+///
+/// Reconstructed tracks are compared to reference tracks. The reference tracks
+/// are built from AliTrackReference for the hit in chamber (0..9) and from
+/// kinematics (TreeK) for the vertex parameters.
+///
+/// \author Jean-Pierre Cussonneau, Subatech
+
// ROOT includes
+#include "TMath.h"
#include "TClonesArray.h"
#include "TH1.h"
+#include "TH2.h"
+#include "TGraphErrors.h"
+#include "TF1.h"
#include "TFile.h"
-#include <TGeoManager.h>
// STEER includes
-#include "AliRun.h"
-#include "AliHeader.h"
-#include "AliMC.h"
-#include "AliStack.h"
-#include "AliMagFMaps.h"
-#include "AliTracker.h"
+#include "AliCDBManager.h"
// MUON includes
+#include "AliMUONCDB.h"
#include "AliMUONConstants.h"
#include "AliMUONTrack.h"
#include "AliMUONRecoCheck.h"
#include "AliMUONTrackParam.h"
-#include "AliMUONTrackExtrap.h"
-
+#include "AliMUONRecoParam.h"
#include "AliMUONVTrackStore.h"
+#include "AliMUONVCluster.h"
-Int_t TrackCheck( Bool_t *compTrack);
-
-void MUONRecoCheck (Int_t nEvent = 1, char* geoFilename = "geometry.root",
- char * filenameSim="galice_sim.root", char * filename="galice.root"){
-
- // Utility macro to check the muon reconstruction. Reconstructed tracks are compared
- // to reference tracks. The reference tracks are built from AliTrackReference for the
- // hit in chamber (0..9) and from kinematics (TreeK) for the vertex parameters.
-
- Bool_t *compTrack;
- Bool_t compTrackOK[10];
- Int_t nHitOK = 0;
- Int_t testTrack = 0;
- Int_t iTrack = 0;
- AliMUONTrack* trackOK(0x0);
- Int_t trackID = 0;
- Double_t sigma2Cut = 16; // 4 sigmas cut, sigma2Cut = 4*4
- AliMUONTrackParam *trackParam;
- TClonesArray *trackParamAtHit;
- Double_t x1,y1,z1,pX1,pY1,pZ1,p1;
- Double_t x2,y2,z2,pX2,pY2,pZ2,p2;
+void MUONRecoCheck (Int_t nEvent = -1, char * pathSim="./generated/", char * esdFileName="AliESDs.root",
+ const char* ocdbPath = "local://$ALICE_ROOT/OCDB")
+{
// File for histograms and histogram booking
TFile *histoFile = new TFile("MUONRecoCheck.root", "RECREATE");
TH1F *hReconstructible = new TH1F("hReconstructible"," Nb of reconstructible tracks ",15,-0.5,14.5);
TH1F *hReco = new TH1F("hReco"," Nb of reconstructed tracks / evt",15,-0.5,14.5);
- TH1F *hNHitComp = new TH1F("hNHitComp"," Nb of compatible hits / track ",15,-0.5,14.5);
- TH1F *hTestTrack = new TH1F("hTestTrack"," Reconstruction requirement / track",15,-0.5,14.5);
+ TH1F *hNClusterComp = new TH1F("hNClusterComp"," Nb of compatible clusters / track ",15,-0.5,14.5);
TH1F *hTrackRefID = new TH1F("hTrackRefID"," track reference ID ",100,-0.5,99.5);
- TH1F *hResMomVertex = new TH1F("hMomVertex"," delta P vertex (GeV/c)",100,-10.,10);
- TH1F *hResMomFirstHit = new TH1F("hMomFirstHit"," delta P first hit (GeV/c)",100,-10.,10);
+ // momentum resolution
+ TH1F *hResMomVertex = new TH1F("hResMomVertex"," delta P vertex (GeV/c)",100,-10.,10);
+ TH1F *hResMomFirstCluster = new TH1F("hResMomFirstCluster"," delta P first cluster (GeV/c)",100,-10.,10);
+ TH2D *hResMomVertexVsMom = new TH2D("hResMomVertexVsMom","#Delta_{p} at vertex versus p (GeV/c)",30,0.,300.,800,-20.,20.);
+ TH2D *hResMomFirstClusterVsMom = new TH2D("hResMomFirstClusterVsMom","#Delta_{p} at first cluster versus p (GeV/c)",30,0.,300.,800,-20.,20.);
+ TGraphErrors* gResMomVertexVsMom = new TGraphErrors(30);
+ gResMomVertexVsMom->SetName("gResMomVertexVsMom");
+ gResMomVertexVsMom->SetTitle("#Delta_{p}/p at vertex versus p;p (GeV/c);#sigma_{p}/p (%)");
+ TGraphErrors* gResMomFirstClusterVsMom = new TGraphErrors(30);
+ gResMomFirstClusterVsMom->SetName("gResMomFirstClusterVsMom");
+ gResMomFirstClusterVsMom->SetTitle("#Delta_{p}/p at first cluster versus p;p (GeV/c);#sigma_{p}/p (%)");
+ TF1* f = new TF1("f","gaus");
- // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex)
- if (!gGeoManager) {
- TGeoManager::Import(geoFilename);
- if (!gGeoManager) {
- Error("MUONmass_ESD", "getting geometry from file %s failed", geoFilename);
- return;
- }
+ // residuals at clusters
+ histoFile->mkdir("residuals","residuals");
+ histoFile->cd("residuals");
+ TH1F* hResidualXInCh[AliMUONConstants::NTrackingCh()];
+ TH1F* hResidualYInCh[AliMUONConstants::NTrackingCh()];
+ for (Int_t i = 0; i < AliMUONConstants::NTrackingCh(); i++) {
+ hResidualXInCh[i] = new TH1F(Form("hResidualXInCh%d",i+1), Form("cluster-track residual-X distribution in chamber %d;#Delta_{X} (cm)",i+1), 1000, -1., 1.);
+ hResidualYInCh[i] = new TH1F(Form("hResidualYInCh%d",i+1), Form("cluster-track residual-Y distribution in chamber %d;#Delta_{Y} (cm)",i+1), 1000, -0.5, 0.5);
}
+ TGraphErrors* gResidualXPerChMean = new TGraphErrors(AliMUONConstants::NTrackingCh());
+ gResidualXPerChMean->SetName("gResidualXPerChMean");
+ gResidualXPerChMean->SetTitle("cluster-track residual-X per Ch: mean;chamber ID;<#Delta_{Y}> (cm)");
+ gResidualXPerChMean->SetMarkerStyle(kFullDotLarge);
+ TGraphErrors* gResidualYPerChMean = new TGraphErrors(AliMUONConstants::NTrackingCh());
+ gResidualYPerChMean->SetName("gResidualYPerChMean");
+ gResidualYPerChMean->SetTitle("cluster-track residual-Y per Ch: mean;chamber ID;<#Delta_{Y}> (cm)");
+ gResidualYPerChMean->SetMarkerStyle(kFullDotLarge);
+ TGraphErrors* gResidualXPerChSigma = new TGraphErrors(AliMUONConstants::NTrackingCh());
+ gResidualXPerChSigma->SetName("gResidualXPerChSigma");
+ gResidualXPerChSigma->SetTitle("cluster-track residual-X per Ch: sigma;chamber ID;#sigma_{X} (cm)");
+ gResidualXPerChSigma->SetMarkerStyle(kFullDotLarge);
+ TGraphErrors* gResidualYPerChSigma = new TGraphErrors(AliMUONConstants::NTrackingCh());
+ gResidualYPerChSigma->SetName("gResidualYPerChSigma");
+ gResidualYPerChSigma->SetTitle("cluster-track residual-Y per Ch: sigma;chamber ID;#sigma_{X} (cm)");
+ gResidualYPerChSigma->SetMarkerStyle(kFullDotLarge);
- // set mag field
- // waiting for mag field in CDB
- printf("Loading field map...\n");
- AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG);
- AliTracker::SetFieldMap(field, kFALSE);
- // set the magnetic field for track extrapolations
- AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap());
-
- AliMUONRecoCheck rc(filename,filenameSim);
+ AliMUONRecoCheck rc(esdFileName, pathSim);
+
+ // load necessary data from OCDB
+ AliCDBManager::Instance()->SetDefaultStorage(ocdbPath);
+ AliCDBManager::Instance()->SetRun(rc.GetRunNumber());
+ AliMUONRecoParam* recoParam = AliMUONCDB::LoadRecoParam();
+ if (!recoParam) return;
+
+ // get sigma cut from recoParam to associate clusters with TrackRefs in case the label are not used
+ Double_t sigmaCut = (recoParam->ImproveTracks()) ? recoParam->GetSigmaCutForImprovement() : recoParam->GetSigmaCutForTracking();
+ // compute the mask of requested stations from recoParam
+ UInt_t requestedStationMask = 0;
+ for (Int_t i = 0; i < 5; i++) if (recoParam->RequestStation(i)) requestedStationMask |= ( 1 << i );
+ // get from recoParam whether a track need 2 chambers hit in the same station (4 or 5) or not to be reconstructible
+ Bool_t request2ChInSameSt45 = !recoParam->MakeMoreTrackCandidates();
Int_t nevents = rc.NumberOfEvents();
- if (nevents < nEvent) nEvent = nevents;
+ if (nevents < nEvent || nEvent < 0) nEvent = nevents;
Int_t ievent;
Int_t nReconstructibleTracks = 0;
Int_t nReconstructedTracks = 0;
Int_t nReconstructibleTracksCheck = 0;
+ AliMUONTrackParam *trackParam;
+ Double_t x1,y1,z1,pX1,pY1,pZ1,p1,pT1;
+ Double_t x2,y2,z2,pX2,pY2,pZ2,p2,pT2;
for (ievent=0; ievent<nEvent; ievent++)
{
if (!(ievent%10)) printf(" **** event # %d \n",ievent);
- AliMUONVTrackStore* trackStore = rc.ReconstructedTracks(ievent);
- AliMUONVTrackStore* trackRefStore = rc.ReconstructibleTracks(ievent);
+ AliMUONVTrackStore* trackStore = rc.ReconstructedTracks(ievent, kFALSE);
+ AliMUONVTrackStore* trackRefStore = rc.ReconstructibleTracks(ievent, requestedStationMask, request2ChInSameSt45);
hReconstructible->Fill(trackRefStore->GetSize());
hReco->Fill(trackStore->GetSize());
nReconstructibleTracks += trackRefStore->GetSize();
nReconstructedTracks += trackStore->GetSize();
+ // loop over trackRef
TIter next(trackRefStore->CreateIterator());
AliMUONTrack* trackRef;
-
while ( ( trackRef = static_cast<AliMUONTrack*>(next()) ) )
{
- testTrack = 0;
- trackOK = 0x0;
- for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++)
- {
- compTrackOK[ch] = kFALSE;
- }
+ hTrackRefID->Fill(trackRef->GetMCLabel());
+
+ AliMUONTrack* trackMatched = 0x0;
+ Int_t nMatchClusters = 0;
+
+ // loop over trackReco and look for compatible track
TIter next2(trackStore->CreateIterator());
AliMUONTrack* trackReco;
-
while ( ( trackReco = static_cast<AliMUONTrack*>(next2()) ) )
{
- // check if trackRef is compatible with trackReco
- compTrack = trackRef->CompatibleTrack(trackReco,sigma2Cut);
-
- iTrack = TrackCheck(compTrack);
-
- if (iTrack > testTrack)
- {
- nHitOK = 0;
- for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++)
- {
- if (compTrack[ch]) nHitOK++;
- compTrackOK[ch] = compTrack[ch];
- }
- testTrack = iTrack;
- trackOK = trackReco;
- }
+
+ // check if trackReco is compatible with trackRef
+ Int_t n = 0;
+ if (trackReco->Match(*trackRef, sigmaCut, nMatchClusters)) {
+ trackMatched = trackReco;
+ nMatchClusters = n;
+ break;
+ }
+
}
- hTestTrack->Fill(testTrack);
- trackID = trackRef->GetTrackID();
- hTrackRefID->Fill(trackID);
-
- if (testTrack == 4) { // tracking requirements verified, track is found
+ if (trackMatched) { // tracking requirements verified, track is found
nReconstructibleTracksCheck++;
- hNHitComp->Fill(nHitOK);
+ hNClusterComp->Fill(nMatchClusters);
trackParam = trackRef->GetTrackParamAtVertex();
x1 = trackParam->GetNonBendingCoor();
y1 = trackParam->GetBendingCoor();
pY1 = trackParam->Py();
pZ1 = trackParam->Pz();
p1 = trackParam->P();
+ pT1 = TMath::Sqrt(pX1*pX1 + pY1*pY1);
// printf(" Ref. track at vertex: x,y,z: %f %f %f px,py,pz,p: %f %f %f %f \n",x1,y1,z1,pX1,pY1,pZ1,p1);
- trackReco = trackOK;
- trackParam = new AliMUONTrackParam(*((AliMUONTrackParam*)(trackReco->GetTrackParamAtHit()->First())));
- AliMUONTrackExtrap::ExtrapToVertex(trackParam,x1,y1,z1);
+ trackParam = trackMatched->GetTrackParamAtVertex();
x2 = trackParam->GetNonBendingCoor();
y2 = trackParam->GetBendingCoor();
z2 = trackParam->GetZ();
pY2 = trackParam->Py();
pZ2 = trackParam->Pz();
p2 = trackParam->P();
- delete trackParam;
+ pT2 = TMath::Sqrt(pX2*pX2 + pY2*pY2);
// printf(" Reconst. track at vertex: x,y,z: %f %f %f px,py,pz: %f %f %f %f \n",x2,y2,z2,pX2,pY2,pZ2,p2);
hResMomVertex->Fill(p2-p1);
-
- trackParamAtHit = trackRef->GetTrackParamAtHit();
- trackParam = (AliMUONTrackParam*) trackParamAtHit->First();
+ hResMomVertexVsMom->Fill(p1,p2-p1);
+
+ trackParam = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->First();
x1 = trackParam->GetNonBendingCoor();
y1 = trackParam->GetBendingCoor();
z1 = trackParam->GetZ();
pY1 = trackParam->Py();
pZ1 = trackParam->Pz();
p1 = trackParam->P();
- // printf(" Ref. track at 1st hit: x,y,z: %f %f %f px,py,pz: %f %f %f \n",x1,y1,z1,pX1,pY1,pZ1);
- trackParamAtHit = trackOK->GetTrackParamAtHit();
- trackParam = (AliMUONTrackParam*) trackParamAtHit->First();
+ pT1 = TMath::Sqrt(pX1*pX1 + pY1*pY1);
+
+ // printf(" Ref. track at 1st cluster: x,y,z: %f %f %f px,py,pz: %f %f %f \n",x1,y1,z1,pX1,pY1,pZ1);
+ trackParam = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->First();
x2 = trackParam->GetNonBendingCoor();
y2 = trackParam->GetBendingCoor();
z2 = trackParam->GetZ();
pY2 = trackParam->Py();
pZ2 = trackParam->Pz();
p2 = trackParam->P();
- // printf(" Reconst. track at 1st hit: x,y,z: %f %f %f px,py,pz: %f %f %f \n",x2,y2,z2,pX2,pY2,pZ2);
+ pT2 = TMath::Sqrt(pX2*pX2 + pY2*pY2);
+ // printf(" Reconst. track at 1st cluster: x,y,z: %f %f %f px,py,pz: %f %f %f \n",x2,y2,z2,pX2,pY2,pZ2);
- hResMomFirstHit->Fill(p2-p1);
-
+ hResMomFirstCluster->Fill(p2-p1);
+ hResMomFirstClusterVsMom->Fill(p1,p2-p1);
+
+ // Fill residuals
+ // Loop over clusters of first track
+ AliMUONTrackParam* trackParamAtCluster1 = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->First();
+ while (trackParamAtCluster1) {
+ AliMUONVCluster* cluster1 = trackParamAtCluster1->GetClusterPtr();
+ AliMUONTrackParam* trackParamAtCluster2 = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->First();
+ while (trackParamAtCluster2) {
+ AliMUONVCluster* cluster2 = trackParamAtCluster2->GetClusterPtr();
+ if (cluster1->GetDetElemId() == cluster2->GetDetElemId()) {
+ hResidualXInCh[cluster1->GetChamberId()]->Fill(cluster1->GetX() - cluster2->GetX());
+ hResidualYInCh[cluster1->GetChamberId()]->Fill(cluster1->GetY() - cluster2->GetY());
+ break;
+ }
+ trackParamAtCluster2 = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->After(trackParamAtCluster2);
+ }
+ trackParamAtCluster1 = (AliMUONTrackParam*) trackMatched->GetTrackParamAtCluster()->After(trackParamAtCluster1);
+ }
+
}
+
} // end loop track ref.
} // end loop on event
- delete field;
+ // compute momentum resolution versus p
+ for (Int_t i = 1; i <= hResMomVertexVsMom->GetNbinsX(); i++) {
+ TH1D *tmp = hResMomVertexVsMom->ProjectionY("tmp",i,i,"e");
+ Double_t p = hResMomVertexVsMom->GetBinCenter(i);
+ gResMomVertexVsMom->SetPoint(i-1,p,100.*tmp->GetRMS()/p);
+ gResMomVertexVsMom->SetPointError(i-1,hResMomVertexVsMom->GetBinWidth(i)/2.,100.*tmp->GetRMSError()/p);
+ delete tmp;
+ }
+ for (Int_t i = 1; i <= hResMomFirstClusterVsMom->GetNbinsX(); i++) {
+ TH1D *tmp = hResMomFirstClusterVsMom->ProjectionY("tmp",i,i,"e");
+ Double_t p = hResMomFirstClusterVsMom->GetBinCenter(i);
+ f->SetParameters(1.,0.,1.);
+ f->SetParLimits(0,0.,1.e3);
+ tmp->Fit("f","WWN");
+ gResMomFirstClusterVsMom->SetPoint(i-1,p,100.*f->GetParameter(2)/p);
+ gResMomFirstClusterVsMom->SetPointError(i-1,hResMomFirstClusterVsMom->GetBinWidth(i)/2.,100.*f->GetParError(2)/p);
+ delete tmp;
+ }
+
+ // compute residual mean and dispersion
+ for (Int_t i = 0; i < AliMUONConstants::NTrackingCh(); i++) {
+ hResidualXInCh[i]->GetXaxis()->SetRangeUser(-3.*hResidualXInCh[i]->GetRMS(), 3.*hResidualXInCh[i]->GetRMS());
+ gResidualXPerChMean->SetPoint(i, i+1, hResidualXInCh[i]->GetMean());
+ gResidualXPerChMean->SetPointError(i, 0., hResidualXInCh[i]->GetMeanError());
+ gResidualXPerChSigma->SetPoint(i, i+1, hResidualXInCh[i]->GetRMS());
+ gResidualXPerChSigma->SetPointError(i, 0., hResidualXInCh[i]->GetRMSError());
+ hResidualXInCh[i]->GetXaxis()->SetRange(0,0);
+ hResidualYInCh[i]->GetXaxis()->SetRangeUser(-3.*hResidualYInCh[i]->GetRMS(), 3.*hResidualYInCh[i]->GetRMS());
+ gResidualYPerChMean->SetPoint(i, i+1, hResidualYInCh[i]->GetMean());
+ gResidualYPerChMean->SetPointError(i, 0., hResidualYInCh[i]->GetMeanError());
+ gResidualYPerChSigma->SetPoint(i, i+1, hResidualYInCh[i]->GetRMS());
+ gResidualYPerChSigma->SetPointError(i, 0., hResidualYInCh[i]->GetRMSError());
+ hResidualYInCh[i]->GetXaxis()->SetRange(0,0);
+ }
printf(" nb of reconstructible tracks: %d \n", nReconstructibleTracks);
printf(" nb of reconstructed tracks: %d \n", nReconstructedTracks);
printf(" nb of reconstructible tracks which are reconstructed: %d \n", nReconstructibleTracksCheck);
histoFile->Write();
+ histoFile->cd();
+ gResMomVertexVsMom->Write();
+ gResMomFirstClusterVsMom->Write();
+ gResidualXPerChMean->Write();
+ gResidualXPerChSigma->Write();
+ gResidualYPerChMean->Write();
+ gResidualYPerChSigma->Write();
histoFile->Close();
}
-
-Int_t TrackCheck( Bool_t *compTrack)
-{
- // Apply reconstruction requirements
- // Return number of validated conditions
- // If all the tests are verified then TrackCheck = 4 (good track)
- Int_t iTrack = 0;
- Int_t hitsInLastStations = 0;
-
- // apply reconstruction requirements
- if (compTrack[0] || compTrack[1]) iTrack++; // at least one hit in st. 0
- if (compTrack[2] || compTrack[3]) iTrack++; // at least one hit in st. 1
- if (compTrack[4] || compTrack[5]) iTrack++; // at least one hit in st. 2
- for (Int_t ch = 6; ch < AliMUONConstants::NTrackingCh(); ch++) {
- if (compTrack[ch]) hitsInLastStations++;
- }
- if (hitsInLastStations > 2) iTrack++; // at least 3 hits in st. 3 & 4
-
- return iTrack;
-
-}
-
-
-
-
-
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff