/* $Id$ */
-// Macro (upgraded version of MUONmassPlot_ESD.C, better handling of Jpsi) to make :
-// 1) Ntuple (Ktuple) containing Upsilon kinematics variables (from kinematics.root files)
-// 2) Ntuple (ESDtuple) containing Upsilon kinematics variables from reconstruction and
-// combinations of 2 muons with opposite charges (ESDtupleBck will be used later)
-// 3) Some QA histograms
-// Ntuple are stored in the file MUONefficiency.root and ESD tree and QA histograms in AliESDs.root
+/// \ingroup macros
+/// \file MUONefficiency.C
+/// \brief add brief description
+///
+/// Macro (upgraded version of MUONmassPlot_ESD.C, better handling of Jpsi) to make :
+/// - Ntuple (Ktuple) containing Upsilon kinematics variables (from kinematics.root files)
+/// - Ntuple (ESDtuple) containing Upsilon kinematics variables from reconstruction and
+/// combinations of 2 muons with opposite charges (ESDtupleBck will be used later)
+/// - Some QA histograms
+/// Ntuple are stored in the file MUONefficiency.root and ESD tree and QA histograms in AliESDs.root
+///
+/// \author Christophe Suire, IPN Orsay
-// Christophe Suire, IPN Orsay
+#if !defined(__CINT__) || defined(__MAKECINT__)
-// Arguments:
-// FirstEvent (default 0)
-// LastEvent (default 1.e6)
-// ResType (default 553)
-// 553 for Upsilon, 443 for J/Psi
-// Chi2Cut (default 100)
-// to keep only tracks with chi2 per d.o.f. < Chi2Cut
-
+// MUON includes
+#include "AliMUONCDB.h"
+#include "AliMUONTrackParam.h"
+#include "AliMUONTrackExtrap.h"
+#include "AliMUONESDInterface.h"
+// STEER includes
+#include "AliRun.h"
+#include "AliRunLoader.h"
+#include "AliHeader.h"
+#include "AliLoader.h"
+#include "AliStack.h"
+#include "AliESDEvent.h"
+#include "AliESDVertex.h"
+#include "AliCDBManager.h"
+#include "AliESDMuonTrack.h"
-#if !defined(__CINT__) || defined(__MAKECINT__)
// ROOT includes
#include "TTree.h"
#include "TNtuple.h"
-#include "TBranch.h"
-#include "TClonesArray.h"
#include "TLorentzVector.h"
#include "TFile.h"
#include "TH1.h"
#include "TH2.h"
#include "TParticle.h"
-#include "TTree.h"
#include "TString.h"
#include <Riostream.h>
+#include <TGeoManager.h>
+#include <TROOT.h>
+#include <TF1.h>
+#include <TMath.h>
-// STEER includes
-#include "AliRun.h"
-#include "AliRunLoader.h"
-#include "AliHeader.h"
-#include "AliLoader.h"
-#include "AliStack.h"
-#include "AliMagFMaps.h"
-#include "AliESD.h"
-#include "AliTracker.h"
-
-// MUON includes
-#include "AliMUONTrackParam.h"
-#include "AliESDMuonTrack.h"
#endif
+Bool_t MUONefficiency(const char* filename = "generated/galice.root", const char* esdFileName = "AliESDs.root",
+ const char* geoFilename = "generated/geometry.root", const char* ocdbPath = "local://$ALICE_ROOT/OCDB",
+ Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000 )
+{
+/// \param ExtrapToVertex (default -1)
+/// - <0: no extrapolation;
+/// - =0: extrapolation to (0,0,0);
+/// - >0: extrapolation to ESDVertex if available, else to (0,0,0)
+/// \param ResType 553 for Upsilon, 443 for J/Psi (default 553)
+/// \param FirstEvent (default 0)
+/// \param LastEvent (default 1.e6)
+/// \param Chi2Cut to keep only tracks with chi2 per d.o.f. < Chi2Cut (default 100)
-Bool_t MUONefficiency( Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000,
- char* esdFileName = "AliESDs.root", char* filename = "galice.root")
-{ // MUONefficiency starts
+
+ // MUONefficiency starts
Double_t MUON_MASS = 0.105658369;
Double_t UPSILON_MASS = 9.4603 ;
Double_t fXVertex=0;
Double_t fYVertex=0;
Double_t fZVertex=0;
+ Double_t errXVtx=0;
+ Double_t errYVtx=0;
- Double_t thetaX, thetaY, pYZ;
Double_t fPxRec1, fPyRec1, fPzRec1, fE1;
Double_t fPxRec2, fPyRec2, fPzRec2, fE2;
Int_t fCharge1, fCharge2;
TLorentzVector fV1, fV2, fVtot;
- // set mag field
- // waiting for mag field in CDB
- printf("Loading field map...\n");
- AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k4kG);
- AliTracker::SetFieldMap(field, kFALSE);
+ // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex)
+ if (!gGeoManager) {
+ TGeoManager::Import(geoFilename);
+ if (!gGeoManager) {
+ Error("MUONefficiency", "getting geometry from file %s failed", geoFilename);
+ return kFALSE;
+ }
+ }
+
+ // open the ESD file
+ TFile* esdFile = TFile::Open(esdFileName);
+ if (!esdFile || !esdFile->IsOpen()) {
+ Error("MUONefficiency", "opening ESD file %s failed", esdFileName);
+ return kFALSE;
+ }
+
+ AliESDEvent* esd = new AliESDEvent();
+ TTree* tree = (TTree*) esdFile->Get("esdTree");
+ if (!tree) {
+ Error("MUONefficiency", "no ESD tree found");
+ return kFALSE;
+ }
+ esd->ReadFromTree(tree);
+
+ // get run number
+ if (tree->GetEvent(0) <= 0) {
+ Error("MUONefficiency", "no ESD object found for event 0");
+ return kFALSE;
+ }
+ Int_t runNumber = esd->GetRunNumber();
+
+ // load necessary data from OCDB
+ AliCDBManager::Instance()->SetDefaultStorage(ocdbPath);
+ AliCDBManager::Instance()->SetSpecificStorage("GRP/GRP/Data",
+ Form("local://%s",gSystem->pwd()));
+ AliCDBManager::Instance()->SetRun(runNumber);
+ if (!AliMUONCDB::LoadField()) return kFALSE;
+
+ // set the magnetic field for track extrapolations
+ AliMUONTrackExtrap::SetField();
// open run loader and load gAlice, kinematics and header
AliRunLoader* runLoader = AliRunLoader::Open(filename);
Error("MUONefficiency", "no galice object found");
return kFALSE;
}
-
- // open the ESD file
- TFile* esdFile = TFile::Open(esdFileName);
- if (!esdFile || !esdFile->IsOpen()) {
- Error("MUONefficiency", "opening ESD file %s failed", esdFileName);
- return kFALSE;
- }
-
- AliESD* esd = new AliESD();
- TTree* tree = (TTree*) esdFile->Get("esdTree");
- if (!tree) {
- Error("CheckESD", "no ESD tree found");
+
+ runLoader->LoadHeader();
+ if (runNumber != runLoader->GetHeader()->GetRun()) {
+ Error("MUONefficiency", "mismatch between run number from ESD and from runLoader");
return kFALSE;
}
- tree->SetBranchAddress("ESD", &esd);
- runLoader->LoadHeader();
nevents = runLoader->GetNumberOfEvents();
AliMUONTrackParam trackParam;
// get the event summary data
- tree->GetEvent(iEvent);
- if (!esd) {
+ if (tree->GetEvent(iEvent) <= 0) {
Error("CheckESD", "no ESD object found for event %d", iEvent);
return kFALSE;
}
// get the SPD reconstructed vertex (vertexer) and fill the histogram
- AliESDVertex* Vertex = (AliESDVertex*) esd->AliESD::GetVertex();
- if (Vertex) {
+ AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex();
+ if (Vertex->GetNContributors()) {
fZVertex = Vertex->GetZv();
fYVertex = Vertex->GetYv();
fXVertex = Vertex->GetXv();
+ errXVtx = Vertex->GetXRes();
+ errYVtx = Vertex->GetYRes();
}
hPrimaryVertex->Fill(fZVertex);
// loop over all reconstructed tracks (also first track of combination)
for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
- AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack);
+ // skip ghosts
+ if (!esd->GetMuonTrack(iTrack)->ContainTrackerData()) continue;
+
+ AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack)));
- if (!Vertex) {
- //re-extrapolate to vertex, if not kown before.
- trackParam.GetParamFrom(*muonTrack);
- trackParam.ExtrapToVertex(fXVertex, fYVertex, fZVertex);
- trackParam.SetParamFor(*muonTrack);
+ // extrapolate to vertex if required and available
+ if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
+ AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack, trackParam);
+ AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx);
+ AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack); // put the new parameters in this copy of AliESDMuonTrack
+ } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
+ AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack, trackParam);
+ AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.);
+ AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack); // put the new parameters in this copy of AliESDMuonTrack
}
// Trigger
else
track1TriggerChi2 = 0. ;
- thetaX = muonTrack->GetThetaX();
- thetaY = muonTrack->GetThetaY();
-
- pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum());
- fPzRec1 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaY));
- fPxRec1 = fPzRec1 * TMath::Tan(thetaX);
- fPyRec1 = fPzRec1 * TMath::Tan(thetaY);
fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
- fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
- fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
+ muonTrack->LorentzP(fV1);
ntrackhits = muonTrack->GetNHit();
fitfmin = muonTrack->GetChi2();
// chi2 per d.o.f.
Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5);
- if (PRINTLEVEL > 5 ) printf(" px %f py %f pz %f pt %f NHits %d Norm.chi2 %f charge %d\n",fPxRec1, fPyRec1, fPzRec1, pt1, ntrackhits, ch1, fCharge1);
+ if (PRINTLEVEL > 5 ) printf(" px %f py %f pz %f pt %f NHits %d Norm.chi2 %f charge %d\n",fV1.Px(), fV1.Py(), fV1.Pz(), pt1, ntrackhits, ch1, fCharge1);
if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut)
if (fCharge1 > 0) {
hPtMuonPlus->Fill(pt1);
- hThetaPhiPlus->Fill(TMath::ATan2(fPyRec1,fPxRec1)*180./TMath::Pi(),TMath::ATan2(pt1,fPzRec1)*180./3.1415);
+ hThetaPhiPlus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi());
} else {
hPtMuonMinus->Fill(pt1);
- hThetaPhiMinus->Fill(TMath::ATan2(fPyRec1,fPxRec1)*180./TMath::Pi(),TMath::ATan2(pt1,fPzRec1)*180./3.1415);
+ hThetaPhiMinus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi());
}
// loop over second track of combination
for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) {
- AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack2);
+ // skip ghosts
+ if (!esd->GetMuonTrack(iTrack2)->ContainTrackerData()) continue;
+
+ AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2)));
- if (!Vertex) {
- trackParam.GetParamFrom(*muonTrack);
- trackParam.ExtrapToVertex(fXVertex, fYVertex, fZVertex);
- trackParam.SetParamFor(*muonTrack);
+ // extrapolate to vertex if required and available
+ if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
+ AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack2, trackParam);
+ AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx);
+ AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
+ } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
+ AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack2, trackParam);
+ AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.);
+ AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
}
- track2Trigger = muonTrack->GetMatchTrigger();
+ track2Trigger = muonTrack2->GetMatchTrigger();
if (track2Trigger)
- track2TriggerChi2 = muonTrack->GetChi2MatchTrigger();
+ track2TriggerChi2 = muonTrack2->GetChi2MatchTrigger();
else
track2TriggerChi2 = 0. ;
- thetaX = muonTrack->GetThetaX();
- thetaY = muonTrack->GetThetaY();
+ fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum()));
- pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum());
- fPzRec2 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaY));
- fPxRec2 = fPzRec2 * TMath::Tan(thetaX);
- fPyRec2 = fPzRec2 * TMath::Tan(thetaY);
- fCharge2 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
+ muonTrack2->LorentzP(fV2);
- fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
- fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
-
- ntrackhits = muonTrack->GetNHit();
- fitfmin = muonTrack->GetChi2();
+ ntrackhits = muonTrack2->GetNHit();
+ fitfmin = muonTrack2->GetChi2();
// transverse momentum
Float_t pt2 = fV2.Pt();
//trigger info
if (ResType == 553)
- ptTrig = 0x400;// mask for Hpt unlike sign pair
+ ptTrig = 0x08;// mask for Hpt unlike sign pair
else if (ResType == 443)
- ptTrig = 0x800;// mask for Apt unlike sign pair
- else
- ptTrig = 0x200;// mask for Lpt unlike sign pair
+ ptTrig = 0x04;// mask for Lpt unlike sign pair
if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
hPtResonance->Fill(fVtot.Pt());
// match with trigger
- if (muonTrack->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
+ if (muonTrack2->GetMatchTrigger()>=0 && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
}
} // if (fCharge1 * fCharge2) == -1)
} // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax))
+ delete muonTrack2;
} // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++)
} // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) )
+ delete muonTrack;
} // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++)
hNumberOfTrack->Fill(nTracks);
cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl;
cout << "PtCutMin for muon tracks = " << PtCutMin << endl;
cout << "PtCutMax for muon tracks = " << PtCutMax << endl;
- cout << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl;
+
+ cout << "Entries (unlike sign dimuons) : " << hInvMassAll->GetEntries();
+
+ if (hInvMassAll->GetEntries() > 0) {
+ hInvMassAll->Fit("gaus","q0");
+ TF1* f1 = hInvMassAll->GetFunction("gaus");
+ cout << Form(". Rough sigma = %7.2f MeV/c2",f1->GetParameter(2)*1000.0);
+ }
+
+ cout << endl << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl;
+
if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ;
if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ;
if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ;
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff