#include "TTree.h"
#include "TString.h"
#include <Riostream.h>
+#include <TGeoManager.h>
+#include <TROOT.h>
// STEER includes
#include "AliRun.h"
#include "AliHeader.h"
#include "AliLoader.h"
#include "AliStack.h"
-#include "AliMagF.h"
+#include "AliMagFMaps.h"
#include "AliESD.h"
+#include "AliTracker.h"
// MUON includes
+#include "AliMUONTrackParam.h"
+#include "AliMUONTrackExtrap.h"
#include "AliESDMuonTrack.h"
#endif
+// Arguments:
+// ExtrapToVertex (default -1)
+// <0: no extrapolation;
+// =0: extrapolation to (0,0,0);
+// >0: extrapolation to ESDVertex if available, else to (0,0,0)
+// ResType (default 553)
+// 553 for Upsilon, anything else for J/Psi
-Bool_t MUONefficiency( Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000,
- char* esdFileName = "AliESDs.root", char* filename = "galice.root")
+Bool_t MUONefficiency( char* filename = "galice.root", char* geoFilename = "geometry.root", char* esdFileName = "AliESDs.root",
+ Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000 )
{ // MUONefficiency starts
Double_t MUON_MASS = 0.105658369;
// Printing Level
Int_t PRINTLEVEL = 0 ;
- Int_t SELECT = 0 ; // not used
//for kinematic, i.e. reference tracks
TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz");
hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange);
-
+ TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15);
TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.);
TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5);
TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2);
Int_t NbTrigger = 0;
Int_t ptTrig = 0;
- Double_t thetaX, thetaY, pYZ;
+ Double_t fXVertex=0;
+ Double_t fYVertex=0;
+ Double_t fZVertex=0;
+
Double_t fPxRec1, fPyRec1, fPzRec1, fE1;
Double_t fPxRec2, fPyRec2, fPzRec2, fE2;
Int_t fCharge1, fCharge2;
TLorentzVector fV1, fV2, fVtot;
- // set off mag field
- AliMagF::SetReadField(kFALSE);
+ // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex)
+ if (!gGeoManager) {
+ TGeoManager::Import(geoFilename);
+ if (!gGeoManager) {
+ Error("MUONmass_ESD", "getting geometry from file %s failed", filename);
+ return kFALSE;
+ }
+ }
+
+ // 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);
// open run loader and load gAlice, kinematics and header
AliRunLoader* runLoader = AliRunLoader::Open(filename);
if (!tree) {
Error("CheckESD", "no ESD tree found");
return kFALSE;
- }
- tree->SetBranchAddress("ESD", &esd);
+ }
+ esd->ReadFromTree(tree);
runLoader->LoadHeader();
nevents = runLoader->GetNumberOfEvents();
-
+ AliMUONTrackParam trackParam;
+
// to access the particle Stack
runLoader->LoadKinematics("READ");
TParticle *particle;
- Int_t track1Id = 0 ;
- Int_t track1PDGId = 0 ;
- Int_t track1MotherId = 0 ;
- Int_t track1MotherPDGId = 0 ;
Int_t track1Trigger = 0 ;
Float_t track1TriggerChi2 = 0 ;
- Int_t track2Id = 0 ;
- Int_t track2PDGId = 0 ;
- Int_t track2MotherId = 0 ;
- Int_t track2MotherPDGId = 0 ;
Int_t track2Trigger = 0 ;
Float_t track2TriggerChi2 = 0 ;
Int_t ntracks = theStack->GetNtrack();
if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent);
- if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ;
-
+ if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ;
for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles
particle = theStack->Particle(iparticle);
Error("CheckESD", "no ESD object found for event %d", iEvent);
return kFALSE;
}
-
- Int_t triggerWord = esd->GetTrigger();
+
+ // get the SPD reconstructed vertex (vertexer) and fill the histogram
+ AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex();
+ if (Vertex->GetNContributors()) {
+ fZVertex = Vertex->GetZv();
+ fYVertex = Vertex->GetYv();
+ fXVertex = Vertex->GetXv();
+ }
+ hPrimaryVertex->Fill(fZVertex);
+
+ Int_t triggerWord = esd->GetTriggerMask();
Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ;
if (PRINTLEVEL > 0){
cout << " number of tracks: " << nTracks <<endl;
}
+ // set the magnetic field for track extrapolations
+ AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap());
// loop over all reconstructed tracks (also first track of combination)
for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
- AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack);
-
- //if (PRINTLEVEL > 5) cout << "1st muonTrack->GetTrackID() : " << track1Id << endl;
-
- if(SELECT && track1Id) {
- particle = theStack->Particle(track1Id);
- track1PDGId = particle->GetPdgCode() ;
- track1MotherId = particle->GetFirstMother();
- if (track1MotherId >=0 )
- track1MotherPDGId = ((TParticle*) theStack->Particle(track1MotherId))->GetPdgCode();
- if (PRINTLEVEL > 0) cout << "track1MotherPDGId = " << track1MotherPDGId << endl ;
+ AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack)));
+
+ // extrapolate to vertex if required and available
+ if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
+ trackParam.GetParamFromUncorrected(*muonTrack);
+ AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex);
+ trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack
+ } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
+ trackParam.GetParamFromUncorrected(*muonTrack);
+ AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0.);
+ trackParam.SetParamFor(*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);
- //Int_t track2Id = muonTrack->GetTrackID();
- //if (PRINTLEVEL > 5) cout << "2nd muonTrack->GetTrackID() : " << track2Id << endl;
-
- if(SELECT && track2Id) {
- particle = theStack->Particle(track2Id);
- track2PDGId = particle->GetPdgCode();
- track2MotherId = particle->GetFirstMother();
- if (track2MotherId >=0 )
- track2MotherPDGId = ((TParticle*) theStack->Particle(track2MotherId))->GetPdgCode();
+ AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2)));
+
+ // extrapolate to vertex if required and available
+ if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
+ trackParam.GetParamFromUncorrected(*muonTrack2);
+ AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex);
+ trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
+ } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
+ trackParam.GetParamFromUncorrected(*muonTrack2);
+ AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0.);
+ trackParam.SetParamFor(*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();
// chi2 per d.o.f.
Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5);
- if (PRINTLEVEL > 5) cout << "track1MotherId : "<< track1MotherId << " track2MotherId : " << track2MotherId << endl ;
- if (PRINTLEVEL > 5) cout << "track1MotherPDGId : " << track1MotherPDGId << " track2MotherPDGId : " << track2MotherPDGId << endl ;
-
- // Select Condition
- if (!SELECT || (track2MotherId == track1MotherId && track2MotherPDGId == ResType && TMath::Abs(track1PDGId)==13 && TMath::Abs(track2PDGId)==13 )) {
- // condition for good track (Chi2Cut and PtCut)
- if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) {
+ // condition for good track (Chi2Cut and PtCut)
+ if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) {
- // condition for opposite charges
- if ((fCharge1 * fCharge2) == -1) {
-
- if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ;
-
- // invariant mass
- fVtot = fV1 + fV2;
- Float_t invMass = fVtot.M();
+ // condition for opposite charges
+ if ((fCharge1 * fCharge2) == -1) {
+
+ if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ;
+
+ // invariant mass
+ fVtot = fV1 + fV2;
+ Float_t invMass = fVtot.M();
+
+ if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple
+ Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2};
+ ESDtuple->Fill(ESDFill);
+ }
+ else{
+ Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2};
+ ESDtuple->Fill(ESDFill);
+ }
+
+ // fill histos hInvMassAll and hInvMassRes
+ hInvMassAll->Fill(invMass);
+ hInvMassRes->Fill(invMass);
+ hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
+
+ //trigger info
+ if (ResType == 553)
+ ptTrig = 0x20;// mask for Hpt unlike sign pair
+ else if (ResType == 443)
+ ptTrig = 0x10;// mask for Lpt unlike sign pair
+
+
+ if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
+
+ if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) {
+ EventInMass++;
+ hRapResonance->Fill(fVtot.Rapidity());
+ hPtResonance->Fill(fVtot.Pt());
- if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple
- Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2};
- ESDtuple->Fill(ESDFill);
- }
- else{
- Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2};
- ESDtuple->Fill(ESDFill);
- }
+ // match with trigger
+ if (muonTrack2->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
- // fill histos hInvMassAll and hInvMassRes
- hInvMassAll->Fill(invMass);
- hInvMassRes->Fill(invMass);
- hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
-
- //trigger info
- if (ResType == 553)
- ptTrig = 0x400;// 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
-
-
- if (esd->GetTrigger() & ptTrig) NbTrigger++;
-
- if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) {
- EventInMass++;
- hRapResonance->Fill(fVtot.Rapidity());
- hPtResonance->Fill(fVtot.Pt());
-
- // match with trigger
- if (muonTrack->GetMatchTrigger() && (esd->GetTrigger() & ptTrig)) EventInMassMatch++;
-
- }
-
- } // if (fCharge1 * fCharge2) == -1)
- } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax))
- } // if (track2MotherId == track1MotherId && track2MotherPDGId == ResType)
+ }
+
+ } // 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);
ntupleFile->Close();
TFile *histoFile = new TFile("MUONhistos.root", "RECREATE");
+ hPrimaryVertex->Write();
hPtMuon->Write();
hPtMuonPlus->Write();
hPtMuonMinus->Write();
return kTRUE;
}
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff