#include "TParticle.h"
#include "TTree.h"
#include <Riostream.h>
+#include <TGeoManager.h>
+#include <TROOT.h>
// STEER includes
#include "AliRun.h"
+#include "AliLog.h"
#include "AliRunLoader.h"
#include "AliHeader.h"
#include "AliLoader.h"
#include "AliStack.h"
-#include "AliMagF.h"
-#include "AliESD.h"
+#include "AliMagFMaps.h"
+#include "AliESDEvent.h"
+#include "AliESDVertex.h"
+#include "AliTracker.h"
// MUON includes
#include "AliMUONTrackParam.h"
+#include "AliMUONTrackExtrap.h"
#include "AliESDMuonTrack.h"
#endif
//
// using Invariant Mass for rapidity.
// Arguments:
+// ExtrapToVertex (default -1)
+// <0: no extrapolation;
+// =0: extrapolation to (0,0,0);
+// >0: extrapolation to ESDVertex if available, else to (0,0,0)
// FirstEvent (default 0)
// LastEvent (default 0)
// ResType (default 553)
// Add parameters and histograms for analysis
-Bool_t MUONmassPlot(char* filename = "galice.root", Int_t FirstEvent = 0, Int_t LastEvent = 10000,
- char* esdFileName = "AliESDs.root", Int_t ResType = 553,
+Bool_t MUONmassPlot(char* filename = "generated/galice.root", Int_t ExtrapToVertex = -1, char* geoFilename = "geometry.root",
+ Int_t FirstEvent = 0, Int_t LastEvent = 10000, char* esdFileName = "AliESDs.root", Int_t ResType = 553,
Float_t Chi2Cut = 100., Float_t PtCutMin = 1., Float_t PtCutMax = 10000.,
Float_t massMin = 9.17,Float_t massMax = 9.77)
{
// Float_t UpsilonMass = 9.46037;
// Float_t JPsiMass = 3.097;
- Double_t thetaX, thetaY, pYZ;
+ Int_t fCharge1, fCharge2;
Double_t fPxRec1, fPyRec1, fPzRec1, fE1;
Double_t fPxRec2, fPyRec2, fPzRec2, fE2;
- Int_t fCharge, fCharge2;
Int_t ntrackhits, nevents;
Double_t fitfmin;
Double_t fZVertex=0;
Double_t fYVertex=0;
Double_t fXVertex=0;
+ Double_t errXVtx=0;
+ Double_t errYVtx=0;
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 (!runLoader) {
- Error("MUONmass_ESD", "getting run loader from file %s failed",
- filename);
+ Error("MUONmass_ESD", "getting run loader from file %s failed", filename);
return kFALSE;
}
-
+/*
+ runLoader->LoadgAlice();
if (!gAlice) {
Error("MUONmass_ESD", "no galice object found");
return kFALSE;
}
-
+*/
// open the ESD file
TFile* esdFile = TFile::Open(esdFileName);
return kFALSE;
}
- AliESD* esd = new AliESD();
+ AliESDEvent* esd = new AliESDEvent();
TTree* tree = (TTree*) esdFile->Get("esdTree");
if (!tree) {
Error("CheckESD", "no ESD tree found");
return kFALSE;
}
- tree->SetBranchAddress("ESD", &esd);
-
+// tree->SetBranchAddress("ESD", &esd);
+ esd->ReadFromTree(tree);
runLoader->LoadHeader();
nevents = runLoader->GetNumberOfEvents();
AliMUONTrackParam trackParam;
-
+
// Loop over events
for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) {
}
// 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);
// printf("\n Nb of events analysed: %d\r",iEvent);
// 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 (!Vertex) {
- //re-extrapolate to vertex, if not kown before.
- trackParam.GetParamFrom(*muonTrack);
- trackParam.ExtrapToVertex(fXVertex, fYVertex, fZVertex);
- trackParam.SetParamFor(*muonTrack);
+ 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, errXVtx, errYVtx);
+ 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., 0., 0.);
+ trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack
}
- 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);
- fCharge = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
-
- fE1 = TMath::Sqrt(muonMass * muonMass + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
- fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
+ fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
+
+ muonTrack->LorentzP(fV1);
+
ntrackhits = muonTrack->GetNHit();
fitfmin = muonTrack->GetChi2();
// chi2 per d.o.f.
Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5);
// printf(" px %f py %f pz %f NHits %d Norm.chi2 %f charge %d\n",
-// fPxRec1, fPyRec1, fPzRec1, ntrackhits, ch1, fCharge);
+// fPxRec1, fPyRec1, fPzRec1, ntrackhits, ch1, fCharge1);
// condition for good track (Chi2Cut and PtCut)
hPMuon->Fill(p1);
hChi2PerDof->Fill(ch1);
hRapMuon->Fill(rapMuon1);
- if (fCharge > 0) {
+ 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);
-
- if (!Vertex) {
- trackParam.GetParamFrom(*muonTrack);
- trackParam.ExtrapToVertex(fXVertex, fYVertex, fZVertex);
- trackParam.SetParamFor(*muonTrack);
+ 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, errXVtx, errYVtx);
+ 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., 0., 0.);
+ trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
}
+
+ fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum()));
- thetaX = muonTrack->GetThetaX();
- thetaY = muonTrack->GetThetaY();
-
- 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()));
-
- fE2 = TMath::Sqrt(muonMass * muonMass + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
- fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
+ muonTrack2->LorentzP(fV2);
- ntrackhits = muonTrack->GetNHit();
- fitfmin = muonTrack->GetChi2();
+ ntrackhits = muonTrack2->GetNHit();
+ fitfmin = muonTrack2->GetChi2();
// transverse momentum
Float_t pt2 = fV2.Pt();
if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) {
// condition for opposite charges
- if ((fCharge * fCharge2) == -1) {
+ if ((fCharge1 * fCharge2) == -1) {
// invariant mass
fVtot = fV1 + fV2;
hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
Int_t ptTrig;
if (ResType == 553)
- ptTrig = 0x400;// mask for Hpt unlike sign pair
+ ptTrig = 0x20;// mask for Hpt unlike sign pair
else
- ptTrig = 0x200;// mask for Lpt unlike sign pair
+ ptTrig = 0x10;// mask for Lpt unlike sign pair
if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
if (invMass > massMin && invMass < massMax) {
EventInMass++;
- if (muonTrack->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig))// match with trigger
+ if (muonTrack2->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig))// match with trigger
EventInMassMatch++;
hRapResonance->Fill(fVtot.Rapidity());
hPtResonance->Fill(fVtot.Pt());
}
- } // if (fCharge * fCharge2) == -1)
+ } // 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);
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff