#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)
{
//Reset ROOT and connect tree file
gROOT->Reset();
-
// File for histograms and histogram booking
TFile *histoFile = new TFile("MUONmassPlot.root", "RECREATE");
TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", 100, 0., 20.);
TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.);
TH1F *hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", 480, 0., 12.);
TH1F *hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", 480, 0., 12.);
-TH2F *hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",480,0.,12.,80,0.,20.);
-TH2F *hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",480,0.,12.,80,0.,20.);
-TH1F *hInvMassRes;
+ TH2F *hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",480,0.,12.,80,0.,20.);
+ TH2F *hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",480,0.,12.,80,0.,20.);
+ TH1F *hInvMassRes;
+ TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15);
if (ResType == 553) {
hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Upsilon", 60, 8., 11.);
// settings
Int_t EventInMass = 0;
+ Int_t EventInMassMatch = 0;
+ Int_t NbTrigger = 0;
+
Float_t muonMass = 0.105658389;
// 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();
- gAlice = runLoader->GetAliRun();
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++) {
return kFALSE;
}
+ // 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();
+ errXVtx = Vertex->GetXRes();
+ errYVtx = Vertex->GetYRes();
+ }
+ hPrimaryVertex->Fill(fZVertex);
+
Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ;
// 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);
-
- thetaX = muonTrack->GetThetaX();
- thetaY = muonTrack->GetThetaY();
+ AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack)));
- pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum());
- fPzRec1 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaX));
- 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);
+ // 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
+ }
+ 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);
-
- thetaX = muonTrack->GetThetaX();
- thetaY = muonTrack->GetThetaY();
-
- pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum());
- fPzRec2 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaX));
- fPxRec2 = fPzRec2 * TMath::Tan(thetaX);
- fPyRec2 = fPzRec2 * TMath::Tan(thetaY);
- fCharge2 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
+ 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()));
- 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->Fill(invMass);
hInvMassRes->Fill(invMass);
hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
+ Int_t ptTrig;
+ if (ResType == 553)
+ ptTrig = 0x20;// mask for Hpt unlike sign pair
+ else
+ ptTrig = 0x10;// mask for Lpt unlike sign pair
+
+ if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
if (invMass > massMin && invMass < massMax) {
EventInMass++;
+ 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);
histoFile->Write();
histoFile->Close();
- cout << "MUONmassPlot " << endl;
- cout << "FirstEvent " << FirstEvent << endl;
- cout << "LastEvent " << LastEvent << endl;
- cout << "ResType " << ResType << endl;
- cout << "Chi2Cut " << Chi2Cut << endl;
- cout << "PtCutMin " << PtCutMin << endl;
- cout << "PtCutMax " << PtCutMax << endl;
- cout << "massMin " << massMin << endl;
- cout << "massMax " << massMax << endl;
+ cout << endl;
cout << "EventInMass " << EventInMass << endl;
+ cout << "NbTrigger " << NbTrigger << endl;
+ cout << "EventInMass match with trigger " << EventInMassMatch << endl;
return kTRUE;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff