X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=MUON%2FMUONefficiency.C;h=6ed1bccf300d1bd477090f7cd2777afdfe975b6e;hb=084cc73397ebd2a451e4ead3b5b650fbae0ea8d0;hp=74b6f421beedfbe00b7e97f605f01de6c972da85;hpb=8cde4af5f2c90b69798a53593a37b9c8b1e835f8;p=u%2Fmrichter%2FAliRoot.git diff --git a/MUON/MUONefficiency.C b/MUON/MUONefficiency.C index 74b6f421bee..6ed1bccf300 100644 --- a/MUON/MUONefficiency.C +++ b/MUON/MUONefficiency.C @@ -15,70 +15,72 @@ /* $Id$ */ -// 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 #include +#include +#include +#include -// 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 "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(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 ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000, - char* geoFilename = "geometry.root", char* esdFileName = "AliESDs.root", char* filename = "galice.root") -{ // MUONefficiency starts + // MUONefficiency starts Double_t MUON_MASS = 0.105658369; Double_t UPSILON_MASS = 9.4603 ; @@ -173,8 +175,9 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir 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; @@ -189,16 +192,42 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir if (!gGeoManager) { TGeoManager::Import(geoFilename); if (!gGeoManager) { - Error("MUONmass_ESD", "getting geometry from file %s failed", filename); + Error("MUONefficiency", "getting geometry from file %s failed", geoFilename); 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 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); @@ -213,23 +242,13 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir 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; @@ -309,8 +328,7 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir // 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; } @@ -321,6 +339,8 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir fZVertex = Vertex->GetZv(); fYVertex = Vertex->GetYv(); fXVertex = Vertex->GetXv(); + errXVtx = Vertex->GetXRes(); + errYVtx = Vertex->GetYRes(); } hPrimaryVertex->Fill(fZVertex); @@ -332,22 +352,23 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir cout << " number of tracks: " << nTracks <GetMuonTrack(iTrack)->ContainTrackerData()) continue; + AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack))); // extrapolate to vertex if required and available if (ExtrapToVertex > 0 && Vertex->GetNContributors()) { - trackParam.GetParamFrom(*muonTrack); - AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex); - trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack + 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){ - trackParam.GetParamFrom(*muonTrack); - AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0.); - trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack + 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 @@ -358,17 +379,9 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir 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(); @@ -385,7 +398,7 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir // 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) @@ -399,26 +412,29 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir 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++) { + // skip ghosts + if (!esd->GetMuonTrack(iTrack2)->ContainTrackerData()) continue; + AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2))); // extrapolate to vertex if required and available if (ExtrapToVertex > 0 && Vertex->GetNContributors()) { - trackParam.GetParamFrom(*muonTrack2); - AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex); - trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack + 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){ - trackParam.GetParamFrom(*muonTrack2); - AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0.); - trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack + 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 = muonTrack2->GetMatchTrigger(); @@ -427,17 +443,9 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir else track2TriggerChi2 = 0. ; - thetaX = muonTrack2->GetThetaX(); - thetaY = muonTrack2->GetThetaY(); - - pYZ = 1./TMath::Abs(muonTrack2->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.,muonTrack2->GetInverseBendingMomentum())); - fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2); - fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2); + muonTrack2->LorentzP(fV2); ntrackhits = muonTrack2->GetNHit(); fitfmin = muonTrack2->GetChi2(); @@ -477,9 +485,9 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir //trigger info if (ResType == 553) - ptTrig = 0x20;// mask for Hpt unlike sign pair + ptTrig = 0x08;// mask for Hpt unlike sign pair else if (ResType == 443) - ptTrig = 0x10;// mask for Lpt unlike sign pair + ptTrig = 0x04;// mask for Lpt unlike sign pair if (esd->GetTriggerMask() & ptTrig) NbTrigger++; @@ -490,7 +498,7 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir hPtResonance->Fill(fVtot.Pt()); // match with trigger - if (muonTrack2->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++; + if (muonTrack2->GetMatchTrigger()>=0 && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++; } @@ -591,7 +599,17 @@ Bool_t MUONefficiency( Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t Fir 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 ["<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 ["<