X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=blobdiff_plain;f=MUON%2FMUONmassPlot_ESD.C;h=5b30efc9212965b12beb01ab0a18044aa840b8fd;hp=e2a5979954d3664557932a1379b0cdae781f9779;hb=745851289deea658a72e1aba6bf96eb184c4d9a4;hpb=6b092dfc5b92d57f52172c8c08f1c01fa953c513 diff --git a/MUON/MUONmassPlot_ESD.C b/MUON/MUONmassPlot_ESD.C index e2a5979954d..5b30efc9212 100644 --- a/MUON/MUONmassPlot_ESD.C +++ b/MUON/MUONmassPlot_ESD.C @@ -14,60 +14,56 @@ #include // STEER includes -#include "AliRun.h" #include "AliLog.h" -#include "AliRunLoader.h" -#include "AliHeader.h" -#include "AliLoader.h" -#include "AliStack.h" -#include "AliMagFMaps.h" -#include "AliESD.h" -#include "AliTracker.h" +#include "AliCDBManager.h" +#include "AliESDEvent.h" +#include "AliESDVertex.h" +#include "AliESDMuonTrack.h" // MUON includes +#include "AliMUONCDB.h" #include "AliMUONTrackParam.h" #include "AliMUONTrackExtrap.h" -#include "AliESDMuonTrack.h" +#include "AliMUONESDInterface.h" #endif -// -// Macro MUONmassPlot.C for ESD -// Ch. Finck, Subatech, April. 2004 -// - -// macro to make invariant mass plots -// for combinations of 2 muons with opposite charges, -// from root file "MUON.tracks.root" containing the result of track reconstruction. -// Histograms are stored on the "MUONmassPlot.root" file. -// introducing TLorentzVector for parameter calculations (Pt, P,rap,etc...) -// 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) -// 553 for Upsilon, anything else for J/Psi -// Chi2Cut (default 100) -// to keep only tracks with chi2 per d.o.f. < Chi2Cut -// PtCutMin (default 1) -// to keep only tracks with transverse momentum > PtCutMin -// PtCutMax (default 10000) -// to keep only tracks with transverse momentum < PtCutMax -// massMin (default 9.17 for Upsilon) -// & massMax (default 9.77 for Upsilon) -// to calculate the reconstruction efficiency for resonances with invariant mass -// massMin < mass < massMax. - -// Add parameters and histograms for analysis - -Bool_t MUONmassPlot(char* filename = "galice_sim.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) + +/// \ingroup macros +/// \file MUONmassPlot_ESD.C +/// \brief Macro MUONmassPlot_ESD.C for ESD +/// +/// \author Ch. Finck, Subatech, April. 2004 +/// +/// +/// Macro to make invariant mass plots +/// for combinations of 2 muons with opposite charges, +/// from root file "MUON.tracks.root" containing the result of track reconstruction. +/// Histograms are stored on the "MUONmassPlot.root" file. +/// introducing TLorentzVector for parameter calculations (Pt, P,rap,etc...) +/// using Invariant Mass for rapidity. +/// +/// Add parameters and histograms for analysis + +Bool_t MUONmassPlot(const char* esdFileName = "AliESDs.root", const char* geoFilename = "geometry.root", + const char* ocdbPath = "local://$ALICE_ROOT/OCDB", + Int_t FirstEvent = 0, Int_t LastEvent = 10000, Int_t ExtrapToVertex = -1, + 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) { + /// \param FirstEvent (default 0) + /// \param LastEvent (default 10000) + /// \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, anything else for J/Psi (default 553) + /// \param Chi2Cut to keep only tracks with chi2 per d.o.f. < Chi2Cut (default 100) + /// \param PtCutMin to keep only tracks with transverse momentum > PtCutMin (default 1) + /// \param PtCutMax to keep only tracks with transverse momentum < PtCutMax (default 10000) + /// \param massMin (default 9.17 for Upsilon) + /// \param massMax (default 9.77 for Upsilon); + /// to calculate the reconstruction efficiency for resonances with invariant mass + /// massMin < mass < massMax. + cout << "MUONmassPlot " << endl; cout << "FirstEvent " << FirstEvent << endl; cout << "LastEvent " << LastEvent << endl; @@ -123,84 +119,74 @@ Bool_t MUONmassPlot(char* filename = "galice_sim.root", Int_t ExtrapToVertex = - Double_t fPxRec1, fPyRec1, fPzRec1, fE1; Double_t fPxRec2, fPyRec2, fPzRec2, fE2; - Int_t ntrackhits, nevents; + Int_t ntrackhits; 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; - + // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex) if (!gGeoManager) { TGeoManager::Import(geoFilename); if (!gGeoManager) { - Error("MUONmass_ESD", "getting geometry from file %s failed", filename); + Error("MUONmass_ESD", "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 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); - return kFALSE; - } -/* - runLoader->LoadgAlice(); - if (!gAlice) { - Error("MUONmass_ESD", "no galice object found"); - return kFALSE; - } -*/ - // open the ESD file TFile* esdFile = TFile::Open(esdFileName); if (!esdFile || !esdFile->IsOpen()) { Error("MUONmass_ESD", "opening ESD file %s failed", 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"); + Error("MUONmass_ESD", "no ESD tree found"); return kFALSE; } - tree->SetBranchAddress("ESD", &esd); + esd->ReadFromTree(tree); + // get run number + if (tree->GetEvent(0) <= 0) { + Error("MUONmass_ESD", "no ESD object found for event 0"); + return kFALSE; + } + Int_t runNumber = esd->GetRunNumber(); - - runLoader->LoadHeader(); - nevents = runLoader->GetNumberOfEvents(); + // load necessary data from OCDB + AliCDBManager::Instance()->SetDefaultStorage(ocdbPath); + AliCDBManager::Instance()->SetRun(runNumber); + if (!AliMUONCDB::LoadField()) return kFALSE; + + // set the magnetic field for track extrapolations + AliMUONTrackExtrap::SetField(); AliMUONTrackParam trackParam; // Loop over events + Int_t nevents = (Int_t)tree->GetEntries(); for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { - // get current event - runLoader->GetEvent(iEvent); - // get the event summary data - tree->GetEvent(iEvent); - if (!esd) { - Error("CheckESD", "no ESD object found for event %d", iEvent); + if (tree->GetEvent(iEvent) <= 0) { + Error("MUONmass_ESD", "no ESD object found for event %d", 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); @@ -209,22 +195,23 @@ Bool_t MUONmassPlot(char* filename = "galice_sim.root", Int_t ExtrapToVertex = - // printf("\n Nb of events analysed: %d\r",iEvent); // 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.GetParamFromUncorrected(*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.GetParamFromUncorrected(*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 } fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum())); @@ -250,7 +237,7 @@ Bool_t MUONmassPlot(char* filename = "galice_sim.root", Int_t ExtrapToVertex = - // condition for good track (Chi2Cut and PtCut) - if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { +// if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // fill histos hPtMuon and hChi2PerDof hPtMuon->Fill(pt1); @@ -267,17 +254,20 @@ Bool_t MUONmassPlot(char* filename = "galice_sim.root", Int_t ExtrapToVertex = - // 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.GetParamFromUncorrected(*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.GetParamFromUncorrected(*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 } fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum())); @@ -294,7 +284,7 @@ Bool_t MUONmassPlot(char* filename = "galice_sim.root", Int_t ExtrapToVertex = - Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5); // condition for good track (Chi2Cut and PtCut) - if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) { +// if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) { // condition for opposite charges if ((fCharge1 * fCharge2) == -1) { @@ -324,10 +314,10 @@ Bool_t MUONmassPlot(char* filename = "galice_sim.root", Int_t ExtrapToVertex = - } } // if (fCharge1 * fCharge2) == -1) - } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) +// } // 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) ) +// } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) ) delete muonTrack; } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++)