#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( 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
Double_t MUON_MASS = 0.105658369;
Double_t fYVertex=0;
Double_t fZVertex=0;
- Double_t thetaX, thetaY, pYZ;
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);
}
// 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();
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);
+ 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);
+ AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2)));
- if (!Vertex) {
- trackParam.GetParamFrom(*muonTrack);
- trackParam.ExtrapToVertex(fXVertex, fYVertex, fZVertex);
- trackParam.SetParamFor(*muonTrack);
+ // 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();
-
- 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()));
+ 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 = muonTrack->GetNHit();
- fitfmin = muonTrack->GetChi2();
+ ntrackhits = muonTrack2->GetNHit();
+ fitfmin = muonTrack2->GetChi2();
// transverse momentum
Float_t pt2 = fV2.Pt();
//trigger info
if (ResType == 553)
- ptTrig = 0x400;// mask for Hpt unlike sign pair
+ ptTrig = 0x20;// 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
+ ptTrig = 0x10;// mask for Lpt unlike sign pair
if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
hPtResonance->Fill(fVtot.Pt());
// match with trigger
- if (muonTrack->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
+ if (muonTrack2->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
}
} // 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