+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/* $Id$ */
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Class to describe the MUON tracks
+// in the Event Summary Data class
+// This is where the results of reconstruction
+// are stored for the muons
+// Author: G.Martinez
+//
+///////////////////////////////////////////////////////////////////////////////
+
#include "AliESDMuonTrack.h"
-AliESDMuonTrack::AliESDMuonTrack (const AliESDMuonTrack& MUONTrack):TObject(MUONTrack)
+#include <TLorentzVector.h>
+#include <TMath.h>
+
+ClassImp(AliESDMuonTrack)
+
+//_____________________________________________________________________________
+AliESDMuonTrack::AliESDMuonTrack ():
+ TObject(),
+ fInverseBendingMomentum(0),
+ fThetaX(0),
+ fThetaY(0),
+ fZ(0),
+ fBendingCoor(0),
+ fNonBendingCoor(0),
+ fInverseBendingMomentumUncorrected(0),
+ fThetaXUncorrected(0),
+ fThetaYUncorrected(0),
+ fZUncorrected(0),
+ fBendingCoorUncorrected(0),
+ fNonBendingCoorUncorrected(0),
+ fChi2(0),
+ fNHit(0),
+ fMatchTrigger(-1),
+ fChi2MatchTrigger(0),
+ fHitsPatternInTrigCh(0)
{
- fInverseBendingMomentum = MUONTrack.fInverseBendingMomentum;
- fThetaX = MUONTrack.fThetaX;
- fThetaY = MUONTrack.fThetaY ;
- fZ = MUONTrack.fZ;
- fBendingCoor = MUONTrack.fBendingCoor;
- fNonBendingCoor = MUONTrack.fNonBendingCoor;
- fChi2 = MUONTrack.fChi2;
- fNHit = MUONTrack.fNHit ;
+ // Default constructor
+}
- fMatchTrigger = MUONTrack.fMatchTrigger;
- fChi2MatchTrigger = MUONTrack.fChi2MatchTrigger;
+
+//_____________________________________________________________________________
+AliESDMuonTrack::AliESDMuonTrack (const AliESDMuonTrack& MUONTrack):
+ TObject(MUONTrack),
+ fInverseBendingMomentum(MUONTrack.fInverseBendingMomentum),
+ fThetaX(MUONTrack.fThetaX),
+ fThetaY(MUONTrack.fThetaY),
+ fZ(MUONTrack.fZ),
+ fBendingCoor(MUONTrack.fBendingCoor),
+ fNonBendingCoor(MUONTrack.fNonBendingCoor),
+ fInverseBendingMomentumUncorrected(MUONTrack.fInverseBendingMomentumUncorrected),
+ fThetaXUncorrected(MUONTrack.fThetaXUncorrected),
+ fThetaYUncorrected(MUONTrack.fThetaYUncorrected),
+ fZUncorrected(MUONTrack.fZUncorrected),
+ fBendingCoorUncorrected(MUONTrack.fBendingCoorUncorrected),
+ fNonBendingCoorUncorrected(MUONTrack.fNonBendingCoorUncorrected),
+ fChi2(MUONTrack.fChi2),
+ fNHit(MUONTrack.fNHit),
+ fMatchTrigger(MUONTrack.fMatchTrigger),
+ fChi2MatchTrigger(MUONTrack.fChi2MatchTrigger),
+ fHitsPatternInTrigCh(MUONTrack.fHitsPatternInTrigCh)
+{
+ //
+ // Copy constructor
+ // Deep copy implemented
+ //
}
+//_____________________________________________________________________________
AliESDMuonTrack& AliESDMuonTrack::operator=(const AliESDMuonTrack& MUONTrack)
{
+ //
+ // Equal operator for a deep copy
+ //
if (this == &MUONTrack)
return *this;
fInverseBendingMomentum = MUONTrack.fInverseBendingMomentum;
fThetaX = MUONTrack.fThetaX;
- fThetaY = MUONTrack.fThetaY ;
+ fThetaY = MUONTrack.fThetaY;
fZ = MUONTrack.fZ;
fBendingCoor = MUONTrack.fBendingCoor;
fNonBendingCoor = MUONTrack.fNonBendingCoor;
+
+ fInverseBendingMomentumUncorrected = MUONTrack.fInverseBendingMomentumUncorrected;
+ fThetaXUncorrected = MUONTrack.fThetaXUncorrected;
+ fThetaYUncorrected = MUONTrack.fThetaYUncorrected;
+ fZUncorrected = MUONTrack.fZUncorrected;
+ fBendingCoorUncorrected = MUONTrack.fBendingCoorUncorrected;
+ fNonBendingCoorUncorrected = MUONTrack.fNonBendingCoorUncorrected;
+
fChi2 = MUONTrack.fChi2;
- fNHit = MUONTrack.fNHit ;
+ fNHit = MUONTrack.fNHit;
fMatchTrigger = MUONTrack.fMatchTrigger;
fChi2MatchTrigger = MUONTrack.fChi2MatchTrigger;
+
+ fHitsPatternInTrigCh = MUONTrack.fHitsPatternInTrigCh;
return *this;
}
-ClassImp(AliESDMuonTrack)
+//_____________________________________________________________________________
+Double_t AliESDMuonTrack::Px() const
+{
+ // return p_x from track parameters
+ Double_t nonBendingSlope = TMath::Tan(fThetaX);
+ Double_t bendingSlope = TMath::Tan(fThetaY);
+ Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : 0.;
+ Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+ return pZ * nonBendingSlope;
+}
+
+//_____________________________________________________________________________
+Double_t AliESDMuonTrack::Py() const
+{
+ // return p_y from track parameters
+ Double_t bendingSlope = TMath::Tan(fThetaY);
+ Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : 0.;
+ Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+ return pZ * bendingSlope;
+}
+
+//_____________________________________________________________________________
+Double_t AliESDMuonTrack::Pz() const
+{
+ // return p_z from track parameters
+ Double_t bendingSlope = TMath::Tan(fThetaY);
+ Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : 0.;
+ return -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+}
+
+//_____________________________________________________________________________
+Double_t AliESDMuonTrack::P() const
+{
+ // return p from track parameters
+ Double_t nonBendingSlope = TMath::Tan(fThetaX);
+ Double_t bendingSlope = TMath::Tan(fThetaY);
+ Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : 0.;
+ Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+ return -pZ * TMath::Sqrt(1.0 + bendingSlope*bendingSlope + nonBendingSlope*nonBendingSlope);
+}
+
+//_____________________________________________________________________________
+void AliESDMuonTrack::LorentzP(TLorentzVector& vP) const
+{
+ // return Lorentz momentum vector from track parameters
+ Double_t muonMass = 0.105658369;
+ Double_t nonBendingSlope = TMath::Tan(fThetaX);
+ Double_t bendingSlope = TMath::Tan(fThetaY);
+ Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : 0.;
+ Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+ Double_t pX = pZ * nonBendingSlope;
+ Double_t pY = pZ * bendingSlope;
+ Double_t e = TMath::Sqrt(muonMass*muonMass + pX*pX + pY*pY + pZ*pZ);
+ vP.SetPxPyPzE(pX, pY, pZ, e);
+}
+
+//_____________________________________________________________________________
+Double_t AliESDMuonTrack::PxUncorrected() const
+{
+ // return p_x from track parameters
+ Double_t nonBendingSlope = TMath::Tan(fThetaXUncorrected);
+ Double_t bendingSlope = TMath::Tan(fThetaYUncorrected);
+ Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : 0.;
+ Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+ return pZ * nonBendingSlope;
+}
+
+//_____________________________________________________________________________
+Double_t AliESDMuonTrack::PyUncorrected() const
+{
+ // return p_y from track parameters
+ Double_t bendingSlope = TMath::Tan(fThetaYUncorrected);
+ Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : 0.;
+ Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+ return pZ * bendingSlope;
+}
+
+//_____________________________________________________________________________
+Double_t AliESDMuonTrack::PzUncorrected() const
+{
+ // return p_z from track parameters
+ Double_t bendingSlope = TMath::Tan(fThetaYUncorrected);
+ Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : 0.;
+ return -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+}
+
+//_____________________________________________________________________________
+Double_t AliESDMuonTrack::PUncorrected() const
+{
+ // return p from track parameters
+ Double_t nonBendingSlope = TMath::Tan(fThetaXUncorrected);
+ Double_t bendingSlope = TMath::Tan(fThetaYUncorrected);
+ Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : 0.;
+ Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+ return -pZ * TMath::Sqrt(1.0 + bendingSlope*bendingSlope + nonBendingSlope*nonBendingSlope);
+}
+
+//_____________________________________________________________________________
+void AliESDMuonTrack::LorentzPUncorrected(TLorentzVector& vP) const
+{
+ // return Lorentz momentum vector from track parameters
+ Double_t muonMass = 0.105658369;
+ Double_t nonBendingSlope = TMath::Tan(fThetaXUncorrected);
+ Double_t bendingSlope = TMath::Tan(fThetaYUncorrected);
+ Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : 0.;
+ Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0)
+ Double_t pX = pZ * nonBendingSlope;
+ Double_t pY = pZ * bendingSlope;
+ Double_t e = TMath::Sqrt(muonMass*muonMass + pX*pX + pY*pY + pZ*pZ);
+ vP.SetPxPyPzE(pX, pY, pZ, e);
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff