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//--------------------------------------------------------------------------------------------------
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// $Id: Track.h,v 1.52 2010/06/25 15:11:34 bendavid Exp $
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//
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// Track
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//
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// We store the CMSSW track parameterization
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// Parameters associated to the 5D curvilinear covariance matrix:
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// (qoverp, lambda, phi, dxy, dsz)
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// defined as:
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// qoverp = q / abs(p) = signed inverse of momentum [1/GeV]
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// lambda = pi/2 - polar angle at the given point
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// phi = azimuth angle at the given point
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// dxy = -vx*sin(phi) + vy*cos(phi) [cm]
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// dsz = vz*cos(lambda) - (vx*cos(phi)+vy*sin(phi))*sin(lambda) [cm]
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// (See http://cmslxr.fnal.gov/lxr/source/DataFormats/TrackReco/interface/TrackBase.h)
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//
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// Format for fHits: (We do not use anything resembling reco::HitPattern from CMSSW because that
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// data format requires 800 bits per track!)
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// There is a one to one mapping between bits and tracker layers, where layers are enumerated
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// seperately in the PXB, PXF, TIB, TID, TOB, TEC and r-phi and stereo modules are treated as
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// seperate layers in those detectors which have them
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// (TIB L1,L2, TID L1,L2,L3, TOB L1,L2, TEC L1,L2,L3,L4,L5,L6,L7,L8,L9).
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//
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// A bit value of 1 indicates a hit in the corresponding layer, and 0 indicates no hit.
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//
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// Note that currently this only stores information about hits in the Tracker,
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// but muon chamber information will likely be added as well.
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//
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// Bit-Layer assignments (starting from bit 0):
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// Bit 0: PXB L1
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// Bit 1: PXB L2
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// Bit 2: PXB L3
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// Bit 3: PXF L1
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// Bit 4: PXF L2
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// Bit 5: TIB L1 r-phi
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// Bit 6: TIB L1 stereo
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// Bit 7: TIB L2 r-phi
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// Bit 8: TIB L2 stereo
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// Bit 9: TIB L3 r-phi
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// Bit 10: TIB L4 r-phi
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// Bit 11: TID L1 r-phi
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// Bit 12: TID L1 stereo
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// Bit 13: TID L2 r-phi
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// Bit 14: TID L2 stereo
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// Bit 15: TID L3 r-phi
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// Bit 16: TID L3 stereo
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// Bit 17: TOB L1 r-phi
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// Bit 18: TOB L1 stereo
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// Bit 19: TOB L2 r-phi
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// Bit 20: TOB L2 stereo
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// Bit 21: TOB L3 r-phi
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// Bit 22: TOB L4 r-phi
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// Bit 23: TOB L5 r-phi
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// Bit 24: TOB L6 r-phi
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// Bit 25: TEC L1 r-phi
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// Bit 26: TEC L1 stereo
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// Bit 27: TEC L2 r-phi
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// Bit 28: TEC L2 stereo
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// Bit 29: TEC L3 r-phi
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// Bit 30: TEC L3 stereo
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// Bit 31: TEC L4 r-phi
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// Bit 32: TEC L4 stereo
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// Bit 33: TEC L5 r-phi
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// Bit 34: TEC L5 stereo
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// Bit 35: TEC L6 r-phi
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// Bit 36: TEC L6 stereo
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// Bit 37: TEC L7 r-phi
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// Bit 38: TEC L7 stereo
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// Bit 39: TEC L8 r-phi
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// Bit 40: TEC L8 stereo
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// Bit 41: TEC L9 r-phi
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// Bit 42: TEC L9 stereo
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//
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// Authors: C.Loizides, J.Bendavid, C.Paus
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//--------------------------------------------------------------------------------------------------
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#ifndef MITANA_DATATREE_TRACK_H
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#define MITANA_DATATREE_TRACK_H
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#include "MitAna/DataCont/interface/BitMask.h"
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#include "MitAna/DataTree/interface/TrackQuality.h"
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#include "MitAna/DataTree/interface/BaseVertex.h"
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#include "MitAna/DataTree/interface/DataObject.h"
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#include "MitAna/DataTree/interface/MCParticle.h"
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#include "MitAna/DataTree/interface/SuperCluster.h"
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namespace mithep
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{
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class Track : public DataObject
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{
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public:
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enum EHitLayer {
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PXB1,
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PXB2,
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PXB3,
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PXF1,
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PXF2,
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TIB1,
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TIB1S,
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TIB2,
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TIB2S,
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TIB3,
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TIB4,
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TID1,
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TID1S,
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TID2,
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TID2S,
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TID3,
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TID3S,
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TOB1,
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TOB1S,
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TOB2,
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TOB2S,
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TOB3,
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TOB4,
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TOB5,
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TOB6,
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TEC1,
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TEC1S,
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TEC2,
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TEC2S,
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TEC3,
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TEC3S,
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TEC4,
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TEC4S,
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TEC5,
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TEC5S,
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TEC6,
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TEC6S,
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TEC7,
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TEC7S,
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TEC8,
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TEC8S,
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TEC9,
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TEC9S
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};
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enum ETrackAlgorithm { //taken from DataFormats/TrackReco/interface/TrackBase.h
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undefAlgorithm=0,
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ctf=1,
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rs=2,
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cosmics=3,
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iter0=4,
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iter1=5,
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iter2=6,
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iter3=7,
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iter4=8,
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iter5=9,
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iter6=10,
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iter7=11,
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iter8=12,
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iter9=13,
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iter10=14,
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outInEcalSeededConv=15,
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inOutEcalSeededConv=16,
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nuclInter=17,
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standAloneMuon=18,
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globalMuon=19,
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cosmicStandAloneMuon=20,
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cosmicGlobalMuon=21,
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iter1LargeD0=22,
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iter2LargeD0=23,
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iter3LargeD0=24,
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iter4LargeD0=25,
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iter5LargeD0=26,
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bTagGhostTracks=27,
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beamhalo=28,
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algoSize=29
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};
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Track() : fNHits(0), fNPixelHits(0), fNMissingHits(0), fNExpectedHitsInner(0), fNExpectedHitsOuter(0),
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fAlgo(undefAlgorithm), fIsGsf(0), fPtErr(0), fQOverP(0), fQOverPErr(0),
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fLambda(0), fLambdaErr(0), fPhi0(0), fPhi0Err(0),
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fDxy(0), fDxyErr(0), fDsz(0), fDszErr(0), fChi2(0),
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fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
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Track(Double_t qOverP, Double_t lambda, Double_t phi0, Double_t dxy, Double_t dsz) :
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fNHits(0), fNPixelHits(0), fNMissingHits(0), fNExpectedHitsInner(0), fNExpectedHitsOuter(0),
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fAlgo(undefAlgorithm), fIsGsf(0), fPtErr(0), fQOverP(qOverP), fQOverPErr(0),
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fLambda(lambda), fLambdaErr(0), fPhi0(phi0), fPhi0Err(0),
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fDxy(dxy), fDxyErr(0), fDsz(dsz), fDszErr(0), fChi2(0),
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fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
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~Track() {}
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ETrackAlgorithm Algo() const { return fAlgo; }
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Int_t Charge() const { return (fQOverP>0) ? 1 : -1; }
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Double_t Chi2() const { return fChi2; }
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void ClearHit(EHitLayer l) { fHits.ClearBit(l); }
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Double_t D0() const { return -fDxy; }
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Double_t D0Corrected(const BaseVertex &iVertex) const;
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Double_t DzCorrected(const BaseVertex &iVertex) const;
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Double_t D0Err() const { return fDxyErr; }
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Double_t Dsz() const { return fDsz; }
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Double_t DszErr() const { return fDszErr; }
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Double_t Dxy() const { return fDxy; }
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Double_t DxyErr() const { return fDxyErr; }
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Double_t E(Double_t m) const { return TMath::Sqrt(E2(m)); }
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Double_t E2(Double_t m) const { return P2()+m*m; }
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Double_t Eta() const { return Mom().Eta(); }
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Double_t EtaEcal() const { return fEtaEcal; }
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Bool_t Hit(EHitLayer l) const { return fHits.TestBit(l); }
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const BitMask48 &Hits() const { return fHits; }
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const BitMask48 &MissingHits() const { return fMissingHits; }
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const BitMask48 &ExpectedHitsInner() const { return fExpectedHitsInner; }
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const BitMask48 &ExpectedHitsOuter() const { return fExpectedHitsOuter; }
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Bool_t IsGsf() const { return fIsGsf; }
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Double_t Lambda() const { return fLambda; }
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Double_t LambdaErr() const { return fLambdaErr; }
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const MCParticle *MCPart() const { return fMCParticleRef.Obj(); }
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const ThreeVectorC &Mom() const;
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FourVectorM Mom4(Double_t m) const { return FourVectorM(Pt(),Eta(),Phi(),m); }
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UShort_t Ndof() const { return fNdof; }
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UInt_t NHits() const { if (fNHits) return fNHits; else return fHits.NBitsSet(); }
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UInt_t NMissingHits() const { if (fNMissingHits) return fNMissingHits; else return fMissingHits.NBitsSet(); }
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UInt_t NExpectedHitsInner() const { if (fNExpectedHitsInner) return fNExpectedHitsInner; else return fExpectedHitsInner.NBitsSet(); }
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UInt_t NExpectedHitsOuter() const { if (fNExpectedHitsOuter) return fNExpectedHitsOuter; else return fExpectedHitsOuter.NBitsSet(); }
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UInt_t NStereoHits() const { return StereoHits().NBitsSet(); }
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UInt_t NPixelHits() const { if (fNPixelHits) return fNPixelHits; else return PixelHits().NBitsSet(); }
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EObjType ObjType() const { return kTrack; }
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Double_t P2() const { return 1./fQOverP/fQOverP; }
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Double_t P() const { return TMath::Abs(1./fQOverP); }
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Double_t Phi() const { return fPhi0; }
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Double_t Phi0() const { return fPhi0; }
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Double_t Phi0Err() const { return fPhi0Err; }
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Double_t PhiEcal() const { return fPhiEcal; }
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Double_t Prob() const { return TMath::Prob(fChi2,fNdof); }
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Double_t Pt() const { return Mom().Rho(); }
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Double_t PtErr() const { return fPtErr; }
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Double_t Px() const { return Mom().X(); }
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Double_t Py() const { return Mom().Y(); }
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Double_t Pz() const { return Mom().Z(); }
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Double_t QOverP() const { return fQOverP; }
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Double_t QOverPErr() const { return fQOverPErr; }
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Double_t RChi2() const { return fChi2/(Double_t)fNdof; }
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Double_t Theta() const { return (TMath::PiOver2() - fLambda); }
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const SuperCluster *SCluster() const { return fSuperClusterRef.Obj(); }
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const BitMask48 PixelHits() const { return (fHits & PixelLayers()); }
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const TrackQuality &Quality() const { return fQuality; }
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TrackQuality &Quality() { return fQuality; }
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const BitMask48 StereoHits() const { return (fHits & StereoLayers()); }
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void SetAlgo(ETrackAlgorithm e) { fAlgo = e; }
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void SetChi2(Double_t chi2) { fChi2 = chi2; }
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void SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
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Double_t dXyErr, Double_t dSzErr);
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void SetEtaEcal(Double_t eta) { fEtaEcal = eta; }
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void SetHelix (Double_t qOverP, Double_t lambda, Double_t phi0,
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Double_t dXy, Double_t dSz);
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void SetPtErr(Double_t ptErr) { fPtErr = ptErr; }
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void SetHit(EHitLayer l) { fHits.SetBit(l); }
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void SetHits(const BitMask48 &hits) { fHits = hits; }
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void SetMissingHits(const BitMask48 &h) { fMissingHits = h; }
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void SetExpectedHitsInner(const BitMask48 &h) { fExpectedHitsInner = h; }
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void SetExpectedHitsOuter(const BitMask48 &h) { fExpectedHitsOuter = h; }
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void SetIsGsf(Bool_t b) { fIsGsf = b; }
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void SetNHits(Byte_t n) { fNHits = n; }
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void SetNPixelHits(Byte_t n) { fNPixelHits = n; }
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void SetNMissingHits(Byte_t n) { fNMissingHits = n; }
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void SetNExpectedHitsInner(Byte_t n) { fNExpectedHitsInner = n; }
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void SetNExpectedHitsOuter(Byte_t n) { fNExpectedHitsOuter = n; }
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void SetNdof(UShort_t dof) { fNdof = dof; }
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void SetMCPart(const MCParticle *p) { fMCParticleRef = p; }
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void SetPhiEcal(Double_t phi) { fPhiEcal = phi; }
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void SetSCluster(const SuperCluster* sc) { fSuperClusterRef = sc; }
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Double_t X0() const { return D0()*TMath::Sin(Phi()); }
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Double_t Y0() const { return -D0()*TMath::Cos(Phi()); }
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Double_t Z0() const { return fDsz/TMath::Cos(fLambda); }
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static const BitMask48 StereoLayers();
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static const BitMask48 PixelLayers();
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protected:
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void ClearMom() const { fCacheMomFlag.ClearCache(); }
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void GetMom() const;
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BitMask48 fHits; //storage for mostly hit information
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BitMask48 fMissingHits; //missing hits in crossed good modules
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BitMask48 fExpectedHitsInner; //expected hits before first hit
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BitMask48 fExpectedHitsOuter; //expected hits after last hit
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Byte_t fNHits; //number of valid hits
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Byte_t fNPixelHits; //number of valid pixel hits
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Byte_t fNMissingHits; //number of missing hits
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Byte_t fNExpectedHitsInner; //number of expected inner hits
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Byte_t fNExpectedHitsOuter; //number of expected outer hits
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ETrackAlgorithm fAlgo; //track algorithm
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TrackQuality fQuality; //track quality
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Bool_t fIsGsf; //flag to identify gsf tracks
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Double32_t fPtErr; //[0,0,12]pt uncertainty
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Double32_t fQOverP; //[0,0,14]signed inverse of momentum [1/GeV]
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Double32_t fQOverPErr; //[0,0,14]error of q/p
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Double32_t fLambda; //[0,0,14]pi/2 - polar angle at the reference point
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Double32_t fLambdaErr; //[0,0,14]error of lambda
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Double32_t fPhi0; //[0,0,14]azimuth angle at the given point
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Double32_t fPhi0Err; //[0,0,14]error of azimuthal angle
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Double32_t fDxy; //[0,0,14]trans. distance to reference point [cm]
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Double32_t fDxyErr; //[0,0,14]error of transverse distance
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Double32_t fDsz; //[0,0,14]long. distance to reference point [cm]
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Double32_t fDszErr; //[0,0,14]error of longitudinal distance
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Double32_t fChi2; //[0,0,12]chi squared of track fit
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UShort_t fNdof; //degree-of-freedom of track fit
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Double32_t fEtaEcal; //[0,0,12]eta of track at Ecal front face
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Double32_t fPhiEcal; //[0,0,12]phi of track at Ecal front face
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Ref<SuperCluster> fSuperClusterRef; //superCluster crossed by track
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Ref<MCParticle> fMCParticleRef; //reference to sim particle (for monte carlo)
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mutable CacheFlag fCacheMomFlag; //||cache validity flag for momentum
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mutable ThreeVectorC fCachedMom; //!cached momentum vector
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| 307 |
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ClassDef(Track, 6) // Track class
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};
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| 310 |
}
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| 311 |
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//--------------------------------------------------------------------------------------------------
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inline void mithep::Track::GetMom() const
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{
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// Compute three momentum.
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| 316 |
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| 317 |
Double_t pt = TMath::Abs(TMath::Cos(fLambda)/fQOverP);
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Double_t eta = - TMath::Log(TMath::Tan(Theta()/2.));
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fCachedMom.SetCoordinates(pt,eta,Phi());
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}
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//--------------------------------------------------------------------------------------------------
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| 323 |
inline const mithep::ThreeVectorC &mithep::Track::Mom() const
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{
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// Return cached momentum value.
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| 327 |
if (!fCacheMomFlag.IsValid()) {
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GetMom();
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fCacheMomFlag.SetValid();
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}
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return fCachedMom;
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}
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//--------------------------------------------------------------------------------------------------
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inline Double_t mithep::Track::D0Corrected(const BaseVertex &iVertex) const
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{
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// Return corrected d0 with respect to primary vertex or beamspot.
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Double_t lXM = -TMath::Sin(Phi()) * D0();
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Double_t lYM = TMath::Cos(Phi()) * D0();
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Double_t lDX = (lXM + iVertex.X());
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Double_t lDY = (lYM + iVertex.Y());
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Double_t d0Corr = (Px()*lDY - Py()*lDX)/Pt();
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return d0Corr;
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}
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| 347 |
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| 348 |
//--------------------------------------------------------------------------------------------------
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| 349 |
inline Double_t mithep::Track::DzCorrected(const mithep::BaseVertex &iVertex) const
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| 350 |
{
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| 351 |
// Compute Dxy with respect to a given position
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| 352 |
mithep::ThreeVector momPerp(Px(),Py(),0);
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| 353 |
mithep::ThreeVector posPerp(X0()-iVertex.X(),Y0()-iVertex.Y(),0);
|
| 354 |
return Z0() - iVertex.Z() - posPerp.Dot(momPerp)/Pt() * (Pz()/Pt());
|
| 355 |
|
| 356 |
}
|
| 357 |
|
| 358 |
//--------------------------------------------------------------------------------------------------
|
| 359 |
inline void mithep::Track::SetHelix(Double_t qOverP, Double_t lambda, Double_t phi0,
|
| 360 |
Double_t dxy, Double_t dsz)
|
| 361 |
{
|
| 362 |
// Set helix parameters.
|
| 363 |
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| 364 |
fQOverP = qOverP;
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| 365 |
fLambda = lambda;
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| 366 |
fPhi0 = phi0;
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| 367 |
fDxy = dxy;
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| 368 |
fDsz = dsz;
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| 369 |
ClearMom();
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| 370 |
}
|
| 371 |
|
| 372 |
//--------------------------------------------------------------------------------------------------
|
| 373 |
inline void mithep::Track::SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
|
| 374 |
Double_t dxyErr, Double_t dszErr)
|
| 375 |
{
|
| 376 |
// Set helix errors.
|
| 377 |
|
| 378 |
fQOverPErr = qOverPErr;
|
| 379 |
fLambdaErr = lambdaErr;
|
| 380 |
fPhi0Err = phi0Err;
|
| 381 |
fDxyErr = dxyErr;
|
| 382 |
fDszErr = dszErr;
|
| 383 |
}
|
| 384 |
|
| 385 |
//--------------------------------------------------------------------------------------------------
|
| 386 |
inline const mithep::BitMask48 mithep::Track::StereoLayers()
|
| 387 |
{
|
| 388 |
// Build and return BitMask of stereo layers.
|
| 389 |
|
| 390 |
mithep::BitMask48 stereoLayers;
|
| 391 |
stereoLayers.SetBit(mithep::Track::TIB1S);
|
| 392 |
stereoLayers.SetBit(mithep::Track::TIB2S);
|
| 393 |
stereoLayers.SetBit(mithep::Track::TID1S);
|
| 394 |
stereoLayers.SetBit(mithep::Track::TID2S);
|
| 395 |
stereoLayers.SetBit(mithep::Track::TID3S);
|
| 396 |
stereoLayers.SetBit(mithep::Track::TOB1S);
|
| 397 |
stereoLayers.SetBit(mithep::Track::TOB2S);
|
| 398 |
stereoLayers.SetBit(mithep::Track::TEC1S);
|
| 399 |
stereoLayers.SetBit(mithep::Track::TEC2S);
|
| 400 |
stereoLayers.SetBit(mithep::Track::TEC3S);
|
| 401 |
stereoLayers.SetBit(mithep::Track::TEC4S);
|
| 402 |
stereoLayers.SetBit(mithep::Track::TEC5S);
|
| 403 |
stereoLayers.SetBit(mithep::Track::TEC6S);
|
| 404 |
stereoLayers.SetBit(mithep::Track::TEC7S);
|
| 405 |
stereoLayers.SetBit(mithep::Track::TEC8S);
|
| 406 |
stereoLayers.SetBit(mithep::Track::TEC9S);
|
| 407 |
return stereoLayers;
|
| 408 |
}
|
| 409 |
|
| 410 |
//--------------------------------------------------------------------------------------------------
|
| 411 |
inline const mithep::BitMask48 mithep::Track::PixelLayers()
|
| 412 |
{
|
| 413 |
// Build and return BitMask of stereo layers.
|
| 414 |
|
| 415 |
mithep::BitMask48 pixelLayers;
|
| 416 |
pixelLayers.SetBit(mithep::Track::PXB1);
|
| 417 |
pixelLayers.SetBit(mithep::Track::PXB2);
|
| 418 |
pixelLayers.SetBit(mithep::Track::PXB3);
|
| 419 |
pixelLayers.SetBit(mithep::Track::PXF1);
|
| 420 |
pixelLayers.SetBit(mithep::Track::PXF2);
|
| 421 |
return pixelLayers;
|
| 422 |
}
|
| 423 |
#endif
|
