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root/cvsroot/UserCode/MitAna/DataTree/interface/Track.h
Revision: 1.47
Committed: Mon Jan 18 14:35:10 2010 UTC (15 years, 3 months ago) by bendavid
Content type: text/plain
Branch: MAIN
CVS Tags: Mit_013pre1, Mit_012i
Changes since 1.46: +6 -2 lines
Log Message: 
Add TrackQuality

File Contents

# User Rev Content
1 loizides 1.1 //--------------------------------------------------------------------------------------------------
2 bendavid 1.47 // $Id: Track.h,v 1.46 2010/01/07 11:03:41 bendavid Exp $
3 loizides 1.1 //
4     // Track
5     //
6 bendavid 1.15 // We store the CMSSW track parameterization
7     // Parameters associated to the 5D curvilinear covariance matrix:
8     // (qoverp, lambda, phi, dxy, dsz)
9     // defined as:
10     // qoverp = q / abs(p) = signed inverse of momentum [1/GeV]
11     // lambda = pi/2 - polar angle at the given point
12     // phi = azimuth angle at the given point
13     // dxy = -vx*sin(phi) + vy*cos(phi) [cm]
14     // dsz = vz*cos(lambda) - (vx*cos(phi)+vy*sin(phi))*sin(lambda) [cm]
15 loizides 1.18 // (See http://cmslxr.fnal.gov/lxr/source/DataFormats/TrackReco/interface/TrackBase.h)
16 bendavid 1.15 //
17     // Format for fHits: (We do not use anything resembling reco::HitPattern from CMSSW because that
18     // data format requires 800 bits per track!)
19     // There is a one to one mapping between bits and tracker layers, where layers are enumerated
20     // seperately in the PXB, PXF, TIB, TID, TOB, TEC and r-phi and stereo modules are treated as
21     // seperate layers in those detectors which have them
22 bendavid 1.25 // (TIB L1,L2, TID L1,L2,L3, TOB L1,L2, TEC L1,L2,L3,L4,L5,L6,L7,L8,L9).
23 bendavid 1.15 //
24     // A bit value of 1 indicates a hit in the corresponding layer, and 0 indicates no hit.
25     //
26     // Note that currently this only stores information about hits in the Tracker,
27 loizides 1.16 // but muon chamber information will likely be added as well.
28 bendavid 1.15 //
29     // Bit-Layer assignments (starting from bit 0):
30     // Bit 0: PXB L1
31     // Bit 1: PXB L2
32     // Bit 2: PXB L3
33     // Bit 3: PXF L1
34     // Bit 4: PXF L2
35     // Bit 5: TIB L1 r-phi
36     // Bit 6: TIB L1 stereo
37     // Bit 7: TIB L2 r-phi
38     // Bit 8: TIB L2 stereo
39     // Bit 9: TIB L3 r-phi
40     // Bit 10: TIB L4 r-phi
41 loizides 1.16 // Bit 11: TID L1 r-phi
42 bendavid 1.15 // Bit 12: TID L1 stereo
43 loizides 1.16 // Bit 13: TID L2 r-phi
44 bendavid 1.15 // Bit 14: TID L2 stereo
45 loizides 1.16 // Bit 15: TID L3 r-phi
46 bendavid 1.23 // Bit 16: TID L3 stereo
47     // Bit 17: TOB L1 r-phi
48     // Bit 18: TOB L1 stereo
49     // Bit 19: TOB L2 r-phi
50     // Bit 20: TOB L2 stereo
51     // Bit 21: TOB L3 r-phi
52     // Bit 22: TOB L4 r-phi
53     // Bit 23: TOB L5 r-phi
54     // Bit 24: TOB L6 r-phi
55     // Bit 25: TEC L1 r-phi
56     // Bit 26: TEC L1 stereo
57     // Bit 27: TEC L2 r-phi
58     // Bit 28: TEC L2 stereo
59     // Bit 29: TEC L3 r-phi
60     // Bit 30: TEC L3 stereo
61     // Bit 31: TEC L4 r-phi
62     // Bit 32: TEC L4 stereo
63     // Bit 33: TEC L5 r-phi
64     // Bit 34: TEC L5 stereo
65     // Bit 35: TEC L6 r-phi
66     // Bit 36: TEC L6 stereo
67     // Bit 37: TEC L7 r-phi
68     // Bit 38: TEC L7 stereo
69     // Bit 39: TEC L8 r-phi
70     // Bit 40: TEC L8 stereo
71     // Bit 41: TEC L9 r-phi
72     // Bit 42: TEC L9 stereo
73 loizides 1.1 //
74 loizides 1.5 // Authors: C.Loizides, J.Bendavid, C.Paus
75 loizides 1.1 //--------------------------------------------------------------------------------------------------
76 loizides 1.7
77 loizides 1.17 #ifndef MITANA_DATATREE_TRACK_H
78     #define MITANA_DATATREE_TRACK_H
79 paus 1.6
80 loizides 1.36 #include "MitAna/DataCont/interface/BitMask.h"
81 bendavid 1.47 #include "MitAna/DataTree/interface/TrackQuality.h"
82 loizides 1.35 #include "MitAna/DataTree/interface/BaseVertex.h"
83 paus 1.6 #include "MitAna/DataTree/interface/DataObject.h"
84 loizides 1.35 #include "MitAna/DataTree/interface/MCParticle.h"
85 bendavid 1.27 #include "MitAna/DataTree/interface/SuperCluster.h"
86 loizides 1.1
87     namespace mithep
88     {
89     class Track : public DataObject
90     {
91     public:
92 loizides 1.18 enum EHitLayer {
93     PXB1,
94     PXB2,
95     PXB3,
96     PXF1,
97     PXF2,
98     TIB1,
99     TIB1S,
100     TIB2,
101     TIB2S,
102     TIB3,
103     TIB4,
104     TID1,
105     TID1S,
106     TID2,
107     TID2S,
108     TID3,
109 bendavid 1.23 TID3S,
110 loizides 1.18 TOB1,
111     TOB1S,
112     TOB2,
113     TOB2S,
114     TOB3,
115     TOB4,
116     TOB5,
117     TOB6,
118     TEC1,
119     TEC1S,
120     TEC2,
121     TEC2S,
122     TEC3,
123 bendavid 1.23 TEC3S,
124 loizides 1.18 TEC4,
125 bendavid 1.23 TEC4S,
126 loizides 1.18 TEC5,
127     TEC5S,
128     TEC6,
129 bendavid 1.23 TEC6S,
130 loizides 1.18 TEC7,
131 bendavid 1.23 TEC7S,
132 loizides 1.18 TEC8,
133 bendavid 1.23 TEC8S,
134     TEC9,
135     TEC9S
136 loizides 1.18 };
137    
138 loizides 1.44 enum ETrackAlgorithm { //taken from DataFormats/TrackReco/interface/TrackBase.h
139 bendavid 1.43 undefAlgorithm=0,
140     ctf=1,
141     rs=2,
142     cosmics=3,
143     iter0=4,
144     iter1=5,
145     iter2=6,
146     iter3=7,
147     iter4=8,
148     iter5=9,
149     iter6=10,
150     iter7=11,
151     iter8=12,
152     iter9=13,
153     iter10=14,
154     outInEcalSeededConv=15,
155     inOutEcalSeededConv=16,
156     nuclInter=17,
157     standAloneMuon=18,
158     globalMuon=19,
159     cosmicStandAloneMuon=20,
160     cosmicGlobalMuon=21,
161     iter1LargeD0=22,
162     iter2LargeD0=23,
163     iter3LargeD0=24,
164     iter4LargeD0=25,
165     iter5LargeD0=26,
166     bTagGhostTracks=27,
167     beamhalo=28,
168     algoSize=29
169     };
170    
171    
172     Track() : fAlgo(undefAlgorithm), fIsGsf(0), fQOverP(0), fQOverPErr(0),
173     fLambda(0), fLambdaErr(0), fPhi0(0), fPhi0Err(0),
174     fDxy(0), fDxyErr(0), fDsz(0), fDszErr(0), fChi2(0),
175     fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
176 bendavid 1.15 Track(Double_t qOverP, Double_t lambda, Double_t phi0, Double_t dxy, Double_t dsz) :
177 bendavid 1.43 fAlgo(undefAlgorithm), fIsGsf(0), fQOverP(qOverP), fQOverPErr(0),
178     fLambda(lambda), fLambdaErr(0), fPhi0(phi0), fPhi0Err(0),
179     fDxy(dxy), fDxyErr(0), fDsz(dsz), fDszErr(0), fChi2(0),
180     fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
181 loizides 1.1 ~Track() {}
182    
183 bendavid 1.43 ETrackAlgorithm Algo() const { return fAlgo; }
184 loizides 1.34 Int_t Charge() const { return (fQOverP>0) ? 1 : -1; }
185     Double_t Chi2() const { return fChi2; }
186     void ClearHit(EHitLayer l) { fHits.ClearBit(l); }
187     Double_t D0() const { return -fDxy; }
188     Double_t D0Corrected(const BaseVertex &iVertex) const;
189     Double_t D0Err() const { return fDxyErr; }
190     Double_t Dsz() const { return fDsz; }
191     Double_t DszErr() const { return fDszErr; }
192     Double_t Dxy() const { return fDxy; }
193     Double_t DxyErr() const { return fDxyErr; }
194     Double_t E(Double_t m) const { return TMath::Sqrt(E2(m)); }
195     Double_t E2(Double_t m) const { return P2()+m*m; }
196     Double_t Eta() const { return Mom().Eta(); }
197     Double_t EtaEcal() const { return fEtaEcal; }
198     Bool_t Hit(EHitLayer l) const { return fHits.TestBit(l); }
199     const BitMask48 &Hits() const { return fHits; }
200 bendavid 1.43 Bool_t IsGsf() const { return fIsGsf; }
201 loizides 1.34 Double_t Lambda() const { return fLambda; }
202     Double_t LambdaErr() const { return fLambdaErr; }
203     const MCParticle *MCPart() const { return fMCParticleRef.Obj(); }
204     const ThreeVectorC &Mom() const;
205 pharris 1.41 FourVectorM Mom4(Double_t m) const { return FourVectorM(Pt(),Eta(),Phi(),m); }
206 loizides 1.38 UShort_t Ndof() const { return fNdof; }
207 loizides 1.34 UInt_t NHits() const { return fHits.NBitsSet(); }
208     UInt_t NStereoHits() const { return StereoHits().NBitsSet(); }
209 bendavid 1.46 UInt_t NPixelHits() const { return PixelHits().NBitsSet(); }
210 loizides 1.34 EObjType ObjType() const { return kTrack; }
211     Double_t P2() const { return 1./fQOverP/fQOverP; }
212     Double_t P() const { return TMath::Abs(1./fQOverP); }
213     Double_t Phi() const { return fPhi0; }
214     Double_t Phi0() const { return fPhi0; }
215     Double_t Phi0Err() const { return fPhi0Err; }
216     Double_t PhiEcal() const { return fPhiEcal; }
217     Double_t Prob() const { return TMath::Prob(fChi2,fNdof); }
218     Double_t Pt() const { return Mom().Rho(); }
219     Double_t Px() const { return Mom().X(); }
220     Double_t Py() const { return Mom().Y(); }
221     Double_t Pz() const { return Mom().Z(); }
222     Double_t QOverP() const { return fQOverP; }
223     Double_t QOverPErr() const { return fQOverPErr; }
224 loizides 1.37 Double_t RChi2() const { return fChi2/(Double_t)fNdof; }
225 loizides 1.34 Double_t Theta() const { return (TMath::PiOver2() - fLambda); }
226     const SuperCluster *SCluster() const { return fSuperClusterRef.Obj(); }
227 bendavid 1.45 const BitMask48 PixelHits() const { return (fHits & PixelLayers()); }
228 bendavid 1.47 const TrackQuality &Quality() const { return fQuality; }
229     TrackQuality &Quality() { return fQuality; }
230 loizides 1.34 const BitMask48 StereoHits() const { return (fHits & StereoLayers()); }
231 bendavid 1.43 void SetAlgo(ETrackAlgorithm e) { fAlgo = e; }
232 loizides 1.34 void SetChi2(Double_t chi2) { fChi2 = chi2; }
233     void SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
234     Double_t dXyErr, Double_t dSzErr);
235     void SetEtaEcal(Double_t eta) { fEtaEcal = eta; }
236     void SetHelix (Double_t qOverP, Double_t lambda, Double_t phi0,
237     Double_t dXy, Double_t dSz);
238     void SetHit(EHitLayer l) { fHits.SetBit(l); }
239     void SetHits(const BitMask48 &hits) { fHits = hits; }
240 bendavid 1.43 void SetIsGsf(Bool_t b) { fIsGsf = b; }
241 loizides 1.38 void SetNdof(UShort_t dof) { fNdof = dof; }
242 loizides 1.34 void SetMCPart(const MCParticle *p) { fMCParticleRef = p; }
243     void SetPhiEcal(Double_t phi) { fPhiEcal = phi; }
244     void SetSCluster(const SuperCluster* sc) { fSuperClusterRef = sc; }
245 loizides 1.37 Double_t Z0() const { return fDsz/TMath::Cos(fLambda); }
246 loizides 1.30
247 bendavid 1.45
248     static const BitMask48 StereoLayers();
249     static const BitMask48 PixelLayers();
250 loizides 1.18
251 paus 1.4 protected:
252 loizides 1.34 void ClearMom() const { fCacheMomFlag.ClearCache(); }
253     void GetMom() const;
254    
255     BitMask48 fHits; //storage for mostly hit information
256 bendavid 1.43 ETrackAlgorithm fAlgo; //track algorithm
257 bendavid 1.47 TrackQuality fQuality; //track quality
258 bendavid 1.43 Bool_t fIsGsf; //flag to identify gsf tracks
259 loizides 1.38 Double32_t fQOverP; //[0,0,14]signed inverse of momentum [1/GeV]
260     Double32_t fQOverPErr; //[0,0,14]error of q/p
261     Double32_t fLambda; //[0,0,14]pi/2 - polar angle at the reference point
262     Double32_t fLambdaErr; //[0,0,14]error of lambda
263     Double32_t fPhi0; //[0,0,14]azimuth angle at the given point
264     Double32_t fPhi0Err; //[0,0,14]error of azimuthal angle
265     Double32_t fDxy; //[0,0,14]trans. distance to reference point [cm]
266     Double32_t fDxyErr; //[0,0,14]error of transverse distance
267     Double32_t fDsz; //[0,0,14]long. distance to reference point [cm]
268     Double32_t fDszErr; //[0,0,14]error of longitudinal distance
269     Double32_t fChi2; //[0,0,12]chi squared of track fit
270     UShort_t fNdof; //degree-of-freedom of track fit
271 loizides 1.40 Double32_t fEtaEcal; //[0,0,12]eta of track at Ecal front face
272     Double32_t fPhiEcal; //[0,0,12]phi of track at Ecal front face
273 loizides 1.34 Ref<SuperCluster> fSuperClusterRef; //superCluster crossed by track
274     Ref<MCParticle> fMCParticleRef; //reference to sim particle (for monte carlo)
275     mutable CacheFlag fCacheMomFlag; //||cache validity flag for momentum
276     mutable ThreeVectorC fCachedMom; //!cached momentum vector
277 loizides 1.5
278 bendavid 1.47 ClassDef(Track, 3) // Track class
279 loizides 1.1 };
280 loizides 1.5 }
281 loizides 1.1
282 loizides 1.5 //--------------------------------------------------------------------------------------------------
283 loizides 1.34 inline void mithep::Track::GetMom() const
284     {
285     // Compute three momentum.
286    
287     Double_t pt = TMath::Abs(TMath::Cos(fLambda)/fQOverP);
288     Double_t eta = - TMath::Log(TMath::Tan(Theta()/2.));
289     fCachedMom.SetCoordinates(pt,eta,Phi());
290     }
291    
292     //--------------------------------------------------------------------------------------------------
293     inline const mithep::ThreeVectorC &mithep::Track::Mom() const
294     {
295     // Return cached momentum value.
296    
297     if (!fCacheMomFlag.IsValid()) {
298     GetMom();
299     fCacheMomFlag.SetValid();
300     }
301     return fCachedMom;
302     }
303    
304     //--------------------------------------------------------------------------------------------------
305     inline Double_t mithep::Track::D0Corrected(const BaseVertex &iVertex) const
306 bendavid 1.28 {
307 loizides 1.30 // Return corrected d0 with respect to primary vertex or beamspot.
308 bendavid 1.28
309     Double_t lXM = -TMath::Sin(Phi()) * D0();
310     Double_t lYM = TMath::Cos(Phi()) * D0();
311 loizides 1.34 Double_t lDX = (lXM + iVertex.X());
312     Double_t lDY = (lYM + iVertex.Y());
313 bendavid 1.28 Double_t d0Corr = (Px()*lDY - Py()*lDX)/Pt();
314    
315     return d0Corr;
316     }
317    
318     //--------------------------------------------------------------------------------------------------
319 loizides 1.44 inline void mithep::Track::SetHelix(Double_t qOverP, Double_t lambda, Double_t phi0,
320     Double_t dxy, Double_t dsz)
321 loizides 1.5 {
322 loizides 1.13 // Set helix parameters.
323    
324 bendavid 1.15 fQOverP = qOverP;
325     fLambda = lambda;
326     fPhi0 = phi0;
327     fDxy = dxy;
328     fDsz = dsz;
329 loizides 1.34 ClearMom();
330 paus 1.4 }
331    
332 loizides 1.5 //--------------------------------------------------------------------------------------------------
333 loizides 1.44 inline void mithep::Track::SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
334     Double_t dxyErr, Double_t dszErr)
335 loizides 1.5 {
336 loizides 1.13 // Set helix errors.
337    
338 bendavid 1.15 fQOverPErr = qOverPErr;
339     fLambdaErr = lambdaErr;
340     fPhi0Err = phi0Err;
341     fDxyErr = dxyErr;
342     fDszErr = dszErr;
343 paus 1.4 }
344 loizides 1.13
345     //--------------------------------------------------------------------------------------------------
346 loizides 1.44 inline const mithep::BitMask48 mithep::Track::StereoLayers()
347 bendavid 1.26 {
348 loizides 1.35 // Build and return BitMask of stereo layers.
349 bendavid 1.26
350     mithep::BitMask48 stereoLayers;
351     stereoLayers.SetBit(mithep::Track::TIB1S);
352     stereoLayers.SetBit(mithep::Track::TIB2S);
353     stereoLayers.SetBit(mithep::Track::TID1S);
354     stereoLayers.SetBit(mithep::Track::TID2S);
355     stereoLayers.SetBit(mithep::Track::TID3S);
356     stereoLayers.SetBit(mithep::Track::TOB1S);
357     stereoLayers.SetBit(mithep::Track::TOB2S);
358     stereoLayers.SetBit(mithep::Track::TEC1S);
359     stereoLayers.SetBit(mithep::Track::TEC2S);
360     stereoLayers.SetBit(mithep::Track::TEC3S);
361     stereoLayers.SetBit(mithep::Track::TEC4S);
362     stereoLayers.SetBit(mithep::Track::TEC5S);
363     stereoLayers.SetBit(mithep::Track::TEC6S);
364     stereoLayers.SetBit(mithep::Track::TEC7S);
365     stereoLayers.SetBit(mithep::Track::TEC8S);
366     stereoLayers.SetBit(mithep::Track::TEC9S);
367     return stereoLayers;
368     }
369 bendavid 1.45
370     //--------------------------------------------------------------------------------------------------
371     inline const mithep::BitMask48 mithep::Track::PixelLayers()
372     {
373     // Build and return BitMask of stereo layers.
374    
375     mithep::BitMask48 pixelLayers;
376     pixelLayers.SetBit(mithep::Track::PXB1);
377     pixelLayers.SetBit(mithep::Track::PXB2);
378     pixelLayers.SetBit(mithep::Track::PXB3);
379     pixelLayers.SetBit(mithep::Track::PXF1);
380     pixelLayers.SetBit(mithep::Track::PXF2);
381     return pixelLayers;
382     }
383 loizides 1.5 #endif