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root/cvsroot/UserCode/MitAna/DataTree/interface/Track.h
Revision: 1.48
Committed: Tue Mar 23 16:52:46 2010 UTC (15 years, 1 month ago) by bendavid
Content type: text/plain
Branch: MAIN
CVS Tags: Mit_013c, Mit_013b, Mit_013a, Mit_013
Changes since 1.47: +14 -2 lines
Log Message:
Add expected and missing hits information to tracks

File Contents

# User Rev Content
1 loizides 1.1 //--------------------------------------------------------------------------------------------------
2 bendavid 1.48 // $Id: Track.h,v 1.47 2010/01/18 14:35:10 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 1.48 const BitMask48 &MissingHits() const { return fMissingHits; }
201     const BitMask48 &ExpectedHitsInner() const { return fExpectedHitsInner; }
202     const BitMask48 &ExpectedHitsOuter() const { return fExpectedHitsOuter; }
203 bendavid 1.43 Bool_t IsGsf() const { return fIsGsf; }
204 loizides 1.34 Double_t Lambda() const { return fLambda; }
205     Double_t LambdaErr() const { return fLambdaErr; }
206     const MCParticle *MCPart() const { return fMCParticleRef.Obj(); }
207     const ThreeVectorC &Mom() const;
208 pharris 1.41 FourVectorM Mom4(Double_t m) const { return FourVectorM(Pt(),Eta(),Phi(),m); }
209 loizides 1.38 UShort_t Ndof() const { return fNdof; }
210 loizides 1.34 UInt_t NHits() const { return fHits.NBitsSet(); }
211 bendavid 1.48 UInt_t NMissingHits() const { return fMissingHits.NBitsSet(); }
212     UInt_t NExpectedHitsInner() const { return fExpectedHitsInner.NBitsSet(); }
213     UInt_t NExpectedHitsOuter() const { return fExpectedHitsOuter.NBitsSet(); }
214 loizides 1.34 UInt_t NStereoHits() const { return StereoHits().NBitsSet(); }
215 bendavid 1.46 UInt_t NPixelHits() const { return PixelHits().NBitsSet(); }
216 loizides 1.34 EObjType ObjType() const { return kTrack; }
217     Double_t P2() const { return 1./fQOverP/fQOverP; }
218     Double_t P() const { return TMath::Abs(1./fQOverP); }
219     Double_t Phi() const { return fPhi0; }
220     Double_t Phi0() const { return fPhi0; }
221     Double_t Phi0Err() const { return fPhi0Err; }
222     Double_t PhiEcal() const { return fPhiEcal; }
223     Double_t Prob() const { return TMath::Prob(fChi2,fNdof); }
224     Double_t Pt() const { return Mom().Rho(); }
225     Double_t Px() const { return Mom().X(); }
226     Double_t Py() const { return Mom().Y(); }
227     Double_t Pz() const { return Mom().Z(); }
228     Double_t QOverP() const { return fQOverP; }
229     Double_t QOverPErr() const { return fQOverPErr; }
230 loizides 1.37 Double_t RChi2() const { return fChi2/(Double_t)fNdof; }
231 loizides 1.34 Double_t Theta() const { return (TMath::PiOver2() - fLambda); }
232     const SuperCluster *SCluster() const { return fSuperClusterRef.Obj(); }
233 bendavid 1.45 const BitMask48 PixelHits() const { return (fHits & PixelLayers()); }
234 bendavid 1.47 const TrackQuality &Quality() const { return fQuality; }
235     TrackQuality &Quality() { return fQuality; }
236 loizides 1.34 const BitMask48 StereoHits() const { return (fHits & StereoLayers()); }
237 bendavid 1.43 void SetAlgo(ETrackAlgorithm e) { fAlgo = e; }
238 loizides 1.34 void SetChi2(Double_t chi2) { fChi2 = chi2; }
239     void SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
240     Double_t dXyErr, Double_t dSzErr);
241     void SetEtaEcal(Double_t eta) { fEtaEcal = eta; }
242     void SetHelix (Double_t qOverP, Double_t lambda, Double_t phi0,
243     Double_t dXy, Double_t dSz);
244     void SetHit(EHitLayer l) { fHits.SetBit(l); }
245     void SetHits(const BitMask48 &hits) { fHits = hits; }
246 bendavid 1.48 void SetMissingHits(const BitMask48 &h) { fMissingHits = h; }
247     void SetExpectedHitsInner(const BitMask48 &h) { fExpectedHitsInner = h; }
248     void SetExpectedHitsOuter(const BitMask48 &h) { fExpectedHitsInner = h; }
249 bendavid 1.43 void SetIsGsf(Bool_t b) { fIsGsf = b; }
250 loizides 1.38 void SetNdof(UShort_t dof) { fNdof = dof; }
251 loizides 1.34 void SetMCPart(const MCParticle *p) { fMCParticleRef = p; }
252     void SetPhiEcal(Double_t phi) { fPhiEcal = phi; }
253     void SetSCluster(const SuperCluster* sc) { fSuperClusterRef = sc; }
254 loizides 1.37 Double_t Z0() const { return fDsz/TMath::Cos(fLambda); }
255 loizides 1.30
256 bendavid 1.45
257     static const BitMask48 StereoLayers();
258     static const BitMask48 PixelLayers();
259 loizides 1.18
260 paus 1.4 protected:
261 loizides 1.34 void ClearMom() const { fCacheMomFlag.ClearCache(); }
262     void GetMom() const;
263    
264     BitMask48 fHits; //storage for mostly hit information
265 bendavid 1.48 BitMask48 fMissingHits; //missing hits in crossed good modules
266     BitMask48 fExpectedHitsInner; //expected hits before first hit
267     BitMask48 fExpectedHitsOuter; //expected hits after last hit
268 bendavid 1.43 ETrackAlgorithm fAlgo; //track algorithm
269 bendavid 1.47 TrackQuality fQuality; //track quality
270 bendavid 1.43 Bool_t fIsGsf; //flag to identify gsf tracks
271 loizides 1.38 Double32_t fQOverP; //[0,0,14]signed inverse of momentum [1/GeV]
272     Double32_t fQOverPErr; //[0,0,14]error of q/p
273     Double32_t fLambda; //[0,0,14]pi/2 - polar angle at the reference point
274     Double32_t fLambdaErr; //[0,0,14]error of lambda
275     Double32_t fPhi0; //[0,0,14]azimuth angle at the given point
276     Double32_t fPhi0Err; //[0,0,14]error of azimuthal angle
277     Double32_t fDxy; //[0,0,14]trans. distance to reference point [cm]
278     Double32_t fDxyErr; //[0,0,14]error of transverse distance
279     Double32_t fDsz; //[0,0,14]long. distance to reference point [cm]
280     Double32_t fDszErr; //[0,0,14]error of longitudinal distance
281     Double32_t fChi2; //[0,0,12]chi squared of track fit
282     UShort_t fNdof; //degree-of-freedom of track fit
283 loizides 1.40 Double32_t fEtaEcal; //[0,0,12]eta of track at Ecal front face
284     Double32_t fPhiEcal; //[0,0,12]phi of track at Ecal front face
285 loizides 1.34 Ref<SuperCluster> fSuperClusterRef; //superCluster crossed by track
286     Ref<MCParticle> fMCParticleRef; //reference to sim particle (for monte carlo)
287     mutable CacheFlag fCacheMomFlag; //||cache validity flag for momentum
288     mutable ThreeVectorC fCachedMom; //!cached momentum vector
289 loizides 1.5
290 bendavid 1.48 ClassDef(Track, 4) // Track class
291 loizides 1.1 };
292 loizides 1.5 }
293 loizides 1.1
294 loizides 1.5 //--------------------------------------------------------------------------------------------------
295 loizides 1.34 inline void mithep::Track::GetMom() const
296     {
297     // Compute three momentum.
298    
299     Double_t pt = TMath::Abs(TMath::Cos(fLambda)/fQOverP);
300     Double_t eta = - TMath::Log(TMath::Tan(Theta()/2.));
301     fCachedMom.SetCoordinates(pt,eta,Phi());
302     }
303    
304     //--------------------------------------------------------------------------------------------------
305     inline const mithep::ThreeVectorC &mithep::Track::Mom() const
306     {
307     // Return cached momentum value.
308    
309     if (!fCacheMomFlag.IsValid()) {
310     GetMom();
311     fCacheMomFlag.SetValid();
312     }
313     return fCachedMom;
314     }
315    
316     //--------------------------------------------------------------------------------------------------
317     inline Double_t mithep::Track::D0Corrected(const BaseVertex &iVertex) const
318 bendavid 1.28 {
319 loizides 1.30 // Return corrected d0 with respect to primary vertex or beamspot.
320 bendavid 1.28
321     Double_t lXM = -TMath::Sin(Phi()) * D0();
322     Double_t lYM = TMath::Cos(Phi()) * D0();
323 loizides 1.34 Double_t lDX = (lXM + iVertex.X());
324     Double_t lDY = (lYM + iVertex.Y());
325 bendavid 1.28 Double_t d0Corr = (Px()*lDY - Py()*lDX)/Pt();
326    
327     return d0Corr;
328     }
329    
330     //--------------------------------------------------------------------------------------------------
331 loizides 1.44 inline void mithep::Track::SetHelix(Double_t qOverP, Double_t lambda, Double_t phi0,
332     Double_t dxy, Double_t dsz)
333 loizides 1.5 {
334 loizides 1.13 // Set helix parameters.
335    
336 bendavid 1.15 fQOverP = qOverP;
337     fLambda = lambda;
338     fPhi0 = phi0;
339     fDxy = dxy;
340     fDsz = dsz;
341 loizides 1.34 ClearMom();
342 paus 1.4 }
343    
344 loizides 1.5 //--------------------------------------------------------------------------------------------------
345 loizides 1.44 inline void mithep::Track::SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
346     Double_t dxyErr, Double_t dszErr)
347 loizides 1.5 {
348 loizides 1.13 // Set helix errors.
349    
350 bendavid 1.15 fQOverPErr = qOverPErr;
351     fLambdaErr = lambdaErr;
352     fPhi0Err = phi0Err;
353     fDxyErr = dxyErr;
354     fDszErr = dszErr;
355 paus 1.4 }
356 loizides 1.13
357     //--------------------------------------------------------------------------------------------------
358 loizides 1.44 inline const mithep::BitMask48 mithep::Track::StereoLayers()
359 bendavid 1.26 {
360 loizides 1.35 // Build and return BitMask of stereo layers.
361 bendavid 1.26
362     mithep::BitMask48 stereoLayers;
363     stereoLayers.SetBit(mithep::Track::TIB1S);
364     stereoLayers.SetBit(mithep::Track::TIB2S);
365     stereoLayers.SetBit(mithep::Track::TID1S);
366     stereoLayers.SetBit(mithep::Track::TID2S);
367     stereoLayers.SetBit(mithep::Track::TID3S);
368     stereoLayers.SetBit(mithep::Track::TOB1S);
369     stereoLayers.SetBit(mithep::Track::TOB2S);
370     stereoLayers.SetBit(mithep::Track::TEC1S);
371     stereoLayers.SetBit(mithep::Track::TEC2S);
372     stereoLayers.SetBit(mithep::Track::TEC3S);
373     stereoLayers.SetBit(mithep::Track::TEC4S);
374     stereoLayers.SetBit(mithep::Track::TEC5S);
375     stereoLayers.SetBit(mithep::Track::TEC6S);
376     stereoLayers.SetBit(mithep::Track::TEC7S);
377     stereoLayers.SetBit(mithep::Track::TEC8S);
378     stereoLayers.SetBit(mithep::Track::TEC9S);
379     return stereoLayers;
380     }
381 bendavid 1.45
382     //--------------------------------------------------------------------------------------------------
383     inline const mithep::BitMask48 mithep::Track::PixelLayers()
384     {
385     // Build and return BitMask of stereo layers.
386    
387     mithep::BitMask48 pixelLayers;
388     pixelLayers.SetBit(mithep::Track::PXB1);
389     pixelLayers.SetBit(mithep::Track::PXB2);
390     pixelLayers.SetBit(mithep::Track::PXB3);
391     pixelLayers.SetBit(mithep::Track::PXF1);
392     pixelLayers.SetBit(mithep::Track::PXF2);
393     return pixelLayers;
394     }
395 loizides 1.5 #endif