ViewVC Help
View File | Revision Log | Show Annotations | Root Listing
root/cvsroot/UserCode/MitAna/DataTree/interface/Track.h
Revision: 1.33
Committed: Tue Feb 17 15:09:45 2009 UTC (16 years, 2 months ago) by bendavid
Content type: text/plain
Branch: MAIN
Changes since 1.32: +7 -26 lines
Log Message:
Switched to templated Ref class

File Contents

# User Rev Content
1 loizides 1.1 //--------------------------------------------------------------------------------------------------
2 bendavid 1.33 // $Id: Track.h,v 1.32 2009/01/22 14:21:32 loizides 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     #include "MitAna/DataTree/interface/DataObject.h"
81 bendavid 1.27 #include "MitAna/DataTree/interface/SuperCluster.h"
82 bendavid 1.14 #include "MitAna/DataTree/interface/MCParticle.h"
83 loizides 1.18 #include "MitAna/DataTree/interface/BitMask.h"
84 bendavid 1.28 #include "MitAna/DataTree/interface/BaseVertex.h"
85 loizides 1.9 #include "MitAna/DataTree/interface/Types.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 bendavid 1.15 Track() : fQOverP(0), fQOverPErr(0), fLambda(0), fLambdaErr(0),
139     fPhi0(0), fPhi0Err(0), fDxy(0), fDxyErr(0), fDsz(0), fDszErr(0),
140 bendavid 1.27 fChi2(0), fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
141 bendavid 1.15 Track(Double_t qOverP, Double_t lambda, Double_t phi0, Double_t dxy, Double_t dsz) :
142     fQOverP(qOverP), fQOverPErr(0), fLambda(lambda), fLambdaErr(0),
143     fPhi0(phi0), fPhi0Err(0), fDxy(dxy), fDxyErr(0), fDsz(dsz), fDszErr(0),
144 bendavid 1.27 fChi2(0), fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
145 loizides 1.1 ~Track() {}
146    
147 loizides 1.32 Int_t Charge() const { return (fQOverP>0) ? 1 : -1; }
148     Double_t Chi2() const { return fChi2; }
149     Double_t RChi2() const { return fChi2/(Double_t)fNdof; }
150 loizides 1.30 void ClearHit(EHitLayer l) { fHits.ClearBit(l); }
151 loizides 1.32 Double_t D0() const { return -fDxy; }
152 loizides 1.30 Double_t D0Corrected(const BaseVertex *iVertex) const;
153 loizides 1.32 Double_t D0Err() const { return fDxyErr; }
154     Double_t Dsz() const { return fDsz; }
155     Double_t DszErr() const { return fDszErr; }
156     Double_t Dxy() const { return fDxy; }
157     Double_t DxyErr() const { return fDxyErr; }
158     Double_t E(Double_t m) const { return TMath::Sqrt(E2(m)); }
159     Double_t E2(Double_t m) const { return P2()+m*m; }
160     Double_t Eta() const { return Mom().Eta(); }
161     Double_t EtaEcal() const { return fEtaEcal; }
162     Bool_t Hit(EHitLayer l) const { return fHits.TestBit(l); }
163     const BitMask48 &Hits() const { return fHits; }
164     Double_t Lambda() const { return fLambda; }
165     Double_t LambdaErr() const { return fLambdaErr; }
166 bendavid 1.33 const MCParticle *MCPart() const { return fMCParticleRef.Obj(); }
167 loizides 1.32 ThreeVector Mom() const { return ThreeVector(Px(),Py(),Pz()); }
168     FourVector Mom4(Double_t m) const { return FourVector(Px(),Py(),Pz(),E(m)); }
169     UInt_t Ndof() const { return fNdof; }
170     UInt_t NHits() const { return fHits.NBitsSet(); }
171     UInt_t NStereoHits() const { return StereoHits().NBitsSet(); }
172     EObjType ObjType() const { return kTrack; }
173     Double_t P2() const { return P()*P(); }
174     Double_t P() const { return TMath::Abs(1./fQOverP); }
175     Double_t Phi() const { return fPhi0; }
176     Double_t Phi0() const { return fPhi0; }
177     Double_t Phi0Err() const { return fPhi0Err; }
178     Double_t PhiEcal() const { return fPhiEcal; }
179     Double_t Prob() const { return TMath::Prob(fChi2,fNdof); }
180     Double_t Pt() const { return TMath::Abs(TMath::Cos(fLambda)/fQOverP); }
181     Double_t Px() const { return Pt()*TMath::Cos(fPhi0); }
182     Double_t Py() const { return Pt()*TMath::Sin(fPhi0); }
183     Double_t Pz() const { return P()*TMath::Sin(fLambda); }
184     Double_t QOverP() const { return fQOverP; }
185     Double_t QOverPErr() const { return fQOverPErr; }
186     Double_t Theta() const { return (TMath::PiOver2() - fLambda); }
187     Double_t Z0() const { return fDsz/TMath::Cos(fLambda); }
188 bendavid 1.33 const SuperCluster *SCluster() const { return fSuperClusterRef.Obj(); }
189 loizides 1.32 const BitMask48 StereoHits() const { return (fHits & StereoLayers()); }
190 loizides 1.30 void SetChi2(Double_t chi2) { fChi2 = chi2; }
191     void SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
192     Double_t dXyErr, Double_t dSzErr);
193     void SetEtaEcal(Double_t eta) { fEtaEcal = eta; }
194     void SetHelix (Double_t qOverP, Double_t lambda, Double_t phi0,
195     Double_t dXy, Double_t dSz);
196     void SetHit(EHitLayer l) { fHits.SetBit(l); }
197     void SetHits(const BitMask48 &hits) { fHits = hits; }
198     void SetNdof(UInt_t dof) { fNdof = dof; }
199 bendavid 1.33 void SetMCPart(const MCParticle *p) { fMCParticleRef = p; }
200 loizides 1.30 void SetPhiEcal(Double_t phi) { fPhiEcal = phi; }
201 bendavid 1.33 void SetSCluster(const SuperCluster* sc) { fSuperClusterRef = sc; }
202 loizides 1.30
203     static
204     const BitMask48 StereoLayers();
205 loizides 1.18
206 paus 1.4 protected:
207 loizides 1.30 BitMask48 fHits; //storage for mostly hit information
208     Double_t fQOverP; //signed inverse of momentum [1/GeV]
209     Double_t fQOverPErr; //error of q/p
210     Double_t fLambda; //pi/2 - polar angle at the reference point
211     Double_t fLambdaErr; //error of lambda
212     Double_t fPhi0; //azimuth angle at the given point
213     Double_t fPhi0Err; //error of azimuthal angle
214     Double_t fDxy; //transverse distance to reference point [cm]
215     Double_t fDxyErr; //error of transverse distance
216     Double_t fDsz; //longitudinal distance to reference point [cm]
217     Double_t fDszErr; //error of longitudinal distance
218     Double_t fChi2; //chi squared of track fit
219     UInt_t fNdof; //degree-of-freedom of track fit
220     Double32_t fEtaEcal; //eta of track at Ecal front face
221     Double32_t fPhiEcal; //phi of track at Ecal front face
222 bendavid 1.33 Ref<SuperCluster> fSuperClusterRef; //superCluster crossed by track
223     Ref<MCParticle> fMCParticleRef; //reference to sim particle (for monte carlo)
224 loizides 1.5
225 bendavid 1.27 ClassDef(Track, 2) // Track class
226 loizides 1.1 };
227 loizides 1.5 }
228 loizides 1.1
229 loizides 1.5 //--------------------------------------------------------------------------------------------------
230 bendavid 1.28 inline Double_t mithep::Track::D0Corrected(const BaseVertex *iVertex) const
231     {
232 loizides 1.30 // Return corrected d0 with respect to primary vertex or beamspot.
233 bendavid 1.28
234     Double_t lXM = -TMath::Sin(Phi()) * D0();
235     Double_t lYM = TMath::Cos(Phi()) * D0();
236     Double_t lDX = (lXM + iVertex->X());
237     Double_t lDY = (lYM + iVertex->Y());
238     Double_t d0Corr = (Px()*lDY - Py()*lDX)/Pt();
239    
240     return d0Corr;
241     }
242    
243     //--------------------------------------------------------------------------------------------------
244 paus 1.4 inline
245 bendavid 1.15 void mithep::Track::SetHelix(Double_t qOverP, Double_t lambda, Double_t phi0,
246     Double_t dxy, Double_t dsz)
247 loizides 1.5 {
248 loizides 1.13 // Set helix parameters.
249    
250 bendavid 1.15 fQOverP = qOverP;
251     fLambda = lambda;
252     fPhi0 = phi0;
253     fDxy = dxy;
254     fDsz = dsz;
255 paus 1.4 }
256    
257 loizides 1.5 //--------------------------------------------------------------------------------------------------
258 paus 1.4 inline
259 bendavid 1.15 void mithep::Track::SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
260     Double_t dxyErr, Double_t dszErr)
261 loizides 1.5 {
262 loizides 1.13 // Set helix errors.
263    
264 bendavid 1.15 fQOverPErr = qOverPErr;
265     fLambdaErr = lambdaErr;
266     fPhi0Err = phi0Err;
267     fDxyErr = dxyErr;
268     fDszErr = dszErr;
269 paus 1.4 }
270 loizides 1.13
271     //--------------------------------------------------------------------------------------------------
272     inline
273 bendavid 1.27 const mithep::BitMask48 mithep::Track::StereoLayers()
274 bendavid 1.26 {
275     // Build and return BitMask of stereo layers
276    
277     mithep::BitMask48 stereoLayers;
278     stereoLayers.SetBit(mithep::Track::TIB1S);
279     stereoLayers.SetBit(mithep::Track::TIB2S);
280     stereoLayers.SetBit(mithep::Track::TID1S);
281     stereoLayers.SetBit(mithep::Track::TID2S);
282     stereoLayers.SetBit(mithep::Track::TID3S);
283     stereoLayers.SetBit(mithep::Track::TOB1S);
284     stereoLayers.SetBit(mithep::Track::TOB2S);
285     stereoLayers.SetBit(mithep::Track::TEC1S);
286     stereoLayers.SetBit(mithep::Track::TEC2S);
287     stereoLayers.SetBit(mithep::Track::TEC3S);
288     stereoLayers.SetBit(mithep::Track::TEC4S);
289     stereoLayers.SetBit(mithep::Track::TEC5S);
290     stereoLayers.SetBit(mithep::Track::TEC6S);
291     stereoLayers.SetBit(mithep::Track::TEC7S);
292     stereoLayers.SetBit(mithep::Track::TEC8S);
293     stereoLayers.SetBit(mithep::Track::TEC9S);
294     return stereoLayers;
295     }
296 loizides 1.5 #endif