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Comparing UserCode/MitAna/DataTree/interface/Track.h (file contents):
Revision 1.12 by loizides, Tue Jul 8 14:41:01 2008 UTC vs.
Revision 1.31 by loizides, Tue Dec 9 17:47:00 2008 UTC

#	Line 3 | Line 3
3		//
4		// Track
5		//
6	<	// This will/must be re-written :-)
6	>	// 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	>	// (See http://cmslxr.fnal.gov/lxr/source/DataFormats/TrackReco/interface/TrackBase.h)
16	>	//
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	>	// (TIB L1,L2, TID L1,L2,L3, TOB L1,L2, TEC L1,L2,L3,L4,L5,L6,L7,L8,L9).
23	>	//
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	>	// but muon chamber information will likely be added as well.
28	>	//
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	>	// Bit 11: TID L1 r-phi
42	>	// Bit 12: TID L1 stereo
43	>	// Bit 13: TID L2 r-phi
44	>	// Bit 14: TID L2 stereo
45	>	// Bit 15: TID L3 r-phi
46	>	// 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		//
74		// Authors: C.Loizides, J.Bendavid, C.Paus
75		//--------------------------------------------------------------------------------------------------
76
77	<	#ifndef DATATREE_TRACK_H
78	<	#define DATATREE_TRACK_H
77	>	#ifndef MITANA_DATATREE_TRACK_H
78	>	#define MITANA_DATATREE_TRACK_H
79
80		#include "MitAna/DataTree/interface/DataObject.h"
81	<	#include "MitAna/DataTree/interface/SimParticle.h"
81	>	#include "MitAna/DataTree/interface/SuperCluster.h"
82	>	#include "MitAna/DataTree/interface/MCParticle.h"
83	>	#include "MitAna/DataTree/interface/BitMask.h"
84	>	#include "MitAna/DataTree/interface/BaseVertex.h"
85		#include "MitAna/DataTree/interface/Types.h"
86
87		namespace mithep
#	Line 20 | Line 89 | namespace mithep
89		class Track : public DataObject
90		{
91		public:
92	<	Track() : fPhi(0), fD0(0), fPt(0), fDz(0), fTheta(0), fPhiErr(0), fD0Err(0), fPtErr(0),
93	<	fDzErr(0), fThetaErr(0), fCharge(0) {}
94	<	Track(Double_t phi, Double_t d0, Double_t pt, Double_t dz, Double_t theta) :
95	<	fPhi(phi), fD0(d0), fPt(pt), fDz(dz), fTheta(theta), fPhiErr(0), fD0Err(0), fPtErr(0),
96	<	fDzErr(0), fThetaErr(0), fCharge(0) {}
92	>	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	>	TID3S,
110	>	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	>	TEC3S,
124	>	TEC4,
125	>	TEC4S,
126	>	TEC5,
127	>	TEC5S,
128	>	TEC6,
129	>	TEC6S,
130	>	TEC7,
131	>	TEC7S,
132	>	TEC8,
133	>	TEC8S,
134	>	TEC9,
135	>	TEC9S
136	>	};
137	>
138	>	Track() : fQOverP(0), fQOverPErr(0), fLambda(0), fLambdaErr(0),
139	>	fPhi0(0), fPhi0Err(0), fDxy(0), fDxyErr(0), fDsz(0), fDszErr(0),
140	>	fChi2(0), fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
141	>	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	>	fChi2(0), fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
145		~Track() {}
146
147	<	Int_t             Charge()       const { return fCharge; }
148	<	Double_t          D0()           const { return fD0; }
149	<	Double_t          D0Err()        const { return fD0Err; }
150	<	Double_t          Dz()           const { return fDz; }
151	<	Double_t          DzErr()        const { return fDzErr; }
152	<	ThreeVector       Mom()          const { return ThreeVector(Px(),Py(),Pz()); }
153	<	Double_t          P2()           const { return Px()*Px()+Py()*Py()+Pz()*Pz(); }
154	<	Double_t          P()            const { return sqrt(P2()); }
155	<	Double_t          Px()           const { return cos(fPhi)*fabs(fPt); }
156	<	Double_t          Py()           const { return sin(fPhi)*fabs(fPt); }
157	<	Double_t          Pz()           const { return fabs(fPt)/tan(fTheta); }
158	<	Double_t          Phi()          const { return fPhi; }
159	<	Double_t          PhiErr()       const { return fPhiErr; }
160	<	Double_t          Pt()           const { return fPt; }
161	<	Double_t          PtErr()        const { return fPtErr; }
162	<	Double_t          Theta()        const { return fTheta; }
163	<	Double_t          ThetaErr()     const { return fThetaErr; }
164	<
165	<	FourVector        Mom4(double m) const { return FourVector(Px(),Py(),Pz(),E(m)); }
166	<	Double_t          E2(double m)   const { return P2()+m*m; }
167	<	Double_t          E(double m)    const { return sqrt(E2(m)); }
168	<
169	<	void              SetCharge(Int_t charge) { fCharge = charge; }
170	<	void              SetHelix (Double_t phi, Double_t d0, Double_t pt, Double_t dz, Double_t theta);
171	<	void              SetErrors(Double_t phiErr, Double_t d0Err, Double_t ptErr,
172	<	Double_t dzErr, Double_t thetaErr);
173	<
174	<	SimParticle*      GetSimParticle() const         { return (SimParticle*)fSimParticleRef.GetObject(); }
175	<	void              SetSimParticle(SimParticle* p) { fSimParticleRef = p; }
176	<
147	>	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	>	void                ClearHit(EHitLayer l)  { fHits.ClearBit(l); }
151	>	Double_t            D0()              const { return -fDxy; }
152	>	Double_t            D0Corrected(const BaseVertex *iVertex) const;
153	>	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	>	const MCParticle   *MCPart()          const;
167	>	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	>	const SuperCluster *SCluster()        const;
189	>	const BitMask48     StereoHits()      const { return (fHits & StereoLayers()); }
190	>	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	>	void                SetMCPart(const MCParticle *p)
200	>	{ fMCParticleRef = const_cast<MCParticle*>(p); }
201	>	void                SetPhiEcal(Double_t phi) { fPhiEcal = phi; }
202	>	void                SetSCluster(const SuperCluster* sc)
203	>	{ fSuperClusterRef = const_cast<SuperCluster*>(sc); }
204	>
205	>	static
206	>	const BitMask48    StereoLayers();
207	>
208		protected:
209	<	Double_t          fPhi;            //azimuthal angle
210	<	Double_t          fD0;             //raw impact parameter
211	<	Double_t          fPt;             //transverse momentum
212	<	Double_t          fDz;             //z-displacement
213	<	Double_t          fTheta;          //polar angle
214	<	Double_t          fPhiErr;         //uncertainy on phi
215	<	Double_t          fD0Err;          //uncertainty on D0
216	<	Double_t          fPtErr;          //uncertainty on pt
217	<	Double_t          fDzErr;          //uncertainty on dz
218	<	Double_t          fThetaErr;       //uncertainty on theta
219	<	Int_t             fCharge;         //electric charge of reconstructed track
220	<	TRef              fSimParticleRef; //reference to sim particle (for monte carlo)
209	>	BitMask48           fHits;                //storage for mostly hit information
210	>	Double_t            fQOverP;              //signed inverse of momentum [1/GeV]
211	>	Double_t            fQOverPErr;           //error of q/p
212	>	Double_t            fLambda;              //pi/2 - polar angle at the reference point
213	>	Double_t            fLambdaErr;           //error of lambda
214	>	Double_t            fPhi0;                //azimuth angle at the given point
215	>	Double_t            fPhi0Err;             //error of azimuthal angle
216	>	Double_t            fDxy;                 //transverse distance to reference point [cm]
217	>	Double_t            fDxyErr;              //error of transverse distance
218	>	Double_t            fDsz;                 //longitudinal distance to reference point [cm]
219	>	Double_t            fDszErr;              //error of longitudinal distance
220	>	Double_t            fChi2;                //chi squared of track fit
221	>	UInt_t              fNdof;                //degree-of-freedom of track fit
222	>	Double32_t          fEtaEcal;             //eta of track at Ecal front face
223	>	Double32_t          fPhiEcal;             //phi of track at Ecal front face
224	>	TRef                fSuperClusterRef;     //superCluster crossed by track
225	>	TRef                fMCParticleRef;       //reference to sim particle (for monte carlo)
226
227	<	ClassDef(Track, 1) // Track class
227	>	ClassDef(Track, 2) // Track class
228		};
229		}
230
231		//--------------------------------------------------------------------------------------------------
232	+	inline Double_t mithep::Track::D0Corrected(const BaseVertex *iVertex) const
233	+	{
234	+	// Return corrected d0 with respect to primary vertex or beamspot.
235	+
236	+	Double_t lXM =  -TMath::Sin(Phi()) * D0();
237	+	Double_t lYM =   TMath::Cos(Phi()) * D0();
238	+	Double_t lDX = (lXM + iVertex->X());
239	+	Double_t lDY = (lYM + iVertex->Y());
240	+	Double_t d0Corr = (Px()*lDY - Py()*lDX)/Pt();
241	+
242	+	return d0Corr;
243	+	}
244	+
245	+	//--------------------------------------------------------------------------------------------------
246	+	inline
247	+	void mithep::Track::SetHelix(Double_t qOverP, Double_t lambda, Double_t phi0,
248	+	Double_t dxy, Double_t dsz)
249	+	{
250	+	// Set helix parameters.
251	+
252	+	fQOverP = qOverP;
253	+	fLambda = lambda;
254	+	fPhi0   = phi0;
255	+	fDxy    = dxy;
256	+	fDsz    = dsz;
257	+	}
258	+
259	+	//--------------------------------------------------------------------------------------------------
260		inline
261	<	void mithep::Track::SetHelix(Double_t phi, Double_t d0, Double_t pt, Double_t dz, Double_t theta)
261	>	void mithep::Track::SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
262	>	Double_t dxyErr, Double_t dszErr)
263		{
264	<	fPhi   = phi;
265	<	fD0    = d0;
266	<	fPt    = pt;
267	<	fDz    = dz;
268	<	fTheta = theta;
264	>	// Set helix errors.
265	>
266	>	fQOverPErr = qOverPErr;
267	>	fLambdaErr = lambdaErr;
268	>	fPhi0Err   = phi0Err;
269	>	fDxyErr    = dxyErr;
270	>	fDszErr    = dszErr;
271		}
272
273		//--------------------------------------------------------------------------------------------------
274		inline
275	<	void mithep::Track::SetErrors(Double_t phiErr, Double_t d0Err, Double_t ptErr, Double_t dzErr,
276	<	Double_t thetaErr)
275	>	const mithep::MCParticle *mithep::Track::MCPart() const
276	>	{
277	>	// Get reference to simulated particle.
278	>
279	>	return static_cast<const MCParticle*>(fMCParticleRef.GetObject());
280	>	}
281	>
282	>	//--------------------------------------------------------------------------------------------------
283	>	inline const mithep::SuperCluster *mithep::Track::SCluster() const
284		{
285	<	fPhiErr   = phiErr;
286	<	fD0Err    = d0Err;
287	<	fPtErr    = ptErr;
288	<	fDzErr    = dzErr;
289	<	fThetaErr = thetaErr;
285	>	// Return Super cluster
286	>
287	>	return static_cast<const SuperCluster*>(fSuperClusterRef.GetObject());
288	>	}
289	>
290	>	//--------------------------------------------------------------------------------------------------
291	>	inline
292	>	const mithep::BitMask48 mithep::Track::StereoLayers()
293	>	{
294	>	// Build and return BitMask of stereo layers
295	>
296	>	mithep::BitMask48 stereoLayers;
297	>	stereoLayers.SetBit(mithep::Track::TIB1S);
298	>	stereoLayers.SetBit(mithep::Track::TIB2S);
299	>	stereoLayers.SetBit(mithep::Track::TID1S);
300	>	stereoLayers.SetBit(mithep::Track::TID2S);
301	>	stereoLayers.SetBit(mithep::Track::TID3S);
302	>	stereoLayers.SetBit(mithep::Track::TOB1S);
303	>	stereoLayers.SetBit(mithep::Track::TOB2S);
304	>	stereoLayers.SetBit(mithep::Track::TEC1S);
305	>	stereoLayers.SetBit(mithep::Track::TEC2S);
306	>	stereoLayers.SetBit(mithep::Track::TEC3S);
307	>	stereoLayers.SetBit(mithep::Track::TEC4S);
308	>	stereoLayers.SetBit(mithep::Track::TEC5S);
309	>	stereoLayers.SetBit(mithep::Track::TEC6S);
310	>	stereoLayers.SetBit(mithep::Track::TEC7S);
311	>	stereoLayers.SetBit(mithep::Track::TEC8S);
312	>	stereoLayers.SetBit(mithep::Track::TEC9S);
313	>	return stereoLayers;
314		}
315		#endif

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