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af7ba10c | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // | |
67c201be | 20 | /// \class AliESDMuonTrack |
21 | /// Class to describe the MUON tracks in the Event Summary Data class | |
22 | /// This is where the results of reconstruction are stored for the muons | |
23 | /// | |
24 | /// \author G.Martinez | |
af7ba10c | 25 | // |
26 | /////////////////////////////////////////////////////////////////////////////// | |
27 | ||
672b5f43 | 28 | #include "AliESDMuonTrack.h" |
d5efea33 | 29 | #include "AliESDMuonCluster.h" |
daf100e1 | 30 | #include "AliESDEvent.h" |
672b5f43 | 31 | |
d5efea33 | 32 | #include <TClonesArray.h> |
39b8d0dd | 33 | #include <TLorentzVector.h> |
34 | #include <TMath.h> | |
35 | ||
af7ba10c | 36 | ClassImp(AliESDMuonTrack) |
37 | ||
90e48c0c | 38 | //_____________________________________________________________________________ |
39 | AliESDMuonTrack::AliESDMuonTrack (): | |
ad85871a | 40 | AliVParticle(), |
12186235 | 41 | fInverseBendingMomentum(FLT_MAX), |
90e48c0c | 42 | fThetaX(0), |
43 | fThetaY(0), | |
44 | fZ(0), | |
45 | fBendingCoor(0), | |
46 | fNonBendingCoor(0), | |
12186235 | 47 | fInverseBendingMomentumAtDCA(FLT_MAX), |
d5efea33 | 48 | fThetaXAtDCA(0), |
49 | fThetaYAtDCA(0), | |
50 | fBendingCoorAtDCA(0), | |
51 | fNonBendingCoorAtDCA(0), | |
12186235 | 52 | fInverseBendingMomentumUncorrected(FLT_MAX), |
39b8d0dd | 53 | fThetaXUncorrected(0), |
54 | fThetaYUncorrected(0), | |
55 | fZUncorrected(0), | |
56 | fBendingCoorUncorrected(0), | |
57 | fNonBendingCoorUncorrected(0), | |
f43586f0 | 58 | fRAtAbsorberEnd(0), |
90e48c0c | 59 | fChi2(0), |
fbc3395d | 60 | fChi2MatchTrigger(0), |
01413742 | 61 | fLocalTrigger(0), |
9dea53d8 | 62 | fX1Pattern(0), |
63 | fY1Pattern(0), | |
64 | fX2Pattern(0), | |
65 | fY2Pattern(0), | |
66 | fX3Pattern(0), | |
67 | fY3Pattern(0), | |
68 | fX4Pattern(0), | |
69 | fY4Pattern(0), | |
4f036e6e | 70 | fMuonClusterMap(0), |
60765b06 | 71 | fHitsPatternInTrigCh(0), |
d5efea33 | 72 | fNHit(0), |
2e2d0c44 | 73 | fClusters(0x0), |
daf100e1 | 74 | fLabel(-1), |
75 | fESDEvent(0) | |
76 | ||
90e48c0c | 77 | { |
60765b06 | 78 | // |
67c201be | 79 | /// Default constructor |
60765b06 | 80 | // |
81 | for (Int_t i = 0; i < 15; i++) fCovariances[i] = 0; | |
90e48c0c | 82 | } |
83 | ||
84 | ||
af7ba10c | 85 | //_____________________________________________________________________________ |
4c510ac5 | 86 | AliESDMuonTrack::AliESDMuonTrack (const AliESDMuonTrack& muonTrack): |
87 | AliVParticle(muonTrack), | |
88 | fInverseBendingMomentum(muonTrack.fInverseBendingMomentum), | |
89 | fThetaX(muonTrack.fThetaX), | |
90 | fThetaY(muonTrack.fThetaY), | |
91 | fZ(muonTrack.fZ), | |
92 | fBendingCoor(muonTrack.fBendingCoor), | |
93 | fNonBendingCoor(muonTrack.fNonBendingCoor), | |
94 | fInverseBendingMomentumAtDCA(muonTrack.fInverseBendingMomentumAtDCA), | |
95 | fThetaXAtDCA(muonTrack.fThetaXAtDCA), | |
96 | fThetaYAtDCA(muonTrack.fThetaYAtDCA), | |
97 | fBendingCoorAtDCA(muonTrack.fBendingCoorAtDCA), | |
98 | fNonBendingCoorAtDCA(muonTrack.fNonBendingCoorAtDCA), | |
99 | fInverseBendingMomentumUncorrected(muonTrack.fInverseBendingMomentumUncorrected), | |
100 | fThetaXUncorrected(muonTrack.fThetaXUncorrected), | |
101 | fThetaYUncorrected(muonTrack.fThetaYUncorrected), | |
102 | fZUncorrected(muonTrack.fZUncorrected), | |
103 | fBendingCoorUncorrected(muonTrack.fBendingCoorUncorrected), | |
104 | fNonBendingCoorUncorrected(muonTrack.fNonBendingCoorUncorrected), | |
f43586f0 | 105 | fRAtAbsorberEnd(muonTrack.fRAtAbsorberEnd), |
4c510ac5 | 106 | fChi2(muonTrack.fChi2), |
107 | fChi2MatchTrigger(muonTrack.fChi2MatchTrigger), | |
108 | fLocalTrigger(muonTrack.fLocalTrigger), | |
9dea53d8 | 109 | fX1Pattern(muonTrack.fX1Pattern), |
110 | fY1Pattern(muonTrack.fY1Pattern), | |
111 | fX2Pattern(muonTrack.fX2Pattern), | |
112 | fY2Pattern(muonTrack.fY2Pattern), | |
113 | fX3Pattern(muonTrack.fX3Pattern), | |
114 | fY3Pattern(muonTrack.fY3Pattern), | |
115 | fX4Pattern(muonTrack.fX4Pattern), | |
116 | fY4Pattern(muonTrack.fY4Pattern), | |
4c510ac5 | 117 | fMuonClusterMap(muonTrack.fMuonClusterMap), |
118 | fHitsPatternInTrigCh(muonTrack.fHitsPatternInTrigCh), | |
119 | fNHit(muonTrack.fNHit), | |
2e2d0c44 | 120 | fClusters(0x0), |
daf100e1 | 121 | fLabel(muonTrack.fLabel), |
122 | fESDEvent(muonTrack.fESDEvent) | |
5ec1b3bc | 123 | { |
af7ba10c | 124 | // |
67c201be | 125 | /// Copy constructor |
126 | /// Deep copy implemented | |
af7ba10c | 127 | // |
4c510ac5 | 128 | for (Int_t i = 0; i < 15; i++) fCovariances[i] = muonTrack.fCovariances[i]; |
d5efea33 | 129 | |
130 | // necessary to make a copy of the objects and not only the pointers in TClonesArray | |
4c510ac5 | 131 | if (muonTrack.fClusters) { |
132 | fClusters = new TClonesArray("AliESDMuonCluster",muonTrack.fClusters->GetEntriesFast()); | |
133 | AliESDMuonCluster *cluster = (AliESDMuonCluster*) muonTrack.fClusters->First(); | |
d5efea33 | 134 | while (cluster) { |
135 | new ((*fClusters)[fClusters->GetEntriesFast()]) AliESDMuonCluster(*cluster); | |
4c510ac5 | 136 | cluster = (AliESDMuonCluster*) muonTrack.fClusters->After(cluster); |
d5efea33 | 137 | } |
138 | } | |
5ec1b3bc | 139 | } |
140 | ||
af7ba10c | 141 | //_____________________________________________________________________________ |
4c510ac5 | 142 | AliESDMuonTrack& AliESDMuonTrack::operator=(const AliESDMuonTrack& muonTrack) |
5ec1b3bc | 143 | { |
af7ba10c | 144 | // |
67c201be | 145 | /// Equal operator for a deep copy |
af7ba10c | 146 | // |
4c510ac5 | 147 | if (this == &muonTrack) |
5ec1b3bc | 148 | return *this; |
149 | ||
4c510ac5 | 150 | AliVParticle::operator=(muonTrack); // don't forget to invoke the base class' assignment operator |
ad85871a | 151 | |
4c510ac5 | 152 | fInverseBendingMomentum = muonTrack.fInverseBendingMomentum; |
153 | fThetaX = muonTrack.fThetaX; | |
154 | fThetaY = muonTrack.fThetaY; | |
155 | fZ = muonTrack.fZ; | |
156 | fBendingCoor = muonTrack.fBendingCoor; | |
157 | fNonBendingCoor = muonTrack.fNonBendingCoor; | |
39b8d0dd | 158 | |
4c510ac5 | 159 | fInverseBendingMomentumAtDCA = muonTrack.fInverseBendingMomentumAtDCA; |
160 | fThetaXAtDCA = muonTrack.fThetaXAtDCA; | |
161 | fThetaYAtDCA = muonTrack.fThetaYAtDCA; | |
162 | fBendingCoorAtDCA = muonTrack.fBendingCoorAtDCA; | |
163 | fNonBendingCoorAtDCA = muonTrack.fNonBendingCoorAtDCA; | |
d5efea33 | 164 | |
4c510ac5 | 165 | fInverseBendingMomentumUncorrected = muonTrack.fInverseBendingMomentumUncorrected; |
166 | fThetaXUncorrected = muonTrack.fThetaXUncorrected; | |
167 | fThetaYUncorrected = muonTrack.fThetaYUncorrected; | |
168 | fZUncorrected = muonTrack.fZUncorrected; | |
169 | fBendingCoorUncorrected = muonTrack.fBendingCoorUncorrected; | |
170 | fNonBendingCoorUncorrected = muonTrack.fNonBendingCoorUncorrected; | |
39b8d0dd | 171 | |
4c510ac5 | 172 | for (Int_t i = 0; i < 15; i++) fCovariances[i] = muonTrack.fCovariances[i]; |
60765b06 | 173 | |
f43586f0 | 174 | fRAtAbsorberEnd = muonTrack.fRAtAbsorberEnd; |
175 | ||
4c510ac5 | 176 | fChi2 = muonTrack.fChi2; |
177 | fNHit = muonTrack.fNHit; | |
8252d536 | 178 | |
4c510ac5 | 179 | fLocalTrigger = muonTrack.fLocalTrigger; |
9dea53d8 | 180 | fX1Pattern = muonTrack.fX1Pattern; |
181 | fY1Pattern = muonTrack.fY1Pattern; | |
182 | fX2Pattern = muonTrack.fX2Pattern; | |
183 | fY2Pattern = muonTrack.fY2Pattern; | |
184 | fX3Pattern = muonTrack.fX3Pattern; | |
185 | fY3Pattern = muonTrack.fY3Pattern; | |
186 | fX4Pattern = muonTrack.fX4Pattern; | |
187 | fY4Pattern = muonTrack.fY4Pattern; | |
4c510ac5 | 188 | fChi2MatchTrigger = muonTrack.fChi2MatchTrigger; |
fbc3395d | 189 | |
4c510ac5 | 190 | fHitsPatternInTrigCh = muonTrack.fHitsPatternInTrigCh; |
8252d536 | 191 | |
4c510ac5 | 192 | fMuonClusterMap = muonTrack.fMuonClusterMap; |
2e2d0c44 | 193 | |
194 | fLabel = muonTrack.fLabel; | |
daf100e1 | 195 | |
196 | fESDEvent = muonTrack.fESDEvent; | |
2e2d0c44 | 197 | |
d5efea33 | 198 | // necessary to make a copy of the objects and not only the pointers in TClonesArray |
199 | delete fClusters; | |
4c510ac5 | 200 | if (muonTrack.fClusters) { |
201 | fClusters = new TClonesArray("AliESDMuonCluster",muonTrack.fClusters->GetEntriesFast()); | |
202 | AliESDMuonCluster *cluster = (AliESDMuonCluster*) muonTrack.fClusters->First(); | |
d5efea33 | 203 | while (cluster) { |
204 | new ((*fClusters)[fClusters->GetEntriesFast()]) AliESDMuonCluster(*cluster); | |
4c510ac5 | 205 | cluster = (AliESDMuonCluster*) muonTrack.fClusters->After(cluster); |
d5efea33 | 206 | } |
207 | } else fClusters = 0x0; | |
208 | ||
5ec1b3bc | 209 | return *this; |
210 | } | |
211 | ||
732a24fe | 212 | void AliESDMuonTrack::Copy(TObject &obj) const { |
213 | ||
67c201be | 214 | /// This overwrites the virtual TOBject::Copy() |
215 | /// to allow run time copying without casting | |
216 | /// in AliESDEvent | |
732a24fe | 217 | |
218 | if(this==&obj)return; | |
219 | AliESDMuonTrack *robj = dynamic_cast<AliESDMuonTrack*>(&obj); | |
220 | if(!robj)return; // not an AliESDMuonTrack | |
221 | *robj = *this; | |
222 | ||
223 | } | |
224 | ||
225 | ||
d5efea33 | 226 | //__________________________________________________________________________ |
227 | AliESDMuonTrack::~AliESDMuonTrack() | |
228 | { | |
229 | /// Destructor | |
230 | delete fClusters; | |
231 | } | |
232 | ||
233 | //__________________________________________________________________________ | |
234 | void AliESDMuonTrack::Clear(Option_t* opt) | |
235 | { | |
236 | /// Clear arrays | |
237 | if (fClusters) fClusters->Clear(opt); | |
238 | } | |
239 | ||
12186235 | 240 | //__________________________________________________________________________ |
241 | void AliESDMuonTrack::Reset() | |
242 | { | |
243 | /// Reset to default values | |
244 | SetUniqueID(0); | |
245 | fInverseBendingMomentum = FLT_MAX; | |
246 | fThetaX = 0.; | |
247 | fThetaY = 0.; | |
248 | fZ = 0.; | |
249 | fBendingCoor = 0.; | |
250 | fNonBendingCoor = 0.; | |
251 | fInverseBendingMomentumAtDCA = FLT_MAX; | |
252 | fThetaXAtDCA = 0.; | |
253 | fThetaYAtDCA = 0.; | |
254 | fBendingCoorAtDCA = 0.; | |
255 | fNonBendingCoorAtDCA = 0.; | |
256 | fInverseBendingMomentumUncorrected = FLT_MAX; | |
257 | fThetaXUncorrected = 0.; | |
258 | fThetaYUncorrected = 0.; | |
259 | fZUncorrected = 0.; | |
260 | fBendingCoorUncorrected = 0.; | |
261 | fNonBendingCoorUncorrected = 0.; | |
f43586f0 | 262 | fRAtAbsorberEnd = 0.; |
12186235 | 263 | fChi2 = 0.; |
264 | fChi2MatchTrigger = 0.; | |
265 | fLocalTrigger = 0; | |
266 | fX1Pattern = 0; | |
267 | fY1Pattern = 0; | |
268 | fX2Pattern = 0; | |
269 | fY2Pattern = 0; | |
270 | fX3Pattern = 0; | |
271 | fY3Pattern = 0; | |
272 | fX4Pattern = 0; | |
273 | fY4Pattern = 0; | |
274 | fMuonClusterMap = 0; | |
275 | fHitsPatternInTrigCh = 0; | |
276 | fNHit = 0; | |
277 | delete fClusters; fClusters = 0x0; | |
278 | for (Int_t i = 0; i < 15; i++) fCovariances[i] = 0.; | |
2e2d0c44 | 279 | fLabel = -1; |
daf100e1 | 280 | fESDEvent = 0; |
12186235 | 281 | } |
282 | ||
60765b06 | 283 | //_____________________________________________________________________________ |
284 | void AliESDMuonTrack::GetCovariances(TMatrixD& cov) const | |
285 | { | |
67c201be | 286 | /// return covariance matrix of uncorrected parameters |
60765b06 | 287 | cov.ResizeTo(5,5); |
288 | for (Int_t i = 0; i < 5; i++) | |
289 | for (Int_t j = 0; j <= i; j++) | |
290 | cov(i,j) = cov (j,i) = fCovariances[i*(i+1)/2 + j]; | |
291 | } | |
292 | ||
293 | //_____________________________________________________________________________ | |
294 | void AliESDMuonTrack::SetCovariances(const TMatrixD& cov) | |
295 | { | |
67c201be | 296 | /// set reduced covariance matrix of uncorrected parameters |
60765b06 | 297 | for (Int_t i = 0; i < 5; i++) |
298 | for (Int_t j = 0; j <= i; j++) | |
299 | fCovariances[i*(i+1)/2 + j] = cov(i,j); | |
300 | ||
301 | } | |
302 | ||
303 | //_____________________________________________________________________________ | |
304 | void AliESDMuonTrack::GetCovarianceXYZPxPyPz(Double_t cov[21]) const | |
305 | { | |
67c201be | 306 | /// return reduced covariance matrix of uncorrected parameters in (X,Y,Z,Px,Py,Pz) coordinate system |
307 | /// | |
308 | /// - Cov(x,x) ... : cov[0] | |
309 | /// - Cov(y,x) ... : cov[1] cov[2] | |
310 | /// - Cov(z,x) ... : cov[3] cov[4] cov[5] | |
311 | /// - Cov(px,x)... : cov[6] cov[7] cov[8] cov[9] | |
312 | /// - Cov(py,x)... : cov[10] cov[11] cov[12] cov[13] cov[14] | |
313 | /// - Cov(pz,x)... : cov[15] cov[16] cov[17] cov[18] cov[19] cov[20] | |
314 | /// | |
315 | /// Get ESD covariance matrix into a TMatrixD | |
60765b06 | 316 | TMatrixD covESD(5,5); |
317 | GetCovariances(covESD); | |
318 | ||
319 | // compute Jacobian to change the coordinate system | |
320 | // from (X,thetaX,Y,thetaY,c/pYZ) to (X,Y,Z,pX,pY,pZ) | |
321 | Double_t tanThetaX = TMath::Tan(fThetaXUncorrected); | |
322 | Double_t tanThetaY = TMath::Tan(fThetaYUncorrected); | |
323 | Double_t cosThetaX2 = TMath::Cos(fThetaXUncorrected) * TMath::Cos(fThetaXUncorrected); | |
324 | Double_t cosThetaY2 = TMath::Cos(fThetaYUncorrected) * TMath::Cos(fThetaYUncorrected); | |
325 | Double_t pZ = PzUncorrected(); | |
326 | Double_t dpZdthetaY = - fInverseBendingMomentumUncorrected * fInverseBendingMomentumUncorrected * | |
327 | pZ * pZ * pZ * tanThetaY / cosThetaY2; | |
4c510ac5 | 328 | Double_t dpZdinvpYZ = (fInverseBendingMomentumUncorrected != 0.) ? - pZ / fInverseBendingMomentumUncorrected : - FLT_MAX; |
60765b06 | 329 | TMatrixD jacob(6,5); |
330 | jacob.Zero(); | |
331 | jacob(0,0) = 1.; | |
332 | jacob(1,2) = 1.; | |
333 | jacob(3,1) = pZ / cosThetaX2; | |
334 | jacob(3,3) = dpZdthetaY * tanThetaX; | |
335 | jacob(3,4) = dpZdinvpYZ * tanThetaX; | |
336 | jacob(4,3) = dpZdthetaY * tanThetaY + pZ / cosThetaY2; | |
337 | jacob(4,4) = dpZdinvpYZ * tanThetaY; | |
338 | jacob(5,3) = dpZdthetaY; | |
339 | jacob(5,4) = dpZdinvpYZ; | |
340 | ||
341 | // compute covariance matrix in AOD coordinate system | |
342 | TMatrixD tmp(covESD,TMatrixD::kMultTranspose,jacob); | |
343 | TMatrixD covAOD(jacob,TMatrixD::kMult,tmp); | |
344 | ||
345 | // Get AOD covariance matrix into co[21] | |
346 | for (Int_t i = 0; i < 6; i++) | |
347 | for (Int_t j = 0; j <= i; j++) | |
348 | cov[i*(i+1)/2 + j] = covAOD(i,j); | |
349 | ||
350 | } | |
351 | ||
39b8d0dd | 352 | //_____________________________________________________________________________ |
353 | Double_t AliESDMuonTrack::Px() const | |
354 | { | |
67c201be | 355 | /// return p_x from track parameters |
39b8d0dd | 356 | Double_t nonBendingSlope = TMath::Tan(fThetaX); |
357 | Double_t bendingSlope = TMath::Tan(fThetaY); | |
4c510ac5 | 358 | Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : - FLT_MAX; |
39b8d0dd | 359 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
360 | return pZ * nonBendingSlope; | |
361 | } | |
362 | ||
363 | //_____________________________________________________________________________ | |
364 | Double_t AliESDMuonTrack::Py() const | |
365 | { | |
67c201be | 366 | /// return p_y from track parameters |
39b8d0dd | 367 | Double_t bendingSlope = TMath::Tan(fThetaY); |
4c510ac5 | 368 | Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : - FLT_MAX; |
39b8d0dd | 369 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
370 | return pZ * bendingSlope; | |
371 | } | |
372 | ||
373 | //_____________________________________________________________________________ | |
374 | Double_t AliESDMuonTrack::Pz() const | |
375 | { | |
67c201be | 376 | /// return p_z from track parameters |
39b8d0dd | 377 | Double_t bendingSlope = TMath::Tan(fThetaY); |
4c510ac5 | 378 | Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : - FLT_MAX; |
39b8d0dd | 379 | return -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
380 | } | |
381 | ||
382 | //_____________________________________________________________________________ | |
383 | Double_t AliESDMuonTrack::P() const | |
384 | { | |
67c201be | 385 | /// return p from track parameters |
39b8d0dd | 386 | Double_t nonBendingSlope = TMath::Tan(fThetaX); |
387 | Double_t bendingSlope = TMath::Tan(fThetaY); | |
4c510ac5 | 388 | Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : - FLT_MAX; |
39b8d0dd | 389 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
390 | return -pZ * TMath::Sqrt(1.0 + bendingSlope*bendingSlope + nonBendingSlope*nonBendingSlope); | |
391 | } | |
392 | ||
393 | //_____________________________________________________________________________ | |
394 | void AliESDMuonTrack::LorentzP(TLorentzVector& vP) const | |
395 | { | |
67c201be | 396 | /// return Lorentz momentum vector from track parameters |
60765b06 | 397 | Double_t muonMass = M(); |
39b8d0dd | 398 | Double_t nonBendingSlope = TMath::Tan(fThetaX); |
399 | Double_t bendingSlope = TMath::Tan(fThetaY); | |
4c510ac5 | 400 | Double_t pYZ = (fInverseBendingMomentum != 0.) ? TMath::Abs(1. / fInverseBendingMomentum) : - FLT_MAX; |
39b8d0dd | 401 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
402 | Double_t pX = pZ * nonBendingSlope; | |
403 | Double_t pY = pZ * bendingSlope; | |
404 | Double_t e = TMath::Sqrt(muonMass*muonMass + pX*pX + pY*pY + pZ*pZ); | |
405 | vP.SetPxPyPzE(pX, pY, pZ, e); | |
406 | } | |
407 | ||
d5efea33 | 408 | //_____________________________________________________________________________ |
409 | Double_t AliESDMuonTrack::PxAtDCA() const | |
410 | { | |
67c201be | 411 | /// return p_x from track parameters |
d5efea33 | 412 | Double_t nonBendingSlope = TMath::Tan(fThetaXAtDCA); |
413 | Double_t bendingSlope = TMath::Tan(fThetaYAtDCA); | |
4c510ac5 | 414 | Double_t pYZ = (fInverseBendingMomentumAtDCA != 0.) ? TMath::Abs(1. / fInverseBendingMomentumAtDCA) : - FLT_MAX; |
d5efea33 | 415 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
416 | return pZ * nonBendingSlope; | |
417 | } | |
418 | ||
419 | //_____________________________________________________________________________ | |
420 | Double_t AliESDMuonTrack::PyAtDCA() const | |
421 | { | |
67c201be | 422 | /// return p_y from track parameters |
d5efea33 | 423 | Double_t bendingSlope = TMath::Tan(fThetaYAtDCA); |
4c510ac5 | 424 | Double_t pYZ = (fInverseBendingMomentumAtDCA != 0.) ? TMath::Abs(1. / fInverseBendingMomentumAtDCA) : - FLT_MAX; |
d5efea33 | 425 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
426 | return pZ * bendingSlope; | |
427 | } | |
428 | ||
429 | //_____________________________________________________________________________ | |
430 | Double_t AliESDMuonTrack::PzAtDCA() const | |
431 | { | |
67c201be | 432 | /// return p_z from track parameters |
d5efea33 | 433 | Double_t bendingSlope = TMath::Tan(fThetaYAtDCA); |
4c510ac5 | 434 | Double_t pYZ = (fInverseBendingMomentumAtDCA != 0.) ? TMath::Abs(1. / fInverseBendingMomentumAtDCA) : - FLT_MAX; |
d5efea33 | 435 | return -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
436 | } | |
437 | ||
438 | //_____________________________________________________________________________ | |
439 | Double_t AliESDMuonTrack::PAtDCA() const | |
440 | { | |
67c201be | 441 | /// return p from track parameters |
d5efea33 | 442 | Double_t nonBendingSlope = TMath::Tan(fThetaXAtDCA); |
443 | Double_t bendingSlope = TMath::Tan(fThetaYAtDCA); | |
4c510ac5 | 444 | Double_t pYZ = (fInverseBendingMomentumAtDCA != 0.) ? TMath::Abs(1. / fInverseBendingMomentumAtDCA) : - FLT_MAX; |
d5efea33 | 445 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
446 | return -pZ * TMath::Sqrt(1.0 + bendingSlope*bendingSlope + nonBendingSlope*nonBendingSlope); | |
447 | } | |
448 | ||
449 | //_____________________________________________________________________________ | |
450 | void AliESDMuonTrack::LorentzPAtDCA(TLorentzVector& vP) const | |
451 | { | |
67c201be | 452 | /// return Lorentz momentum vector from track parameters |
d5efea33 | 453 | Double_t muonMass = M(); |
454 | Double_t nonBendingSlope = TMath::Tan(fThetaXAtDCA); | |
455 | Double_t bendingSlope = TMath::Tan(fThetaYAtDCA); | |
4c510ac5 | 456 | Double_t pYZ = (fInverseBendingMomentumAtDCA != 0.) ? TMath::Abs(1. / fInverseBendingMomentumAtDCA) : - FLT_MAX; |
d5efea33 | 457 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
458 | Double_t pX = pZ * nonBendingSlope; | |
459 | Double_t pY = pZ * bendingSlope; | |
460 | Double_t e = TMath::Sqrt(muonMass*muonMass + pX*pX + pY*pY + pZ*pZ); | |
461 | vP.SetPxPyPzE(pX, pY, pZ, e); | |
462 | } | |
463 | ||
39b8d0dd | 464 | //_____________________________________________________________________________ |
465 | Double_t AliESDMuonTrack::PxUncorrected() const | |
466 | { | |
67c201be | 467 | /// return p_x from track parameters |
39b8d0dd | 468 | Double_t nonBendingSlope = TMath::Tan(fThetaXUncorrected); |
469 | Double_t bendingSlope = TMath::Tan(fThetaYUncorrected); | |
4c510ac5 | 470 | Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : - FLT_MAX; |
39b8d0dd | 471 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
472 | return pZ * nonBendingSlope; | |
473 | } | |
474 | ||
475 | //_____________________________________________________________________________ | |
476 | Double_t AliESDMuonTrack::PyUncorrected() const | |
477 | { | |
67c201be | 478 | /// return p_y from track parameters |
39b8d0dd | 479 | Double_t bendingSlope = TMath::Tan(fThetaYUncorrected); |
4c510ac5 | 480 | Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : - FLT_MAX; |
39b8d0dd | 481 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
482 | return pZ * bendingSlope; | |
483 | } | |
484 | ||
485 | //_____________________________________________________________________________ | |
486 | Double_t AliESDMuonTrack::PzUncorrected() const | |
487 | { | |
67c201be | 488 | /// return p_z from track parameters |
39b8d0dd | 489 | Double_t bendingSlope = TMath::Tan(fThetaYUncorrected); |
4c510ac5 | 490 | Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : - FLT_MAX; |
39b8d0dd | 491 | return -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
492 | } | |
493 | ||
494 | //_____________________________________________________________________________ | |
495 | Double_t AliESDMuonTrack::PUncorrected() const | |
496 | { | |
67c201be | 497 | /// return p from track parameters |
39b8d0dd | 498 | Double_t nonBendingSlope = TMath::Tan(fThetaXUncorrected); |
499 | Double_t bendingSlope = TMath::Tan(fThetaYUncorrected); | |
4c510ac5 | 500 | Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : - FLT_MAX; |
39b8d0dd | 501 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
502 | return -pZ * TMath::Sqrt(1.0 + bendingSlope*bendingSlope + nonBendingSlope*nonBendingSlope); | |
503 | } | |
504 | ||
505 | //_____________________________________________________________________________ | |
506 | void AliESDMuonTrack::LorentzPUncorrected(TLorentzVector& vP) const | |
507 | { | |
67c201be | 508 | /// return Lorentz momentum vector from track parameters |
60765b06 | 509 | Double_t muonMass = M(); |
39b8d0dd | 510 | Double_t nonBendingSlope = TMath::Tan(fThetaXUncorrected); |
511 | Double_t bendingSlope = TMath::Tan(fThetaYUncorrected); | |
4c510ac5 | 512 | Double_t pYZ = (fInverseBendingMomentumUncorrected != 0.) ? TMath::Abs(1. / fInverseBendingMomentumUncorrected) : - FLT_MAX; |
39b8d0dd | 513 | Double_t pZ = -pYZ / TMath::Sqrt(1.0 + bendingSlope*bendingSlope); // spectro. (z<0) |
514 | Double_t pX = pZ * nonBendingSlope; | |
515 | Double_t pY = pZ * bendingSlope; | |
516 | Double_t e = TMath::Sqrt(muonMass*muonMass + pX*pX + pY*pY + pZ*pZ); | |
517 | vP.SetPxPyPzE(pX, pY, pZ, e); | |
518 | } | |
672b5f43 | 519 | |
423b32ca | 520 | //_____________________________________________________________________________ |
521 | Int_t AliESDMuonTrack::GetMatchTrigger() const | |
522 | { | |
67c201be | 523 | /// backward compatibility after replacing fMatchTrigger by fLocalTrigger |
524 | /// - 0 track does not match trigger | |
525 | /// - 1 track match but does not pass pt cut | |
526 | /// - 2 track match Low pt cut | |
527 | /// - 3 track match High pt cut | |
423b32ca | 528 | |
01413742 | 529 | if (!LoCircuit()) { |
423b32ca | 530 | return 0; |
531 | } else if (LoLpt() == 0 && LoHpt() == 0) { | |
532 | return 1; | |
533 | } else if (LoLpt() > 0 && LoHpt() == 0) { | |
534 | return 2; | |
535 | } else { | |
536 | return 3; | |
537 | } | |
538 | ||
539 | } | |
540 | ||
2200238e | 541 | //_____________________________________________________________________________ |
542 | Bool_t AliESDMuonTrack::MatchTriggerDigits() const | |
543 | { | |
544 | // return kTRUE if the track matches a digit on both planes of at least 2 trigger chambers | |
545 | ||
546 | Int_t nMatchedChambers = 0; | |
547 | for (Int_t ich=0; ich<4; ich++) | |
548 | if (IsChamberHit(fHitsPatternInTrigCh, 0, ich) && | |
549 | IsChamberHit(fHitsPatternInTrigCh, 1, ich)) nMatchedChambers++; | |
550 | ||
551 | return (nMatchedChambers >= 2); | |
552 | } | |
553 | ||
4c510ac5 | 554 | //_____________________________________________________________________________ |
555 | Int_t AliESDMuonTrack::GetNClusters() const | |
556 | { | |
67c201be | 557 | /// return the number of clusters associated to the track |
4c510ac5 | 558 | if (!fClusters) return 0; |
559 | ||
560 | return fClusters->GetEntriesFast(); | |
561 | } | |
562 | ||
d5efea33 | 563 | //_____________________________________________________________________________ |
564 | TClonesArray& AliESDMuonTrack::GetClusters() const | |
565 | { | |
67c201be | 566 | /// return the array of clusters associated to the track |
d5efea33 | 567 | if (!fClusters) fClusters = new TClonesArray("AliESDMuonCluster",10); |
568 | ||
569 | return *fClusters; | |
570 | } | |
571 | ||
572 | //_____________________________________________________________________________ | |
573 | void AliESDMuonTrack::AddCluster(const AliESDMuonCluster &cluster) | |
574 | { | |
67c201be | 575 | /// add a cluster to the TClonesArray of clusters associated to the track |
d5efea33 | 576 | if (!fClusters) fClusters = new TClonesArray("AliESDMuonCluster",10); |
577 | ||
578 | new ((*fClusters)[fClusters->GetEntriesFast()]) AliESDMuonCluster(cluster); | |
579 | } | |
580 | ||
581 | //_____________________________________________________________________________ | |
582 | Bool_t AliESDMuonTrack::ClustersStored() const | |
583 | { | |
67c201be | 584 | /// return kTRUE if the clusters associated to the track are registered |
4c510ac5 | 585 | if (GetNClusters() == 0) return kFALSE; |
d5efea33 | 586 | |
587 | return kTRUE; | |
588 | } | |
589 | ||
67c201be | 590 | //_____________________________________________________________________________ |
591 | void AliESDMuonTrack::SetFiredChamber(UShort_t& pattern, Int_t cathode, Int_t chamber) | |
592 | { | |
593 | /// Turn on the bit corresponding to fired chameber | |
594 | pattern |= (0x1 << ( 7 - ( 4*cathode + chamber ))); | |
595 | } | |
596 | ||
597 | //_____________________________________________________________________________ | |
598 | void AliESDMuonTrack::AddEffInfo(UShort_t& pattern, Int_t slatOrInfo, EAliTriggerChPatternFlag effType) | |
599 | { | |
600 | /// Add efficiency flag and crossed RPC or info on rejected track | |
601 | pattern |= effType << 8; | |
602 | pattern |= slatOrInfo << 10; | |
603 | } | |
604 | ||
605 | //_____________________________________________________________________________ | |
606 | Bool_t AliESDMuonTrack::IsChamberHit(UShort_t pattern, Int_t cathode, Int_t chamber) | |
607 | { | |
608 | /// Check if chamber was was hit | |
609 | return (pattern >> (7 - ( 4*cathode + chamber ))) & 0x1; | |
610 | } | |
611 | ||
612 | //_____________________________________________________________________________ | |
613 | Int_t AliESDMuonTrack::GetEffFlag(UShort_t pattern) | |
614 | { | |
615 | /// Get Efficiency flag | |
616 | return (pattern >> 8) & 0x03; | |
617 | } | |
618 | ||
619 | //_____________________________________________________________________________ | |
620 | Int_t AliESDMuonTrack::GetSlatOrInfo(UShort_t pattern) | |
621 | { | |
622 | /// Getting crossed slat or info | |
623 | return (pattern >> 10) & 0x1F; | |
624 | } |