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6ad0bfa0 | 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 | ||
b2a60966 | 16 | /* $Id$ */ |
17 | ||
6ad0bfa0 | 18 | //_________________________________________________________________________ |
b2a60966 | 19 | // Implementation version v1 of the PHOS particle identifier |
7acf6008 | 20 | // Particle identification based on the |
148b2bba | 21 | // - RCPV: distance from CPV recpoint to EMCA recpoint. |
22 | // - TOF | |
23 | // - PCA: Principal Components Analysis.. | |
24 | // The identified particle has an identification number corresponding | |
25 | // to a 9 bits number: | |
26 | // -Bit 0 to 2: bit set if RCPV > fCpvEmcDistance (each bit corresponds | |
27 | // to a different efficiency-purity point of the photon identification) | |
28 | // -Bit 3 to 5: bit set if TOF < fTimeGate (each bit corresponds | |
29 | // to a different efficiency-purity point of the photon identification) | |
30 | // -Bit 6 to 9: bit set if Principal Components are | |
31 | // inside an ellipse defined by fX_center, fY_center, fA, fB, fAngle | |
32 | // (each bit corresponds to a different efficiency-purity point of the | |
33 | // photon identification) | |
a4e98857 | 34 | // |
7acf6008 | 35 | // |
a4e98857 | 36 | // use case: |
f0a4c9e9 | 37 | // root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root","v1") |
a4e98857 | 38 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
148b2bba | 39 | // // reading headers from file galice1.root and create RecParticles with title v1 |
40 | // TrackSegments and RecPoints with title "v1" are used | |
7acf6008 | 41 | // // set file name for the branch RecParticles |
f0a4c9e9 | 42 | // root [1] p->ExecuteTask("deb all time") |
7acf6008 | 43 | // // available options |
44 | // // "deb" - prints # of reconstructed particles | |
45 | // // "deb all" - prints # and list of RecParticles | |
46 | // // "time" - prints benchmarking results | |
47 | // | |
f0a4c9e9 | 48 | // root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1","v0") |
148b2bba | 49 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50 | // // reading headers from file galice1.root and create RecParticles with title v1 | |
51 | // RecPoints and TrackSegments with title "v0" are used | |
f0a4c9e9 | 52 | // root [3] p2->ExecuteTask() |
53 | // | |
54 | // There are two possible principal files available to do the analysis. | |
55 | // One for energy ranges from 0.5 to 5 GeV, the default one, and another | |
56 | // one from 0.5 to 100 GeV. To do the analysis with one of this files, | |
57 | // Use case | |
58 | // root [0] AliPHOSPIDv1 p("galice.root") | |
59 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated | |
60 | // root [1] p.SetParameters("Wide energy range") (0.5-100 GeV) | |
61 | // root [2] p.ExecuteTask("deb") | |
62 | // or | |
63 | // root [0] AliPHOSPIDv1 p("galice.root") | |
64 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated | |
65 | // root [1] p.SetParameters("Small energy range") (0.5-5 GeV) | |
66 | // or | |
67 | // p.SetParameters("Default") (0.5-5 GeV) | |
68 | // root [2] p.ExecuteTask("deb") | |
69 | ||
7acf6008 | 70 | //*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & |
148b2bba | 71 | // Gustavo Conesa April 2002 |
6ad0bfa0 | 72 | |
73 | // --- ROOT system --- | |
7acf6008 | 74 | #include "TROOT.h" |
75 | #include "TTree.h" | |
76 | #include "TFile.h" | |
77 | #include "TF2.h" | |
78 | #include "TFormula.h" | |
79 | #include "TCanvas.h" | |
80 | #include "TFolder.h" | |
81 | #include "TSystem.h" | |
82 | #include "TBenchmark.h" | |
148b2bba | 83 | #include "TMatrixD.h" |
84 | #include "TPrincipal.h" | |
85 | #include "TSystem.h" | |
86 | ||
6ad0bfa0 | 87 | // --- Standard library --- |
88 | ||
de9ec31b | 89 | #include <iostream.h> |
148b2bba | 90 | #include <fstream.h> |
7acf6008 | 91 | #include <iomanip.h> |
6ad0bfa0 | 92 | |
93 | // --- AliRoot header files --- | |
94 | ||
7acf6008 | 95 | #include "AliRun.h" |
96 | #include "AliGenerator.h" | |
97 | #include "AliPHOS.h" | |
26d4b141 | 98 | #include "AliPHOSPIDv1.h" |
7acf6008 | 99 | #include "AliPHOSClusterizerv1.h" |
6ad0bfa0 | 100 | #include "AliPHOSTrackSegment.h" |
7acf6008 | 101 | #include "AliPHOSTrackSegmentMakerv1.h" |
6ad0bfa0 | 102 | #include "AliPHOSRecParticle.h" |
7b7c1533 | 103 | #include "AliPHOSGeometry.h" |
104 | #include "AliPHOSGetter.h" | |
6ad0bfa0 | 105 | |
26d4b141 | 106 | ClassImp( AliPHOSPIDv1) |
6ad0bfa0 | 107 | |
1cb7c1ee | 108 | //____________________________________________________________________________ |
109 | AliPHOSPIDv1::AliPHOSPIDv1():AliPHOSPID() | |
110 | { | |
a4e98857 | 111 | // default ctor |
148b2bba | 112 | |
8d0f3f77 | 113 | InitParameters() ; |
7acf6008 | 114 | } |
115 | ||
116 | //____________________________________________________________________________ | |
148b2bba | 117 | AliPHOSPIDv1::AliPHOSPIDv1(const char * headerFile,const char * name, const char * from) : AliPHOSPID(headerFile, name) |
e0ed2e49 | 118 | |
119 | ||
7acf6008 | 120 | { |
a4e98857 | 121 | //ctor with the indication on where to look for the track segments |
7b7c1533 | 122 | |
8d0f3f77 | 123 | InitParameters() ; |
124 | ||
148b2bba | 125 | if ( from == 0 ) |
126 | fFrom = name ; | |
127 | else | |
128 | fFrom = from ; | |
8d0f3f77 | 129 | |
2bd5457f | 130 | Init() ; |
7acf6008 | 131 | |
132 | } | |
7b7c1533 | 133 | |
7acf6008 | 134 | //____________________________________________________________________________ |
135 | AliPHOSPIDv1::~AliPHOSPIDv1() | |
136 | { | |
79bb1b62 | 137 | // dtor |
138 | // gime=0 if PID created by default ctor (to get just the parameters) | |
139 | ||
a496c46c | 140 | delete [] fX ; // Principal input |
148b2bba | 141 | delete [] fP ; // Principal components |
142 | delete fParameters ; // Matrix of Parameters | |
8d0f3f77 | 143 | |
144 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
145 | ||
79bb1b62 | 146 | if (gime) { |
147 | // remove the task from the folder list | |
148 | gime->RemoveTask("P",GetName()) ; | |
149 | TString name(GetName()) ; | |
150 | name.ReplaceAll("pid", "clu") ; | |
151 | gime->RemoveTask("C",name) ; | |
152 | ||
153 | // remove the data from the folder list | |
154 | name = GetName() ; | |
155 | name.Remove(name.Index(":")) ; | |
156 | gime->RemoveObjects("RE", name) ; // EMCARecPoints | |
157 | gime->RemoveObjects("RC", name) ; // CPVRecPoints | |
158 | gime->RemoveObjects("T", name) ; // TrackSegments | |
159 | gime->RemoveObjects("P", name) ; // RecParticles | |
160 | ||
161 | // Delete gAlice | |
162 | gime->CloseFile() ; | |
8d0f3f77 | 163 | |
79bb1b62 | 164 | fSplitFile = 0 ; |
165 | } | |
7acf6008 | 166 | } |
2bd5457f | 167 | |
a496c46c | 168 | //____________________________________________________________________________ |
169 | const TString AliPHOSPIDv1::BranchName() const | |
170 | { | |
171 | TString branchName(GetName() ) ; | |
172 | branchName.Remove(branchName.Index(Version())-1) ; | |
173 | return branchName ; | |
174 | } | |
175 | ||
148b2bba | 176 | //____________________________________________________________________________ |
177 | void AliPHOSPIDv1::Init() | |
178 | { | |
179 | // Make all memory allocations that are not possible in default constructor | |
180 | // Add the PID task to the list of PHOS tasks | |
a496c46c | 181 | |
148b2bba | 182 | if ( strcmp(GetTitle(), "") == 0 ) |
183 | SetTitle("galice.root") ; | |
8d0f3f77 | 184 | |
148b2bba | 185 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(), fFrom.Data()) ; |
186 | ||
a496c46c | 187 | gime->SetRecParticlesTitle(BranchName()) ; |
148b2bba | 188 | if ( gime == 0 ) { |
189 | cerr << "ERROR: AliPHOSPIDv1::Init -> Could not obtain the Getter object !" << endl ; | |
190 | return ; | |
191 | } | |
a496c46c | 192 | |
148b2bba | 193 | gime->PostPID(this) ; |
194 | // create a folder on the white board //YSAlice/WhiteBoard/RecParticles/PHOS/recparticlesName | |
a496c46c | 195 | gime->PostRecParticles(BranchName()) ; |
148b2bba | 196 | |
197 | } | |
8d0f3f77 | 198 | |
199 | //____________________________________________________________________________ | |
200 | void AliPHOSPIDv1::InitParameters() | |
201 | { | |
202 | fFrom = "" ; | |
203 | fHeaderFileName = GetTitle() ; | |
204 | TString name(GetName()) ; | |
205 | if (name.IsNull()) | |
206 | name = "Default" ; | |
207 | fTrackSegmentsTitle = name ; | |
208 | fRecPointsTitle = name ; | |
209 | fRecParticlesTitle = name ; | |
210 | name.Append(":") ; | |
211 | name.Append(Version()) ; | |
212 | SetName(name) ; | |
213 | fRecParticlesInRun = 0 ; | |
214 | fOptFileName = "Default" ; | |
215 | fNEvent = 0 ; | |
216 | fClusterizer = 0 ; | |
217 | fTSMaker = 0 ; | |
218 | fRecParticlesInRun = 0 ; | |
219 | SetParameters(fOptFileName) ; // fill the parameters matrix from parameters file | |
220 | } | |
221 | ||
69183710 | 222 | //____________________________________________________________________________ |
148b2bba | 223 | Double_t AliPHOSPIDv1::GetCpvtoEmcDistanceCut(const Float_t Cluster_En, const TString Eff_Pur)const |
224 | { | |
225 | // Get CpvtoEmcDistanceCut parameter depending on the cluster energy and | |
226 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
227 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
228 | // EFFICIENCY by PURITY) | |
229 | ||
f0a4c9e9 | 230 | Int_t cluster = GetClusterOption(Cluster_En,kTRUE); |
231 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
148b2bba | 232 | |
f0a4c9e9 | 233 | if((cluster!= -1)||(eff_pur != -1)) |
148b2bba | 234 | return (*fParameters)(cluster,eff_pur) ; |
f0a4c9e9 | 235 | |
148b2bba | 236 | } |
237 | //____________________________________________________________________________ | |
238 | ||
239 | Double_t AliPHOSPIDv1::GetTimeGate(const Float_t Cluster_En, const TString Eff_Pur) const | |
240 | { | |
241 | // Get TimeGate parameter depending on the cluster energy and | |
242 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
243 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
244 | // EFFICIENCY by PURITY) | |
148b2bba | 245 | |
f0a4c9e9 | 246 | Int_t cluster = GetClusterOption( Cluster_En,kFALSE); |
247 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
248 | ||
249 | if((cluster!= -1)||(eff_pur != -1)) | |
250 | return (*fParameters)(cluster+3+fCluster,eff_pur) ; | |
148b2bba | 251 | |
148b2bba | 252 | } |
253 | //_____________________________________________________________________________ | |
7acf6008 | 254 | Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSRecPoint * cpv, Option_t * Axis)const |
69183710 | 255 | { |
256 | // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
148b2bba | 257 | |
7b7c1533 | 258 | const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ; |
69183710 | 259 | TVector3 vecEmc ; |
7acf6008 | 260 | TVector3 vecCpv ; |
148b2bba | 261 | if(cpv){ |
262 | emc->GetLocalPosition(vecEmc) ; | |
263 | cpv->GetLocalPosition(vecCpv) ; | |
264 | if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ | |
265 | // Correct to difference in CPV and EMC position due to different distance to center. | |
266 | // we assume, that particle moves from center | |
267 | Float_t dCPV = geom->GetIPtoOuterCoverDistance(); | |
268 | Float_t dEMC = geom->GetIPtoCrystalSurface() ; | |
269 | dEMC = dEMC / dCPV ; | |
270 | vecCpv = dEMC * vecCpv - vecEmc ; | |
271 | if (Axis == "X") return vecCpv.X(); | |
272 | if (Axis == "Y") return vecCpv.Y(); | |
273 | if (Axis == "Z") return vecCpv.Z(); | |
274 | if (Axis == "R") return vecCpv.Mag(); | |
7acf6008 | 275 | } |
148b2bba | 276 | |
277 | return 100000000 ; | |
278 | } | |
7acf6008 | 279 | return 100000000 ; |
69183710 | 280 | } |
281 | ||
6ad0bfa0 | 282 | //____________________________________________________________________________ |
148b2bba | 283 | Int_t AliPHOSPIDv1::GetPrincipalSign(Double_t* P, Int_t cluster, Int_t eff_pur )const |
284 | { | |
285 | //This method gives if the PCA of the particle are inside a defined ellipse | |
286 | ||
287 | // Get the parameters that define the ellipse stored in the | |
288 | // fParameters matrix. | |
289 | Double_t X_center = (*fParameters)(cluster+6,eff_pur) ; | |
290 | Double_t Y_center = (*fParameters)(cluster+9,eff_pur) ; | |
291 | Double_t A = (*fParameters)(cluster+12,eff_pur) ; | |
292 | Double_t B = (*fParameters)(cluster+15,eff_pur) ; | |
293 | Double_t Angle = (*fParameters)(cluster+18,eff_pur) ; | |
294 | ||
295 | Int_t prinsign; | |
296 | Double_t Dx = 0. ; | |
297 | Double_t Delta = 0. ; | |
298 | Double_t Y = 0. ; | |
299 | Double_t Y_1 = 0. ; | |
300 | Double_t Y_2 = 0. ; | |
301 | Double_t Pi = TMath::Pi() ; | |
302 | Double_t Cos_Theta = TMath::Cos(Pi*Angle/180.) ; | |
303 | Double_t Sin_Theta = TMath::Sin(Pi*Angle/180.) ; | |
304 | ||
305 | Dx = P[0] - X_center ; | |
306 | Delta = 4.*A*A*A*B* (A*A*Cos_Theta*Cos_Theta | |
307 | + B*B*Sin_Theta*Sin_Theta - Dx*Dx) ; | |
308 | if (Delta < 0.) | |
309 | {prinsign=0;} | |
310 | ||
311 | else if (Delta == 0.) | |
312 | { | |
313 | Y = Cos_Theta*Sin_Theta*(A*A - B*B)*Dx / | |
314 | (A*A*Cos_Theta*Cos_Theta + B*B*Sin_Theta*Sin_Theta) ; | |
315 | Y += Y_center ; | |
316 | if(P[1]==Y ) | |
317 | {prinsign=1;} | |
318 | else | |
319 | {prinsign=0;} | |
320 | } | |
321 | else | |
322 | { | |
323 | Y_1 = (Cos_Theta*Sin_Theta*(A*A - B*B) *Dx + | |
324 | TMath::Sqrt(Delta)/2.)/(A*A*Cos_Theta*Cos_Theta + | |
325 | B*B*Sin_Theta*Sin_Theta) ; | |
326 | Y_2 = (Cos_Theta*Sin_Theta*(A*A - B*B) *Dx - | |
327 | TMath::Sqrt(Delta)/2.)/(A*A*Cos_Theta*Cos_Theta | |
328 | + B*B*Sin_Theta*Sin_Theta) ; | |
329 | Y_1 += Y_center ; | |
330 | Y_2 += Y_center ; | |
331 | if ((P[1]<=Y_1) && (P[1]>=Y_2)) | |
332 | {prinsign=1;} | |
333 | else | |
334 | {prinsign=0;} | |
335 | } | |
336 | return prinsign; | |
337 | } | |
338 | ||
339 | //____________________________________________________________________________ | |
e0ed2e49 | 340 | void AliPHOSPIDv1::SetPrincipalFileOptions(TString OptFileName) { |
f0a4c9e9 | 341 | fOptFileName = OptFileName ; |
e0ed2e49 | 342 | |
f0a4c9e9 | 343 | if(fOptFileName.Contains("Small energy range")||fOptFileName.Contains("Default")){ |
e0ed2e49 | 344 | fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-5.root" ; |
345 | fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters_0.5_5.dat"); | |
f0a4c9e9 | 346 | fCluster = 0 ; |
e0ed2e49 | 347 | } |
348 | ||
f0a4c9e9 | 349 | else if(fOptFileName.Contains("Wide energy range")){ |
e0ed2e49 | 350 | fFileName = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ; |
351 | fFileNamePar = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters_0.5_100.dat"); | |
f0a4c9e9 | 352 | fCluster = 3 ; |
353 | } | |
354 | else{ | |
355 | cout<<" Invalid energy range option "<<endl; | |
356 | cout<<" Possible options : Default (0.5-5 GeV) "<<endl; | |
357 | cout<<" Small energy range (0.5-5 GeV) "<<endl; | |
358 | cout<<" Wide energy range (0.5-100 GeV) "<<endl; | |
e0ed2e49 | 359 | } |
360 | } | |
361 | ||
362 | //____________________________________________________________________________ | |
363 | void AliPHOSPIDv1::SetEllipseParameters(Float_t Cluster_En, TString Eff_Pur, Float_t x, Float_t y,Float_t a, Float_t b,Float_t angle) | |
148b2bba | 364 | { |
365 | ||
366 | // Set all ellipse parameters depending on the cluster energy and | |
367 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
368 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
369 | // EFFICIENCY by PURITY) | |
e0ed2e49 | 370 | |
f0a4c9e9 | 371 | Int_t cluster = GetClusterOption( Cluster_En, kFALSE); |
372 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
e0ed2e49 | 373 | |
f0a4c9e9 | 374 | if((cluster!= -1)||(eff_pur != -1)){ |
375 | (*fParameters)(cluster+6 +fCluster,eff_pur) = x ; | |
376 | (*fParameters)(cluster+9 +fCluster,eff_pur) = y ; | |
377 | (*fParameters)(cluster+12+fCluster,eff_pur) = a ; | |
378 | (*fParameters)(cluster+15+fCluster,eff_pur) = b ; | |
379 | (*fParameters)(cluster+18+fCluster,eff_pur) = angle ; | |
148b2bba | 380 | } |
f0a4c9e9 | 381 | |
148b2bba | 382 | } |
383 | //__________________________________________________________________________ | |
384 | void AliPHOSPIDv1::SetEllipseXCenter(Float_t Cluster_En, TString Eff_Pur, Float_t x) | |
385 | { | |
386 | // Set the ellipse parameter x_center depending on the custer energy and | |
387 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
388 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
389 | // EFFICIENCY by PURITY) | |
148b2bba | 390 | |
f0a4c9e9 | 391 | Int_t cluster = GetClusterOption( Cluster_En, kFALSE); |
392 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
148b2bba | 393 | |
f0a4c9e9 | 394 | if((cluster!= -1)||(eff_pur != -1)) |
395 | (*fParameters)(cluster+6+fCluster,eff_pur) = x ; | |
148b2bba | 396 | |
148b2bba | 397 | } |
398 | //_________________________________________________________________________ | |
399 | void AliPHOSPIDv1::SetEllipseYCenter(Float_t Cluster_En, TString Eff_Pur, Float_t y) | |
400 | { | |
401 | ||
402 | // Set the ellipse parameter y_center depending on the cluster energy and | |
403 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
404 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
405 | // EFFICIENCY by PURITY) | |
406 | ||
f0a4c9e9 | 407 | Int_t cluster = GetClusterOption( Cluster_En, kFALSE); |
408 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
148b2bba | 409 | |
f0a4c9e9 | 410 | if((cluster!= -1)||(eff_pur != -1)) |
411 | (*fParameters)(cluster+9+fCluster,eff_pur) = y ; | |
148b2bba | 412 | |
148b2bba | 413 | } |
414 | //_________________________________________________________________________ | |
415 | void AliPHOSPIDv1::SetEllipseAParameter(Float_t Cluster_En, TString Eff_Pur, Float_t a) | |
416 | { | |
417 | // Set the ellipse parameter a depending on the cluster energy and | |
418 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
419 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
420 | // EFFICIENCY by PURITY) | |
f0a4c9e9 | 421 | |
422 | Int_t cluster = GetClusterOption(Cluster_En,kFALSE); | |
423 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
148b2bba | 424 | |
f0a4c9e9 | 425 | if((cluster!= -1)||(eff_pur != -1)) |
426 | (*fParameters)(cluster+12+fCluster,eff_pur) = a ; | |
148b2bba | 427 | |
148b2bba | 428 | } |
429 | //________________________________________________________________________ | |
430 | void AliPHOSPIDv1::SetEllipseBParameter(Float_t Cluster_En, TString Eff_Pur, Float_t b) | |
431 | { | |
432 | // Set the ellipse parameter b depending on the cluster energy and | |
433 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
434 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
435 | // EFFICIENCY by PURITY) | |
148b2bba | 436 | |
f0a4c9e9 | 437 | Int_t cluster = GetClusterOption(Cluster_En,kFALSE); |
438 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
439 | ||
440 | if((cluster!= -1)||(eff_pur != -1)) | |
441 | (*fParameters)(cluster+15+fCluster,eff_pur) = b ; | |
e0ed2e49 | 442 | |
148b2bba | 443 | } |
444 | //________________________________________________________________________ | |
445 | void AliPHOSPIDv1::SetEllipseAngle(Float_t Cluster_En, TString Eff_Pur, Float_t angle) | |
446 | { | |
447 | ||
448 | // Set the ellipse parameter angle depending on the cluster energy and | |
449 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
450 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
451 | // EFFICIENCY by PURITY) | |
f0a4c9e9 | 452 | |
453 | Int_t cluster = GetClusterOption(Cluster_En,kFALSE) ; | |
454 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
455 | ||
456 | if((cluster!= -1)||(eff_pur != -1)) | |
457 | (*fParameters)(cluster+18+fCluster,eff_pur) = angle ; | |
148b2bba | 458 | |
148b2bba | 459 | } |
460 | //_____________________________________________________________________________ | |
461 | void AliPHOSPIDv1::SetCpvtoEmcDistanceCut(Float_t Cluster_En, TString Eff_Pur, Float_t cut) | |
462 | { | |
463 | ||
464 | // Set the parameter Cpvto EmcDistanceCut depending on the cluster energy and | |
465 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
466 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
467 | // EFFICIENCY by PURITY) | |
468 | ||
f0a4c9e9 | 469 | Int_t cluster = GetClusterOption(Cluster_En,kTRUE); |
470 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
148b2bba | 471 | |
f0a4c9e9 | 472 | if((cluster!= -1)||(eff_pur != -1)) |
148b2bba | 473 | (*fParameters)(cluster,eff_pur) = cut ; |
f0a4c9e9 | 474 | |
475 | } | |
476 | //_____________________________________________________________________________ | |
477 | void AliPHOSPIDv1::SetTimeGate(Float_t Cluster_En, TString Eff_Pur, Float_t gate) | |
478 | { | |
a496c46c | 479 | |
f0a4c9e9 | 480 | // Set the parameter TimeGate depending on the cluster energy and |
481 | // Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
482 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing | |
483 | // EFFICIENCY by PURITY) | |
484 | ||
485 | Int_t cluster = GetClusterOption(Cluster_En,kFALSE); | |
486 | Int_t eff_pur = GetEffPurOption(Eff_Pur); | |
487 | ||
488 | if((cluster!= -1)||(eff_pur != -1)) | |
489 | (*fParameters)(cluster+3+fCluster,eff_pur) = gate ; | |
490 | ||
491 | } | |
a496c46c | 492 | //_____________________________________________________________________________ |
f0a4c9e9 | 493 | void AliPHOSPIDv1::SetParameters(TString OptFileName) |
a496c46c | 494 | { |
495 | // PCA : To do the Principal Components Analysis it is necessary | |
496 | // the Principal file, which is opened here | |
497 | fX = new double[7]; // Data for the PCA | |
f0a4c9e9 | 498 | fP = new double[7]; // Eigenvalues of the PCA |
e0ed2e49 | 499 | |
f0a4c9e9 | 500 | fOptFileName = OptFileName ; |
501 | ||
e0ed2e49 | 502 | SetPrincipalFileOptions(fOptFileName); |
a496c46c | 503 | TFile f( fFileName.Data(), "read" ) ; |
f0a4c9e9 | 504 | //cout<<fFileName.Data()<<endl; |
a496c46c | 505 | fPrincipal = dynamic_cast<TPrincipal*> (f.Get("principal")) ; |
506 | f.Close() ; | |
507 | ||
508 | // Initialization of the Parameters matrix. In the File Parameters.dat | |
f0a4c9e9 | 509 | // are all the parameters. These are introduced in a matrix of 21x3 or 24x3 |
510 | // elements (depending on the principal file 21 rows for 0.5-5 GeV and 24 | |
511 | // rows for 0.5-100). | |
a496c46c | 512 | // All the parameters defined in this file are, in order of row (there are |
f0a4c9e9 | 513 | // 3 rows per parameter): CpvtoEmcDistanceCut(if the principal file is 0.5-100 |
514 | // GeV than 6 rows), TimeGate (and the ellipse parameters), X_center, Y_center, | |
515 | // a, b, angle. Each row of a given parameter depends on the cluster energy range | |
516 | // (wich depends on the chosen principal file) | |
a496c46c | 517 | // Each column designes the parameters for a point in the Efficiency-Purity |
f0a4c9e9 | 518 | // of the photon identification P1(96%,63%), P2(87%,0.88%) and P3(68%,94%) |
519 | // for the principal file from 0.5-5 GeV and for the other one P1(95%,79%), | |
520 | // P2(89%,90%) and P3(72%,96%) | |
521 | ||
522 | Int_t rows = 21; | |
523 | if(fCluster == 0)rows = 21 ; | |
524 | if(fCluster == 3)rows = 24 ; | |
a496c46c | 525 | |
f0a4c9e9 | 526 | fParameters = new TMatrixD(rows,3) ; |
527 | //cout<<fFileNamePar<<endl; | |
a496c46c | 528 | ifstream paramFile(fFileNamePar, ios::in) ; |
529 | ||
530 | Int_t i,j ; | |
531 | ||
f0a4c9e9 | 532 | for(i = 0; i< rows; i++){ |
a496c46c | 533 | for(j = 0; j< 3; j++){ |
534 | paramFile >> (*fParameters)(i,j) ; | |
535 | } | |
536 | } | |
f0a4c9e9 | 537 | paramFile.close(); |
538 | // fParameters->Print(); | |
a496c46c | 539 | } |
148b2bba | 540 | //_____________________________________________________________________________ |
f0a4c9e9 | 541 | Int_t AliPHOSPIDv1::GetClusterOption(const Float_t Cluster_En, const Bool_t rcpv) const |
148b2bba | 542 | { |
543 | ||
f0a4c9e9 | 544 | // Gives the cluster energy range. |
545 | ||
546 | Int_t cluster = -1 ; | |
547 | ||
548 | if((fCluster == 0)){ | |
549 | if((Cluster_En > 0.3)&&(Cluster_En <= 1.0)) cluster = 0 ; | |
550 | if((Cluster_En > 1.0)&&(Cluster_En <= 2.0)) cluster = 1 ; | |
551 | if( Cluster_En > 2.0) cluster = 2 ; | |
552 | } | |
553 | else if(fCluster == 3 &&(rcpv == kFALSE)){ | |
554 | if((Cluster_En > 0.5 )&&(Cluster_En <= 20.0)) cluster = 0 ; | |
555 | if((Cluster_En > 20.0)&&(Cluster_En <= 50.0)) cluster = 1 ; | |
556 | if( Cluster_En > 50.0) cluster = 2 ; | |
557 | } | |
558 | else if(fCluster == 3 &&(rcpv == kTRUE)){ | |
559 | if((Cluster_En > 0.5 )&&(Cluster_En <= 2.0) ) cluster = 0 ; | |
560 | if((Cluster_En > 2.0 )&&(Cluster_En <= 5.0) ) cluster = 1 ; | |
561 | if((Cluster_En > 5.0 )&&(Cluster_En <= 10.0)) cluster = 2 ; | |
562 | if((Cluster_En > 10.0)&&(Cluster_En <= 20.0)) cluster = 3 ; | |
563 | if((Cluster_En > 20.0)&&(Cluster_En <= 30.0)) cluster = 4 ; | |
564 | if( Cluster_En > 30.0) cluster = 5 ; | |
565 | } | |
566 | else { | |
567 | cluster = -1 ; | |
568 | cout<<"Invalid Energy option"<<endl; | |
569 | } | |
570 | ||
571 | return cluster; | |
572 | } | |
573 | //____________________________________________________________________________ | |
574 | Int_t AliPHOSPIDv1::GetEffPurOption(const TString Eff_Pur) const | |
575 | { | |
576 | ||
577 | // Looks for the Purity-Efficiency point (possible options "HIGH EFFICIENCY" | |
148b2bba | 578 | // "MEDIUM EFFICIENCY" "LOW EFFICIENCY" and 3 more options changing |
579 | // EFFICIENCY by PURITY) | |
580 | ||
148b2bba | 581 | Int_t eff_pur = -1 ; |
582 | ||
f0a4c9e9 | 583 | if(Eff_Pur.Contains("HIGH EFFICIENCY") ||Eff_Pur.Contains("LOW PURITY") ) |
584 | eff_pur = 0 ; | |
585 | else if(Eff_Pur.Contains("MEDIUM EFFICIENCY") ||Eff_Pur.Contains("MEDIUM PURITY") ) | |
586 | eff_pur = 1 ; | |
587 | else if(Eff_Pur.Contains("LOW EFFICIENCY")||Eff_Pur.Contains("HIGH PURITY") ) | |
588 | eff_pur = 2 ; | |
148b2bba | 589 | else{ |
f0a4c9e9 | 590 | eff_pur = -1; |
591 | cout<<"Invalid Efficiency-Purity option"<<endl; | |
592 | cout<<"Possible options: HIGH EFFICIENCY = LOW PURITY"<<endl; | |
593 | cout<<" MEDIUM EFFICIENCY = MEDIUM PURITY"<<endl; | |
594 | cout<<" LOW EFFICIENCY = HIGH PURITY"<<endl; | |
148b2bba | 595 | } |
f0a4c9e9 | 596 | |
597 | return eff_pur; | |
598 | } | |
148b2bba | 599 | //____________________________________________________________________________ |
600 | ||
7acf6008 | 601 | void AliPHOSPIDv1::Exec(Option_t * option) |
6ad0bfa0 | 602 | { |
f035f6ce | 603 | //Steering method |
9688c1dd | 604 | |
bf8f1fbd | 605 | if( strcmp(GetName(), "")== 0 ) |
7acf6008 | 606 | Init() ; |
bf8f1fbd | 607 | |
608 | if(strstr(option,"tim")) | |
7acf6008 | 609 | gBenchmark->Start("PHOSPID"); |
bf8f1fbd | 610 | |
611 | if(strstr(option,"print")) { | |
7b7c1533 | 612 | Print("") ; |
613 | return ; | |
bf8f1fbd | 614 | } |
9688c1dd | 615 | |
148b2bba | 616 | //cout << gDirectory->GetName() << endl ; |
617 | ||
bf8f1fbd | 618 | gAlice->GetEvent(0) ; |
148b2bba | 619 | |
7b7c1533 | 620 | //check, if the branch with name of this" already exits? |
8d0f3f77 | 621 | if (gAlice->TreeR()) { |
622 | TObjArray * lob = (TObjArray*)gAlice->TreeR()->GetListOfBranches() ; | |
623 | TIter next(lob) ; | |
624 | TBranch * branch = 0 ; | |
625 | Bool_t phospidfound = kFALSE, pidfound = kFALSE ; | |
626 | ||
627 | TString taskName(GetName()) ; | |
628 | taskName.Remove(taskName.Index(Version())-1) ; | |
629 | ||
630 | while ( (branch = (TBranch*)next()) && (!phospidfound || !pidfound) ) { | |
631 | if ( (strcmp(branch->GetName(), "PHOSPID")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) | |
632 | phospidfound = kTRUE ; | |
633 | ||
634 | else if ( (strcmp(branch->GetName(), "AliPHOSPID")==0) && (strcmp(branch->GetTitle(), taskName.Data())==0) ) | |
635 | pidfound = kTRUE ; | |
636 | } | |
7b7c1533 | 637 | |
8d0f3f77 | 638 | if ( phospidfound || pidfound ) { |
639 | cerr << "WARNING: AliPHOSPIDv1::Exec -> RecParticles and/or PIDtMaker branch with name " | |
640 | << taskName.Data() << " already exits" << endl ; | |
641 | return ; | |
642 | } | |
7b7c1533 | 643 | } |
9688c1dd | 644 | |
7b7c1533 | 645 | Int_t nevents = (Int_t) gAlice->TreeE()->GetEntries() ; |
646 | Int_t ievent ; | |
148b2bba | 647 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
7b7c1533 | 648 | for(ievent = 0; ievent < nevents; ievent++){ |
a496c46c | 649 | gime->Event(ievent,"R") ; |
148b2bba | 650 | |
7acf6008 | 651 | MakeRecParticles() ; |
9688c1dd | 652 | |
7b7c1533 | 653 | WriteRecParticles(ievent); |
9688c1dd | 654 | |
7acf6008 | 655 | if(strstr(option,"deb")) |
656 | PrintRecParticles(option) ; | |
94de8339 | 657 | |
658 | //increment the total number of rec particles per run | |
a496c46c | 659 | fRecParticlesInRun += gime->RecParticles(BranchName())->GetEntriesFast() ; |
94de8339 | 660 | |
7acf6008 | 661 | } |
9688c1dd | 662 | |
7acf6008 | 663 | if(strstr(option,"tim")){ |
664 | gBenchmark->Stop("PHOSPID"); | |
665 | cout << "AliPHOSPID:" << endl ; | |
666 | cout << " took " << gBenchmark->GetCpuTime("PHOSPID") << " seconds for PID " | |
7b7c1533 | 667 | << gBenchmark->GetCpuTime("PHOSPID")/nevents << " seconds per event " << endl ; |
7acf6008 | 668 | cout << endl ; |
669 | } | |
9688c1dd | 670 | |
7b7c1533 | 671 | } |
672 | ||
7acf6008 | 673 | //____________________________________________________________________________ |
674 | void AliPHOSPIDv1::MakeRecParticles(){ | |
675 | ||
b2a60966 | 676 | // Makes a RecParticle out of a TrackSegment |
148b2bba | 677 | |
7b7c1533 | 678 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
148b2bba | 679 | TObjArray * emcRecPoints = gime->EmcRecPoints(fFrom) ; |
680 | TObjArray * cpvRecPoints = gime->CpvRecPoints(fFrom) ; | |
681 | TClonesArray * trackSegments = gime->TrackSegments(fFrom) ; | |
682 | if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) { | |
683 | cerr << "ERROR: AliPHOSPIDv1::MakeRecParticles -> RecPoints or TrackSegments with name " | |
684 | << fFrom << " not found ! " << endl ; | |
685 | abort() ; | |
686 | } | |
a496c46c | 687 | TClonesArray * recParticles = gime->RecParticles(BranchName()) ; |
01a599c9 | 688 | recParticles->Clear(); |
148b2bba | 689 | |
690 | ||
7b7c1533 | 691 | TIter next(trackSegments) ; |
7acf6008 | 692 | AliPHOSTrackSegment * ts ; |
6ad0bfa0 | 693 | Int_t index = 0 ; |
09fc14a0 | 694 | AliPHOSRecParticle * rp ; |
7acf6008 | 695 | |
7acf6008 | 696 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { |
fad3e5b9 | 697 | |
7b7c1533 | 698 | new( (*recParticles)[index] ) AliPHOSRecParticle() ; |
699 | rp = (AliPHOSRecParticle *)recParticles->At(index) ; | |
f0a4c9e9 | 700 | rp->SetTrackSegment(index) ; |
9688c1dd | 701 | rp->SetIndexInList(index) ; |
148b2bba | 702 | |
7acf6008 | 703 | AliPHOSEmcRecPoint * emc = 0 ; |
704 | if(ts->GetEmcIndex()>=0) | |
7b7c1533 | 705 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; |
fad3e5b9 | 706 | |
7acf6008 | 707 | AliPHOSRecPoint * cpv = 0 ; |
708 | if(ts->GetCpvIndex()>=0) | |
7b7c1533 | 709 | cpv = (AliPHOSRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; |
fad3e5b9 | 710 | |
7acf6008 | 711 | //set momentum and energy first |
712 | Float_t e = emc->GetEnergy() ; | |
9688c1dd | 713 | TVector3 dir = GetMomentumDirection(emc,cpv) ; |
7acf6008 | 714 | dir.SetMag(e) ; |
715 | ||
716 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),e) ; | |
717 | rp->SetCalcMass(0); | |
fad3e5b9 | 718 | |
148b2bba | 719 | // Now set type (reconstructed) of the particle |
720 | ||
721 | // Choose the cluster energy range | |
f0a4c9e9 | 722 | // Ellipse and rcpv cut in function of the cluster energy |
723 | Int_t clusterrcpv = GetClusterOption(e,kTRUE) ; | |
724 | Int_t cluster = GetClusterOption(e,kFALSE) ; | |
725 | if((cluster== -1)||(clusterrcpv == -1)) continue ; | |
148b2bba | 726 | |
727 | // Loop of Efficiency-Purity (the 3 points of purity or efficiency are taken | |
728 | // into account to set the particle identification) | |
729 | for(Int_t eff_pur = 0; eff_pur < 3 ; eff_pur++){ | |
f0a4c9e9 | 730 | |
731 | // Looking at the CPV detector. If RCPV greater than CpvEmcDistance, 1st, | |
732 | // 2nd or 3rd bit (depending on the efficiency-purity point )is set to 1 . | |
733 | if(GetDistance(emc, cpv, "R") > (*fParameters)(clusterrcpv,eff_pur) ) | |
148b2bba | 734 | rp->SetPIDBit(eff_pur) ; |
f0a4c9e9 | 735 | |
736 | // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th | |
737 | // bit (depending on the efficiency-purity point )is set to 1 | |
738 | if(emc->GetTime()< (*fParameters)(cluster+3+fCluster,eff_pur)) | |
148b2bba | 739 | rp->SetPIDBit(eff_pur+3) ; |
740 | ||
f0a4c9e9 | 741 | // Looking PCA. Define and calculate the data (X), introduce in the function |
742 | // X2P that gives the components (P). | |
743 | Float_t Spher = 0. ; | |
744 | Float_t Emaxdtotal = 0. ; | |
745 | Float_t lambda[2] ; | |
746 | ||
747 | emc->GetElipsAxis(lambda) ; | |
748 | if((lambda[0]+lambda[1])!=0) Spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]); | |
749 | ||
750 | Emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy(); | |
751 | ||
752 | fX[0] = lambda[0] ; | |
753 | fX[1] = lambda[1] ; | |
754 | fX[2] = emc->GetDispersion() ; | |
755 | fX[3] = Spher ; | |
756 | fX[4] = emc->GetMultiplicity() ; | |
757 | fX[5] = Emaxdtotal ; | |
758 | fX[6] = emc->GetCoreEnergy() ; | |
759 | ||
760 | fPrincipal->X2P(fX,fP); | |
761 | ||
762 | //If we are inside the ellipse, 7th, 8th or 9th | |
763 | // bit (depending on the efficiency-purity point )is set to 1 | |
764 | if(GetPrincipalSign(fP,cluster+fCluster,eff_pur) == 1) | |
765 | rp->SetPIDBit(eff_pur+6) ; | |
766 | ||
767 | } | |
148b2bba | 768 | |
e0ed2e49 | 769 | rp->Name(); //If photon sets the particle pdg name to gamma |
e747b8da | 770 | rp->SetProductionVertex(0,0,0,0); |
771 | rp->SetFirstMother(-1); | |
772 | rp->SetLastMother(-1); | |
773 | rp->SetFirstDaughter(-1); | |
774 | rp->SetLastDaughter(-1); | |
775 | rp->SetPolarisation(0,0,0); | |
6ad0bfa0 | 776 | index++ ; |
777 | } | |
7acf6008 | 778 | |
6ad0bfa0 | 779 | } |
780 | ||
09fc14a0 | 781 | //____________________________________________________________________________ |
a496c46c | 782 | void AliPHOSPIDv1:: Print() |
09fc14a0 | 783 | { |
b2a60966 | 784 | // Print the parameters used for the particle type identification |
f035f6ce | 785 | cout << "=============== AliPHOSPID1 ================" << endl ; |
786 | cout << "Making PID "<< endl ; | |
787 | cout << " Headers file: " << fHeaderFileName.Data() << endl ; | |
788 | cout << " RecPoints branch title: " << fRecPointsTitle.Data() << endl ; | |
7b7c1533 | 789 | cout << " TrackSegments Branch title: " << fTrackSegmentsTitle.Data() << endl ; |
790 | cout << " RecParticles Branch title " << fRecParticlesTitle.Data() << endl; | |
f0a4c9e9 | 791 | cout << " Pricipal analysis file " << fFileName.Data() << endl; |
e0ed2e49 | 792 | cout << " Matrix of Parameters: "<<endl; |
f0a4c9e9 | 793 | cout << " Name of parameters file "<<fFileNamePar.Data() << endl ; |
e0ed2e49 | 794 | cout << " 3 Columns [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]"<<endl; |
f0a4c9e9 | 795 | if(fCluster == 0) |
796 | cout << " 21 Rows, each 3 [ RCPV, TOF, X_Center, Y_Center, A, B, Angle ]"<<endl; | |
797 | if(fCluster == 3) | |
798 | cout << " 24 Rows, [ 6 RCPV, 3 TOF, 3 X_Center, 3 Y_Center, 3 A, 3 B, 3 Angle ]"<<endl; | |
799 | ||
800 | //cout<<fOptFileName<<endl; | |
801 | SetParameters(fOptFileName) ; | |
a496c46c | 802 | fParameters->Print() ; |
f035f6ce | 803 | cout << "============================================" << endl ; |
09fc14a0 | 804 | } |
805 | ||
7acf6008 | 806 | //____________________________________________________________________________ |
7b7c1533 | 807 | void AliPHOSPIDv1::WriteRecParticles(Int_t event) |
09fc14a0 | 808 | { |
7b7c1533 | 809 | |
810 | AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ; | |
a496c46c | 811 | |
812 | TClonesArray * recParticles = gime->RecParticles(BranchName()) ; | |
bf8f1fbd | 813 | recParticles->Expand(recParticles->GetEntriesFast() ) ; |
8d0f3f77 | 814 | TTree * treeR = gAlice->TreeR() ; |
9688c1dd | 815 | |
8d0f3f77 | 816 | if (!treeR) |
817 | gAlice->MakeTree("R", fSplitFile); | |
818 | treeR = gAlice->TreeR() ; | |
7acf6008 | 819 | |
820 | //First rp | |
821 | Int_t bufferSize = 32000 ; | |
8d0f3f77 | 822 | TBranch * rpBranch = treeR->Branch("PHOSRP",&recParticles,bufferSize); |
bf8f1fbd | 823 | rpBranch->SetTitle(fRecParticlesTitle); |
8d0f3f77 | 824 | |
9688c1dd | 825 | |
7acf6008 | 826 | //second, pid |
827 | Int_t splitlevel = 0 ; | |
828 | AliPHOSPIDv1 * pid = this ; | |
8d0f3f77 | 829 | TBranch * pidBranch = treeR->Branch("AliPHOSPID","AliPHOSPIDv1",&pid,bufferSize,splitlevel); |
9688c1dd | 830 | pidBranch->SetTitle(fRecParticlesTitle.Data()); |
7acf6008 | 831 | |
761e34c0 | 832 | rpBranch->Fill() ; |
a496c46c | 833 | pidBranch->Fill() ; |
9688c1dd | 834 | |
8d0f3f77 | 835 | gAlice->TreeR()->AutoSave() ;// Write(0,kOverwrite) ; |
7b7c1533 | 836 | |
7acf6008 | 837 | } |
69183710 | 838 | |
7acf6008 | 839 | //____________________________________________________________________________ |
9688c1dd | 840 | TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSRecPoint * cpv)const |
7acf6008 | 841 | { |
842 | // Calculates the momentum direction: | |
843 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
9688c1dd | 844 | // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints |
845 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
7acf6008 | 846 | // in case 1. |
847 | ||
848 | TVector3 dir(0,0,0) ; | |
849 | ||
850 | TVector3 emcglobalpos ; | |
851 | TMatrix dummy ; | |
852 | ||
853 | emc->GetGlobalPosition(emcglobalpos, dummy) ; | |
854 | ||
148b2bba | 855 | |
7acf6008 | 856 | dir = emcglobalpos ; |
857 | dir.SetZ( -dir.Z() ) ; // why ? | |
858 | dir.SetMag(1.) ; | |
859 | ||
860 | //account correction to the position of IP | |
861 | Float_t xo,yo,zo ; //Coordinates of the origin | |
862 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; | |
863 | TVector3 origin(xo,yo,zo); | |
864 | dir = dir - origin ; | |
865 | ||
866 | return dir ; | |
867 | } | |
868 | //____________________________________________________________________________ | |
a4e98857 | 869 | void AliPHOSPIDv1::PrintRecParticles(Option_t * option) |
870 | { | |
dd5c4038 | 871 | // Print table of reconstructed particles |
872 | ||
7b7c1533 | 873 | AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ; |
bf8f1fbd | 874 | |
a496c46c | 875 | TClonesArray * recParticles = gime->RecParticles(BranchName()) ; |
9688c1dd | 876 | |
01a599c9 | 877 | cout << "AliPHOSPIDv1: event "<<gAlice->GetEvNumber() << endl ; |
7b7c1533 | 878 | cout << " found " << recParticles->GetEntriesFast() << " RecParticles " << endl ; |
9688c1dd | 879 | |
7acf6008 | 880 | if(strstr(option,"all")) { // printing found TS |
881 | ||
e0ed2e49 | 882 | cout << " PARTICLE " |
7acf6008 | 883 | << " Index " << endl ; |
7acf6008 | 884 | |
885 | Int_t index ; | |
7b7c1533 | 886 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { |
148b2bba | 887 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; |
e0ed2e49 | 888 | |
889 | cout << setw(10) << rp->Name() << " " | |
890 | << setw(5) << rp->GetIndexInList() << " " <<endl; | |
891 | cout << "Type "<< rp->GetType() << endl; | |
7acf6008 | 892 | } |
893 | cout << "-------------------------------------------" << endl ; | |
894 | } | |
895 | ||
69183710 | 896 | } |
897 | ||
7acf6008 | 898 | |
899 |