]>
Commit | Line | Data |
---|---|---|
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: | |
bc0c084c | 26 | // -Bit 0 to 2: bit set if RCPV > CpvEmcDistance (each bit corresponds |
148b2bba | 27 | // to a different efficiency-purity point of the photon identification) |
bc0c084c | 28 | // -Bit 3 to 5: bit set if TOF < TimeGate (each bit corresponds |
148b2bba | 29 | // to a different efficiency-purity point of the photon identification) |
30 | // -Bit 6 to 9: bit set if Principal Components are | |
50739f15 | 31 | // inside an ellipse defined by the parameters a, b, c, x0 and y0. |
148b2bba | 32 | // (each bit corresponds to a different efficiency-purity point of the |
50739f15 | 33 | // photon identification) |
34 | // The PCA (Principal components analysis) needs a file that contains | |
35 | // a previous analysis of the correlations between the particles. This | |
bc0c084c | 36 | // file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis done for |
50739f15 | 37 | // energies between 0.5 and 100 GeV. |
9fa5f1d0 | 38 | // A calibrated energy is calculated. The energy of the reconstructed |
50739f15 | 39 | // cluster is corrected with the formula A + B * E + C * E^2, whose |
bc0c084c | 40 | // parameters where obtained through the study of the reconstructed |
50739f15 | 41 | // energy distribution of monoenergetic photons. |
a4e98857 | 42 | // |
bc0c084c | 43 | // All the parameters (RCPV(2 rows-3 columns),TOF(1r-3c),PCA(5r-4c) |
50739f15 | 44 | // and calibration(1r-3c))are stored in a file called |
45 | // $ALICE_ROOT/PHOS/Parameters.dat. Each time that AliPHOSPIDv1 is | |
bc0c084c | 46 | // initialized, this parameters are copied to a Matrix (9,4), a |
50739f15 | 47 | // TMatrixD object. |
7acf6008 | 48 | // |
a4e98857 | 49 | // use case: |
50739f15 | 50 | // root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root") |
a4e98857 | 51 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50739f15 | 52 | // // reading headers from file galice1.root and create RecParticles |
53 | // TrackSegments and RecPoints are used | |
54 | // // set file name for the branch RecParticles | |
f0a4c9e9 | 55 | // root [1] p->ExecuteTask("deb all time") |
50739f15 | 56 | // // available options |
57 | // // "deb" - prints # of reconstructed particles | |
58 | // // "deb all" - prints # and list of RecParticles | |
59 | // // "time" - prints benchmarking results | |
7acf6008 | 60 | // |
50739f15 | 61 | // root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1",kTRUE) |
148b2bba | 62 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50739f15 | 63 | // //Split mode. |
f0a4c9e9 | 64 | // root [3] p2->ExecuteTask() |
65 | // | |
50739f15 | 66 | |
f0a4c9e9 | 67 | |
7acf6008 | 68 | //*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & |
148b2bba | 69 | // Gustavo Conesa April 2002 |
50739f15 | 70 | // PCA redesigned by Gustavo Conesa October 2002: |
71 | // The way of using the PCA has changed. Instead of 2 | |
72 | // files with the PCA, each one with different energy ranges | |
73 | // of application, we use the wide one (0.5-100 GeV), and instead | |
bc0c084c | 74 | // of fixing 3 ellipses for different ranges of energy, it has been |
50739f15 | 75 | // studied the dependency of the ellipses parameters with the |
76 | // energy, and they are implemented in the code as a funtion | |
77 | // of the energy. | |
78 | // | |
79 | // | |
80 | // | |
6ad0bfa0 | 81 | // --- ROOT system --- |
7acf6008 | 82 | #include "TROOT.h" |
83 | #include "TTree.h" | |
84 | #include "TFile.h" | |
e3817e5f | 85 | #include "TF2.h" |
86 | #include "TFormula.h" | |
87 | #include "TCanvas.h" | |
88 | #include "TFolder.h" | |
7acf6008 | 89 | #include "TSystem.h" |
90 | #include "TBenchmark.h" | |
148b2bba | 91 | #include "TMatrixD.h" |
92 | #include "TPrincipal.h" | |
e3817e5f | 93 | #include "TSystem.h" |
148b2bba | 94 | |
6ad0bfa0 | 95 | // --- Standard library --- |
96 | ||
75a6835b | 97 | |
6ad0bfa0 | 98 | // --- AliRoot header files --- |
99 | ||
7acf6008 | 100 | #include "AliGenerator.h" |
e3817e5f | 101 | #include "AliPHOS.h" |
26d4b141 | 102 | #include "AliPHOSPIDv1.h" |
e3817e5f | 103 | #include "AliPHOSClusterizerv1.h" |
d956e9b7 | 104 | #include "AliPHOSEmcRecPoint.h" |
6ad0bfa0 | 105 | #include "AliPHOSTrackSegment.h" |
e3817e5f | 106 | #include "AliPHOSTrackSegmentMakerv1.h" |
6ad0bfa0 | 107 | #include "AliPHOSRecParticle.h" |
7b7c1533 | 108 | #include "AliPHOSGeometry.h" |
109 | #include "AliPHOSGetter.h" | |
6ad0bfa0 | 110 | |
26d4b141 | 111 | ClassImp( AliPHOSPIDv1) |
6ad0bfa0 | 112 | |
1cb7c1ee | 113 | //____________________________________________________________________________ |
114 | AliPHOSPIDv1::AliPHOSPIDv1():AliPHOSPID() | |
115 | { | |
a4e98857 | 116 | // default ctor |
148b2bba | 117 | |
8d0f3f77 | 118 | InitParameters() ; |
92f521a9 | 119 | fDefaultInit = kTRUE ; |
7acf6008 | 120 | } |
121 | ||
581354c5 | 122 | //____________________________________________________________________________ |
88cb7938 | 123 | AliPHOSPIDv1::AliPHOSPIDv1(const AliPHOSPIDv1 & pid ):AliPHOSPID(pid) |
581354c5 | 124 | { |
386aef34 | 125 | // ctor |
581354c5 | 126 | InitParameters() ; |
581354c5 | 127 | Init() ; |
581354c5 | 128 | |
129 | } | |
130 | ||
7acf6008 | 131 | //____________________________________________________________________________ |
88cb7938 | 132 | AliPHOSPIDv1::AliPHOSPIDv1(const TString alirunFileName, const TString eventFolderName):AliPHOSPID(alirunFileName, eventFolderName) |
7acf6008 | 133 | { |
a4e98857 | 134 | //ctor with the indication on where to look for the track segments |
7b7c1533 | 135 | |
8d0f3f77 | 136 | InitParameters() ; |
2bd5457f | 137 | Init() ; |
92f521a9 | 138 | fDefaultInit = kFALSE ; |
7acf6008 | 139 | } |
7b7c1533 | 140 | |
7acf6008 | 141 | //____________________________________________________________________________ |
142 | AliPHOSPIDv1::~AliPHOSPIDv1() | |
143 | { | |
79bb1b62 | 144 | // dtor |
9fa5f1d0 | 145 | |
e3817e5f | 146 | delete [] fX ; // Principal input |
147 | delete [] fPPhoton ; // Photon Principal components | |
148 | delete [] fPPi0 ; // Pi0 Principal components | |
7acf6008 | 149 | } |
a496c46c | 150 | //____________________________________________________________________________ |
151 | const TString AliPHOSPIDv1::BranchName() const | |
152 | { | |
88cb7938 | 153 | |
154 | return GetName() ; | |
a496c46c | 155 | } |
156 | ||
148b2bba | 157 | //____________________________________________________________________________ |
158 | void AliPHOSPIDv1::Init() | |
159 | { | |
160 | // Make all memory allocations that are not possible in default constructor | |
161 | // Add the PID task to the list of PHOS tasks | |
a496c46c | 162 | |
88cb7938 | 163 | AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ; |
164 | ||
165 | if ( !gime->PID() ) | |
166 | gime->PostPID(this) ; | |
148b2bba | 167 | } |
8d0f3f77 | 168 | |
169 | //____________________________________________________________________________ | |
170 | void AliPHOSPIDv1::InitParameters() | |
171 | { | |
e3817e5f | 172 | // Initialize PID parameters |
8d0f3f77 | 173 | fRecParticlesInRun = 0 ; |
8d0f3f77 | 174 | fNEvent = 0 ; |
8d0f3f77 | 175 | fRecParticlesInRun = 0 ; |
9fa5f1d0 | 176 | SetParameters() ; // fill the parameters matrix from parameters file |
eabde521 | 177 | SetEventRange(0,-1) ; |
8d0f3f77 | 178 | } |
179 | ||
88cb7938 | 180 | //________________________________________________________________________ |
eabde521 | 181 | void AliPHOSPIDv1::Exec(Option_t *option) |
88cb7938 | 182 | { |
eabde521 | 183 | // Steering method to perform particle reconstruction and identification |
184 | // for the event range from fFirstEvent to fLastEvent. | |
185 | // This range is optionally set by SetEventRange(). | |
186 | // if fLastEvent=-1 (by default), then process events until the end. | |
61d3d6aa | 187 | |
88cb7938 | 188 | if(strstr(option,"tim")) |
189 | gBenchmark->Start("PHOSPID"); | |
190 | ||
191 | if(strstr(option,"print")) { | |
192 | Print() ; | |
193 | return ; | |
194 | } | |
195 | ||
196 | ||
fb43ada4 | 197 | AliPHOSGetter * gime = AliPHOSGetter::Instance(GetTitle()) ; |
88cb7938 | 198 | |
71cee46d | 199 | if (fLastEvent == -1) |
200 | fLastEvent = gime->MaxEvent() - 1 ; | |
201 | else | |
202 | fLastEvent = TMath::Min(fLastEvent,gime->MaxEvent()); | |
eabde521 | 203 | Int_t nEvents = fLastEvent - fFirstEvent + 1; |
88cb7938 | 204 | |
71cee46d | 205 | Int_t ievent ; |
206 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
88cb7938 | 207 | gime->Event(ievent,"TR") ; |
208 | if(gime->TrackSegments() && //Skip events, where no track segments made | |
209 | gime->TrackSegments()->GetEntriesFast()) { | |
210 | MakeRecParticles() ; | |
90cceaf6 | 211 | WriteRecParticles(); |
88cb7938 | 212 | if(strstr(option,"deb")) |
213 | PrintRecParticles(option) ; | |
214 | //increment the total number of rec particles per run | |
215 | fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; | |
216 | } | |
217 | } | |
ff417097 | 218 | if(strstr(option,"deb")) |
219 | PrintRecParticles(option); | |
88cb7938 | 220 | if(strstr(option,"tim")){ |
221 | gBenchmark->Stop("PHOSPID"); | |
222 | Info("Exec", "took %f seconds for PID %f seconds per event", | |
223 | gBenchmark->GetCpuTime("PHOSPID"), | |
eabde521 | 224 | gBenchmark->GetCpuTime("PHOSPID")/nEvents) ; |
88cb7938 | 225 | } |
88cb7938 | 226 | Unload(); |
227 | } | |
228 | ||
69183710 | 229 | //____________________________________________________________________________ |
e3817e5f | 230 | const TString AliPHOSPIDv1::GetFileNamePrincipal(TString particle) const |
148b2bba | 231 | { |
e3817e5f | 232 | //Get file name that contains the PCA for a particle ("photon or pi0") |
233 | particle.ToLower(); | |
234 | TString name; | |
235 | if (particle=="photon") name = fFileNamePrincipalPhoton ; | |
236 | else if (particle=="pi0" ) name = fFileNamePrincipalPi0 ; | |
237 | else Error("GetFileNamePrincipal","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data()); | |
238 | return name; | |
239 | } | |
bc0c084c | 240 | |
e3817e5f | 241 | //____________________________________________________________________________ |
fc7e2f43 | 242 | Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const |
e3817e5f | 243 | { |
244 | // Get the i-th parameter "Calibration" | |
245 | Float_t param = 0.; | |
246 | if (i>2 || i<0) | |
247 | Error("GetParameterCalibration","Invalid parameter number: %d",i); | |
9fa5f1d0 | 248 | else |
e3817e5f | 249 | param = (*fParameters)(0,i); |
250 | return param; | |
251 | } | |
bc0c084c | 252 | |
88cb7938 | 253 | //____________________________________________________________________________ |
fc7e2f43 | 254 | Float_t AliPHOSPIDv1::GetCalibratedEnergy(Float_t e) const |
88cb7938 | 255 | { |
256 | // It calibrates Energy depending on the recpoint energy. | |
257 | // The energy of the reconstructed cluster is corrected with | |
258 | // the formula A + B* E + C* E^2, whose parameters where obtained | |
259 | // through the study of the reconstructed energy distribution of | |
260 | // monoenergetic photons. | |
261 | ||
262 | Float_t p[]={0.,0.,0.}; | |
263 | for (Int_t i=0; i<3; i++) p[i] = GetParameterCalibration(i); | |
264 | Float_t enerec = p[0] + p[1]*e + p[2]*e*e; | |
265 | return enerec ; | |
266 | ||
267 | } | |
268 | ||
e3817e5f | 269 | //____________________________________________________________________________ |
fc7e2f43 | 270 | Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const |
e3817e5f | 271 | { |
272 | // Get the i-th parameter "CPV-EMC distance" for the specified axis | |
273 | Float_t param = 0.; | |
274 | if(i>2 || i<0) | |
275 | Error("GetParameterCpv2Emc","Invalid parameter number: %d",i); | |
276 | else { | |
277 | axis.ToLower(); | |
278 | if (axis == "x") param = (*fParameters)(1,i); | |
279 | else if (axis == "z") param = (*fParameters)(2,i); | |
280 | else Error("GetParameterCpv2Emc","Invalid axis name: %s",axis.Data()); | |
281 | } | |
282 | return param; | |
283 | } | |
284 | ||
285 | //____________________________________________________________________________ | |
fc7e2f43 | 286 | Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const |
e3817e5f | 287 | { |
88cb7938 | 288 | // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and |
289 | // Purity-Efficiency point | |
290 | ||
291 | axis.ToLower(); | |
292 | Float_t p[]={0.,0.,0.}; | |
293 | for (Int_t i=0; i<3; i++) p[i] = GetParameterCpv2Emc(i,axis); | |
294 | Float_t sig = p[0] + TMath::Exp(p[1] - p[2]*e); | |
295 | return sig; | |
e3817e5f | 296 | } |
297 | ||
88cb7938 | 298 | //____________________________________________________________________________ |
fc7e2f43 | 299 | Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const |
88cb7938 | 300 | { |
301 | // Calculates the parameter param of the ellipse | |
e3817e5f | 302 | |
303 | particle.ToLower(); | |
304 | param. ToLower(); | |
88cb7938 | 305 | Float_t p[4]={0.,0.,0.,0.}; |
306 | Float_t value = 0.0; | |
307 | for (Int_t i=0; i<4; i++) p[i] = GetParameterToCalculateEllipse(particle,param,i); | |
308 | if (particle == "photon") { | |
309 | if (param.Contains("a")) e = TMath::Min((Double_t)e,70.); | |
310 | else if (param.Contains("b")) e = TMath::Min((Double_t)e,70.); | |
311 | else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1); | |
312 | } | |
e3817e5f | 313 | |
88cb7938 | 314 | value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3]; |
315 | return value; | |
e3817e5f | 316 | } |
317 | ||
318 | //_____________________________________________________________________________ | |
fc7e2f43 | 319 | Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (Int_t i) const |
e3817e5f | 320 | { |
321 | // Get the parameter "i" to calculate the boundary on the moment M2x | |
322 | // for photons at high p_T | |
323 | Float_t param = 0; | |
324 | if (i>3 || i<0) | |
325 | Error("GetParameterPhotonBoundary","Wrong parameter number: %d\n",i); | |
326 | else | |
327 | param = (*fParameters)(14,i) ; | |
328 | return param; | |
148b2bba | 329 | } |
e3817e5f | 330 | |
148b2bba | 331 | //____________________________________________________________________________ |
fc7e2f43 | 332 | Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const |
e3817e5f | 333 | { |
334 | // Get the parameter "i" to calculate the boundary on the moment M2x | |
335 | // for pi0 at high p_T | |
336 | Float_t param = 0; | |
337 | if (i>2 || i<0) | |
338 | Error("GetParameterPi0Boundary","Wrong parameter number: %d\n",i); | |
339 | else | |
340 | param = (*fParameters)(15,i) ; | |
341 | return param; | |
342 | } | |
148b2bba | 343 | |
e3817e5f | 344 | //____________________________________________________________________________ |
fc7e2f43 | 345 | Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const |
e3817e5f | 346 | { |
88cb7938 | 347 | // Get TimeGate parameter depending on Purity-Efficiency i: |
348 | // i=0 - Low purity, i=1 - Medium purity, i=2 - High purity | |
349 | Float_t param = 0.; | |
e3817e5f | 350 | if(i>2 || i<0) |
88cb7938 | 351 | Error("GetParameterTimeGate","Invalid Efficiency-Purity choice %d",i); |
e3817e5f | 352 | else |
88cb7938 | 353 | param = (*fParameters)(3,i) ; |
354 | return param; | |
e3817e5f | 355 | } |
356 | ||
148b2bba | 357 | //_____________________________________________________________________________ |
fc7e2f43 | 358 | Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const |
88cb7938 | 359 | { |
360 | // Get the parameter "i" that is needed to calculate the ellipse | |
361 | // parameter "param" for the particle "particle" ("photon" or "pi0") | |
362 | ||
e3817e5f | 363 | particle.ToLower(); |
364 | param. ToLower(); | |
88cb7938 | 365 | Int_t offset = -1; |
e3817e5f | 366 | if (particle == "photon") offset=0; |
367 | else if (particle == "pi0") offset=5; | |
368 | else | |
88cb7938 | 369 | Error("GetParameterToCalculateEllipse","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data()); |
370 | ||
371 | Int_t p= -1; | |
372 | Float_t par = 0; | |
e3817e5f | 373 | |
374 | if (param.Contains("a")) p=4+offset; | |
375 | else if(param.Contains("b")) p=5+offset; | |
376 | else if(param.Contains("c")) p=6+offset; | |
377 | else if(param.Contains("x0"))p=7+offset; | |
378 | else if(param.Contains("y0"))p=8+offset; | |
12022e83 | 379 | |
88cb7938 | 380 | if (i>4 || i<0) |
381 | Error("GetParameterToCalculateEllipse", "No parameter with index", i) ; | |
382 | else if (p==-1) | |
383 | Error("GetParameterToCalculateEllipse", "No parameter with name %s", param.Data() ) ; | |
12022e83 | 384 | else |
88cb7938 | 385 | par = (*fParameters)(p,i) ; |
386 | ||
387 | return par; | |
12022e83 | 388 | } |
389 | ||
12022e83 | 390 | |
391 | //____________________________________________________________________________ | |
8d4608b5 | 392 | Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Option_t * axis)const |
69183710 | 393 | { |
394 | // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
148b2bba | 395 | |
88cb7938 | 396 | const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ; |
69183710 | 397 | TVector3 vecEmc ; |
7acf6008 | 398 | TVector3 vecCpv ; |
148b2bba | 399 | if(cpv){ |
400 | emc->GetLocalPosition(vecEmc) ; | |
401 | cpv->GetLocalPosition(vecCpv) ; | |
2bb500e5 | 402 | |
148b2bba | 403 | if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ |
404 | // Correct to difference in CPV and EMC position due to different distance to center. | |
405 | // we assume, that particle moves from center | |
406 | Float_t dCPV = geom->GetIPtoOuterCoverDistance(); | |
407 | Float_t dEMC = geom->GetIPtoCrystalSurface() ; | |
408 | dEMC = dEMC / dCPV ; | |
409 | vecCpv = dEMC * vecCpv - vecEmc ; | |
e3817e5f | 410 | if (axis == "X") return vecCpv.X(); |
411 | if (axis == "Y") return vecCpv.Y(); | |
412 | if (axis == "Z") return vecCpv.Z(); | |
413 | if (axis == "R") return vecCpv.Mag(); | |
414 | } | |
148b2bba | 415 | return 100000000 ; |
416 | } | |
7acf6008 | 417 | return 100000000 ; |
69183710 | 418 | } |
bc0c084c | 419 | //____________________________________________________________________________ |
8d4608b5 | 420 | Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Int_t effPur, Float_t e) const |
bc0c084c | 421 | { |
e3817e5f | 422 | if(effPur>2 || effPur<0) |
423 | Error("GetCPVBit","Invalid Efficiency-Purity choice %d",effPur); | |
bc0c084c | 424 | |
e3817e5f | 425 | Float_t sigX = GetCpv2EmcDistanceCut("X",e); |
426 | Float_t sigZ = GetCpv2EmcDistanceCut("Z",e); | |
bc0c084c | 427 | |
428 | Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X")); | |
429 | Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z")); | |
8d4608b5 | 430 | |
e3817e5f | 431 | if((deltaX>sigX*(effPur+1))|(deltaZ>sigZ*(effPur+1))) |
bc0c084c | 432 | return 1;//Neutral |
433 | else | |
434 | return 0;//Charged | |
bc0c084c | 435 | } |
69183710 | 436 | |
6ad0bfa0 | 437 | //____________________________________________________________________________ |
fc7e2f43 | 438 | Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p, Int_t effPur, Float_t e)const |
148b2bba | 439 | { |
50739f15 | 440 | //Is the particle inside de PCA ellipse? |
581354c5 | 441 | |
e3817e5f | 442 | particle.ToLower(); |
443 | Int_t prinbit = 0 ; | |
444 | Float_t a = GetEllipseParameter(particle,"a" , e); | |
445 | Float_t b = GetEllipseParameter(particle,"b" , e); | |
446 | Float_t c = GetEllipseParameter(particle,"c" , e); | |
447 | Float_t x0 = GetEllipseParameter(particle,"x0", e); | |
448 | Float_t y0 = GetEllipseParameter(particle,"y0", e); | |
449 | ||
450 | Float_t r = TMath::Power((p[0] - x0)/a,2) + | |
451 | TMath::Power((p[1] - y0)/b,2) + | |
452 | c*(p[0] - x0)*(p[1] - y0)/(a*b) ; | |
50739f15 | 453 | //3 different ellipses defined |
e3817e5f | 454 | if((effPur==2) && (r<1./2.)) prinbit= 1; |
455 | if((effPur==1) && (r<2. )) prinbit= 1; | |
456 | if((effPur==0) && (r<9./2.)) prinbit= 1; | |
50739f15 | 457 | |
581354c5 | 458 | if(r<0) |
e3817e5f | 459 | Error("GetPrincipalBit", "Negative square?") ; |
1f0e7ccd | 460 | |
461 | return prinbit; | |
148b2bba | 462 | |
148b2bba | 463 | } |
1f0e7ccd | 464 | //____________________________________________________________________________ |
fc7e2f43 | 465 | Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const |
1f0e7ccd | 466 | { |
e3817e5f | 467 | // Set bit for identified hard photons (E > 30 GeV) |
468 | // if the second moment M2x is below the boundary | |
469 | ||
470 | Float_t e = emc->GetEnergy(); | |
471 | if (e < 30.0) return 0; | |
472 | Float_t m2x = emc->GetM2x(); | |
473 | Float_t m2xBoundary = GetParameterPhotonBoundary(0) * | |
474 | TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/ | |
475 | TMath::Power(GetParameterPhotonBoundary(2),2)) + | |
476 | GetParameterPhotonBoundary(3); | |
61d3d6aa | 477 | //Info("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary); |
e3817e5f | 478 | if (m2x < m2xBoundary) |
479 | return 1;// A hard photon | |
480 | else | |
481 | return 0;// Not a hard photon | |
1f0e7ccd | 482 | } |
92f521a9 | 483 | |
e3817e5f | 484 | //____________________________________________________________________________ |
fc7e2f43 | 485 | Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) const |
e3817e5f | 486 | { |
487 | // Set bit for identified hard pi0 (E > 30 GeV) | |
488 | // if the second moment M2x is above the boundary | |
489 | ||
490 | Float_t e = emc->GetEnergy(); | |
491 | if (e < 30.0) return 0; | |
492 | Float_t m2x = emc->GetM2x(); | |
493 | Float_t m2xBoundary = GetParameterPi0Boundary(0) + | |
494 | e * GetParameterPi0Boundary(1); | |
61d3d6aa | 495 | //Info("GetHardPi0Bit","E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary); |
e3817e5f | 496 | if (m2x > m2xBoundary) |
497 | return 1;// A hard pi0 | |
bc0c084c | 498 | else |
e3817e5f | 499 | return 0;// Not a hard pi0 |
f0a4c9e9 | 500 | } |
e3817e5f | 501 | |
502 | //____________________________________________________________________________ | |
8d4608b5 | 503 | TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * )const |
88cb7938 | 504 | { |
505 | // Calculates the momentum direction: | |
506 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
507 | // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints | |
508 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
509 | // in case 1. | |
f0a4c9e9 | 510 | |
88cb7938 | 511 | TVector3 dir(0,0,0) ; |
9688c1dd | 512 | |
88cb7938 | 513 | TVector3 emcglobalpos ; |
514 | TMatrix dummy ; | |
bf8f1fbd | 515 | |
88cb7938 | 516 | emc->GetGlobalPosition(emcglobalpos, dummy) ; |
bf8f1fbd | 517 | |
fbf811ec | 518 | |
88cb7938 | 519 | dir = emcglobalpos ; |
88cb7938 | 520 | dir.SetMag(1.) ; |
e3817e5f | 521 | |
88cb7938 | 522 | //account correction to the position of IP |
523 | Float_t xo,yo,zo ; //Coordinates of the origin | |
524 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; | |
525 | TVector3 origin(xo,yo,zo); | |
526 | dir = dir - origin ; | |
e3817e5f | 527 | |
88cb7938 | 528 | return dir ; |
7b7c1533 | 529 | } |
530 | ||
7acf6008 | 531 | //____________________________________________________________________________ |
e3817e5f | 532 | void AliPHOSPIDv1::MakeRecParticles() |
533 | { | |
b2a60966 | 534 | // Makes a RecParticle out of a TrackSegment |
148b2bba | 535 | |
88cb7938 | 536 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
fbf811ec | 537 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
538 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
539 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
148b2bba | 540 | if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) { |
f1611b7c | 541 | Fatal("MakeRecParticles", "RecPoints or TrackSegments not found !") ; |
148b2bba | 542 | } |
fbf811ec | 543 | TClonesArray * recParticles = gime->RecParticles() ; |
01a599c9 | 544 | recParticles->Clear(); |
148b2bba | 545 | |
7b7c1533 | 546 | TIter next(trackSegments) ; |
7acf6008 | 547 | AliPHOSTrackSegment * ts ; |
6ad0bfa0 | 548 | Int_t index = 0 ; |
09fc14a0 | 549 | AliPHOSRecParticle * rp ; |
7acf6008 | 550 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { |
fad3e5b9 | 551 | |
7b7c1533 | 552 | new( (*recParticles)[index] ) AliPHOSRecParticle() ; |
553 | rp = (AliPHOSRecParticle *)recParticles->At(index) ; | |
f0a4c9e9 | 554 | rp->SetTrackSegment(index) ; |
9688c1dd | 555 | rp->SetIndexInList(index) ; |
148b2bba | 556 | |
7acf6008 | 557 | AliPHOSEmcRecPoint * emc = 0 ; |
558 | if(ts->GetEmcIndex()>=0) | |
7b7c1533 | 559 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; |
fad3e5b9 | 560 | |
8d4608b5 | 561 | AliPHOSCpvRecPoint * cpv = 0 ; |
7acf6008 | 562 | if(ts->GetCpvIndex()>=0) |
8d4608b5 | 563 | cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; |
fad3e5b9 | 564 | |
bd76890a | 565 | Int_t track = 0 ; |
566 | track = ts->GetTrackIndex() ; | |
567 | ||
148b2bba | 568 | // Now set type (reconstructed) of the particle |
569 | ||
570 | // Choose the cluster energy range | |
9fa5f1d0 | 571 | |
fbf811ec | 572 | if (!emc) { |
f1611b7c | 573 | Fatal("MakeRecParticles", "-> emc(%d) = %d", ts->GetEmcIndex(), emc ) ; |
fbf811ec | 574 | } |
50739f15 | 575 | |
e3817e5f | 576 | Float_t e = emc->GetEnergy() ; |
bc0c084c | 577 | |
6f969528 | 578 | Float_t lambda[2] ; |
579 | emc->GetElipsAxis(lambda) ; | |
50739f15 | 580 | |
581 | if((lambda[0]>0.01) && (lambda[1]>0.01)){ | |
582 | // Looking PCA. Define and calculate the data (X), | |
bc0c084c | 583 | // introduce in the function X2P that gives the components (P). |
584 | ||
e3817e5f | 585 | Float_t Spher = 0. ; |
586 | Float_t Emaxdtotal = 0. ; | |
50739f15 | 587 | |
bc0c084c | 588 | if((lambda[0]+lambda[1])!=0) |
e3817e5f | 589 | Spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]); |
50739f15 | 590 | |
e3817e5f | 591 | Emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy(); |
50739f15 | 592 | |
593 | fX[0] = lambda[0] ; | |
594 | fX[1] = lambda[1] ; | |
595 | fX[2] = emc->GetDispersion() ; | |
e3817e5f | 596 | fX[3] = Spher ; |
50739f15 | 597 | fX[4] = emc->GetMultiplicity() ; |
e3817e5f | 598 | fX[5] = Emaxdtotal ; |
50739f15 | 599 | fX[6] = emc->GetCoreEnergy() ; |
600 | ||
e3817e5f | 601 | fPrincipalPhoton->X2P(fX,fPPhoton); |
602 | fPrincipalPi0 ->X2P(fX,fPPi0); | |
1f0e7ccd | 603 | |
50739f15 | 604 | } |
605 | else{ | |
e3817e5f | 606 | fPPhoton[0]=-100.0; //We do not accept clusters with |
607 | fPPhoton[1]=-100.0; //one cell as a photon-like | |
608 | fPPi0[0] =-100.0; | |
609 | fPPi0[1] =-100.0; | |
50739f15 | 610 | } |
611 | ||
6f969528 | 612 | Float_t time =emc->GetTime() ; |
9fa5f1d0 | 613 | |
bc0c084c | 614 | // Loop of Efficiency-Purity (the 3 points of purity or efficiency |
615 | // are taken into account to set the particle identification) | |
e3817e5f | 616 | for(Int_t effPur = 0; effPur < 3 ; effPur++){ |
50739f15 | 617 | |
bc0c084c | 618 | // Looking at the CPV detector. If RCPV greater than CpvEmcDistance, |
619 | // 1st,2nd or 3rd bit (depending on the efficiency-purity point ) | |
620 | // is set to 1 | |
e3817e5f | 621 | if(GetCPVBit(emc, cpv, effPur,e) == 1 ) |
622 | rp->SetPIDBit(effPur) ; | |
f0a4c9e9 | 623 | |
50739f15 | 624 | // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th |
625 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 626 | if(time< (*fParameters)(2,effPur)) |
627 | rp->SetPIDBit(effPur+3) ; | |
50739f15 | 628 | |
e3817e5f | 629 | //Photon PCA |
50739f15 | 630 | //If we are inside the ellipse, 7th, 8th or 9th |
631 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 632 | if(GetPrincipalBit("photon",fPPhoton,effPur,e) == 1) |
633 | rp->SetPIDBit(effPur+6) ; | |
1f0e7ccd | 634 | |
e3817e5f | 635 | //Pi0 PCA |
1f0e7ccd | 636 | //If we are inside the ellipse, 10th, 11th or 12th |
637 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 638 | if(GetPrincipalBit("pi0" ,fPPi0 ,effPur,e) == 1) |
639 | rp->SetPIDBit(effPur+9) ; | |
f0a4c9e9 | 640 | } |
e3817e5f | 641 | if(GetHardPhotonBit(emc)) |
642 | rp->SetPIDBit(12) ; | |
643 | if(GetHardPi0Bit (emc)) | |
644 | rp->SetPIDBit(13) ; | |
1f0e7ccd | 645 | |
bd76890a | 646 | if(track >= 0) |
647 | rp->SetPIDBit(14) ; | |
648 | ||
9fa5f1d0 | 649 | //Set momentum, energy and other parameters |
50739f15 | 650 | Float_t encal = GetCalibratedEnergy(e); |
9fa5f1d0 | 651 | TVector3 dir = GetMomentumDirection(emc,cpv) ; |
652 | dir.SetMag(encal) ; | |
653 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),encal) ; | |
654 | rp->SetCalcMass(0); | |
e0ed2e49 | 655 | rp->Name(); //If photon sets the particle pdg name to gamma |
e747b8da | 656 | rp->SetProductionVertex(0,0,0,0); |
657 | rp->SetFirstMother(-1); | |
658 | rp->SetLastMother(-1); | |
659 | rp->SetFirstDaughter(-1); | |
660 | rp->SetLastDaughter(-1); | |
661 | rp->SetPolarisation(0,0,0); | |
d956e9b7 | 662 | //Set the position in global coordinate system from the RecPoint |
663 | AliPHOSGeometry * geom = gime->PHOSGeometry() ; | |
664 | AliPHOSTrackSegment * ts = gime->TrackSegment(rp->GetPHOSTSIndex()) ; | |
665 | AliPHOSEmcRecPoint * erp = gime->EmcRecPoint(ts->GetEmcIndex()) ; | |
666 | TVector3 pos ; | |
667 | geom->GetGlobal(erp, pos) ; | |
668 | rp->SetPos(pos); | |
669 | ||
6ad0bfa0 | 670 | index++ ; |
671 | } | |
6ad0bfa0 | 672 | } |
e3817e5f | 673 | |
09fc14a0 | 674 | //____________________________________________________________________________ |
88cb7938 | 675 | void AliPHOSPIDv1::Print() const |
09fc14a0 | 676 | { |
b2a60966 | 677 | // Print the parameters used for the particle type identification |
bc0c084c | 678 | |
88cb7938 | 679 | Info("Print", "=============== AliPHOSPIDv1 ================") ; |
680 | printf("Making PID\n") ; | |
681 | printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileNamePrincipalPhoton.Data() ) ; | |
682 | printf(" Name of parameters file %s\n", fFileNameParameters.Data() ) ; | |
683 | printf(" Matrix of Parameters: 14x4\n") ; | |
684 | printf(" Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n") ; | |
685 | printf(" RCPV 2x3 rows x and z, columns function cut parameters\n") ; | |
686 | printf(" TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n") ; | |
687 | printf(" PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n") ; | |
688 | Printf(" Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n") ; | |
50739f15 | 689 | fParameters->Print() ; |
09fc14a0 | 690 | } |
691 | ||
a496c46c | 692 | |
69183710 | 693 | |
7acf6008 | 694 | //____________________________________________________________________________ |
a4e98857 | 695 | void AliPHOSPIDv1::PrintRecParticles(Option_t * option) |
696 | { | |
dd5c4038 | 697 | // Print table of reconstructed particles |
698 | ||
88cb7938 | 699 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; |
bf8f1fbd | 700 | |
88cb7938 | 701 | TClonesArray * recParticles = gime->RecParticles() ; |
21cd0c07 | 702 | |
703 | TString message ; | |
3bf72d32 | 704 | message = "\nevent " ; |
705 | message += gAlice->GetEvNumber() ; | |
706 | message += " found " ; | |
707 | message += recParticles->GetEntriesFast(); | |
708 | message += " RecParticles\n" ; | |
709 | ||
7acf6008 | 710 | if(strstr(option,"all")) { // printing found TS |
3bf72d32 | 711 | message += "\n PARTICLE Index \n" ; |
7acf6008 | 712 | |
713 | Int_t index ; | |
7b7c1533 | 714 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { |
21cd0c07 | 715 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; |
3bf72d32 | 716 | message += "\n" ; |
717 | message += rp->Name().Data() ; | |
718 | message += " " ; | |
719 | message += rp->GetIndexInList() ; | |
720 | message += " " ; | |
721 | message += rp->GetType() ; | |
7acf6008 | 722 | } |
3bf72d32 | 723 | } |
724 | Info("Print", message.Data() ) ; | |
69183710 | 725 | } |
88cb7938 | 726 | |
727 | //____________________________________________________________________________ | |
728 | void AliPHOSPIDv1::SetParameters() | |
729 | { | |
730 | // PCA : To do the Principal Components Analysis it is necessary | |
731 | // the Principal file, which is opened here | |
732 | fX = new double[7]; // Data for the PCA | |
733 | fPPhoton = new double[7]; // Eigenvalues of the PCA | |
734 | fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA | |
735 | ||
736 | // Read photon principals from the photon file | |
737 | ||
738 | fFileNamePrincipalPhoton = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ; | |
739 | TFile f( fFileNamePrincipalPhoton.Data(), "read" ) ; | |
740 | fPrincipalPhoton = dynamic_cast<TPrincipal*> (f.Get("principal")) ; | |
741 | f.Close() ; | |
742 | ||
743 | // Read pi0 principals from the pi0 file | |
744 | ||
745 | fFileNamePrincipalPi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ; | |
746 | TFile fPi0( fFileNamePrincipalPi0.Data(), "read" ) ; | |
747 | fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ; | |
748 | fPi0.Close() ; | |
749 | ||
750 | // Open parameters file and initialization of the Parameters matrix. | |
751 | // In the File Parameters.dat are all the parameters. These are introduced | |
752 | // in a matrix of 16x4 | |
753 | // | |
754 | // All the parameters defined in this file are, in order of row: | |
755 | // line 0 : calibration | |
756 | // lines 1,2 : CPV rectangular cat for X and Z | |
757 | // line 3 : TOF cut | |
758 | // lines 4-8 : parameters to calculate photon PCA ellipse | |
759 | // lines 9-13: parameters to calculate pi0 PCA ellipse | |
760 | // lines 14-15: parameters to calculate border for high-pt photons and pi0 | |
761 | ||
762 | fFileNameParameters = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat"); | |
763 | fParameters = new TMatrix(16,4) ; | |
764 | const Int_t maxLeng=255; | |
765 | char string[maxLeng]; | |
766 | ||
767 | // Open a text file with PID parameters | |
768 | FILE *fd = fopen(fFileNameParameters.Data(),"r"); | |
769 | if (!fd) | |
770 | Fatal("SetParameter","File %s with a PID parameters cannot be opened\n", | |
771 | fFileNameParameters.Data()); | |
772 | ||
773 | Int_t i=0; | |
774 | // Read parameter file line-by-line and skip empty line and comments | |
775 | while (fgets(string,maxLeng,fd) != NULL) { | |
776 | if (string[0] == '\n' ) continue; | |
777 | if (string[0] == '!' ) continue; | |
778 | sscanf(string, "%f %f %f %f", | |
779 | &(*fParameters)(i,0), &(*fParameters)(i,1), | |
780 | &(*fParameters)(i,2), &(*fParameters)(i,3)); | |
781 | i++; | |
782 | //printf("line %d: %s",i,string); | |
783 | } | |
784 | fclose(fd); | |
785 | } | |
786 | ||
787 | //____________________________________________________________________________ | |
788 | void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param) | |
789 | { | |
790 | // Set parameter "Calibration" i to a value param | |
791 | if(i>2 || i<0) | |
792 | Error("SetParameterCalibration","Invalid parameter number: %d",i); | |
793 | else | |
794 | (*fParameters)(0,i) = param ; | |
795 | } | |
796 | ||
797 | //____________________________________________________________________________ | |
798 | void AliPHOSPIDv1::SetParameterCpv2Emc(Int_t i, TString axis, Float_t cut) | |
799 | { | |
800 | // Set the parameters to calculate Cpv-to-Emc Distance Cut depending on | |
801 | // Purity-Efficiency point i | |
802 | ||
803 | if(i>2 || i<0) | |
804 | Error("SetParameterCpv2Emc","Invalid parameter number: %d",i); | |
805 | else { | |
806 | axis.ToLower(); | |
807 | if (axis == "x") (*fParameters)(1,i) = cut; | |
808 | else if (axis == "z") (*fParameters)(2,i) = cut; | |
809 | else Error("SetParameterCpv2Emc","Invalid axis name: %s",axis.Data()); | |
810 | } | |
811 | } | |
812 | ||
813 | //____________________________________________________________________________ | |
814 | void AliPHOSPIDv1::SetParameterPhotonBoundary(Int_t i,Float_t param) | |
815 | { | |
816 | // Set parameter "Hard photon boundary" i to a value param | |
817 | if(i>4 || i<0) | |
818 | Error("SetParameterPhotonBoundary","Invalid parameter number: %d",i); | |
819 | else | |
820 | (*fParameters)(14,i) = param ; | |
821 | } | |
822 | ||
823 | //____________________________________________________________________________ | |
824 | void AliPHOSPIDv1::SetParameterPi0Boundary(Int_t i,Float_t param) | |
825 | { | |
826 | // Set parameter "Hard pi0 boundary" i to a value param | |
827 | if(i>1 || i<0) | |
828 | Error("SetParameterPi0Boundary","Invalid parameter number: %d",i); | |
829 | else | |
830 | (*fParameters)(15,i) = param ; | |
831 | } | |
832 | ||
833 | //_____________________________________________________________________________ | |
834 | void AliPHOSPIDv1::SetParameterTimeGate(Int_t i, Float_t gate) | |
835 | { | |
836 | // Set the parameter TimeGate depending on Purity-Efficiency point i | |
837 | if (i>2 || i<0) | |
838 | Error("SetParameterTimeGate","Invalid Efficiency-Purity choice %d",i); | |
839 | else | |
840 | (*fParameters)(3,i)= gate ; | |
841 | } | |
842 | ||
843 | //_____________________________________________________________________________ | |
844 | void AliPHOSPIDv1::SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t par) | |
845 | { | |
846 | // Set the parameter "i" that is needed to calculate the ellipse | |
847 | // parameter "param" for a particle "particle" | |
848 | ||
849 | particle.ToLower(); | |
850 | param. ToLower(); | |
851 | Int_t p= -1; | |
852 | Int_t offset=0; | |
853 | ||
854 | if (particle == "photon") offset=0; | |
855 | else if (particle == "pi0") offset=5; | |
856 | else | |
857 | Error("SetParameterToCalculateEllipse","Wrong particle name: %s (choose from pi0/photon)\n",particle.Data()); | |
858 | ||
859 | if (param.Contains("a")) p=4+offset; | |
860 | else if(param.Contains("b")) p=5+offset; | |
861 | else if(param.Contains("c")) p=6+offset; | |
862 | else if(param.Contains("x0"))p=7+offset; | |
863 | else if(param.Contains("y0"))p=8+offset; | |
864 | if((i>4)||(i<0)) | |
865 | Error("SetEllipseParameter", "No parameter with index %d", i) ; | |
866 | else if(p==-1) | |
867 | Error("SetEllipseParameter", "No parameter with name %s", param.Data() ) ; | |
868 | else | |
869 | (*fParameters)(p,i) = par ; | |
870 | } | |
871 | ||
872 | //____________________________________________________________________________ | |
873 | void AliPHOSPIDv1::Unload() | |
874 | { | |
875 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
876 | gime->PhosLoader()->UnloadRecPoints() ; | |
877 | gime->PhosLoader()->UnloadTracks() ; | |
878 | gime->PhosLoader()->UnloadRecParticles() ; | |
879 | } | |
880 | ||
881 | //____________________________________________________________________________ | |
90cceaf6 | 882 | void AliPHOSPIDv1::WriteRecParticles() |
88cb7938 | 883 | { |
884 | ||
885 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; | |
886 | ||
887 | TClonesArray * recParticles = gime->RecParticles() ; | |
888 | recParticles->Expand(recParticles->GetEntriesFast() ) ; | |
889 | TTree * treeP = gime->TreeP(); | |
890 | ||
891 | //First rp | |
892 | Int_t bufferSize = 32000 ; | |
893 | TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize); | |
894 | rpBranch->SetTitle(BranchName()); | |
895 | ||
896 | rpBranch->Fill() ; | |
897 | ||
898 | gime->WriteRecParticles("OVERWRITE"); | |
899 | gime->WritePID("OVERWRITE"); | |
900 | } | |
901 |