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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 | ||
702ab87e | 18 | /* History of cvs commits: |
19 | * | |
20 | * $Log$ | |
e4df4b30 | 21 | * Revision 1.103 2006/09/07 18:31:08 kharlov |
22 | * Effective c++ corrections (T.Pocheptsov) | |
23 | * | |
3f7dbdb7 | 24 | * Revision 1.102 2006/01/23 17:51:48 hristov |
25 | * Using the recommended way of forward declarations for TVector and TMatrix (see v5-08-00 release notes). Additional clean-up | |
26 | * | |
e8d02863 | 27 | * Revision 1.101 2005/05/28 14:19:04 schutz |
28 | * Compilation warnings fixed by T.P. | |
29 | * | |
702ab87e | 30 | */ |
31 | ||
6ad0bfa0 | 32 | //_________________________________________________________________________ |
b2a60966 | 33 | // Implementation version v1 of the PHOS particle identifier |
7acf6008 | 34 | // Particle identification based on the |
148b2bba | 35 | // - RCPV: distance from CPV recpoint to EMCA recpoint. |
36 | // - TOF | |
37 | // - PCA: Principal Components Analysis.. | |
38 | // The identified particle has an identification number corresponding | |
39 | // to a 9 bits number: | |
bc0c084c | 40 | // -Bit 0 to 2: bit set if RCPV > CpvEmcDistance (each bit corresponds |
148b2bba | 41 | // to a different efficiency-purity point of the photon identification) |
bc0c084c | 42 | // -Bit 3 to 5: bit set if TOF < TimeGate (each bit corresponds |
148b2bba | 43 | // to a different efficiency-purity point of the photon identification) |
44 | // -Bit 6 to 9: bit set if Principal Components are | |
50739f15 | 45 | // inside an ellipse defined by the parameters a, b, c, x0 and y0. |
148b2bba | 46 | // (each bit corresponds to a different efficiency-purity point of the |
50739f15 | 47 | // photon identification) |
48 | // The PCA (Principal components analysis) needs a file that contains | |
49 | // a previous analysis of the correlations between the particles. This | |
bc0c084c | 50 | // file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis done for |
50739f15 | 51 | // energies between 0.5 and 100 GeV. |
9fa5f1d0 | 52 | // A calibrated energy is calculated. The energy of the reconstructed |
50739f15 | 53 | // cluster is corrected with the formula A + B * E + C * E^2, whose |
bc0c084c | 54 | // parameters where obtained through the study of the reconstructed |
50739f15 | 55 | // energy distribution of monoenergetic photons. |
a4e98857 | 56 | // |
bc0c084c | 57 | // All the parameters (RCPV(2 rows-3 columns),TOF(1r-3c),PCA(5r-4c) |
50739f15 | 58 | // and calibration(1r-3c))are stored in a file called |
59 | // $ALICE_ROOT/PHOS/Parameters.dat. Each time that AliPHOSPIDv1 is | |
bc0c084c | 60 | // initialized, this parameters are copied to a Matrix (9,4), a |
50739f15 | 61 | // TMatrixD object. |
7acf6008 | 62 | // |
a4e98857 | 63 | // use case: |
50739f15 | 64 | // root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root") |
a4e98857 | 65 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50739f15 | 66 | // // reading headers from file galice1.root and create RecParticles |
67 | // TrackSegments and RecPoints are used | |
68 | // // set file name for the branch RecParticles | |
f0a4c9e9 | 69 | // root [1] p->ExecuteTask("deb all time") |
50739f15 | 70 | // // available options |
71 | // // "deb" - prints # of reconstructed particles | |
72 | // // "deb all" - prints # and list of RecParticles | |
73 | // // "time" - prints benchmarking results | |
7acf6008 | 74 | // |
50739f15 | 75 | // root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1",kTRUE) |
148b2bba | 76 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50739f15 | 77 | // //Split mode. |
f0a4c9e9 | 78 | // root [3] p2->ExecuteTask() |
79 | // | |
50739f15 | 80 | |
f0a4c9e9 | 81 | |
7acf6008 | 82 | //*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & |
148b2bba | 83 | // Gustavo Conesa April 2002 |
50739f15 | 84 | // PCA redesigned by Gustavo Conesa October 2002: |
85 | // The way of using the PCA has changed. Instead of 2 | |
86 | // files with the PCA, each one with different energy ranges | |
87 | // of application, we use the wide one (0.5-100 GeV), and instead | |
bc0c084c | 88 | // of fixing 3 ellipses for different ranges of energy, it has been |
50739f15 | 89 | // studied the dependency of the ellipses parameters with the |
90 | // energy, and they are implemented in the code as a funtion | |
91 | // of the energy. | |
92 | // | |
93 | // | |
94 | // | |
6ad0bfa0 | 95 | // --- ROOT system --- |
c947e71a | 96 | |
97 | ||
98 | // --- Standard library --- | |
e8d02863 | 99 | #include <TMatrixF.h> |
acb5beb7 | 100 | #include "TFormula.h" |
7acf6008 | 101 | #include "TBenchmark.h" |
148b2bba | 102 | #include "TPrincipal.h" |
c947e71a | 103 | #include "TFile.h" |
e3817e5f | 104 | #include "TSystem.h" |
148b2bba | 105 | |
6ad0bfa0 | 106 | // --- AliRoot header files --- |
c947e71a | 107 | //#include "AliLog.h" |
7acf6008 | 108 | #include "AliGenerator.h" |
e3817e5f | 109 | #include "AliPHOS.h" |
26d4b141 | 110 | #include "AliPHOSPIDv1.h" |
7b7c1533 | 111 | #include "AliPHOSGetter.h" |
6ad0bfa0 | 112 | |
26d4b141 | 113 | ClassImp( AliPHOSPIDv1) |
6ad0bfa0 | 114 | |
1cb7c1ee | 115 | //____________________________________________________________________________ |
3f7dbdb7 | 116 | AliPHOSPIDv1::AliPHOSPIDv1() : |
117 | fBayesian(kFALSE), | |
118 | fDefaultInit(kFALSE), | |
119 | fWrite(kFALSE), | |
120 | fNEvent(0), | |
121 | fFileNamePrincipalPhoton(), | |
122 | fFileNamePrincipalPi0(), | |
123 | fFileNameParameters(), | |
124 | fPrincipalPhoton(0), | |
125 | fPrincipalPi0(0), | |
126 | fX(0), | |
127 | fPPhoton(0), | |
128 | fPPi0(0), | |
129 | fRecParticlesInRun(0), | |
130 | fParameters(0), | |
131 | fTFphoton(0), | |
132 | fTFpiong(0), | |
133 | fTFkaong(0), | |
134 | fTFkaonl(0), | |
135 | fTFhhadrong(0), | |
136 | fTFhhadronl(0), | |
137 | fDFmuon(0), | |
138 | fERecWeight(0), | |
139 | fChargedNeutralThreshold(0.), | |
140 | fTOFEnThreshold(0), | |
141 | fDispEnThreshold(0), | |
142 | fDispMultThreshold(0) | |
1cb7c1ee | 143 | { |
a4e98857 | 144 | // default ctor |
148b2bba | 145 | |
8d0f3f77 | 146 | InitParameters() ; |
92f521a9 | 147 | fDefaultInit = kTRUE ; |
7acf6008 | 148 | } |
149 | ||
581354c5 | 150 | //____________________________________________________________________________ |
3f7dbdb7 | 151 | AliPHOSPIDv1::AliPHOSPIDv1(const AliPHOSPIDv1 & pid ) : |
152 | AliPHOSPID(pid), | |
153 | fBayesian(kFALSE), | |
154 | fDefaultInit(kFALSE), | |
155 | fWrite(kFALSE), | |
156 | fNEvent(0), | |
157 | fFileNamePrincipalPhoton(), | |
158 | fFileNamePrincipalPi0(), | |
159 | fFileNameParameters(), | |
160 | fPrincipalPhoton(0), | |
161 | fPrincipalPi0(0), | |
162 | fX(0), | |
163 | fPPhoton(0), | |
164 | fPPi0(0), | |
165 | fRecParticlesInRun(0), | |
166 | fParameters(0), | |
167 | fTFphoton(0), | |
168 | fTFpiong(0), | |
169 | fTFkaong(0), | |
170 | fTFkaonl(0), | |
171 | fTFhhadrong(0), | |
172 | fTFhhadronl(0), | |
173 | fDFmuon(0), | |
174 | fERecWeight(0), | |
175 | fChargedNeutralThreshold(0.), | |
176 | fTOFEnThreshold(0), | |
177 | fDispEnThreshold(0), | |
178 | fDispMultThreshold(0) | |
179 | ||
581354c5 | 180 | { |
386aef34 | 181 | // ctor |
581354c5 | 182 | InitParameters() ; |
581354c5 | 183 | Init() ; |
581354c5 | 184 | |
185 | } | |
186 | ||
7acf6008 | 187 | //____________________________________________________________________________ |
3f7dbdb7 | 188 | AliPHOSPIDv1::AliPHOSPIDv1(const TString alirunFileName, const TString eventFolderName) : |
189 | AliPHOSPID(alirunFileName, eventFolderName), | |
190 | fBayesian(kFALSE), | |
191 | fDefaultInit(kFALSE), | |
192 | fWrite(kFALSE), | |
193 | fNEvent(0), | |
194 | fFileNamePrincipalPhoton(), | |
195 | fFileNamePrincipalPi0(), | |
196 | fFileNameParameters(), | |
197 | fPrincipalPhoton(0), | |
198 | fPrincipalPi0(0), | |
199 | fX(0), | |
200 | fPPhoton(0), | |
201 | fPPi0(0), | |
202 | fRecParticlesInRun(0), | |
203 | fParameters(0), | |
204 | fTFphoton(0), | |
205 | fTFpiong(0), | |
206 | fTFkaong(0), | |
207 | fTFkaonl(0), | |
208 | fTFhhadrong(0), | |
209 | fTFhhadronl(0), | |
210 | fDFmuon(0), | |
211 | fERecWeight(0), | |
212 | fChargedNeutralThreshold(0.), | |
213 | fTOFEnThreshold(0), | |
214 | fDispEnThreshold(0), | |
215 | fDispMultThreshold(0) | |
216 | ||
7acf6008 | 217 | { |
a4e98857 | 218 | //ctor with the indication on where to look for the track segments |
7b7c1533 | 219 | |
8d0f3f77 | 220 | InitParameters() ; |
2bd5457f | 221 | Init() ; |
92f521a9 | 222 | fDefaultInit = kFALSE ; |
7acf6008 | 223 | } |
7b7c1533 | 224 | |
7acf6008 | 225 | //____________________________________________________________________________ |
226 | AliPHOSPIDv1::~AliPHOSPIDv1() | |
227 | { | |
79bb1b62 | 228 | // dtor |
acb5beb7 | 229 | fPrincipalPhoton = 0; |
230 | fPrincipalPi0 = 0; | |
9fa5f1d0 | 231 | |
e3817e5f | 232 | delete [] fX ; // Principal input |
233 | delete [] fPPhoton ; // Photon Principal components | |
234 | delete [] fPPi0 ; // Pi0 Principal components | |
acb5beb7 | 235 | |
236 | delete fParameters; | |
237 | delete fTFphoton; | |
238 | delete fTFpiong; | |
239 | delete fTFkaong; | |
240 | delete fTFkaonl; | |
241 | delete fTFhhadrong; | |
242 | delete fTFhhadronl; | |
243 | delete fDFmuon; | |
7acf6008 | 244 | } |
a496c46c | 245 | //____________________________________________________________________________ |
246 | const TString AliPHOSPIDv1::BranchName() const | |
247 | { | |
88cb7938 | 248 | |
249 | return GetName() ; | |
a496c46c | 250 | } |
251 | ||
148b2bba | 252 | //____________________________________________________________________________ |
253 | void AliPHOSPIDv1::Init() | |
254 | { | |
255 | // Make all memory allocations that are not possible in default constructor | |
256 | // Add the PID task to the list of PHOS tasks | |
a496c46c | 257 | |
adcca1e6 | 258 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
259 | if(!gime) | |
260 | gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ; | |
88cb7938 | 261 | |
262 | if ( !gime->PID() ) | |
263 | gime->PostPID(this) ; | |
148b2bba | 264 | } |
8d0f3f77 | 265 | |
266 | //____________________________________________________________________________ | |
267 | void AliPHOSPIDv1::InitParameters() | |
268 | { | |
e3817e5f | 269 | // Initialize PID parameters |
adcca1e6 | 270 | fWrite = kTRUE ; |
8d0f3f77 | 271 | fRecParticlesInRun = 0 ; |
8d0f3f77 | 272 | fNEvent = 0 ; |
8d0f3f77 | 273 | fRecParticlesInRun = 0 ; |
35adb638 | 274 | fBayesian = kTRUE ; |
9fa5f1d0 | 275 | SetParameters() ; // fill the parameters matrix from parameters file |
eabde521 | 276 | SetEventRange(0,-1) ; |
35adb638 | 277 | |
cc1fe362 | 278 | // initialisation of response function parameters |
279 | // Tof | |
2924941c | 280 | |
281 | // // Photons | |
282 | // fTphoton[0] = 0.218 ; | |
283 | // fTphoton[1] = 1.55E-8 ; | |
284 | // fTphoton[2] = 5.05E-10 ; | |
285 | // fTFphoton = new TFormula("ToF response to photons" , "gaus") ; | |
286 | // fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ; | |
287 | ||
288 | // // Pions | |
289 | // //Gaus (0 to max probability) | |
290 | // fTpiong[0] = 0.0971 ; | |
291 | // fTpiong[1] = 1.58E-8 ; | |
292 | // fTpiong[2] = 5.69E-10 ; | |
293 | // fTFpiong = new TFormula("ToF response to pions" , "gaus") ; | |
294 | // fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ; | |
295 | ||
296 | // // Kaons | |
297 | // //Gaus (0 to max probability) | |
298 | // fTkaong[0] = 0.0542 ; | |
299 | // fTkaong[1] = 1.64E-8 ; | |
300 | // fTkaong[2] = 6.07E-10 ; | |
301 | // fTFkaong = new TFormula("ToF response to kaon" , "gaus") ; | |
302 | // fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ; | |
303 | // //Landau (max probability to inf) | |
304 | // fTkaonl[0] = 0.264 ; | |
305 | // fTkaonl[1] = 1.68E-8 ; | |
306 | // fTkaonl[2] = 4.10E-10 ; | |
307 | // fTFkaonl = new TFormula("ToF response to kaon" , "landau") ; | |
308 | // fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ; | |
309 | ||
310 | // //Heavy Hadrons | |
311 | // //Gaus (0 to max probability) | |
312 | // fThhadrong[0] = 0.0302 ; | |
313 | // fThhadrong[1] = 1.73E-8 ; | |
314 | // fThhadrong[2] = 9.52E-10 ; | |
315 | // fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ; | |
316 | // fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ; | |
317 | // //Landau (max probability to inf) | |
318 | // fThhadronl[0] = 0.139 ; | |
319 | // fThhadronl[1] = 1.745E-8 ; | |
320 | // fThhadronl[2] = 1.00E-9 ; | |
321 | // fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ; | |
322 | // fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ; | |
323 | ||
cc1fe362 | 324 | // Photons |
2924941c | 325 | fTphoton[0] = 7.83E8 ; |
35adb638 | 326 | fTphoton[1] = 1.55E-8 ; |
2924941c | 327 | fTphoton[2] = 5.09E-10 ; |
35adb638 | 328 | fTFphoton = new TFormula("ToF response to photons" , "gaus") ; |
cc1fe362 | 329 | fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ; |
35adb638 | 330 | |
331 | // Pions | |
332 | //Gaus (0 to max probability) | |
2924941c | 333 | fTpiong[0] = 6.73E8 ; |
35adb638 | 334 | fTpiong[1] = 1.58E-8 ; |
2924941c | 335 | fTpiong[2] = 5.87E-10 ; |
35adb638 | 336 | fTFpiong = new TFormula("ToF response to pions" , "gaus") ; |
337 | fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ; | |
35adb638 | 338 | |
339 | // Kaons | |
340 | //Gaus (0 to max probability) | |
2924941c | 341 | fTkaong[0] = 3.93E8 ; |
35adb638 | 342 | fTkaong[1] = 1.64E-8 ; |
2924941c | 343 | fTkaong[2] = 6.07E-10 ; |
35adb638 | 344 | fTFkaong = new TFormula("ToF response to kaon" , "gaus") ; |
345 | fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ; | |
346 | //Landau (max probability to inf) | |
2924941c | 347 | fTkaonl[0] = 2.0E9 ; |
35adb638 | 348 | fTkaonl[1] = 1.68E-8 ; |
349 | fTkaonl[2] = 4.10E-10 ; | |
350 | fTFkaonl = new TFormula("ToF response to kaon" , "landau") ; | |
351 | fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ; | |
352 | ||
353 | //Heavy Hadrons | |
354 | //Gaus (0 to max probability) | |
2924941c | 355 | fThhadrong[0] = 2.02E8 ; |
35adb638 | 356 | fThhadrong[1] = 1.73E-8 ; |
357 | fThhadrong[2] = 9.52E-10 ; | |
358 | fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ; | |
359 | fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ; | |
360 | //Landau (max probability to inf) | |
2924941c | 361 | fThhadronl[0] = 1.10E9 ; |
362 | fThhadronl[1] = 1.74E-8 ; | |
363 | fThhadronl[2] = 1.00E-9 ; | |
35adb638 | 364 | fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ; |
365 | fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ; | |
366 | ||
35adb638 | 367 | |
368 | ||
369 | // Shower shape: dispersion gaussian parameters | |
370 | // Photons | |
2924941c | 371 | |
372 | // fDphoton[0] = 4.62e-2; fDphoton[1] = 1.39e-2 ; fDphoton[2] = -3.80e-2;//constant | |
373 | // fDphoton[3] = 1.53 ; fDphoton[4] =-6.62e-2 ; fDphoton[5] = 0.339 ;//mean | |
374 | // fDphoton[6] = 6.89e-2; fDphoton[7] =-6.59e-2 ; fDphoton[8] = 0.194 ;//sigma | |
375 | ||
376 | // fDpi0[0] = 0.0586 ; fDpi0[1] = 1.06E-3 ; fDpi0[2] = 0. ;//constant | |
377 | // fDpi0[3] = 2.67 ; fDpi0[4] =-2.00E-2 ; fDpi0[5] = 9.37E-5 ;//mean | |
378 | // fDpi0[6] = 0.153 ; fDpi0[7] = 9.34E-4 ; fDpi0[8] =-1.49E-5 ;//sigma | |
379 | ||
380 | // fDhadron[0] = 1.61E-2 ; fDhadron[1] = 3.03E-3 ; fDhadron[2] = 1.01E-2 ;//constant | |
381 | // fDhadron[3] = 3.81 ; fDhadron[4] = 0.232 ; fDhadron[5] =-1.25 ;//mean | |
382 | // fDhadron[6] = 0.897 ; fDhadron[7] = 0.0987 ; fDhadron[8] =-0.534 ;//sigma | |
383 | ||
384 | fDphoton[0] = 1.5 ; fDphoton[1] = 0.49 ; fDphoton[2] =-1.7E-2 ;//constant | |
385 | fDphoton[3] = 1.5 ; fDphoton[4] = 4.0E-2 ; fDphoton[5] = 0.21 ;//mean | |
386 | fDphoton[6] = 4.8E-2 ; fDphoton[7] =-0.12 ; fDphoton[8] = 0.27 ;//sigma | |
387 | fDphoton[9] = 16.; //for E> fDphoton[9] parameters calculated at fDphoton[9] | |
388 | ||
389 | fDpi0[0] = 0.25 ; fDpi0[1] = 3.3E-2 ; fDpi0[2] =-1.0e-5 ;//constant | |
390 | fDpi0[3] = 1.50 ; fDpi0[4] = 398. ; fDpi0[5] = 12. ;//mean | |
391 | fDpi0[6] =-7.0E-2 ; fDpi0[7] =-524. ; fDpi0[8] = 22. ;//sigma | |
392 | fDpi0[9] = 110.; //for E> fDpi0[9] parameters calculated at fDpi0[9] | |
393 | ||
394 | fDhadron[0] = 6.5 ; fDhadron[1] =-5.3 ; fDhadron[2] = 1.5 ;//constant | |
395 | fDhadron[3] = 3.8 ; fDhadron[4] = 0.23 ; fDhadron[5] =-1.2 ;//mean | |
396 | fDhadron[6] = 0.88 ; fDhadron[7] = 9.3E-2 ; fDhadron[8] =-0.51 ;//sigma | |
397 | fDhadron[9] = 2.; //for E> fDhadron[9] parameters calculated at fDhadron[9] | |
398 | ||
399 | fDmuon[0] = 0.0631 ; | |
400 | fDmuon[1] = 1.4 ; | |
35adb638 | 401 | fDmuon[2] = 0.0557 ; |
402 | fDFmuon = new TFormula("Shower shape response to muons" , "landau") ; | |
403 | fDFmuon->SetParameters( fDmuon[0], fDmuon[1], fDmuon[2]) ; | |
404 | ||
35adb638 | 405 | |
c947e71a | 406 | // x(CPV-EMC) distance gaussian parameters |
407 | ||
2924941c | 408 | // fXelectron[0] = 8.06e-2 ; fXelectron[1] = 1.00e-2; fXelectron[2] =-5.14e-2;//constant |
409 | // fXelectron[3] = 0.202 ; fXelectron[4] = 8.15e-3; fXelectron[5] = 4.55 ;//mean | |
410 | // fXelectron[6] = 0.334 ; fXelectron[7] = 0.186 ; fXelectron[8] = 4.32e-2;//sigma | |
c947e71a | 411 | |
2924941c | 412 | // //charged hadrons gaus |
413 | // fXcharged[0] = 6.43e-3 ; fXcharged[1] =-4.19e-5; fXcharged[2] = 1.42e-3;//constant | |
414 | // fXcharged[3] = 2.75 ; fXcharged[4] =-0.40 ; fXcharged[5] = 1.68 ;//mean | |
415 | // fXcharged[6] = 3.135 ; fXcharged[7] =-9.41e-2; fXcharged[8] = 1.31e-2;//sigma | |
c947e71a | 416 | |
2924941c | 417 | // // z(CPV-EMC) distance gaussian parameters |
418 | ||
419 | // fZelectron[0] = 8.22e-2 ; fZelectron[1] = 5.11e-3; fZelectron[2] =-3.05e-2;//constant | |
420 | // fZelectron[3] = 3.09e-2 ; fZelectron[4] = 5.87e-2; fZelectron[5] =-9.49e-2;//mean | |
421 | // fZelectron[6] = 0.263 ; fZelectron[7] =-9.02e-3; fZelectron[8] = 0.151 ;//sigma | |
c947e71a | 422 | |
2924941c | 423 | // //charged hadrons gaus |
c947e71a | 424 | |
2924941c | 425 | // fZcharged[0] = 1.00e-2 ; fZcharged[1] = 2.82E-4 ; fZcharged[2] = 2.87E-3 ;//constant |
426 | // fZcharged[3] =-4.68e-2 ; fZcharged[4] =-9.21e-3 ; fZcharged[5] = 4.91e-2 ;//mean | |
427 | // fZcharged[6] = 1.425 ; fZcharged[7] =-5.90e-2 ; fZcharged[8] = 5.07e-2 ;//sigma | |
428 | ||
429 | ||
430 | fXelectron[0] =-1.6E-2 ; fXelectron[1] = 0.77 ; fXelectron[2] =-0.15 ;//constant | |
431 | fXelectron[3] = 0.35 ; fXelectron[4] = 0.25 ; fXelectron[5] = 4.12 ;//mean | |
432 | fXelectron[6] = 0.30 ; fXelectron[7] = 0.11 ; fXelectron[8] = 0.16 ;//sigma | |
433 | fXelectron[9] = 3.; //for E> fXelectron[9] parameters calculated at fXelectron[9] | |
434 | ||
c947e71a | 435 | //charged hadrons gaus |
2924941c | 436 | fXcharged[0] = 0.14 ; fXcharged[1] =-3.0E-2 ; fXcharged[2] = 0 ;//constant |
437 | fXcharged[3] = 1.4 ; fXcharged[4] =-9.3E-2 ; fXcharged[5] = 1.4 ;//mean | |
438 | fXcharged[6] = 5.7 ; fXcharged[7] = 0.27 ; fXcharged[8] =-1.8 ;//sigma | |
439 | fXcharged[9] = 1.2; //for E> fXcharged[9] parameters calculated at fXcharged[9] | |
440 | ||
441 | // z(CPV-EMC) distance gaussian parameters | |
c947e71a | 442 | |
2924941c | 443 | fZelectron[0] = 0.49 ; fZelectron[1] = 0.53 ; fZelectron[2] =-9.8E-2 ;//constant |
444 | fZelectron[3] = 2.8E-2 ; fZelectron[4] = 5.0E-2 ; fZelectron[5] =-8.2E-2 ;//mean | |
445 | fZelectron[6] = 0.25 ; fZelectron[7] =-1.7E-2 ; fZelectron[8] = 0.17 ;//sigma | |
446 | fZelectron[9] = 3.; //for E> fZelectron[9] parameters calculated at fZelectron[9] | |
447 | ||
448 | //charged hadrons gaus | |
c947e71a | 449 | |
2924941c | 450 | fZcharged[0] = 0.46 ; fZcharged[1] =-0.65 ; fZcharged[2] = 0.52 ;//constant |
451 | fZcharged[3] = 1.1E-2 ; fZcharged[4] = 0. ; fZcharged[5] = 0. ;//mean | |
452 | fZcharged[6] = 0.60 ; fZcharged[7] =-8.2E-2 ; fZcharged[8] = 0.45 ;//sigma | |
453 | fZcharged[9] = 1.2; //for E> fXcharged[9] parameters calculated at fXcharged[9] | |
454 | ||
fb7b51ad | 455 | //Threshold to differentiate between charged and neutral |
456 | fChargedNeutralThreshold = 1e-5; | |
2924941c | 457 | fTOFEnThreshold = 2; //Maximum energy to use TOF |
458 | fDispEnThreshold = 0.5; //Minimum energy to use shower shape | |
459 | fDispMultThreshold = 3; //Minimum multiplicity to use shower shape | |
fb7b51ad | 460 | |
461 | //Weight to hadrons recontructed energy | |
462 | ||
463 | fERecWeightPar[0] = 0.32 ; | |
464 | fERecWeightPar[1] = 3.8 ; | |
465 | fERecWeightPar[2] = 5.4E-3 ; | |
466 | fERecWeightPar[3] = 5.6E-2 ; | |
467 | fERecWeight = new TFormula("Weight for hadrons" , "[0]*exp(-x*[1])+[2]*exp(-x*[3])") ; | |
468 | fERecWeight ->SetParameters(fERecWeightPar[0],fERecWeightPar[1] ,fERecWeightPar[2] ,fERecWeightPar[3]) ; | |
469 | ||
470 | ||
304864ab | 471 | for (Int_t i =0; i< AliPID::kSPECIESN ; i++) |
35adb638 | 472 | fInitPID[i] = 1.; |
fb7b51ad | 473 | |
8d0f3f77 | 474 | } |
475 | ||
88cb7938 | 476 | //________________________________________________________________________ |
eabde521 | 477 | void AliPHOSPIDv1::Exec(Option_t *option) |
88cb7938 | 478 | { |
eabde521 | 479 | // Steering method to perform particle reconstruction and identification |
480 | // for the event range from fFirstEvent to fLastEvent. | |
481 | // This range is optionally set by SetEventRange(). | |
482 | // if fLastEvent=-1 (by default), then process events until the end. | |
61d3d6aa | 483 | |
88cb7938 | 484 | if(strstr(option,"tim")) |
485 | gBenchmark->Start("PHOSPID"); | |
486 | ||
487 | if(strstr(option,"print")) { | |
488 | Print() ; | |
489 | return ; | |
490 | } | |
491 | ||
492 | ||
adcca1e6 | 493 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
88cb7938 | 494 | |
71cee46d | 495 | if (fLastEvent == -1) |
496 | fLastEvent = gime->MaxEvent() - 1 ; | |
497 | else | |
498 | fLastEvent = TMath::Min(fLastEvent,gime->MaxEvent()); | |
eabde521 | 499 | Int_t nEvents = fLastEvent - fFirstEvent + 1; |
88cb7938 | 500 | |
71cee46d | 501 | Int_t ievent ; |
502 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
88cb7938 | 503 | gime->Event(ievent,"TR") ; |
504 | if(gime->TrackSegments() && //Skip events, where no track segments made | |
505 | gime->TrackSegments()->GetEntriesFast()) { | |
7fb46731 | 506 | |
88cb7938 | 507 | MakeRecParticles() ; |
35adb638 | 508 | |
509 | if(fBayesian) | |
510 | MakePID() ; | |
511 | ||
90cceaf6 | 512 | WriteRecParticles(); |
88cb7938 | 513 | if(strstr(option,"deb")) |
514 | PrintRecParticles(option) ; | |
515 | //increment the total number of rec particles per run | |
516 | fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; | |
517 | } | |
518 | } | |
ff417097 | 519 | if(strstr(option,"deb")) |
520 | PrintRecParticles(option); | |
88cb7938 | 521 | if(strstr(option,"tim")){ |
522 | gBenchmark->Stop("PHOSPID"); | |
351dd634 | 523 | AliInfo(Form("took %f seconds for PID %f seconds per event", |
88cb7938 | 524 | gBenchmark->GetCpuTime("PHOSPID"), |
351dd634 | 525 | gBenchmark->GetCpuTime("PHOSPID")/nEvents)) ; |
88cb7938 | 526 | } |
adcca1e6 | 527 | if(fWrite) |
528 | Unload(); | |
88cb7938 | 529 | } |
530 | ||
35adb638 | 531 | //________________________________________________________________________ |
17323043 | 532 | Double_t AliPHOSPIDv1::GausF(Double_t x, Double_t y, Double_t * par) |
35adb638 | 533 | { |
c947e71a | 534 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
535 | //this method returns a density probability of this parameter, given by a gaussian | |
536 | //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b | |
2924941c | 537 | //Float_t xorg = x; |
538 | if (x > par[9]) x = par[9]; | |
539 | ||
540 | //Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ; | |
541 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; | |
35adb638 | 542 | Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ; |
543 | Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ; | |
c947e71a | 544 | |
2924941c | 545 | // if(xorg > 30) |
546 | // cout<<"En_in = "<<xorg<<"; En_out = "<<x<<"; cnt = "<<cnt | |
547 | // <<"; mean = "<<mean<<"; sigma = "<<sigma<<endl; | |
548 | ||
35adb638 | 549 | // Double_t arg = - (y-mean) * (y-mean) / (2*sigma*sigma) ; |
550 | // return cnt * TMath::Exp(arg) ; | |
c947e71a | 551 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 552 | return cnt*TMath::Gaus(y,mean,sigma); |
35adb638 | 553 | } |
554 | else | |
555 | return 0.; | |
c947e71a | 556 | |
35adb638 | 557 | } |
558 | //________________________________________________________________________ | |
17323043 | 559 | Double_t AliPHOSPIDv1::GausPol2(Double_t x, Double_t y, Double_t * par) |
35adb638 | 560 | { |
c947e71a | 561 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
562 | //this method returns a density probability of this parameter, given by a gaussian | |
563 | //function whose parameters depend with the energy like second order polinomial | |
564 | ||
35adb638 | 565 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; |
566 | Double_t mean = par[3] + par[4] * x + par[5] * x * x ; | |
567 | Double_t sigma = par[6] + par[7] * x + par[8] * x * x ; | |
568 | ||
c947e71a | 569 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 570 | return cnt*TMath::Gaus(y,mean,sigma); |
35adb638 | 571 | } |
572 | else | |
573 | return 0.; | |
c947e71a | 574 | |
575 | ||
576 | ||
35adb638 | 577 | } |
578 | ||
69183710 | 579 | //____________________________________________________________________________ |
e3817e5f | 580 | const TString AliPHOSPIDv1::GetFileNamePrincipal(TString particle) const |
148b2bba | 581 | { |
e3817e5f | 582 | //Get file name that contains the PCA for a particle ("photon or pi0") |
583 | particle.ToLower(); | |
584 | TString name; | |
351dd634 | 585 | if (particle=="photon") |
586 | name = fFileNamePrincipalPhoton ; | |
587 | else if (particle=="pi0" ) | |
588 | name = fFileNamePrincipalPi0 ; | |
589 | else | |
590 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", | |
591 | particle.Data())); | |
e3817e5f | 592 | return name; |
593 | } | |
bc0c084c | 594 | |
e3817e5f | 595 | //____________________________________________________________________________ |
fc7e2f43 | 596 | Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const |
e3817e5f | 597 | { |
598 | // Get the i-th parameter "Calibration" | |
599 | Float_t param = 0.; | |
351dd634 | 600 | if (i>2 || i<0) { |
601 | AliError(Form("Invalid parameter number: %d",i)); | |
602 | } else | |
e3817e5f | 603 | param = (*fParameters)(0,i); |
604 | return param; | |
605 | } | |
bc0c084c | 606 | |
88cb7938 | 607 | //____________________________________________________________________________ |
fc7e2f43 | 608 | Float_t AliPHOSPIDv1::GetCalibratedEnergy(Float_t e) const |
88cb7938 | 609 | { |
610 | // It calibrates Energy depending on the recpoint energy. | |
611 | // The energy of the reconstructed cluster is corrected with | |
612 | // the formula A + B* E + C* E^2, whose parameters where obtained | |
613 | // through the study of the reconstructed energy distribution of | |
614 | // monoenergetic photons. | |
615 | ||
616 | Float_t p[]={0.,0.,0.}; | |
617 | for (Int_t i=0; i<3; i++) p[i] = GetParameterCalibration(i); | |
618 | Float_t enerec = p[0] + p[1]*e + p[2]*e*e; | |
619 | return enerec ; | |
620 | ||
621 | } | |
622 | ||
e3817e5f | 623 | //____________________________________________________________________________ |
fc7e2f43 | 624 | Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const |
e3817e5f | 625 | { |
626 | // Get the i-th parameter "CPV-EMC distance" for the specified axis | |
627 | Float_t param = 0.; | |
351dd634 | 628 | if(i>2 || i<0) { |
629 | AliError(Form("Invalid parameter number: %d",i)); | |
630 | } else { | |
e3817e5f | 631 | axis.ToLower(); |
351dd634 | 632 | if (axis == "x") |
633 | param = (*fParameters)(1,i); | |
634 | else if (axis == "z") | |
635 | param = (*fParameters)(2,i); | |
636 | else { | |
637 | AliError(Form("Invalid axis name: %s",axis.Data())); | |
638 | } | |
e3817e5f | 639 | } |
640 | return param; | |
641 | } | |
642 | ||
643 | //____________________________________________________________________________ | |
fc7e2f43 | 644 | Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const |
e3817e5f | 645 | { |
88cb7938 | 646 | // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and |
647 | // Purity-Efficiency point | |
648 | ||
649 | axis.ToLower(); | |
650 | Float_t p[]={0.,0.,0.}; | |
651 | for (Int_t i=0; i<3; i++) p[i] = GetParameterCpv2Emc(i,axis); | |
652 | Float_t sig = p[0] + TMath::Exp(p[1] - p[2]*e); | |
653 | return sig; | |
e3817e5f | 654 | } |
655 | ||
88cb7938 | 656 | //____________________________________________________________________________ |
fc7e2f43 | 657 | Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const |
88cb7938 | 658 | { |
659 | // Calculates the parameter param of the ellipse | |
e3817e5f | 660 | |
661 | particle.ToLower(); | |
662 | param. ToLower(); | |
88cb7938 | 663 | Float_t p[4]={0.,0.,0.,0.}; |
664 | Float_t value = 0.0; | |
665 | for (Int_t i=0; i<4; i++) p[i] = GetParameterToCalculateEllipse(particle,param,i); | |
666 | if (particle == "photon") { | |
667 | if (param.Contains("a")) e = TMath::Min((Double_t)e,70.); | |
668 | else if (param.Contains("b")) e = TMath::Min((Double_t)e,70.); | |
669 | else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1); | |
670 | } | |
e3817e5f | 671 | |
443caba9 | 672 | if (particle == "photon") |
673 | value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3]; | |
674 | else if (particle == "pi0") | |
675 | value = p[0] + p[1]*e + p[2]*e*e; | |
676 | ||
88cb7938 | 677 | return value; |
e3817e5f | 678 | } |
679 | ||
680 | //_____________________________________________________________________________ | |
fc7e2f43 | 681 | Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (Int_t i) const |
e3817e5f | 682 | { |
683 | // Get the parameter "i" to calculate the boundary on the moment M2x | |
684 | // for photons at high p_T | |
685 | Float_t param = 0; | |
351dd634 | 686 | if (i>3 || i<0) { |
687 | AliError(Form("Wrong parameter number: %d\n",i)); | |
688 | } else | |
e3817e5f | 689 | param = (*fParameters)(14,i) ; |
690 | return param; | |
148b2bba | 691 | } |
e3817e5f | 692 | |
148b2bba | 693 | //____________________________________________________________________________ |
fc7e2f43 | 694 | Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const |
e3817e5f | 695 | { |
696 | // Get the parameter "i" to calculate the boundary on the moment M2x | |
697 | // for pi0 at high p_T | |
698 | Float_t param = 0; | |
351dd634 | 699 | if (i>2 || i<0) { |
700 | AliError(Form("Wrong parameter number: %d\n",i)); | |
701 | } else | |
e3817e5f | 702 | param = (*fParameters)(15,i) ; |
703 | return param; | |
704 | } | |
148b2bba | 705 | |
e3817e5f | 706 | //____________________________________________________________________________ |
fc7e2f43 | 707 | Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const |
e3817e5f | 708 | { |
88cb7938 | 709 | // Get TimeGate parameter depending on Purity-Efficiency i: |
710 | // i=0 - Low purity, i=1 - Medium purity, i=2 - High purity | |
711 | Float_t param = 0.; | |
351dd634 | 712 | if(i>2 || i<0) { |
713 | AliError(Form("Invalid Efficiency-Purity choice %d",i)); | |
714 | } else | |
88cb7938 | 715 | param = (*fParameters)(3,i) ; |
716 | return param; | |
e3817e5f | 717 | } |
718 | ||
148b2bba | 719 | //_____________________________________________________________________________ |
fc7e2f43 | 720 | Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const |
88cb7938 | 721 | { |
722 | // Get the parameter "i" that is needed to calculate the ellipse | |
723 | // parameter "param" for the particle "particle" ("photon" or "pi0") | |
724 | ||
e3817e5f | 725 | particle.ToLower(); |
726 | param. ToLower(); | |
88cb7938 | 727 | Int_t offset = -1; |
351dd634 | 728 | if (particle == "photon") |
729 | offset=0; | |
730 | else if (particle == "pi0") | |
731 | offset=5; | |
e3817e5f | 732 | else |
351dd634 | 733 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", |
734 | particle.Data())); | |
88cb7938 | 735 | |
736 | Int_t p= -1; | |
737 | Float_t par = 0; | |
e3817e5f | 738 | |
739 | if (param.Contains("a")) p=4+offset; | |
740 | else if(param.Contains("b")) p=5+offset; | |
741 | else if(param.Contains("c")) p=6+offset; | |
742 | else if(param.Contains("x0"))p=7+offset; | |
743 | else if(param.Contains("y0"))p=8+offset; | |
12022e83 | 744 | |
351dd634 | 745 | if (i>4 || i<0) { |
746 | AliError(Form("No parameter with index %d", i)) ; | |
747 | } else if (p==-1) { | |
748 | AliError(Form("No parameter with name %s", param.Data() )) ; | |
749 | } else | |
88cb7938 | 750 | par = (*fParameters)(p,i) ; |
751 | ||
752 | return par; | |
12022e83 | 753 | } |
754 | ||
12022e83 | 755 | |
756 | //____________________________________________________________________________ | |
8d4608b5 | 757 | Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Option_t * axis)const |
69183710 | 758 | { |
759 | // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
148b2bba | 760 | |
88cb7938 | 761 | const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ; |
69183710 | 762 | TVector3 vecEmc ; |
7acf6008 | 763 | TVector3 vecCpv ; |
148b2bba | 764 | if(cpv){ |
765 | emc->GetLocalPosition(vecEmc) ; | |
766 | cpv->GetLocalPosition(vecCpv) ; | |
2bb500e5 | 767 | |
148b2bba | 768 | if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ |
769 | // Correct to difference in CPV and EMC position due to different distance to center. | |
770 | // we assume, that particle moves from center | |
771 | Float_t dCPV = geom->GetIPtoOuterCoverDistance(); | |
772 | Float_t dEMC = geom->GetIPtoCrystalSurface() ; | |
773 | dEMC = dEMC / dCPV ; | |
774 | vecCpv = dEMC * vecCpv - vecEmc ; | |
e3817e5f | 775 | if (axis == "X") return vecCpv.X(); |
776 | if (axis == "Y") return vecCpv.Y(); | |
777 | if (axis == "Z") return vecCpv.Z(); | |
778 | if (axis == "R") return vecCpv.Mag(); | |
779 | } | |
148b2bba | 780 | return 100000000 ; |
781 | } | |
7acf6008 | 782 | return 100000000 ; |
69183710 | 783 | } |
bc0c084c | 784 | //____________________________________________________________________________ |
8d4608b5 | 785 | Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Int_t effPur, Float_t e) const |
bc0c084c | 786 | { |
c947e71a | 787 | //Calculates the pid bit for the CPV selection per each purity. |
e3817e5f | 788 | if(effPur>2 || effPur<0) |
351dd634 | 789 | AliError(Form("Invalid Efficiency-Purity choice %d",effPur)); |
bc0c084c | 790 | |
e3817e5f | 791 | Float_t sigX = GetCpv2EmcDistanceCut("X",e); |
792 | Float_t sigZ = GetCpv2EmcDistanceCut("Z",e); | |
bc0c084c | 793 | |
794 | Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X")); | |
795 | Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z")); | |
7fb46731 | 796 | //Info("GetCPVBit"," xdist %f, sigx %f, zdist %f, sigz %f",deltaX, sigX, deltaZ,sigZ) ; |
797 | ||
798 | //if(deltaX>sigX*(effPur+1)) | |
799 | //if((deltaX>sigX*(effPur+1)) || (deltaZ>sigZ*(effPur+1))) | |
800 | if((deltaX>sigX*(effPur+1)) && (deltaZ>sigZ*(effPur+1))) | |
bc0c084c | 801 | return 1;//Neutral |
802 | else | |
803 | return 0;//Charged | |
bc0c084c | 804 | } |
69183710 | 805 | |
6ad0bfa0 | 806 | //____________________________________________________________________________ |
fc7e2f43 | 807 | Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p, Int_t effPur, Float_t e)const |
148b2bba | 808 | { |
50739f15 | 809 | //Is the particle inside de PCA ellipse? |
581354c5 | 810 | |
e3817e5f | 811 | particle.ToLower(); |
812 | Int_t prinbit = 0 ; | |
7fb46731 | 813 | Float_t a = GetEllipseParameter(particle,"a" , e); |
814 | Float_t b = GetEllipseParameter(particle,"b" , e); | |
815 | Float_t c = GetEllipseParameter(particle,"c" , e); | |
e3817e5f | 816 | Float_t x0 = GetEllipseParameter(particle,"x0", e); |
817 | Float_t y0 = GetEllipseParameter(particle,"y0", e); | |
818 | ||
819 | Float_t r = TMath::Power((p[0] - x0)/a,2) + | |
820 | TMath::Power((p[1] - y0)/b,2) + | |
821 | c*(p[0] - x0)*(p[1] - y0)/(a*b) ; | |
50739f15 | 822 | //3 different ellipses defined |
e3817e5f | 823 | if((effPur==2) && (r<1./2.)) prinbit= 1; |
824 | if((effPur==1) && (r<2. )) prinbit= 1; | |
825 | if((effPur==0) && (r<9./2.)) prinbit= 1; | |
50739f15 | 826 | |
581354c5 | 827 | if(r<0) |
351dd634 | 828 | AliError("Negative square?") ; |
1f0e7ccd | 829 | |
830 | return prinbit; | |
148b2bba | 831 | |
148b2bba | 832 | } |
1f0e7ccd | 833 | //____________________________________________________________________________ |
fc7e2f43 | 834 | Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const |
1f0e7ccd | 835 | { |
e3817e5f | 836 | // Set bit for identified hard photons (E > 30 GeV) |
837 | // if the second moment M2x is below the boundary | |
838 | ||
839 | Float_t e = emc->GetEnergy(); | |
840 | if (e < 30.0) return 0; | |
841 | Float_t m2x = emc->GetM2x(); | |
842 | Float_t m2xBoundary = GetParameterPhotonBoundary(0) * | |
843 | TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/ | |
844 | TMath::Power(GetParameterPhotonBoundary(2),2)) + | |
845 | GetParameterPhotonBoundary(3); | |
351dd634 | 846 | AliDebug(1, Form("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f", |
847 | e,m2x,m2xBoundary)); | |
e3817e5f | 848 | if (m2x < m2xBoundary) |
849 | return 1;// A hard photon | |
850 | else | |
851 | return 0;// Not a hard photon | |
1f0e7ccd | 852 | } |
92f521a9 | 853 | |
e3817e5f | 854 | //____________________________________________________________________________ |
fc7e2f43 | 855 | Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) const |
e3817e5f | 856 | { |
857 | // Set bit for identified hard pi0 (E > 30 GeV) | |
858 | // if the second moment M2x is above the boundary | |
859 | ||
860 | Float_t e = emc->GetEnergy(); | |
861 | if (e < 30.0) return 0; | |
862 | Float_t m2x = emc->GetM2x(); | |
863 | Float_t m2xBoundary = GetParameterPi0Boundary(0) + | |
864 | e * GetParameterPi0Boundary(1); | |
351dd634 | 865 | AliDebug(1,Form("E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary)); |
e3817e5f | 866 | if (m2x > m2xBoundary) |
867 | return 1;// A hard pi0 | |
bc0c084c | 868 | else |
e3817e5f | 869 | return 0;// Not a hard pi0 |
f0a4c9e9 | 870 | } |
e3817e5f | 871 | |
872 | //____________________________________________________________________________ | |
8d4608b5 | 873 | TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * )const |
88cb7938 | 874 | { |
875 | // Calculates the momentum direction: | |
876 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
877 | // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints | |
878 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
879 | // in case 1. | |
f0a4c9e9 | 880 | |
88cb7938 | 881 | TVector3 dir(0,0,0) ; |
e8d02863 | 882 | TMatrixF dummy ; |
bf8f1fbd | 883 | |
fb7b51ad | 884 | emc->GetGlobalPosition(dir, dummy) ; |
e3817e5f | 885 | |
88cb7938 | 886 | //account correction to the position of IP |
887 | Float_t xo,yo,zo ; //Coordinates of the origin | |
7fb46731 | 888 | if(gAlice && gAlice->GetMCApp() && gAlice->Generator()){ |
adcca1e6 | 889 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; |
7fb46731 | 890 | } |
adcca1e6 | 891 | else{ |
892 | xo=yo=zo=0.; | |
893 | } | |
88cb7938 | 894 | TVector3 origin(xo,yo,zo); |
895 | dir = dir - origin ; | |
7fb46731 | 896 | dir.SetMag(1.) ; |
e3817e5f | 897 | |
88cb7938 | 898 | return dir ; |
7b7c1533 | 899 | } |
900 | ||
35adb638 | 901 | //________________________________________________________________________ |
17323043 | 902 | Double_t AliPHOSPIDv1::LandauF(Double_t x, Double_t y, Double_t * par) |
35adb638 | 903 | { |
c947e71a | 904 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
905 | //this method returns a density probability of this parameter, given by a landau | |
906 | //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b | |
907 | ||
2924941c | 908 | if (x > par[9]) x = par[9]; |
909 | ||
910 | //Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ; | |
911 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; | |
35adb638 | 912 | Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ; |
913 | Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ; | |
c947e71a | 914 | |
915 | if(TMath::Abs(sigma) > 1.e-10){ | |
acb5beb7 | 916 | return cnt*TMath::Landau(y,mean,sigma); |
35adb638 | 917 | } |
918 | else | |
919 | return 0.; | |
920 | ||
921 | } | |
922 | //________________________________________________________________________ | |
17323043 | 923 | Double_t AliPHOSPIDv1::LandauPol2(Double_t x, Double_t y, Double_t * par) |
35adb638 | 924 | { |
c947e71a | 925 | |
926 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), | |
927 | //this method returns a density probability of this parameter, given by a landau | |
928 | //function whose parameters depend with the energy like second order polinomial | |
929 | ||
35adb638 | 930 | Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ; |
c947e71a | 931 | Double_t mean = par[5] * (x*x) + par[4] * x + par[3] ; |
932 | Double_t sigma = par[8] * (x*x) + par[7] * x + par[6] ; | |
35adb638 | 933 | |
c947e71a | 934 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 935 | return cnt*TMath::Landau(y,mean,sigma); |
35adb638 | 936 | } |
937 | else | |
938 | return 0.; | |
c947e71a | 939 | |
940 | ||
35adb638 | 941 | } |
942 | // //________________________________________________________________________ | |
943 | // Double_t AliPHOSPIDv1::ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl) | |
944 | // { | |
945 | // Double_t cnt = 0.0 ; | |
946 | // Double_t mean = 0.0 ; | |
947 | // Double_t sigma = 0.0 ; | |
948 | // Double_t arg = 0.0 ; | |
949 | // if (y < parl[4] / (x*x) + parl[5] / x + parl[3]){ | |
950 | // cnt = parg[1] / (x*x) + parg[2] / x + parg[0] ; | |
951 | // mean = parg[4] / (x*x) + parg[5] / x + parg[3] ; | |
952 | // sigma = parg[7] / (x*x) + parg[8] / x + parg[6] ; | |
953 | // TF1 * f = new TF1("gaus","gaus",0.,100.); | |
954 | // f->SetParameters(cnt,mean,sigma); | |
955 | // arg = f->Eval(y) ; | |
956 | // } | |
957 | // else{ | |
958 | // cnt = parl[1] / (x*x) + parl[2] / x + parl[0] ; | |
959 | // mean = parl[4] / (x*x) + parl[5] / x + parl[3] ; | |
960 | // sigma = parl[7] / (x*x) + parl[8] / x + parl[6] ; | |
961 | // TF1 * f = new TF1("landau","landau",0.,100.); | |
962 | // f->SetParameters(cnt,mean,sigma); | |
963 | // arg = f->Eval(y) ; | |
964 | // } | |
965 | // // Double_t mean = par[3] + par[4] * x + par[5] * x * x ; | |
966 | // // Double_t sigma = par[6] + par[7] * x + par[8] * x * x ; | |
967 | ||
968 | // //Double_t arg = -(y-mean)*(y-mean)/(2*sigma*sigma) ; | |
969 | // //return cnt * TMath::Exp(arg) ; | |
970 | ||
971 | // return arg; | |
972 | ||
973 | // } | |
2cc71c1e | 974 | //____________________________________________________________________________ |
975 | void AliPHOSPIDv1::MakePID() | |
976 | { | |
977 | // construct the PID weight from a Bayesian Method | |
c947e71a | 978 | |
304864ab | 979 | const Int_t kSPECIES = AliPID::kSPECIESN ; |
7fb46731 | 980 | |
981 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
982 | ||
983 | Int_t nparticles = gime->RecParticles()->GetEntriesFast() ; | |
984 | ||
7fb46731 | 985 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
986 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
987 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
988 | if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) { | |
989 | AliFatal("RecPoints or TrackSegments not found !") ; | |
990 | } | |
991 | TIter next(trackSegments) ; | |
992 | AliPHOSTrackSegment * ts ; | |
993 | Int_t index = 0 ; | |
994 | ||
35adb638 | 995 | Double_t * stof[kSPECIES] ; |
996 | Double_t * sdp [kSPECIES] ; | |
997 | Double_t * scpv[kSPECIES] ; | |
fb7b51ad | 998 | Double_t * sw [kSPECIES] ; |
35adb638 | 999 | //Info("MakePID","Begin MakePID"); |
1000 | ||
1001 | for (Int_t i =0; i< kSPECIES; i++){ | |
1002 | stof[i] = new Double_t[nparticles] ; | |
1003 | sdp [i] = new Double_t[nparticles] ; | |
1004 | scpv[i] = new Double_t[nparticles] ; | |
fb7b51ad | 1005 | sw [i] = new Double_t[nparticles] ; |
35adb638 | 1006 | } |
1007 | ||
7fb46731 | 1008 | |
1009 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { | |
1010 | ||
1011 | //cout<<">>>>>> Bayesian Index "<<index<<endl; | |
1012 | ||
1013 | AliPHOSEmcRecPoint * emc = 0 ; | |
1014 | if(ts->GetEmcIndex()>=0) | |
1015 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; | |
1016 | ||
1017 | AliPHOSCpvRecPoint * cpv = 0 ; | |
1018 | if(ts->GetCpvIndex()>=0) | |
1019 | cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; | |
cc1fe362 | 1020 | |
7fb46731 | 1021 | // Int_t track = 0 ; |
1022 | // track = ts->GetTrackIndex() ; //TPC tracks ? | |
cc1fe362 | 1023 | |
7fb46731 | 1024 | if (!emc) { |
1025 | AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ; | |
1026 | } | |
c947e71a | 1027 | |
2924941c | 1028 | |
7fb46731 | 1029 | // ############Tof############################# |
c947e71a | 1030 | |
7fb46731 | 1031 | // Info("MakePID", "TOF"); |
fb7b51ad | 1032 | Float_t en = emc->GetEnergy(); |
7fb46731 | 1033 | Double_t time = emc->GetTime() ; |
1034 | // cout<<">>>>>>>Energy "<<en<<"Time "<<time<<endl; | |
fb7b51ad | 1035 | |
35adb638 | 1036 | // now get the signals probability |
1037 | // s(pid) in the Bayesian formulation | |
cc1fe362 | 1038 | |
304864ab | 1039 | stof[AliPID::kPhoton][index] = 1.; |
1040 | stof[AliPID::kElectron][index] = 1.; | |
304864ab | 1041 | stof[AliPID::kEleCon][index] = 1.; |
7fb46731 | 1042 | //We assing the same prob to charged hadrons, sum is 1 |
1043 | stof[AliPID::kPion][index] = 1./3.; | |
1044 | stof[AliPID::kKaon][index] = 1./3.; | |
1045 | stof[AliPID::kProton][index] = 1./3.; | |
1046 | //We assing the same prob to neutral hadrons, sum is 1 | |
1047 | stof[AliPID::kNeutron][index] = 1./2.; | |
1048 | stof[AliPID::kKaon0][index] = 1./2.; | |
304864ab | 1049 | stof[AliPID::kMuon][index] = 1.; |
2924941c | 1050 | |
1051 | if(en < fTOFEnThreshold) { | |
7fb46731 | 1052 | |
1053 | Double_t pTofPion = fTFpiong ->Eval(time) ; //gaus distribution | |
1054 | Double_t pTofKaon = 0; | |
1055 | ||
35adb638 | 1056 | if(time < fTkaonl[1]) |
fb7b51ad | 1057 | pTofKaon = fTFkaong ->Eval(time) ; //gaus distribution |
35adb638 | 1058 | else |
fb7b51ad | 1059 | pTofKaon = fTFkaonl ->Eval(time) ; //landau distribution |
7fb46731 | 1060 | |
1061 | Double_t pTofNucleon = 0; | |
1062 | ||
35adb638 | 1063 | if(time < fThhadronl[1]) |
7fb46731 | 1064 | pTofNucleon = fTFhhadrong ->Eval(time) ; //gaus distribution |
35adb638 | 1065 | else |
7fb46731 | 1066 | pTofNucleon = fTFhhadronl ->Eval(time) ; //landau distribution |
7fb46731 | 1067 | //We assing the same prob to neutral hadrons, sum is the average prob |
fb7b51ad | 1068 | Double_t pTofNeHadron = (pTofKaon + pTofNucleon)/2. ; |
1069 | //We assing the same prob to charged hadrons, sum is the average prob | |
1070 | Double_t pTofChHadron = (pTofPion + pTofKaon + pTofNucleon)/3. ; | |
7fb46731 | 1071 | |
fb7b51ad | 1072 | stof[AliPID::kPhoton][index] = fTFphoton ->Eval(time) ; |
1073 | //gaus distribution | |
1074 | stof[AliPID::kEleCon][index] = stof[AliPID::kPhoton][index] ; | |
1075 | //a conversion electron has the photon ToF | |
304864ab | 1076 | stof[AliPID::kMuon][index] = stof[AliPID::kPhoton][index] ; |
7fb46731 | 1077 | |
fb7b51ad | 1078 | stof[AliPID::kElectron][index] = pTofPion ; |
7fb46731 | 1079 | |
1080 | stof[AliPID::kPion][index] = pTofChHadron ; | |
1081 | stof[AliPID::kKaon][index] = pTofChHadron ; | |
1082 | stof[AliPID::kProton][index] = pTofChHadron ; | |
1083 | ||
1084 | stof[AliPID::kKaon0][index] = pTofNeHadron ; | |
1085 | stof[AliPID::kNeutron][index] = pTofNeHadron ; | |
cc1fe362 | 1086 | } |
c947e71a | 1087 | |
1088 | // Info("MakePID", "Dispersion"); | |
cc1fe362 | 1089 | |
7fb46731 | 1090 | // ###########Shower shape: Dispersion#################### |
35adb638 | 1091 | Float_t dispersion = emc->GetDispersion(); |
1092 | //dispersion is not well defined if the cluster is only in few crystals | |
cc1fe362 | 1093 | |
304864ab | 1094 | sdp[AliPID::kPhoton][index] = 1. ; |
1095 | sdp[AliPID::kElectron][index] = 1. ; | |
1096 | sdp[AliPID::kPion][index] = 1. ; | |
1097 | sdp[AliPID::kKaon][index] = 1. ; | |
1098 | sdp[AliPID::kProton][index] = 1. ; | |
1099 | sdp[AliPID::kNeutron][index] = 1. ; | |
1100 | sdp[AliPID::kEleCon][index] = 1. ; | |
1101 | sdp[AliPID::kKaon0][index] = 1. ; | |
1102 | sdp[AliPID::kMuon][index] = 1. ; | |
c947e71a | 1103 | |
2924941c | 1104 | if(en > fDispEnThreshold && emc->GetMultiplicity() > fDispMultThreshold){ |
7fb46731 | 1105 | sdp[AliPID::kPhoton][index] = GausF(en , dispersion, fDphoton) ; |
304864ab | 1106 | sdp[AliPID::kElectron][index] = sdp[AliPID::kPhoton][index] ; |
1107 | sdp[AliPID::kPion][index] = LandauF(en , dispersion, fDhadron ) ; | |
1108 | sdp[AliPID::kKaon][index] = sdp[AliPID::kPion][index] ; | |
1109 | sdp[AliPID::kProton][index] = sdp[AliPID::kPion][index] ; | |
1110 | sdp[AliPID::kNeutron][index] = sdp[AliPID::kPion][index] ; | |
1111 | sdp[AliPID::kEleCon][index] = sdp[AliPID::kPhoton][index]; | |
1112 | sdp[AliPID::kKaon0][index] = sdp[AliPID::kPion][index] ; | |
fb7b51ad | 1113 | sdp[AliPID::kMuon][index] = fDFmuon ->Eval(dispersion) ; |
1114 | //landau distribution | |
35adb638 | 1115 | } |
cc1fe362 | 1116 | |
7fb46731 | 1117 | // Info("MakePID","multiplicity %d, dispersion %f", emc->GetMultiplicity(), dispersion); |
1118 | // Info("MakePID","ss: photon %f, hadron %f ", sdp[AliPID::kPhoton][index], sdp[AliPID::kPion][index]); | |
c947e71a | 1119 | // cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<", dispersion "<< dispersion<<endl ; |
304864ab | 1120 | // cout<<"<<<<<ss: photon "<<sdp[AliPID::kPhoton][index]<<", hadron "<<sdp[AliPID::kPion][index]<<endl; |
c947e71a | 1121 | |
7fb46731 | 1122 | //########## CPV-EMC Distance####################### |
1123 | // Info("MakePID", "Distance"); | |
fb7b51ad | 1124 | |
7fb46731 | 1125 | Float_t x = TMath::Abs(GetDistance(emc, cpv, "X")) ; |
1126 | Float_t z = GetDistance(emc, cpv, "Z") ; | |
fb7b51ad | 1127 | |
7fb46731 | 1128 | Double_t pcpv = 0 ; |
c947e71a | 1129 | Double_t pcpvneutral = 0. ; |
7fb46731 | 1130 | |
1131 | Double_t elprobx = GausF(en , x, fXelectron) ; | |
1132 | Double_t elprobz = GausF(en , z, fZelectron) ; | |
1133 | Double_t chprobx = GausF(en , x, fXcharged) ; | |
1134 | Double_t chprobz = GausF(en , z, fZcharged) ; | |
c947e71a | 1135 | Double_t pcpvelectron = elprobx * elprobz; |
1136 | Double_t pcpvcharged = chprobx * chprobz; | |
7fb46731 | 1137 | |
1138 | // cout<<">>>>energy "<<en<<endl; | |
c947e71a | 1139 | // cout<<">>>>electron : x "<<x<<" xprob "<<elprobx<<" z "<<z<<" zprob "<<elprobz<<endl; |
1140 | // cout<<">>>>hadron : x "<<x<<" xprob "<<chprobx<<" z "<<z<<" zprob "<<chprobz<<endl; | |
1141 | // cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl; | |
1142 | ||
2924941c | 1143 | // Is neutral or charged? |
35adb638 | 1144 | if(pcpvelectron >= pcpvcharged) |
1145 | pcpv = pcpvelectron ; | |
1146 | else | |
1147 | pcpv = pcpvcharged ; | |
1148 | ||
fb7b51ad | 1149 | if(pcpv < fChargedNeutralThreshold) |
35adb638 | 1150 | { |
1151 | pcpvneutral = 1. ; | |
1152 | pcpvcharged = 0. ; | |
1153 | pcpvelectron = 0. ; | |
1154 | } | |
c947e71a | 1155 | // else |
1156 | // cout<<">>>>>>>>>>>CHARGED>>>>>>>>>>>"<<endl; | |
35adb638 | 1157 | |
304864ab | 1158 | scpv[AliPID::kPion][index] = pcpvcharged ; |
1159 | scpv[AliPID::kKaon][index] = pcpvcharged ; | |
1160 | scpv[AliPID::kProton][index] = pcpvcharged ; | |
7fb46731 | 1161 | |
1162 | scpv[AliPID::kMuon][index] = pcpvelectron ; | |
304864ab | 1163 | scpv[AliPID::kElectron][index] = pcpvelectron ; |
304864ab | 1164 | scpv[AliPID::kEleCon][index] = pcpvelectron ; |
7fb46731 | 1165 | |
1166 | scpv[AliPID::kPhoton][index] = pcpvneutral ; | |
1167 | scpv[AliPID::kNeutron][index] = pcpvneutral ; | |
304864ab | 1168 | scpv[AliPID::kKaon0][index] = pcpvneutral ; |
7fb46731 | 1169 | |
35adb638 | 1170 | |
1171 | // Info("MakePID", "CPV passed"); | |
c947e71a | 1172 | |
7fb46731 | 1173 | //############## Pi0 ############################# |
304864ab | 1174 | stof[AliPID::kPi0][index] = 0. ; |
1175 | scpv[AliPID::kPi0][index] = 0. ; | |
1176 | sdp [AliPID::kPi0][index] = 0. ; | |
c947e71a | 1177 | |
35adb638 | 1178 | if(en > 30.){ |
1179 | // pi0 are detected via decay photon | |
2924941c | 1180 | stof[AliPID::kPi0][index] = stof[AliPID::kPhoton][index]; |
304864ab | 1181 | scpv[AliPID::kPi0][index] = pcpvneutral ; |
2924941c | 1182 | if(emc->GetMultiplicity() > fDispMultThreshold) |
1183 | sdp [AliPID::kPi0][index] = GausF(en , dispersion, fDpi0) ; | |
1184 | //sdp [AliPID::kPi0][index] = GausPol2(en , dispersion, fDpi0) ; | |
1185 | // cout<<"E = "<<en<<" GeV; disp = "<<dispersion<<"; mult = " | |
1186 | // <<emc->GetMultiplicity()<<endl; | |
1187 | // cout<<"PDF: photon = "<<sdp [AliPID::kPhoton][index]<<"; pi0 = " | |
1188 | // <<sdp [AliPID::kPi0][index]<<endl; | |
35adb638 | 1189 | } |
1190 | ||
2924941c | 1191 | |
7fb46731 | 1192 | |
2924941c | 1193 | |
7fb46731 | 1194 | //############## muon ############################# |
1195 | ||
35adb638 | 1196 | if(en > 0.5){ |
1197 | //Muons deposit few energy | |
304864ab | 1198 | scpv[AliPID::kMuon][index] = 0 ; |
1199 | stof[AliPID::kMuon][index] = 0 ; | |
1200 | sdp [AliPID::kMuon][index] = 0 ; | |
c947e71a | 1201 | } |
1202 | ||
fb7b51ad | 1203 | //Weight to apply to hadrons due to energy reconstruction |
1204 | ||
1205 | Float_t weight = fERecWeight ->Eval(en) ; | |
1206 | ||
1207 | sw[AliPID::kPhoton][index] = 1. ; | |
1208 | sw[AliPID::kElectron][index] = 1. ; | |
1209 | sw[AliPID::kPion][index] = weight ; | |
1210 | sw[AliPID::kKaon][index] = weight ; | |
1211 | sw[AliPID::kProton][index] = weight ; | |
1212 | sw[AliPID::kNeutron][index] = weight ; | |
1213 | sw[AliPID::kEleCon][index] = 1. ; | |
1214 | sw[AliPID::kKaon0][index] = weight ; | |
1215 | sw[AliPID::kMuon][index] = weight ; | |
1216 | sw[AliPID::kPi0][index] = 1. ; | |
1217 | ||
7fb46731 | 1218 | // if(en > 0.5){ |
1219 | // cout<<"######################################################"<<endl; | |
1220 | // //cout<<"MakePID: energy "<<en<<", tof "<<time<<", distance "<<distance<<", dispersion "<<dispersion<<endl ; | |
1221 | // cout<<"MakePID: energy "<<en<<", tof "<<time<<", dispersion "<<dispersion<<", x "<<x<<", z "<<z<<endl ; | |
1222 | // cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<endl; | |
1223 | // cout<<">>>>electron : xprob "<<elprobx<<" zprob "<<elprobz<<endl; | |
1224 | // cout<<">>>>hadron : xprob "<<chprobx<<" zprob "<<chprobz<<endl; | |
1225 | // cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl; | |
c947e71a | 1226 | |
2924941c | 1227 | // cout<<"Photon , pid "<< fInitPID[AliPID::kPhoton]<<" tof "<<stof[AliPID::kPhoton][index] |
1228 | // <<", cpv "<<scpv[AliPID::kPhoton][index]<<", ss "<<sdp[AliPID::kPhoton][index]<<endl; | |
7fb46731 | 1229 | // cout<<"EleCon , pid "<< fInitPID[AliPID::kEleCon]<<", tof "<<stof[AliPID::kEleCon][index] |
1230 | // <<", cpv "<<scpv[AliPID::kEleCon][index]<<" ss "<<sdp[AliPID::kEleCon][index]<<endl; | |
1231 | // cout<<"Electron , pid "<< fInitPID[AliPID::kElectron]<<", tof "<<stof[AliPID::kElectron][index] | |
1232 | // <<", cpv "<<scpv[AliPID::kElectron][index]<<" ss "<<sdp[AliPID::kElectron][index]<<endl; | |
1233 | // cout<<"Muon , pid "<< fInitPID[AliPID::kMuon]<<", tof "<<stof[AliPID::kMuon][index] | |
1234 | // <<", cpv "<<scpv[AliPID::kMuon][index]<<" ss "<<sdp[AliPID::kMuon][index]<<endl; | |
2924941c | 1235 | // cout<<"Pi0 , pid "<< fInitPID[AliPID::kPi0]<<", tof "<<stof[AliPID::kPi0][index] |
1236 | // <<", cpv "<<scpv[AliPID::kPi0][index]<<" ss "<<sdp[AliPID::kPi0][index]<<endl; | |
7fb46731 | 1237 | // cout<<"Pion , pid "<< fInitPID[AliPID::kPion]<<", tof "<<stof[AliPID::kPion][index] |
1238 | // <<", cpv "<<scpv[AliPID::kPion][index]<<" ss "<<sdp[AliPID::kPion][index]<<endl; | |
1239 | // cout<<"Kaon0 , pid "<< fInitPID[AliPID::kKaon0]<<", tof "<<stof[AliPID::kKaon0][index] | |
1240 | // <<", cpv "<<scpv[AliPID::kKaon0][index]<<" ss "<<sdp[AliPID::kKaon0][index]<<endl; | |
1241 | // cout<<"Kaon , pid "<< fInitPID[AliPID::kKaon]<<", tof "<<stof[AliPID::kKaon][index] | |
1242 | // <<", cpv "<<scpv[AliPID::kKaon][index]<<" ss "<<sdp[AliPID::kKaon][index]<<endl; | |
1243 | // cout<<"Neutron , pid "<< fInitPID[AliPID::kNeutron]<<", tof "<<stof[AliPID::kNeutron][index] | |
1244 | // <<", cpv "<<scpv[AliPID::kNeutron][index]<<" ss "<<sdp[AliPID::kNeutron][index]<<endl; | |
1245 | // cout<<"Proton , pid "<< fInitPID[AliPID::kProton]<<", tof "<<stof[AliPID::kProton][index] | |
1246 | // <<", cpv "<<scpv[AliPID::kProton][index]<<" ss "<<sdp[AliPID::kProton][index]<<endl; | |
1247 | // cout<<"######################################################"<<endl; | |
1248 | // } | |
1249 | index++; | |
cc1fe362 | 1250 | } |
35adb638 | 1251 | |
1252 | //for (index = 0 ; index < kSPECIES ; index++) | |
1253 | // pid[index] /= nparticles ; | |
1254 | ||
7fb46731 | 1255 | |
35adb638 | 1256 | // Info("MakePID", "Total Probability calculation"); |
1257 | ||
cc1fe362 | 1258 | for(index = 0 ; index < nparticles ; index ++) { |
2924941c | 1259 | |
1260 | AliPHOSRecParticle * recpar = gime->RecParticle(index) ; | |
1261 | ||
1262 | //Conversion electron? | |
1263 | ||
1264 | if(recpar->IsEleCon()){ | |
1265 | fInitPID[AliPID::kEleCon] = 1. ; | |
1266 | fInitPID[AliPID::kPhoton] = 0. ; | |
1267 | fInitPID[AliPID::kElectron] = 0. ; | |
1268 | } | |
1269 | else{ | |
1270 | fInitPID[AliPID::kEleCon] = 0. ; | |
1271 | fInitPID[AliPID::kPhoton] = 1. ; | |
1272 | fInitPID[AliPID::kElectron] = 1. ; | |
1273 | } | |
1274 | // fInitPID[AliPID::kEleCon] = 0. ; | |
1275 | ||
1276 | ||
cc1fe362 | 1277 | // calculates the Bayesian weight |
7fb46731 | 1278 | |
cc1fe362 | 1279 | Int_t jndex ; |
1280 | Double_t wn = 0.0 ; | |
1281 | for (jndex = 0 ; jndex < kSPECIES ; jndex++) | |
2924941c | 1282 | wn += stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * |
1283 | sw[jndex][index] * fInitPID[jndex] ; | |
1284 | ||
7fb46731 | 1285 | // cout<<"*************wn "<<wn<<endl; |
e74ea0e9 | 1286 | if (TMath::Abs(wn)>0) |
1287 | for (jndex = 0 ; jndex < kSPECIES ; jndex++) { | |
35adb638 | 1288 | //cout<<"jndex "<<jndex<<" wn "<<wn<<" SetPID * wn" |
1289 | //<<stof[jndex][index] * sdp[jndex][index] * pid[jndex] << endl; | |
1290 | //cout<<" tof "<<stof[jndex][index] << " disp " <<sdp[jndex][index] << " pid "<< fInitPID[jndex] << endl; | |
2924941c | 1291 | // if(jndex == AliPID::kPi0 || jndex == AliPID::kPhoton){ |
1292 | // cout<<"Particle "<<jndex<<" final prob * wn " | |
1293 | // <<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * | |
1294 | // fInitPID[jndex] <<" wn "<< wn<<endl; | |
1295 | // cout<<"pid "<< fInitPID[jndex]<<", tof "<<stof[jndex][index] | |
1296 | // <<", cpv "<<scpv[jndex][index]<<" ss "<<sdp[jndex][index]<<endl; | |
1297 | // } | |
1298 | recpar->SetPID(jndex, stof[jndex][index] * sdp[jndex][index] * | |
1299 | sw[jndex][index] * scpv[jndex][index] * | |
1300 | fInitPID[jndex] / wn) ; | |
e74ea0e9 | 1301 | } |
2cc71c1e | 1302 | } |
35adb638 | 1303 | // Info("MakePID", "Delete"); |
1304 | ||
2924941c | 1305 | for (Int_t i =0; i< kSPECIES; i++){ |
1306 | delete [] stof[i]; | |
1307 | delete [] sdp [i]; | |
1308 | delete [] scpv[i]; | |
1309 | delete [] sw [i]; | |
1310 | } | |
35adb638 | 1311 | // Info("MakePID","End MakePID"); |
2cc71c1e | 1312 | } |
1313 | ||
7acf6008 | 1314 | //____________________________________________________________________________ |
e3817e5f | 1315 | void AliPHOSPIDv1::MakeRecParticles() |
1316 | { | |
b2a60966 | 1317 | // Makes a RecParticle out of a TrackSegment |
148b2bba | 1318 | |
88cb7938 | 1319 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
fbf811ec | 1320 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
1321 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
1322 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
148b2bba | 1323 | if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) { |
351dd634 | 1324 | AliFatal("RecPoints or TrackSegments not found !") ; |
148b2bba | 1325 | } |
fbf811ec | 1326 | TClonesArray * recParticles = gime->RecParticles() ; |
01a599c9 | 1327 | recParticles->Clear(); |
148b2bba | 1328 | |
7b7c1533 | 1329 | TIter next(trackSegments) ; |
7acf6008 | 1330 | AliPHOSTrackSegment * ts ; |
6ad0bfa0 | 1331 | Int_t index = 0 ; |
09fc14a0 | 1332 | AliPHOSRecParticle * rp ; |
7acf6008 | 1333 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { |
7fb46731 | 1334 | // cout<<">>>>>>>>>>>>>>>PCA Index "<<index<<endl; |
7b7c1533 | 1335 | new( (*recParticles)[index] ) AliPHOSRecParticle() ; |
1336 | rp = (AliPHOSRecParticle *)recParticles->At(index) ; | |
f0a4c9e9 | 1337 | rp->SetTrackSegment(index) ; |
9688c1dd | 1338 | rp->SetIndexInList(index) ; |
148b2bba | 1339 | |
7acf6008 | 1340 | AliPHOSEmcRecPoint * emc = 0 ; |
1341 | if(ts->GetEmcIndex()>=0) | |
7b7c1533 | 1342 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; |
fad3e5b9 | 1343 | |
8d4608b5 | 1344 | AliPHOSCpvRecPoint * cpv = 0 ; |
7acf6008 | 1345 | if(ts->GetCpvIndex()>=0) |
8d4608b5 | 1346 | cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; |
fad3e5b9 | 1347 | |
bd76890a | 1348 | Int_t track = 0 ; |
1349 | track = ts->GetTrackIndex() ; | |
1350 | ||
148b2bba | 1351 | // Now set type (reconstructed) of the particle |
1352 | ||
1353 | // Choose the cluster energy range | |
9fa5f1d0 | 1354 | |
fbf811ec | 1355 | if (!emc) { |
351dd634 | 1356 | AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ; |
fbf811ec | 1357 | } |
50739f15 | 1358 | |
e3817e5f | 1359 | Float_t e = emc->GetEnergy() ; |
bc0c084c | 1360 | |
6f969528 | 1361 | Float_t lambda[2] ; |
1362 | emc->GetElipsAxis(lambda) ; | |
50739f15 | 1363 | |
1364 | if((lambda[0]>0.01) && (lambda[1]>0.01)){ | |
1365 | // Looking PCA. Define and calculate the data (X), | |
bc0c084c | 1366 | // introduce in the function X2P that gives the components (P). |
1367 | ||
c947e71a | 1368 | Float_t spher = 0. ; |
1369 | Float_t emaxdtotal = 0. ; | |
50739f15 | 1370 | |
bc0c084c | 1371 | if((lambda[0]+lambda[1])!=0) |
e4df4b30 | 1372 | spher=TMath::Abs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]); |
50739f15 | 1373 | |
c947e71a | 1374 | emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy(); |
50739f15 | 1375 | |
1376 | fX[0] = lambda[0] ; | |
1377 | fX[1] = lambda[1] ; | |
1378 | fX[2] = emc->GetDispersion() ; | |
c947e71a | 1379 | fX[3] = spher ; |
50739f15 | 1380 | fX[4] = emc->GetMultiplicity() ; |
c947e71a | 1381 | fX[5] = emaxdtotal ; |
50739f15 | 1382 | fX[6] = emc->GetCoreEnergy() ; |
1383 | ||
e3817e5f | 1384 | fPrincipalPhoton->X2P(fX,fPPhoton); |
1385 | fPrincipalPi0 ->X2P(fX,fPPi0); | |
1f0e7ccd | 1386 | |
50739f15 | 1387 | } |
1388 | else{ | |
e3817e5f | 1389 | fPPhoton[0]=-100.0; //We do not accept clusters with |
1390 | fPPhoton[1]=-100.0; //one cell as a photon-like | |
1391 | fPPi0[0] =-100.0; | |
1392 | fPPi0[1] =-100.0; | |
50739f15 | 1393 | } |
1394 | ||
2cc71c1e | 1395 | Float_t time = emc->GetTime() ; |
1396 | rp->SetTof(time) ; | |
9fa5f1d0 | 1397 | |
bc0c084c | 1398 | // Loop of Efficiency-Purity (the 3 points of purity or efficiency |
1399 | // are taken into account to set the particle identification) | |
e3817e5f | 1400 | for(Int_t effPur = 0; effPur < 3 ; effPur++){ |
50739f15 | 1401 | |
bc0c084c | 1402 | // Looking at the CPV detector. If RCPV greater than CpvEmcDistance, |
1403 | // 1st,2nd or 3rd bit (depending on the efficiency-purity point ) | |
1404 | // is set to 1 | |
35adb638 | 1405 | if(GetCPVBit(emc, cpv, effPur,e) == 1 ){ |
e3817e5f | 1406 | rp->SetPIDBit(effPur) ; |
35adb638 | 1407 | //cout<<"CPV bit "<<effPur<<endl; |
1408 | } | |
50739f15 | 1409 | // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th |
1410 | // bit (depending on the efficiency-purity point )is set to 1 | |
2cc71c1e | 1411 | if(time< (*fParameters)(3,effPur)) |
e3817e5f | 1412 | rp->SetPIDBit(effPur+3) ; |
2cc71c1e | 1413 | |
e3817e5f | 1414 | //Photon PCA |
50739f15 | 1415 | //If we are inside the ellipse, 7th, 8th or 9th |
1416 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 1417 | if(GetPrincipalBit("photon",fPPhoton,effPur,e) == 1) |
1418 | rp->SetPIDBit(effPur+6) ; | |
1f0e7ccd | 1419 | |
e3817e5f | 1420 | //Pi0 PCA |
1f0e7ccd | 1421 | //If we are inside the ellipse, 10th, 11th or 12th |
1422 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 1423 | if(GetPrincipalBit("pi0" ,fPPi0 ,effPur,e) == 1) |
1424 | rp->SetPIDBit(effPur+9) ; | |
f0a4c9e9 | 1425 | } |
e3817e5f | 1426 | if(GetHardPhotonBit(emc)) |
1427 | rp->SetPIDBit(12) ; | |
1428 | if(GetHardPi0Bit (emc)) | |
1429 | rp->SetPIDBit(13) ; | |
1f0e7ccd | 1430 | |
bd76890a | 1431 | if(track >= 0) |
1432 | rp->SetPIDBit(14) ; | |
1433 | ||
9fa5f1d0 | 1434 | //Set momentum, energy and other parameters |
50739f15 | 1435 | Float_t encal = GetCalibratedEnergy(e); |
9fa5f1d0 | 1436 | TVector3 dir = GetMomentumDirection(emc,cpv) ; |
1437 | dir.SetMag(encal) ; | |
1438 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),encal) ; | |
1439 | rp->SetCalcMass(0); | |
e0ed2e49 | 1440 | rp->Name(); //If photon sets the particle pdg name to gamma |
e747b8da | 1441 | rp->SetProductionVertex(0,0,0,0); |
1442 | rp->SetFirstMother(-1); | |
1443 | rp->SetLastMother(-1); | |
1444 | rp->SetFirstDaughter(-1); | |
1445 | rp->SetLastDaughter(-1); | |
1446 | rp->SetPolarisation(0,0,0); | |
d956e9b7 | 1447 | //Set the position in global coordinate system from the RecPoint |
1448 | AliPHOSGeometry * geom = gime->PHOSGeometry() ; | |
1449 | AliPHOSTrackSegment * ts = gime->TrackSegment(rp->GetPHOSTSIndex()) ; | |
1450 | AliPHOSEmcRecPoint * erp = gime->EmcRecPoint(ts->GetEmcIndex()) ; | |
1451 | TVector3 pos ; | |
1452 | geom->GetGlobal(erp, pos) ; | |
1453 | rp->SetPos(pos); | |
6ad0bfa0 | 1454 | index++ ; |
1455 | } | |
6ad0bfa0 | 1456 | } |
e3817e5f | 1457 | |
09fc14a0 | 1458 | //____________________________________________________________________________ |
702ab87e | 1459 | void AliPHOSPIDv1::Print(const Option_t *) const |
09fc14a0 | 1460 | { |
b2a60966 | 1461 | // Print the parameters used for the particle type identification |
bc0c084c | 1462 | |
351dd634 | 1463 | AliInfo("=============== AliPHOSPIDv1 ================") ; |
88cb7938 | 1464 | printf("Making PID\n") ; |
1465 | printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileNamePrincipalPhoton.Data() ) ; | |
1466 | printf(" Name of parameters file %s\n", fFileNameParameters.Data() ) ; | |
1467 | printf(" Matrix of Parameters: 14x4\n") ; | |
1468 | printf(" Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n") ; | |
1469 | printf(" RCPV 2x3 rows x and z, columns function cut parameters\n") ; | |
1470 | printf(" TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n") ; | |
1471 | printf(" PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n") ; | |
1472 | Printf(" Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n") ; | |
50739f15 | 1473 | fParameters->Print() ; |
09fc14a0 | 1474 | } |
1475 | ||
a496c46c | 1476 | |
69183710 | 1477 | |
7acf6008 | 1478 | //____________________________________________________________________________ |
a4e98857 | 1479 | void AliPHOSPIDv1::PrintRecParticles(Option_t * option) |
1480 | { | |
dd5c4038 | 1481 | // Print table of reconstructed particles |
1482 | ||
88cb7938 | 1483 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; |
bf8f1fbd | 1484 | |
88cb7938 | 1485 | TClonesArray * recParticles = gime->RecParticles() ; |
21cd0c07 | 1486 | |
1487 | TString message ; | |
3bf72d32 | 1488 | message = "\nevent " ; |
1489 | message += gAlice->GetEvNumber() ; | |
1490 | message += " found " ; | |
1491 | message += recParticles->GetEntriesFast(); | |
1492 | message += " RecParticles\n" ; | |
1493 | ||
7acf6008 | 1494 | if(strstr(option,"all")) { // printing found TS |
3bf72d32 | 1495 | message += "\n PARTICLE Index \n" ; |
7acf6008 | 1496 | |
1497 | Int_t index ; | |
7b7c1533 | 1498 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { |
21cd0c07 | 1499 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; |
3bf72d32 | 1500 | message += "\n" ; |
1501 | message += rp->Name().Data() ; | |
1502 | message += " " ; | |
1503 | message += rp->GetIndexInList() ; | |
1504 | message += " " ; | |
1505 | message += rp->GetType() ; | |
7acf6008 | 1506 | } |
3bf72d32 | 1507 | } |
351dd634 | 1508 | AliInfo(message.Data() ) ; |
69183710 | 1509 | } |
88cb7938 | 1510 | |
1511 | //____________________________________________________________________________ | |
1512 | void AliPHOSPIDv1::SetParameters() | |
1513 | { | |
1514 | // PCA : To do the Principal Components Analysis it is necessary | |
1515 | // the Principal file, which is opened here | |
1516 | fX = new double[7]; // Data for the PCA | |
1517 | fPPhoton = new double[7]; // Eigenvalues of the PCA | |
1518 | fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA | |
1519 | ||
1520 | // Read photon principals from the photon file | |
1521 | ||
1522 | fFileNamePrincipalPhoton = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ; | |
1523 | TFile f( fFileNamePrincipalPhoton.Data(), "read" ) ; | |
1524 | fPrincipalPhoton = dynamic_cast<TPrincipal*> (f.Get("principal")) ; | |
1525 | f.Close() ; | |
1526 | ||
1527 | // Read pi0 principals from the pi0 file | |
1528 | ||
1529 | fFileNamePrincipalPi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ; | |
1530 | TFile fPi0( fFileNamePrincipalPi0.Data(), "read" ) ; | |
1531 | fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ; | |
1532 | fPi0.Close() ; | |
1533 | ||
1534 | // Open parameters file and initialization of the Parameters matrix. | |
1535 | // In the File Parameters.dat are all the parameters. These are introduced | |
1536 | // in a matrix of 16x4 | |
1537 | // | |
1538 | // All the parameters defined in this file are, in order of row: | |
1539 | // line 0 : calibration | |
1540 | // lines 1,2 : CPV rectangular cat for X and Z | |
1541 | // line 3 : TOF cut | |
1542 | // lines 4-8 : parameters to calculate photon PCA ellipse | |
1543 | // lines 9-13: parameters to calculate pi0 PCA ellipse | |
1544 | // lines 14-15: parameters to calculate border for high-pt photons and pi0 | |
1545 | ||
1546 | fFileNameParameters = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat"); | |
e8d02863 | 1547 | fParameters = new TMatrixF(16,4) ; |
c947e71a | 1548 | const Int_t kMaxLeng=255; |
1549 | char string[kMaxLeng]; | |
88cb7938 | 1550 | |
1551 | // Open a text file with PID parameters | |
1552 | FILE *fd = fopen(fFileNameParameters.Data(),"r"); | |
1553 | if (!fd) | |
351dd634 | 1554 | AliFatal(Form("File %s with a PID parameters cannot be opened\n", |
1555 | fFileNameParameters.Data())); | |
88cb7938 | 1556 | |
1557 | Int_t i=0; | |
1558 | // Read parameter file line-by-line and skip empty line and comments | |
c947e71a | 1559 | while (fgets(string,kMaxLeng,fd) != NULL) { |
88cb7938 | 1560 | if (string[0] == '\n' ) continue; |
1561 | if (string[0] == '!' ) continue; | |
1562 | sscanf(string, "%f %f %f %f", | |
1563 | &(*fParameters)(i,0), &(*fParameters)(i,1), | |
1564 | &(*fParameters)(i,2), &(*fParameters)(i,3)); | |
1565 | i++; | |
351dd634 | 1566 | AliDebug(1, Form("SetParameters", "line %d: %s",i,string)); |
88cb7938 | 1567 | } |
1568 | fclose(fd); | |
1569 | } | |
1570 | ||
1571 | //____________________________________________________________________________ | |
1572 | void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param) | |
1573 | { | |
1574 | // Set parameter "Calibration" i to a value param | |
351dd634 | 1575 | if(i>2 || i<0) { |
1576 | AliError(Form("Invalid parameter number: %d",i)); | |
1577 | } else | |
88cb7938 | 1578 | (*fParameters)(0,i) = param ; |
1579 | } | |
1580 | ||
1581 | //____________________________________________________________________________ | |
1582 | void AliPHOSPIDv1::SetParameterCpv2Emc(Int_t i, TString axis, Float_t cut) | |
1583 | { | |
1584 | // Set the parameters to calculate Cpv-to-Emc Distance Cut depending on | |
1585 | // Purity-Efficiency point i | |
1586 | ||
351dd634 | 1587 | if(i>2 || i<0) { |
1588 | AliError(Form("Invalid parameter number: %d",i)); | |
1589 | } else { | |
88cb7938 | 1590 | axis.ToLower(); |
1591 | if (axis == "x") (*fParameters)(1,i) = cut; | |
1592 | else if (axis == "z") (*fParameters)(2,i) = cut; | |
351dd634 | 1593 | else { |
1594 | AliError(Form("Invalid axis name: %s",axis.Data())); | |
1595 | } | |
88cb7938 | 1596 | } |
1597 | } | |
1598 | ||
1599 | //____________________________________________________________________________ | |
1600 | void AliPHOSPIDv1::SetParameterPhotonBoundary(Int_t i,Float_t param) | |
1601 | { | |
1602 | // Set parameter "Hard photon boundary" i to a value param | |
351dd634 | 1603 | if(i>4 || i<0) { |
1604 | AliError(Form("Invalid parameter number: %d",i)); | |
1605 | } else | |
88cb7938 | 1606 | (*fParameters)(14,i) = param ; |
1607 | } | |
1608 | ||
1609 | //____________________________________________________________________________ | |
1610 | void AliPHOSPIDv1::SetParameterPi0Boundary(Int_t i,Float_t param) | |
1611 | { | |
1612 | // Set parameter "Hard pi0 boundary" i to a value param | |
351dd634 | 1613 | if(i>1 || i<0) { |
1614 | AliError(Form("Invalid parameter number: %d",i)); | |
1615 | } else | |
88cb7938 | 1616 | (*fParameters)(15,i) = param ; |
1617 | } | |
1618 | ||
1619 | //_____________________________________________________________________________ | |
1620 | void AliPHOSPIDv1::SetParameterTimeGate(Int_t i, Float_t gate) | |
1621 | { | |
1622 | // Set the parameter TimeGate depending on Purity-Efficiency point i | |
351dd634 | 1623 | if (i>2 || i<0) { |
1624 | AliError(Form("Invalid Efficiency-Purity choice %d",i)); | |
1625 | } else | |
88cb7938 | 1626 | (*fParameters)(3,i)= gate ; |
1627 | } | |
1628 | ||
1629 | //_____________________________________________________________________________ | |
1630 | void AliPHOSPIDv1::SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t par) | |
1631 | { | |
1632 | // Set the parameter "i" that is needed to calculate the ellipse | |
1633 | // parameter "param" for a particle "particle" | |
1634 | ||
1635 | particle.ToLower(); | |
1636 | param. ToLower(); | |
1637 | Int_t p= -1; | |
1638 | Int_t offset=0; | |
1639 | ||
1640 | if (particle == "photon") offset=0; | |
1641 | else if (particle == "pi0") offset=5; | |
1642 | else | |
351dd634 | 1643 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", |
1644 | particle.Data())); | |
88cb7938 | 1645 | |
1646 | if (param.Contains("a")) p=4+offset; | |
1647 | else if(param.Contains("b")) p=5+offset; | |
1648 | else if(param.Contains("c")) p=6+offset; | |
1649 | else if(param.Contains("x0"))p=7+offset; | |
1650 | else if(param.Contains("y0"))p=8+offset; | |
351dd634 | 1651 | if((i>4)||(i<0)) { |
1652 | AliError(Form("No parameter with index %d", i)) ; | |
1653 | } else if(p==-1) { | |
1654 | AliError(Form("No parameter with name %s", param.Data() )) ; | |
1655 | } else | |
88cb7938 | 1656 | (*fParameters)(p,i) = par ; |
1657 | } | |
1658 | ||
1659 | //____________________________________________________________________________ | |
1660 | void AliPHOSPIDv1::Unload() | |
1661 | { | |
c947e71a | 1662 | //Unloads RecPoints, Tracks and RecParticles |
88cb7938 | 1663 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
1664 | gime->PhosLoader()->UnloadRecPoints() ; | |
1665 | gime->PhosLoader()->UnloadTracks() ; | |
1666 | gime->PhosLoader()->UnloadRecParticles() ; | |
1667 | } | |
1668 | ||
1669 | //____________________________________________________________________________ | |
90cceaf6 | 1670 | void AliPHOSPIDv1::WriteRecParticles() |
88cb7938 | 1671 | { |
c947e71a | 1672 | //It writes reconstructed particles and pid to file |
1673 | ||
88cb7938 | 1674 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; |
1675 | ||
1676 | TClonesArray * recParticles = gime->RecParticles() ; | |
1677 | recParticles->Expand(recParticles->GetEntriesFast() ) ; | |
adcca1e6 | 1678 | if(fWrite){ |
1679 | TTree * treeP = gime->TreeP(); | |
1680 | ||
1681 | //First rp | |
1682 | Int_t bufferSize = 32000 ; | |
1683 | TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize); | |
1684 | rpBranch->SetTitle(BranchName()); | |
1685 | ||
1686 | rpBranch->Fill() ; | |
1687 | ||
1688 | gime->WriteRecParticles("OVERWRITE"); | |
1689 | gime->WritePID("OVERWRITE"); | |
1690 | } | |
88cb7938 | 1691 | } |
1692 | ||
35adb638 | 1693 | |
1694 | //_______________________________________________________________________ | |
1695 | void AliPHOSPIDv1::SetInitPID(const Double_t *p) { | |
1696 | // Sets values for the initial population of each particle type | |
304864ab | 1697 | for (Int_t i=0; i<AliPID::kSPECIESN; i++) fInitPID[i] = p[i]; |
35adb638 | 1698 | } |
1699 | //_______________________________________________________________________ | |
1700 | void AliPHOSPIDv1::GetInitPID(Double_t *p) const { | |
1701 | // Gets values for the initial population of each particle type | |
304864ab | 1702 | for (Int_t i=0; i<AliPID::kSPECIESN; i++) p[i] = fInitPID[i]; |
35adb638 | 1703 | } |