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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 | * $Log$ | |
26aa7e4a | 21 | * Revision 1.104 2006/12/15 10:46:26 hristov |
22 | * Using TMath::Abs instead of fabs | |
23 | * | |
e4df4b30 | 24 | * Revision 1.103 2006/09/07 18:31:08 kharlov |
25 | * Effective c++ corrections (T.Pocheptsov) | |
26 | * | |
3f7dbdb7 | 27 | * Revision 1.102 2006/01/23 17:51:48 hristov |
28 | * Using the recommended way of forward declarations for TVector and TMatrix (see v5-08-00 release notes). Additional clean-up | |
29 | * | |
e8d02863 | 30 | * Revision 1.101 2005/05/28 14:19:04 schutz |
31 | * Compilation warnings fixed by T.P. | |
32 | * | |
702ab87e | 33 | */ |
34 | ||
6ad0bfa0 | 35 | //_________________________________________________________________________ |
b2a60966 | 36 | // Implementation version v1 of the PHOS particle identifier |
7acf6008 | 37 | // Particle identification based on the |
148b2bba | 38 | // - RCPV: distance from CPV recpoint to EMCA recpoint. |
39 | // - TOF | |
40 | // - PCA: Principal Components Analysis.. | |
41 | // The identified particle has an identification number corresponding | |
42 | // to a 9 bits number: | |
bc0c084c | 43 | // -Bit 0 to 2: bit set if RCPV > CpvEmcDistance (each bit corresponds |
148b2bba | 44 | // to a different efficiency-purity point of the photon identification) |
bc0c084c | 45 | // -Bit 3 to 5: bit set if TOF < TimeGate (each bit corresponds |
148b2bba | 46 | // to a different efficiency-purity point of the photon identification) |
47 | // -Bit 6 to 9: bit set if Principal Components are | |
50739f15 | 48 | // inside an ellipse defined by the parameters a, b, c, x0 and y0. |
148b2bba | 49 | // (each bit corresponds to a different efficiency-purity point of the |
50739f15 | 50 | // photon identification) |
51 | // The PCA (Principal components analysis) needs a file that contains | |
52 | // a previous analysis of the correlations between the particles. This | |
bc0c084c | 53 | // file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis done for |
50739f15 | 54 | // energies between 0.5 and 100 GeV. |
9fa5f1d0 | 55 | // A calibrated energy is calculated. The energy of the reconstructed |
50739f15 | 56 | // cluster is corrected with the formula A + B * E + C * E^2, whose |
bc0c084c | 57 | // parameters where obtained through the study of the reconstructed |
50739f15 | 58 | // energy distribution of monoenergetic photons. |
a4e98857 | 59 | // |
bc0c084c | 60 | // All the parameters (RCPV(2 rows-3 columns),TOF(1r-3c),PCA(5r-4c) |
50739f15 | 61 | // and calibration(1r-3c))are stored in a file called |
62 | // $ALICE_ROOT/PHOS/Parameters.dat. Each time that AliPHOSPIDv1 is | |
bc0c084c | 63 | // initialized, this parameters are copied to a Matrix (9,4), a |
50739f15 | 64 | // TMatrixD object. |
7acf6008 | 65 | // |
a4e98857 | 66 | // use case: |
50739f15 | 67 | // root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root") |
a4e98857 | 68 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50739f15 | 69 | // // reading headers from file galice1.root and create RecParticles |
70 | // TrackSegments and RecPoints are used | |
71 | // // set file name for the branch RecParticles | |
f0a4c9e9 | 72 | // root [1] p->ExecuteTask("deb all time") |
50739f15 | 73 | // // available options |
74 | // // "deb" - prints # of reconstructed particles | |
75 | // // "deb all" - prints # and list of RecParticles | |
76 | // // "time" - prints benchmarking results | |
7acf6008 | 77 | // |
50739f15 | 78 | // root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1",kTRUE) |
148b2bba | 79 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50739f15 | 80 | // //Split mode. |
f0a4c9e9 | 81 | // root [3] p2->ExecuteTask() |
82 | // | |
50739f15 | 83 | |
f0a4c9e9 | 84 | |
7acf6008 | 85 | //*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & |
148b2bba | 86 | // Gustavo Conesa April 2002 |
50739f15 | 87 | // PCA redesigned by Gustavo Conesa October 2002: |
88 | // The way of using the PCA has changed. Instead of 2 | |
89 | // files with the PCA, each one with different energy ranges | |
90 | // of application, we use the wide one (0.5-100 GeV), and instead | |
bc0c084c | 91 | // of fixing 3 ellipses for different ranges of energy, it has been |
50739f15 | 92 | // studied the dependency of the ellipses parameters with the |
93 | // energy, and they are implemented in the code as a funtion | |
94 | // of the energy. | |
95 | // | |
96 | // | |
97 | // | |
6ad0bfa0 | 98 | // --- ROOT system --- |
c947e71a | 99 | |
100 | ||
101 | // --- Standard library --- | |
e8d02863 | 102 | #include <TMatrixF.h> |
acb5beb7 | 103 | #include "TFormula.h" |
7acf6008 | 104 | #include "TBenchmark.h" |
148b2bba | 105 | #include "TPrincipal.h" |
c947e71a | 106 | #include "TFile.h" |
e3817e5f | 107 | #include "TSystem.h" |
148b2bba | 108 | |
6ad0bfa0 | 109 | // --- AliRoot header files --- |
c947e71a | 110 | //#include "AliLog.h" |
7acf6008 | 111 | #include "AliGenerator.h" |
e3817e5f | 112 | #include "AliPHOS.h" |
26d4b141 | 113 | #include "AliPHOSPIDv1.h" |
7b7c1533 | 114 | #include "AliPHOSGetter.h" |
6ad0bfa0 | 115 | |
26d4b141 | 116 | ClassImp( AliPHOSPIDv1) |
6ad0bfa0 | 117 | |
1cb7c1ee | 118 | //____________________________________________________________________________ |
3f7dbdb7 | 119 | AliPHOSPIDv1::AliPHOSPIDv1() : |
120 | fBayesian(kFALSE), | |
121 | fDefaultInit(kFALSE), | |
122 | fWrite(kFALSE), | |
123 | fNEvent(0), | |
124 | fFileNamePrincipalPhoton(), | |
125 | fFileNamePrincipalPi0(), | |
126 | fFileNameParameters(), | |
127 | fPrincipalPhoton(0), | |
128 | fPrincipalPi0(0), | |
129 | fX(0), | |
130 | fPPhoton(0), | |
131 | fPPi0(0), | |
132 | fRecParticlesInRun(0), | |
133 | fParameters(0), | |
134 | fTFphoton(0), | |
135 | fTFpiong(0), | |
136 | fTFkaong(0), | |
137 | fTFkaonl(0), | |
138 | fTFhhadrong(0), | |
139 | fTFhhadronl(0), | |
140 | fDFmuon(0), | |
141 | fERecWeight(0), | |
142 | fChargedNeutralThreshold(0.), | |
143 | fTOFEnThreshold(0), | |
144 | fDispEnThreshold(0), | |
145 | fDispMultThreshold(0) | |
1cb7c1ee | 146 | { |
a4e98857 | 147 | // default ctor |
148b2bba | 148 | |
8d0f3f77 | 149 | InitParameters() ; |
92f521a9 | 150 | fDefaultInit = kTRUE ; |
7acf6008 | 151 | } |
152 | ||
581354c5 | 153 | //____________________________________________________________________________ |
3f7dbdb7 | 154 | AliPHOSPIDv1::AliPHOSPIDv1(const AliPHOSPIDv1 & pid ) : |
155 | AliPHOSPID(pid), | |
156 | fBayesian(kFALSE), | |
157 | fDefaultInit(kFALSE), | |
158 | fWrite(kFALSE), | |
159 | fNEvent(0), | |
160 | fFileNamePrincipalPhoton(), | |
161 | fFileNamePrincipalPi0(), | |
162 | fFileNameParameters(), | |
163 | fPrincipalPhoton(0), | |
164 | fPrincipalPi0(0), | |
165 | fX(0), | |
166 | fPPhoton(0), | |
167 | fPPi0(0), | |
168 | fRecParticlesInRun(0), | |
169 | fParameters(0), | |
170 | fTFphoton(0), | |
171 | fTFpiong(0), | |
172 | fTFkaong(0), | |
173 | fTFkaonl(0), | |
174 | fTFhhadrong(0), | |
175 | fTFhhadronl(0), | |
176 | fDFmuon(0), | |
177 | fERecWeight(0), | |
178 | fChargedNeutralThreshold(0.), | |
179 | fTOFEnThreshold(0), | |
180 | fDispEnThreshold(0), | |
181 | fDispMultThreshold(0) | |
182 | ||
581354c5 | 183 | { |
386aef34 | 184 | // ctor |
581354c5 | 185 | InitParameters() ; |
581354c5 | 186 | Init() ; |
581354c5 | 187 | |
188 | } | |
189 | ||
7acf6008 | 190 | //____________________________________________________________________________ |
3f7dbdb7 | 191 | AliPHOSPIDv1::AliPHOSPIDv1(const TString alirunFileName, const TString eventFolderName) : |
192 | AliPHOSPID(alirunFileName, eventFolderName), | |
193 | fBayesian(kFALSE), | |
194 | fDefaultInit(kFALSE), | |
195 | fWrite(kFALSE), | |
196 | fNEvent(0), | |
197 | fFileNamePrincipalPhoton(), | |
198 | fFileNamePrincipalPi0(), | |
199 | fFileNameParameters(), | |
200 | fPrincipalPhoton(0), | |
201 | fPrincipalPi0(0), | |
202 | fX(0), | |
203 | fPPhoton(0), | |
204 | fPPi0(0), | |
205 | fRecParticlesInRun(0), | |
206 | fParameters(0), | |
207 | fTFphoton(0), | |
208 | fTFpiong(0), | |
209 | fTFkaong(0), | |
210 | fTFkaonl(0), | |
211 | fTFhhadrong(0), | |
212 | fTFhhadronl(0), | |
213 | fDFmuon(0), | |
214 | fERecWeight(0), | |
215 | fChargedNeutralThreshold(0.), | |
216 | fTOFEnThreshold(0), | |
217 | fDispEnThreshold(0), | |
218 | fDispMultThreshold(0) | |
219 | ||
7acf6008 | 220 | { |
a4e98857 | 221 | //ctor with the indication on where to look for the track segments |
7b7c1533 | 222 | |
8d0f3f77 | 223 | InitParameters() ; |
2bd5457f | 224 | Init() ; |
92f521a9 | 225 | fDefaultInit = kFALSE ; |
7acf6008 | 226 | } |
7b7c1533 | 227 | |
7acf6008 | 228 | //____________________________________________________________________________ |
229 | AliPHOSPIDv1::~AliPHOSPIDv1() | |
230 | { | |
79bb1b62 | 231 | // dtor |
acb5beb7 | 232 | fPrincipalPhoton = 0; |
233 | fPrincipalPi0 = 0; | |
9fa5f1d0 | 234 | |
e3817e5f | 235 | delete [] fX ; // Principal input |
236 | delete [] fPPhoton ; // Photon Principal components | |
237 | delete [] fPPi0 ; // Pi0 Principal components | |
acb5beb7 | 238 | |
239 | delete fParameters; | |
240 | delete fTFphoton; | |
241 | delete fTFpiong; | |
242 | delete fTFkaong; | |
243 | delete fTFkaonl; | |
244 | delete fTFhhadrong; | |
245 | delete fTFhhadronl; | |
246 | delete fDFmuon; | |
7acf6008 | 247 | } |
a496c46c | 248 | //____________________________________________________________________________ |
249 | const TString AliPHOSPIDv1::BranchName() const | |
250 | { | |
88cb7938 | 251 | |
252 | return GetName() ; | |
a496c46c | 253 | } |
254 | ||
148b2bba | 255 | //____________________________________________________________________________ |
256 | void AliPHOSPIDv1::Init() | |
257 | { | |
258 | // Make all memory allocations that are not possible in default constructor | |
259 | // Add the PID task to the list of PHOS tasks | |
a496c46c | 260 | |
adcca1e6 | 261 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
262 | if(!gime) | |
263 | gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ; | |
88cb7938 | 264 | |
265 | if ( !gime->PID() ) | |
266 | gime->PostPID(this) ; | |
148b2bba | 267 | } |
8d0f3f77 | 268 | |
269 | //____________________________________________________________________________ | |
270 | void AliPHOSPIDv1::InitParameters() | |
271 | { | |
e3817e5f | 272 | // Initialize PID parameters |
adcca1e6 | 273 | fWrite = kTRUE ; |
8d0f3f77 | 274 | fRecParticlesInRun = 0 ; |
8d0f3f77 | 275 | fNEvent = 0 ; |
8d0f3f77 | 276 | fRecParticlesInRun = 0 ; |
35adb638 | 277 | fBayesian = kTRUE ; |
9fa5f1d0 | 278 | SetParameters() ; // fill the parameters matrix from parameters file |
eabde521 | 279 | SetEventRange(0,-1) ; |
35adb638 | 280 | |
cc1fe362 | 281 | // initialisation of response function parameters |
282 | // Tof | |
2924941c | 283 | |
284 | // // Photons | |
285 | // fTphoton[0] = 0.218 ; | |
286 | // fTphoton[1] = 1.55E-8 ; | |
287 | // fTphoton[2] = 5.05E-10 ; | |
288 | // fTFphoton = new TFormula("ToF response to photons" , "gaus") ; | |
289 | // fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ; | |
290 | ||
291 | // // Pions | |
292 | // //Gaus (0 to max probability) | |
293 | // fTpiong[0] = 0.0971 ; | |
294 | // fTpiong[1] = 1.58E-8 ; | |
295 | // fTpiong[2] = 5.69E-10 ; | |
296 | // fTFpiong = new TFormula("ToF response to pions" , "gaus") ; | |
297 | // fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ; | |
298 | ||
299 | // // Kaons | |
300 | // //Gaus (0 to max probability) | |
301 | // fTkaong[0] = 0.0542 ; | |
302 | // fTkaong[1] = 1.64E-8 ; | |
303 | // fTkaong[2] = 6.07E-10 ; | |
304 | // fTFkaong = new TFormula("ToF response to kaon" , "gaus") ; | |
305 | // fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ; | |
306 | // //Landau (max probability to inf) | |
307 | // fTkaonl[0] = 0.264 ; | |
308 | // fTkaonl[1] = 1.68E-8 ; | |
309 | // fTkaonl[2] = 4.10E-10 ; | |
310 | // fTFkaonl = new TFormula("ToF response to kaon" , "landau") ; | |
311 | // fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ; | |
312 | ||
313 | // //Heavy Hadrons | |
314 | // //Gaus (0 to max probability) | |
315 | // fThhadrong[0] = 0.0302 ; | |
316 | // fThhadrong[1] = 1.73E-8 ; | |
317 | // fThhadrong[2] = 9.52E-10 ; | |
318 | // fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ; | |
319 | // fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ; | |
320 | // //Landau (max probability to inf) | |
321 | // fThhadronl[0] = 0.139 ; | |
322 | // fThhadronl[1] = 1.745E-8 ; | |
323 | // fThhadronl[2] = 1.00E-9 ; | |
324 | // fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ; | |
325 | // fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ; | |
326 | ||
cc1fe362 | 327 | // Photons |
2924941c | 328 | fTphoton[0] = 7.83E8 ; |
35adb638 | 329 | fTphoton[1] = 1.55E-8 ; |
2924941c | 330 | fTphoton[2] = 5.09E-10 ; |
35adb638 | 331 | fTFphoton = new TFormula("ToF response to photons" , "gaus") ; |
cc1fe362 | 332 | fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ; |
35adb638 | 333 | |
334 | // Pions | |
335 | //Gaus (0 to max probability) | |
2924941c | 336 | fTpiong[0] = 6.73E8 ; |
35adb638 | 337 | fTpiong[1] = 1.58E-8 ; |
2924941c | 338 | fTpiong[2] = 5.87E-10 ; |
35adb638 | 339 | fTFpiong = new TFormula("ToF response to pions" , "gaus") ; |
340 | fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ; | |
35adb638 | 341 | |
342 | // Kaons | |
343 | //Gaus (0 to max probability) | |
2924941c | 344 | fTkaong[0] = 3.93E8 ; |
35adb638 | 345 | fTkaong[1] = 1.64E-8 ; |
2924941c | 346 | fTkaong[2] = 6.07E-10 ; |
35adb638 | 347 | fTFkaong = new TFormula("ToF response to kaon" , "gaus") ; |
348 | fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ; | |
349 | //Landau (max probability to inf) | |
2924941c | 350 | fTkaonl[0] = 2.0E9 ; |
35adb638 | 351 | fTkaonl[1] = 1.68E-8 ; |
352 | fTkaonl[2] = 4.10E-10 ; | |
353 | fTFkaonl = new TFormula("ToF response to kaon" , "landau") ; | |
354 | fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ; | |
355 | ||
356 | //Heavy Hadrons | |
357 | //Gaus (0 to max probability) | |
2924941c | 358 | fThhadrong[0] = 2.02E8 ; |
35adb638 | 359 | fThhadrong[1] = 1.73E-8 ; |
360 | fThhadrong[2] = 9.52E-10 ; | |
361 | fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ; | |
362 | fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ; | |
363 | //Landau (max probability to inf) | |
2924941c | 364 | fThhadronl[0] = 1.10E9 ; |
365 | fThhadronl[1] = 1.74E-8 ; | |
366 | fThhadronl[2] = 1.00E-9 ; | |
35adb638 | 367 | fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ; |
368 | fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ; | |
369 | ||
35adb638 | 370 | |
371 | ||
372 | // Shower shape: dispersion gaussian parameters | |
373 | // Photons | |
2924941c | 374 | |
375 | // fDphoton[0] = 4.62e-2; fDphoton[1] = 1.39e-2 ; fDphoton[2] = -3.80e-2;//constant | |
376 | // fDphoton[3] = 1.53 ; fDphoton[4] =-6.62e-2 ; fDphoton[5] = 0.339 ;//mean | |
377 | // fDphoton[6] = 6.89e-2; fDphoton[7] =-6.59e-2 ; fDphoton[8] = 0.194 ;//sigma | |
378 | ||
379 | // fDpi0[0] = 0.0586 ; fDpi0[1] = 1.06E-3 ; fDpi0[2] = 0. ;//constant | |
380 | // fDpi0[3] = 2.67 ; fDpi0[4] =-2.00E-2 ; fDpi0[5] = 9.37E-5 ;//mean | |
381 | // fDpi0[6] = 0.153 ; fDpi0[7] = 9.34E-4 ; fDpi0[8] =-1.49E-5 ;//sigma | |
382 | ||
383 | // fDhadron[0] = 1.61E-2 ; fDhadron[1] = 3.03E-3 ; fDhadron[2] = 1.01E-2 ;//constant | |
384 | // fDhadron[3] = 3.81 ; fDhadron[4] = 0.232 ; fDhadron[5] =-1.25 ;//mean | |
385 | // fDhadron[6] = 0.897 ; fDhadron[7] = 0.0987 ; fDhadron[8] =-0.534 ;//sigma | |
386 | ||
387 | fDphoton[0] = 1.5 ; fDphoton[1] = 0.49 ; fDphoton[2] =-1.7E-2 ;//constant | |
388 | fDphoton[3] = 1.5 ; fDphoton[4] = 4.0E-2 ; fDphoton[5] = 0.21 ;//mean | |
389 | fDphoton[6] = 4.8E-2 ; fDphoton[7] =-0.12 ; fDphoton[8] = 0.27 ;//sigma | |
390 | fDphoton[9] = 16.; //for E> fDphoton[9] parameters calculated at fDphoton[9] | |
391 | ||
392 | fDpi0[0] = 0.25 ; fDpi0[1] = 3.3E-2 ; fDpi0[2] =-1.0e-5 ;//constant | |
393 | fDpi0[3] = 1.50 ; fDpi0[4] = 398. ; fDpi0[5] = 12. ;//mean | |
394 | fDpi0[6] =-7.0E-2 ; fDpi0[7] =-524. ; fDpi0[8] = 22. ;//sigma | |
395 | fDpi0[9] = 110.; //for E> fDpi0[9] parameters calculated at fDpi0[9] | |
396 | ||
397 | fDhadron[0] = 6.5 ; fDhadron[1] =-5.3 ; fDhadron[2] = 1.5 ;//constant | |
398 | fDhadron[3] = 3.8 ; fDhadron[4] = 0.23 ; fDhadron[5] =-1.2 ;//mean | |
399 | fDhadron[6] = 0.88 ; fDhadron[7] = 9.3E-2 ; fDhadron[8] =-0.51 ;//sigma | |
400 | fDhadron[9] = 2.; //for E> fDhadron[9] parameters calculated at fDhadron[9] | |
401 | ||
402 | fDmuon[0] = 0.0631 ; | |
403 | fDmuon[1] = 1.4 ; | |
35adb638 | 404 | fDmuon[2] = 0.0557 ; |
405 | fDFmuon = new TFormula("Shower shape response to muons" , "landau") ; | |
406 | fDFmuon->SetParameters( fDmuon[0], fDmuon[1], fDmuon[2]) ; | |
407 | ||
35adb638 | 408 | |
c947e71a | 409 | // x(CPV-EMC) distance gaussian parameters |
410 | ||
2924941c | 411 | // fXelectron[0] = 8.06e-2 ; fXelectron[1] = 1.00e-2; fXelectron[2] =-5.14e-2;//constant |
412 | // fXelectron[3] = 0.202 ; fXelectron[4] = 8.15e-3; fXelectron[5] = 4.55 ;//mean | |
413 | // fXelectron[6] = 0.334 ; fXelectron[7] = 0.186 ; fXelectron[8] = 4.32e-2;//sigma | |
c947e71a | 414 | |
2924941c | 415 | // //charged hadrons gaus |
416 | // fXcharged[0] = 6.43e-3 ; fXcharged[1] =-4.19e-5; fXcharged[2] = 1.42e-3;//constant | |
417 | // fXcharged[3] = 2.75 ; fXcharged[4] =-0.40 ; fXcharged[5] = 1.68 ;//mean | |
418 | // fXcharged[6] = 3.135 ; fXcharged[7] =-9.41e-2; fXcharged[8] = 1.31e-2;//sigma | |
c947e71a | 419 | |
2924941c | 420 | // // z(CPV-EMC) distance gaussian parameters |
421 | ||
422 | // fZelectron[0] = 8.22e-2 ; fZelectron[1] = 5.11e-3; fZelectron[2] =-3.05e-2;//constant | |
423 | // fZelectron[3] = 3.09e-2 ; fZelectron[4] = 5.87e-2; fZelectron[5] =-9.49e-2;//mean | |
424 | // fZelectron[6] = 0.263 ; fZelectron[7] =-9.02e-3; fZelectron[8] = 0.151 ;//sigma | |
c947e71a | 425 | |
2924941c | 426 | // //charged hadrons gaus |
c947e71a | 427 | |
2924941c | 428 | // fZcharged[0] = 1.00e-2 ; fZcharged[1] = 2.82E-4 ; fZcharged[2] = 2.87E-3 ;//constant |
429 | // fZcharged[3] =-4.68e-2 ; fZcharged[4] =-9.21e-3 ; fZcharged[5] = 4.91e-2 ;//mean | |
430 | // fZcharged[6] = 1.425 ; fZcharged[7] =-5.90e-2 ; fZcharged[8] = 5.07e-2 ;//sigma | |
431 | ||
432 | ||
433 | fXelectron[0] =-1.6E-2 ; fXelectron[1] = 0.77 ; fXelectron[2] =-0.15 ;//constant | |
434 | fXelectron[3] = 0.35 ; fXelectron[4] = 0.25 ; fXelectron[5] = 4.12 ;//mean | |
435 | fXelectron[6] = 0.30 ; fXelectron[7] = 0.11 ; fXelectron[8] = 0.16 ;//sigma | |
436 | fXelectron[9] = 3.; //for E> fXelectron[9] parameters calculated at fXelectron[9] | |
437 | ||
c947e71a | 438 | //charged hadrons gaus |
2924941c | 439 | fXcharged[0] = 0.14 ; fXcharged[1] =-3.0E-2 ; fXcharged[2] = 0 ;//constant |
440 | fXcharged[3] = 1.4 ; fXcharged[4] =-9.3E-2 ; fXcharged[5] = 1.4 ;//mean | |
441 | fXcharged[6] = 5.7 ; fXcharged[7] = 0.27 ; fXcharged[8] =-1.8 ;//sigma | |
442 | fXcharged[9] = 1.2; //for E> fXcharged[9] parameters calculated at fXcharged[9] | |
443 | ||
444 | // z(CPV-EMC) distance gaussian parameters | |
c947e71a | 445 | |
2924941c | 446 | fZelectron[0] = 0.49 ; fZelectron[1] = 0.53 ; fZelectron[2] =-9.8E-2 ;//constant |
447 | fZelectron[3] = 2.8E-2 ; fZelectron[4] = 5.0E-2 ; fZelectron[5] =-8.2E-2 ;//mean | |
448 | fZelectron[6] = 0.25 ; fZelectron[7] =-1.7E-2 ; fZelectron[8] = 0.17 ;//sigma | |
449 | fZelectron[9] = 3.; //for E> fZelectron[9] parameters calculated at fZelectron[9] | |
450 | ||
451 | //charged hadrons gaus | |
c947e71a | 452 | |
2924941c | 453 | fZcharged[0] = 0.46 ; fZcharged[1] =-0.65 ; fZcharged[2] = 0.52 ;//constant |
454 | fZcharged[3] = 1.1E-2 ; fZcharged[4] = 0. ; fZcharged[5] = 0. ;//mean | |
455 | fZcharged[6] = 0.60 ; fZcharged[7] =-8.2E-2 ; fZcharged[8] = 0.45 ;//sigma | |
456 | fZcharged[9] = 1.2; //for E> fXcharged[9] parameters calculated at fXcharged[9] | |
457 | ||
fb7b51ad | 458 | //Threshold to differentiate between charged and neutral |
459 | fChargedNeutralThreshold = 1e-5; | |
2924941c | 460 | fTOFEnThreshold = 2; //Maximum energy to use TOF |
461 | fDispEnThreshold = 0.5; //Minimum energy to use shower shape | |
462 | fDispMultThreshold = 3; //Minimum multiplicity to use shower shape | |
fb7b51ad | 463 | |
464 | //Weight to hadrons recontructed energy | |
465 | ||
466 | fERecWeightPar[0] = 0.32 ; | |
467 | fERecWeightPar[1] = 3.8 ; | |
468 | fERecWeightPar[2] = 5.4E-3 ; | |
469 | fERecWeightPar[3] = 5.6E-2 ; | |
470 | fERecWeight = new TFormula("Weight for hadrons" , "[0]*exp(-x*[1])+[2]*exp(-x*[3])") ; | |
471 | fERecWeight ->SetParameters(fERecWeightPar[0],fERecWeightPar[1] ,fERecWeightPar[2] ,fERecWeightPar[3]) ; | |
472 | ||
473 | ||
304864ab | 474 | for (Int_t i =0; i< AliPID::kSPECIESN ; i++) |
35adb638 | 475 | fInitPID[i] = 1.; |
fb7b51ad | 476 | |
8d0f3f77 | 477 | } |
478 | ||
88cb7938 | 479 | //________________________________________________________________________ |
eabde521 | 480 | void AliPHOSPIDv1::Exec(Option_t *option) |
88cb7938 | 481 | { |
eabde521 | 482 | // Steering method to perform particle reconstruction and identification |
483 | // for the event range from fFirstEvent to fLastEvent. | |
484 | // This range is optionally set by SetEventRange(). | |
485 | // if fLastEvent=-1 (by default), then process events until the end. | |
61d3d6aa | 486 | |
88cb7938 | 487 | if(strstr(option,"tim")) |
488 | gBenchmark->Start("PHOSPID"); | |
489 | ||
490 | if(strstr(option,"print")) { | |
491 | Print() ; | |
492 | return ; | |
493 | } | |
494 | ||
495 | ||
adcca1e6 | 496 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
88cb7938 | 497 | |
71cee46d | 498 | if (fLastEvent == -1) |
499 | fLastEvent = gime->MaxEvent() - 1 ; | |
500 | else | |
501 | fLastEvent = TMath::Min(fLastEvent,gime->MaxEvent()); | |
eabde521 | 502 | Int_t nEvents = fLastEvent - fFirstEvent + 1; |
88cb7938 | 503 | |
71cee46d | 504 | Int_t ievent ; |
505 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
88cb7938 | 506 | gime->Event(ievent,"TR") ; |
507 | if(gime->TrackSegments() && //Skip events, where no track segments made | |
508 | gime->TrackSegments()->GetEntriesFast()) { | |
7fb46731 | 509 | |
88cb7938 | 510 | MakeRecParticles() ; |
35adb638 | 511 | |
512 | if(fBayesian) | |
513 | MakePID() ; | |
514 | ||
90cceaf6 | 515 | WriteRecParticles(); |
88cb7938 | 516 | if(strstr(option,"deb")) |
517 | PrintRecParticles(option) ; | |
518 | //increment the total number of rec particles per run | |
519 | fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; | |
520 | } | |
521 | } | |
ff417097 | 522 | if(strstr(option,"deb")) |
523 | PrintRecParticles(option); | |
88cb7938 | 524 | if(strstr(option,"tim")){ |
525 | gBenchmark->Stop("PHOSPID"); | |
351dd634 | 526 | AliInfo(Form("took %f seconds for PID %f seconds per event", |
88cb7938 | 527 | gBenchmark->GetCpuTime("PHOSPID"), |
351dd634 | 528 | gBenchmark->GetCpuTime("PHOSPID")/nEvents)) ; |
88cb7938 | 529 | } |
adcca1e6 | 530 | if(fWrite) |
531 | Unload(); | |
88cb7938 | 532 | } |
533 | ||
35adb638 | 534 | //________________________________________________________________________ |
17323043 | 535 | Double_t AliPHOSPIDv1::GausF(Double_t x, Double_t y, Double_t * par) |
35adb638 | 536 | { |
c947e71a | 537 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
538 | //this method returns a density probability of this parameter, given by a gaussian | |
539 | //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b | |
2924941c | 540 | //Float_t xorg = x; |
541 | if (x > par[9]) x = par[9]; | |
542 | ||
543 | //Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ; | |
544 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; | |
35adb638 | 545 | Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ; |
546 | Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ; | |
c947e71a | 547 | |
2924941c | 548 | // if(xorg > 30) |
549 | // cout<<"En_in = "<<xorg<<"; En_out = "<<x<<"; cnt = "<<cnt | |
550 | // <<"; mean = "<<mean<<"; sigma = "<<sigma<<endl; | |
551 | ||
35adb638 | 552 | // Double_t arg = - (y-mean) * (y-mean) / (2*sigma*sigma) ; |
553 | // return cnt * TMath::Exp(arg) ; | |
c947e71a | 554 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 555 | return cnt*TMath::Gaus(y,mean,sigma); |
35adb638 | 556 | } |
557 | else | |
558 | return 0.; | |
c947e71a | 559 | |
35adb638 | 560 | } |
561 | //________________________________________________________________________ | |
17323043 | 562 | Double_t AliPHOSPIDv1::GausPol2(Double_t x, Double_t y, Double_t * par) |
35adb638 | 563 | { |
c947e71a | 564 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
565 | //this method returns a density probability of this parameter, given by a gaussian | |
566 | //function whose parameters depend with the energy like second order polinomial | |
567 | ||
35adb638 | 568 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; |
569 | Double_t mean = par[3] + par[4] * x + par[5] * x * x ; | |
570 | Double_t sigma = par[6] + par[7] * x + par[8] * x * x ; | |
571 | ||
c947e71a | 572 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 573 | return cnt*TMath::Gaus(y,mean,sigma); |
35adb638 | 574 | } |
575 | else | |
576 | return 0.; | |
c947e71a | 577 | |
578 | ||
579 | ||
35adb638 | 580 | } |
581 | ||
69183710 | 582 | //____________________________________________________________________________ |
e3817e5f | 583 | const TString AliPHOSPIDv1::GetFileNamePrincipal(TString particle) const |
148b2bba | 584 | { |
e3817e5f | 585 | //Get file name that contains the PCA for a particle ("photon or pi0") |
586 | particle.ToLower(); | |
587 | TString name; | |
351dd634 | 588 | if (particle=="photon") |
589 | name = fFileNamePrincipalPhoton ; | |
590 | else if (particle=="pi0" ) | |
591 | name = fFileNamePrincipalPi0 ; | |
592 | else | |
593 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", | |
594 | particle.Data())); | |
e3817e5f | 595 | return name; |
596 | } | |
bc0c084c | 597 | |
e3817e5f | 598 | //____________________________________________________________________________ |
fc7e2f43 | 599 | Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const |
e3817e5f | 600 | { |
601 | // Get the i-th parameter "Calibration" | |
602 | Float_t param = 0.; | |
351dd634 | 603 | if (i>2 || i<0) { |
604 | AliError(Form("Invalid parameter number: %d",i)); | |
605 | } else | |
e3817e5f | 606 | param = (*fParameters)(0,i); |
607 | return param; | |
608 | } | |
bc0c084c | 609 | |
88cb7938 | 610 | //____________________________________________________________________________ |
fc7e2f43 | 611 | Float_t AliPHOSPIDv1::GetCalibratedEnergy(Float_t e) const |
88cb7938 | 612 | { |
613 | // It calibrates Energy depending on the recpoint energy. | |
614 | // The energy of the reconstructed cluster is corrected with | |
615 | // the formula A + B* E + C* E^2, whose parameters where obtained | |
616 | // through the study of the reconstructed energy distribution of | |
617 | // monoenergetic photons. | |
618 | ||
619 | Float_t p[]={0.,0.,0.}; | |
620 | for (Int_t i=0; i<3; i++) p[i] = GetParameterCalibration(i); | |
621 | Float_t enerec = p[0] + p[1]*e + p[2]*e*e; | |
622 | return enerec ; | |
623 | ||
624 | } | |
625 | ||
e3817e5f | 626 | //____________________________________________________________________________ |
fc7e2f43 | 627 | Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const |
e3817e5f | 628 | { |
629 | // Get the i-th parameter "CPV-EMC distance" for the specified axis | |
630 | Float_t param = 0.; | |
351dd634 | 631 | if(i>2 || i<0) { |
632 | AliError(Form("Invalid parameter number: %d",i)); | |
633 | } else { | |
e3817e5f | 634 | axis.ToLower(); |
351dd634 | 635 | if (axis == "x") |
636 | param = (*fParameters)(1,i); | |
637 | else if (axis == "z") | |
638 | param = (*fParameters)(2,i); | |
639 | else { | |
640 | AliError(Form("Invalid axis name: %s",axis.Data())); | |
641 | } | |
e3817e5f | 642 | } |
643 | return param; | |
644 | } | |
645 | ||
646 | //____________________________________________________________________________ | |
fc7e2f43 | 647 | Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const |
e3817e5f | 648 | { |
88cb7938 | 649 | // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and |
650 | // Purity-Efficiency point | |
651 | ||
652 | axis.ToLower(); | |
653 | Float_t p[]={0.,0.,0.}; | |
654 | for (Int_t i=0; i<3; i++) p[i] = GetParameterCpv2Emc(i,axis); | |
655 | Float_t sig = p[0] + TMath::Exp(p[1] - p[2]*e); | |
656 | return sig; | |
e3817e5f | 657 | } |
658 | ||
88cb7938 | 659 | //____________________________________________________________________________ |
fc7e2f43 | 660 | Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const |
88cb7938 | 661 | { |
662 | // Calculates the parameter param of the ellipse | |
e3817e5f | 663 | |
664 | particle.ToLower(); | |
665 | param. ToLower(); | |
88cb7938 | 666 | Float_t p[4]={0.,0.,0.,0.}; |
667 | Float_t value = 0.0; | |
668 | for (Int_t i=0; i<4; i++) p[i] = GetParameterToCalculateEllipse(particle,param,i); | |
669 | if (particle == "photon") { | |
670 | if (param.Contains("a")) e = TMath::Min((Double_t)e,70.); | |
671 | else if (param.Contains("b")) e = TMath::Min((Double_t)e,70.); | |
672 | else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1); | |
673 | } | |
e3817e5f | 674 | |
443caba9 | 675 | if (particle == "photon") |
676 | value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3]; | |
677 | else if (particle == "pi0") | |
678 | value = p[0] + p[1]*e + p[2]*e*e; | |
679 | ||
88cb7938 | 680 | return value; |
e3817e5f | 681 | } |
682 | ||
683 | //_____________________________________________________________________________ | |
fc7e2f43 | 684 | Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (Int_t i) const |
e3817e5f | 685 | { |
686 | // Get the parameter "i" to calculate the boundary on the moment M2x | |
687 | // for photons at high p_T | |
688 | Float_t param = 0; | |
351dd634 | 689 | if (i>3 || i<0) { |
690 | AliError(Form("Wrong parameter number: %d\n",i)); | |
691 | } else | |
e3817e5f | 692 | param = (*fParameters)(14,i) ; |
693 | return param; | |
148b2bba | 694 | } |
e3817e5f | 695 | |
148b2bba | 696 | //____________________________________________________________________________ |
fc7e2f43 | 697 | Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const |
e3817e5f | 698 | { |
699 | // Get the parameter "i" to calculate the boundary on the moment M2x | |
700 | // for pi0 at high p_T | |
701 | Float_t param = 0; | |
351dd634 | 702 | if (i>2 || i<0) { |
703 | AliError(Form("Wrong parameter number: %d\n",i)); | |
704 | } else | |
e3817e5f | 705 | param = (*fParameters)(15,i) ; |
706 | return param; | |
707 | } | |
148b2bba | 708 | |
e3817e5f | 709 | //____________________________________________________________________________ |
fc7e2f43 | 710 | Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const |
e3817e5f | 711 | { |
88cb7938 | 712 | // Get TimeGate parameter depending on Purity-Efficiency i: |
713 | // i=0 - Low purity, i=1 - Medium purity, i=2 - High purity | |
714 | Float_t param = 0.; | |
351dd634 | 715 | if(i>2 || i<0) { |
716 | AliError(Form("Invalid Efficiency-Purity choice %d",i)); | |
717 | } else | |
88cb7938 | 718 | param = (*fParameters)(3,i) ; |
719 | return param; | |
e3817e5f | 720 | } |
721 | ||
148b2bba | 722 | //_____________________________________________________________________________ |
fc7e2f43 | 723 | Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const |
88cb7938 | 724 | { |
725 | // Get the parameter "i" that is needed to calculate the ellipse | |
726 | // parameter "param" for the particle "particle" ("photon" or "pi0") | |
727 | ||
e3817e5f | 728 | particle.ToLower(); |
729 | param. ToLower(); | |
88cb7938 | 730 | Int_t offset = -1; |
351dd634 | 731 | if (particle == "photon") |
732 | offset=0; | |
733 | else if (particle == "pi0") | |
734 | offset=5; | |
e3817e5f | 735 | else |
351dd634 | 736 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", |
737 | particle.Data())); | |
88cb7938 | 738 | |
739 | Int_t p= -1; | |
740 | Float_t par = 0; | |
e3817e5f | 741 | |
742 | if (param.Contains("a")) p=4+offset; | |
743 | else if(param.Contains("b")) p=5+offset; | |
744 | else if(param.Contains("c")) p=6+offset; | |
745 | else if(param.Contains("x0"))p=7+offset; | |
746 | else if(param.Contains("y0"))p=8+offset; | |
12022e83 | 747 | |
351dd634 | 748 | if (i>4 || i<0) { |
749 | AliError(Form("No parameter with index %d", i)) ; | |
750 | } else if (p==-1) { | |
751 | AliError(Form("No parameter with name %s", param.Data() )) ; | |
752 | } else | |
88cb7938 | 753 | par = (*fParameters)(p,i) ; |
754 | ||
755 | return par; | |
12022e83 | 756 | } |
757 | ||
12022e83 | 758 | |
26aa7e4a | 759 | //DP____________________________________________________________________________ |
760 | //Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Option_t * axis)const | |
761 | //{ | |
762 | // // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
763 | // | |
764 | // const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ; | |
765 | // TVector3 vecEmc ; | |
766 | // TVector3 vecCpv ; | |
767 | // if(cpv){ | |
768 | // emc->GetLocalPosition(vecEmc) ; | |
769 | // cpv->GetLocalPosition(vecCpv) ; | |
770 | // | |
771 | // if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ | |
772 | // // Correct to difference in CPV and EMC position due to different distance to center. | |
773 | // // we assume, that particle moves from center | |
774 | // Float_t dCPV = geom->GetIPtoOuterCoverDistance(); | |
775 | // Float_t dEMC = geom->GetIPtoCrystalSurface() ; | |
776 | // dEMC = dEMC / dCPV ; | |
777 | // vecCpv = dEMC * vecCpv - vecEmc ; | |
778 | // if (axis == "X") return vecCpv.X(); | |
779 | // if (axis == "Y") return vecCpv.Y(); | |
780 | // if (axis == "Z") return vecCpv.Z(); | |
781 | // if (axis == "R") return vecCpv.Mag(); | |
782 | // } | |
783 | // return 100000000 ; | |
784 | // } | |
785 | // return 100000000 ; | |
786 | //} | |
12022e83 | 787 | //____________________________________________________________________________ |
26aa7e4a | 788 | Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSTrackSegment * ts, Int_t effPur, Float_t e) const |
bc0c084c | 789 | { |
c947e71a | 790 | //Calculates the pid bit for the CPV selection per each purity. |
e3817e5f | 791 | if(effPur>2 || effPur<0) |
351dd634 | 792 | AliError(Form("Invalid Efficiency-Purity choice %d",effPur)); |
26aa7e4a | 793 | |
794 | if(ts->GetCpvIndex()<0) | |
795 | return 1 ; //no CPV cluster | |
bc0c084c | 796 | |
e3817e5f | 797 | Float_t sigX = GetCpv2EmcDistanceCut("X",e); |
798 | Float_t sigZ = GetCpv2EmcDistanceCut("Z",e); | |
bc0c084c | 799 | |
26aa7e4a | 800 | Float_t deltaX = TMath::Abs(ts->GetCpvDistance("X")); |
801 | Float_t deltaZ = TMath::Abs(ts->GetCpvDistance("Z")); | |
7fb46731 | 802 | //Info("GetCPVBit"," xdist %f, sigx %f, zdist %f, sigz %f",deltaX, sigX, deltaZ,sigZ) ; |
803 | ||
804 | //if(deltaX>sigX*(effPur+1)) | |
805 | //if((deltaX>sigX*(effPur+1)) || (deltaZ>sigZ*(effPur+1))) | |
806 | if((deltaX>sigX*(effPur+1)) && (deltaZ>sigZ*(effPur+1))) | |
bc0c084c | 807 | return 1;//Neutral |
808 | else | |
809 | return 0;//Charged | |
bc0c084c | 810 | } |
69183710 | 811 | |
6ad0bfa0 | 812 | //____________________________________________________________________________ |
fc7e2f43 | 813 | Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p, Int_t effPur, Float_t e)const |
148b2bba | 814 | { |
50739f15 | 815 | //Is the particle inside de PCA ellipse? |
581354c5 | 816 | |
e3817e5f | 817 | particle.ToLower(); |
818 | Int_t prinbit = 0 ; | |
7fb46731 | 819 | Float_t a = GetEllipseParameter(particle,"a" , e); |
820 | Float_t b = GetEllipseParameter(particle,"b" , e); | |
821 | Float_t c = GetEllipseParameter(particle,"c" , e); | |
e3817e5f | 822 | Float_t x0 = GetEllipseParameter(particle,"x0", e); |
823 | Float_t y0 = GetEllipseParameter(particle,"y0", e); | |
824 | ||
825 | Float_t r = TMath::Power((p[0] - x0)/a,2) + | |
826 | TMath::Power((p[1] - y0)/b,2) + | |
827 | c*(p[0] - x0)*(p[1] - y0)/(a*b) ; | |
50739f15 | 828 | //3 different ellipses defined |
e3817e5f | 829 | if((effPur==2) && (r<1./2.)) prinbit= 1; |
830 | if((effPur==1) && (r<2. )) prinbit= 1; | |
831 | if((effPur==0) && (r<9./2.)) prinbit= 1; | |
50739f15 | 832 | |
581354c5 | 833 | if(r<0) |
351dd634 | 834 | AliError("Negative square?") ; |
1f0e7ccd | 835 | |
836 | return prinbit; | |
148b2bba | 837 | |
148b2bba | 838 | } |
1f0e7ccd | 839 | //____________________________________________________________________________ |
fc7e2f43 | 840 | Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const |
1f0e7ccd | 841 | { |
e3817e5f | 842 | // Set bit for identified hard photons (E > 30 GeV) |
843 | // if the second moment M2x is below the boundary | |
844 | ||
845 | Float_t e = emc->GetEnergy(); | |
846 | if (e < 30.0) return 0; | |
847 | Float_t m2x = emc->GetM2x(); | |
848 | Float_t m2xBoundary = GetParameterPhotonBoundary(0) * | |
849 | TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/ | |
850 | TMath::Power(GetParameterPhotonBoundary(2),2)) + | |
851 | GetParameterPhotonBoundary(3); | |
351dd634 | 852 | AliDebug(1, Form("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f", |
853 | e,m2x,m2xBoundary)); | |
e3817e5f | 854 | if (m2x < m2xBoundary) |
855 | return 1;// A hard photon | |
856 | else | |
857 | return 0;// Not a hard photon | |
1f0e7ccd | 858 | } |
92f521a9 | 859 | |
e3817e5f | 860 | //____________________________________________________________________________ |
fc7e2f43 | 861 | Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) const |
e3817e5f | 862 | { |
863 | // Set bit for identified hard pi0 (E > 30 GeV) | |
864 | // if the second moment M2x is above the boundary | |
865 | ||
866 | Float_t e = emc->GetEnergy(); | |
867 | if (e < 30.0) return 0; | |
868 | Float_t m2x = emc->GetM2x(); | |
869 | Float_t m2xBoundary = GetParameterPi0Boundary(0) + | |
870 | e * GetParameterPi0Boundary(1); | |
351dd634 | 871 | AliDebug(1,Form("E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary)); |
e3817e5f | 872 | if (m2x > m2xBoundary) |
873 | return 1;// A hard pi0 | |
bc0c084c | 874 | else |
e3817e5f | 875 | return 0;// Not a hard pi0 |
f0a4c9e9 | 876 | } |
e3817e5f | 877 | |
878 | //____________________________________________________________________________ | |
8d4608b5 | 879 | TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * )const |
88cb7938 | 880 | { |
881 | // Calculates the momentum direction: | |
882 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
883 | // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints | |
884 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
885 | // in case 1. | |
f0a4c9e9 | 886 | |
88cb7938 | 887 | TVector3 dir(0,0,0) ; |
e8d02863 | 888 | TMatrixF dummy ; |
bf8f1fbd | 889 | |
fb7b51ad | 890 | emc->GetGlobalPosition(dir, dummy) ; |
e3817e5f | 891 | |
88cb7938 | 892 | //account correction to the position of IP |
893 | Float_t xo,yo,zo ; //Coordinates of the origin | |
7fb46731 | 894 | if(gAlice && gAlice->GetMCApp() && gAlice->Generator()){ |
adcca1e6 | 895 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; |
7fb46731 | 896 | } |
adcca1e6 | 897 | else{ |
898 | xo=yo=zo=0.; | |
899 | } | |
88cb7938 | 900 | TVector3 origin(xo,yo,zo); |
901 | dir = dir - origin ; | |
7fb46731 | 902 | dir.SetMag(1.) ; |
e3817e5f | 903 | |
88cb7938 | 904 | return dir ; |
7b7c1533 | 905 | } |
906 | ||
35adb638 | 907 | //________________________________________________________________________ |
17323043 | 908 | Double_t AliPHOSPIDv1::LandauF(Double_t x, Double_t y, Double_t * par) |
35adb638 | 909 | { |
c947e71a | 910 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
911 | //this method returns a density probability of this parameter, given by a landau | |
912 | //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b | |
913 | ||
2924941c | 914 | if (x > par[9]) x = par[9]; |
915 | ||
916 | //Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ; | |
917 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; | |
35adb638 | 918 | Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ; |
919 | Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ; | |
c947e71a | 920 | |
921 | if(TMath::Abs(sigma) > 1.e-10){ | |
acb5beb7 | 922 | return cnt*TMath::Landau(y,mean,sigma); |
35adb638 | 923 | } |
924 | else | |
925 | return 0.; | |
926 | ||
927 | } | |
928 | //________________________________________________________________________ | |
17323043 | 929 | Double_t AliPHOSPIDv1::LandauPol2(Double_t x, Double_t y, Double_t * par) |
35adb638 | 930 | { |
c947e71a | 931 | |
932 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), | |
933 | //this method returns a density probability of this parameter, given by a landau | |
934 | //function whose parameters depend with the energy like second order polinomial | |
935 | ||
35adb638 | 936 | Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ; |
c947e71a | 937 | Double_t mean = par[5] * (x*x) + par[4] * x + par[3] ; |
938 | Double_t sigma = par[8] * (x*x) + par[7] * x + par[6] ; | |
35adb638 | 939 | |
c947e71a | 940 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 941 | return cnt*TMath::Landau(y,mean,sigma); |
35adb638 | 942 | } |
943 | else | |
944 | return 0.; | |
c947e71a | 945 | |
946 | ||
35adb638 | 947 | } |
948 | // //________________________________________________________________________ | |
949 | // Double_t AliPHOSPIDv1::ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl) | |
950 | // { | |
951 | // Double_t cnt = 0.0 ; | |
952 | // Double_t mean = 0.0 ; | |
953 | // Double_t sigma = 0.0 ; | |
954 | // Double_t arg = 0.0 ; | |
955 | // if (y < parl[4] / (x*x) + parl[5] / x + parl[3]){ | |
956 | // cnt = parg[1] / (x*x) + parg[2] / x + parg[0] ; | |
957 | // mean = parg[4] / (x*x) + parg[5] / x + parg[3] ; | |
958 | // sigma = parg[7] / (x*x) + parg[8] / x + parg[6] ; | |
959 | // TF1 * f = new TF1("gaus","gaus",0.,100.); | |
960 | // f->SetParameters(cnt,mean,sigma); | |
961 | // arg = f->Eval(y) ; | |
962 | // } | |
963 | // else{ | |
964 | // cnt = parl[1] / (x*x) + parl[2] / x + parl[0] ; | |
965 | // mean = parl[4] / (x*x) + parl[5] / x + parl[3] ; | |
966 | // sigma = parl[7] / (x*x) + parl[8] / x + parl[6] ; | |
967 | // TF1 * f = new TF1("landau","landau",0.,100.); | |
968 | // f->SetParameters(cnt,mean,sigma); | |
969 | // arg = f->Eval(y) ; | |
970 | // } | |
971 | // // Double_t mean = par[3] + par[4] * x + par[5] * x * x ; | |
972 | // // Double_t sigma = par[6] + par[7] * x + par[8] * x * x ; | |
973 | ||
974 | // //Double_t arg = -(y-mean)*(y-mean)/(2*sigma*sigma) ; | |
975 | // //return cnt * TMath::Exp(arg) ; | |
976 | ||
977 | // return arg; | |
978 | ||
979 | // } | |
2cc71c1e | 980 | //____________________________________________________________________________ |
981 | void AliPHOSPIDv1::MakePID() | |
982 | { | |
983 | // construct the PID weight from a Bayesian Method | |
c947e71a | 984 | |
304864ab | 985 | const Int_t kSPECIES = AliPID::kSPECIESN ; |
7fb46731 | 986 | |
987 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
988 | ||
989 | Int_t nparticles = gime->RecParticles()->GetEntriesFast() ; | |
990 | ||
7fb46731 | 991 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
992 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
993 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
994 | if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) { | |
995 | AliFatal("RecPoints or TrackSegments not found !") ; | |
996 | } | |
997 | TIter next(trackSegments) ; | |
998 | AliPHOSTrackSegment * ts ; | |
999 | Int_t index = 0 ; | |
1000 | ||
35adb638 | 1001 | Double_t * stof[kSPECIES] ; |
1002 | Double_t * sdp [kSPECIES] ; | |
1003 | Double_t * scpv[kSPECIES] ; | |
fb7b51ad | 1004 | Double_t * sw [kSPECIES] ; |
35adb638 | 1005 | //Info("MakePID","Begin MakePID"); |
1006 | ||
1007 | for (Int_t i =0; i< kSPECIES; i++){ | |
1008 | stof[i] = new Double_t[nparticles] ; | |
1009 | sdp [i] = new Double_t[nparticles] ; | |
1010 | scpv[i] = new Double_t[nparticles] ; | |
fb7b51ad | 1011 | sw [i] = new Double_t[nparticles] ; |
35adb638 | 1012 | } |
1013 | ||
7fb46731 | 1014 | |
1015 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { | |
1016 | ||
1017 | //cout<<">>>>>> Bayesian Index "<<index<<endl; | |
1018 | ||
1019 | AliPHOSEmcRecPoint * emc = 0 ; | |
1020 | if(ts->GetEmcIndex()>=0) | |
1021 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; | |
1022 | ||
1023 | AliPHOSCpvRecPoint * cpv = 0 ; | |
1024 | if(ts->GetCpvIndex()>=0) | |
1025 | cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; | |
cc1fe362 | 1026 | |
7fb46731 | 1027 | // Int_t track = 0 ; |
1028 | // track = ts->GetTrackIndex() ; //TPC tracks ? | |
cc1fe362 | 1029 | |
7fb46731 | 1030 | if (!emc) { |
1031 | AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ; | |
1032 | } | |
c947e71a | 1033 | |
2924941c | 1034 | |
7fb46731 | 1035 | // ############Tof############################# |
c947e71a | 1036 | |
7fb46731 | 1037 | // Info("MakePID", "TOF"); |
fb7b51ad | 1038 | Float_t en = emc->GetEnergy(); |
7fb46731 | 1039 | Double_t time = emc->GetTime() ; |
1040 | // cout<<">>>>>>>Energy "<<en<<"Time "<<time<<endl; | |
fb7b51ad | 1041 | |
35adb638 | 1042 | // now get the signals probability |
1043 | // s(pid) in the Bayesian formulation | |
cc1fe362 | 1044 | |
304864ab | 1045 | stof[AliPID::kPhoton][index] = 1.; |
1046 | stof[AliPID::kElectron][index] = 1.; | |
304864ab | 1047 | stof[AliPID::kEleCon][index] = 1.; |
7fb46731 | 1048 | //We assing the same prob to charged hadrons, sum is 1 |
1049 | stof[AliPID::kPion][index] = 1./3.; | |
1050 | stof[AliPID::kKaon][index] = 1./3.; | |
1051 | stof[AliPID::kProton][index] = 1./3.; | |
1052 | //We assing the same prob to neutral hadrons, sum is 1 | |
1053 | stof[AliPID::kNeutron][index] = 1./2.; | |
1054 | stof[AliPID::kKaon0][index] = 1./2.; | |
304864ab | 1055 | stof[AliPID::kMuon][index] = 1.; |
2924941c | 1056 | |
1057 | if(en < fTOFEnThreshold) { | |
7fb46731 | 1058 | |
1059 | Double_t pTofPion = fTFpiong ->Eval(time) ; //gaus distribution | |
1060 | Double_t pTofKaon = 0; | |
1061 | ||
35adb638 | 1062 | if(time < fTkaonl[1]) |
fb7b51ad | 1063 | pTofKaon = fTFkaong ->Eval(time) ; //gaus distribution |
35adb638 | 1064 | else |
fb7b51ad | 1065 | pTofKaon = fTFkaonl ->Eval(time) ; //landau distribution |
7fb46731 | 1066 | |
1067 | Double_t pTofNucleon = 0; | |
1068 | ||
35adb638 | 1069 | if(time < fThhadronl[1]) |
7fb46731 | 1070 | pTofNucleon = fTFhhadrong ->Eval(time) ; //gaus distribution |
35adb638 | 1071 | else |
7fb46731 | 1072 | pTofNucleon = fTFhhadronl ->Eval(time) ; //landau distribution |
7fb46731 | 1073 | //We assing the same prob to neutral hadrons, sum is the average prob |
fb7b51ad | 1074 | Double_t pTofNeHadron = (pTofKaon + pTofNucleon)/2. ; |
1075 | //We assing the same prob to charged hadrons, sum is the average prob | |
1076 | Double_t pTofChHadron = (pTofPion + pTofKaon + pTofNucleon)/3. ; | |
7fb46731 | 1077 | |
fb7b51ad | 1078 | stof[AliPID::kPhoton][index] = fTFphoton ->Eval(time) ; |
1079 | //gaus distribution | |
1080 | stof[AliPID::kEleCon][index] = stof[AliPID::kPhoton][index] ; | |
1081 | //a conversion electron has the photon ToF | |
304864ab | 1082 | stof[AliPID::kMuon][index] = stof[AliPID::kPhoton][index] ; |
7fb46731 | 1083 | |
fb7b51ad | 1084 | stof[AliPID::kElectron][index] = pTofPion ; |
7fb46731 | 1085 | |
1086 | stof[AliPID::kPion][index] = pTofChHadron ; | |
1087 | stof[AliPID::kKaon][index] = pTofChHadron ; | |
1088 | stof[AliPID::kProton][index] = pTofChHadron ; | |
1089 | ||
1090 | stof[AliPID::kKaon0][index] = pTofNeHadron ; | |
1091 | stof[AliPID::kNeutron][index] = pTofNeHadron ; | |
cc1fe362 | 1092 | } |
c947e71a | 1093 | |
1094 | // Info("MakePID", "Dispersion"); | |
cc1fe362 | 1095 | |
7fb46731 | 1096 | // ###########Shower shape: Dispersion#################### |
35adb638 | 1097 | Float_t dispersion = emc->GetDispersion(); |
1098 | //dispersion is not well defined if the cluster is only in few crystals | |
cc1fe362 | 1099 | |
304864ab | 1100 | sdp[AliPID::kPhoton][index] = 1. ; |
1101 | sdp[AliPID::kElectron][index] = 1. ; | |
1102 | sdp[AliPID::kPion][index] = 1. ; | |
1103 | sdp[AliPID::kKaon][index] = 1. ; | |
1104 | sdp[AliPID::kProton][index] = 1. ; | |
1105 | sdp[AliPID::kNeutron][index] = 1. ; | |
1106 | sdp[AliPID::kEleCon][index] = 1. ; | |
1107 | sdp[AliPID::kKaon0][index] = 1. ; | |
1108 | sdp[AliPID::kMuon][index] = 1. ; | |
c947e71a | 1109 | |
2924941c | 1110 | if(en > fDispEnThreshold && emc->GetMultiplicity() > fDispMultThreshold){ |
7fb46731 | 1111 | sdp[AliPID::kPhoton][index] = GausF(en , dispersion, fDphoton) ; |
304864ab | 1112 | sdp[AliPID::kElectron][index] = sdp[AliPID::kPhoton][index] ; |
1113 | sdp[AliPID::kPion][index] = LandauF(en , dispersion, fDhadron ) ; | |
1114 | sdp[AliPID::kKaon][index] = sdp[AliPID::kPion][index] ; | |
1115 | sdp[AliPID::kProton][index] = sdp[AliPID::kPion][index] ; | |
1116 | sdp[AliPID::kNeutron][index] = sdp[AliPID::kPion][index] ; | |
1117 | sdp[AliPID::kEleCon][index] = sdp[AliPID::kPhoton][index]; | |
1118 | sdp[AliPID::kKaon0][index] = sdp[AliPID::kPion][index] ; | |
fb7b51ad | 1119 | sdp[AliPID::kMuon][index] = fDFmuon ->Eval(dispersion) ; |
1120 | //landau distribution | |
35adb638 | 1121 | } |
cc1fe362 | 1122 | |
7fb46731 | 1123 | // Info("MakePID","multiplicity %d, dispersion %f", emc->GetMultiplicity(), dispersion); |
1124 | // Info("MakePID","ss: photon %f, hadron %f ", sdp[AliPID::kPhoton][index], sdp[AliPID::kPion][index]); | |
c947e71a | 1125 | // cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<", dispersion "<< dispersion<<endl ; |
304864ab | 1126 | // cout<<"<<<<<ss: photon "<<sdp[AliPID::kPhoton][index]<<", hadron "<<sdp[AliPID::kPion][index]<<endl; |
c947e71a | 1127 | |
7fb46731 | 1128 | //########## CPV-EMC Distance####################### |
1129 | // Info("MakePID", "Distance"); | |
fb7b51ad | 1130 | |
26aa7e4a | 1131 | Float_t x = TMath::Abs(ts->GetCpvDistance("X")) ; |
1132 | Float_t z = ts->GetCpvDistance("Z") ; | |
fb7b51ad | 1133 | |
7fb46731 | 1134 | Double_t pcpv = 0 ; |
c947e71a | 1135 | Double_t pcpvneutral = 0. ; |
7fb46731 | 1136 | |
1137 | Double_t elprobx = GausF(en , x, fXelectron) ; | |
1138 | Double_t elprobz = GausF(en , z, fZelectron) ; | |
1139 | Double_t chprobx = GausF(en , x, fXcharged) ; | |
1140 | Double_t chprobz = GausF(en , z, fZcharged) ; | |
c947e71a | 1141 | Double_t pcpvelectron = elprobx * elprobz; |
1142 | Double_t pcpvcharged = chprobx * chprobz; | |
7fb46731 | 1143 | |
1144 | // cout<<">>>>energy "<<en<<endl; | |
c947e71a | 1145 | // cout<<">>>>electron : x "<<x<<" xprob "<<elprobx<<" z "<<z<<" zprob "<<elprobz<<endl; |
1146 | // cout<<">>>>hadron : x "<<x<<" xprob "<<chprobx<<" z "<<z<<" zprob "<<chprobz<<endl; | |
1147 | // cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl; | |
1148 | ||
2924941c | 1149 | // Is neutral or charged? |
35adb638 | 1150 | if(pcpvelectron >= pcpvcharged) |
1151 | pcpv = pcpvelectron ; | |
1152 | else | |
1153 | pcpv = pcpvcharged ; | |
1154 | ||
fb7b51ad | 1155 | if(pcpv < fChargedNeutralThreshold) |
35adb638 | 1156 | { |
1157 | pcpvneutral = 1. ; | |
1158 | pcpvcharged = 0. ; | |
1159 | pcpvelectron = 0. ; | |
1160 | } | |
c947e71a | 1161 | // else |
1162 | // cout<<">>>>>>>>>>>CHARGED>>>>>>>>>>>"<<endl; | |
35adb638 | 1163 | |
304864ab | 1164 | scpv[AliPID::kPion][index] = pcpvcharged ; |
1165 | scpv[AliPID::kKaon][index] = pcpvcharged ; | |
1166 | scpv[AliPID::kProton][index] = pcpvcharged ; | |
7fb46731 | 1167 | |
1168 | scpv[AliPID::kMuon][index] = pcpvelectron ; | |
304864ab | 1169 | scpv[AliPID::kElectron][index] = pcpvelectron ; |
304864ab | 1170 | scpv[AliPID::kEleCon][index] = pcpvelectron ; |
7fb46731 | 1171 | |
1172 | scpv[AliPID::kPhoton][index] = pcpvneutral ; | |
1173 | scpv[AliPID::kNeutron][index] = pcpvneutral ; | |
304864ab | 1174 | scpv[AliPID::kKaon0][index] = pcpvneutral ; |
7fb46731 | 1175 | |
35adb638 | 1176 | |
1177 | // Info("MakePID", "CPV passed"); | |
c947e71a | 1178 | |
7fb46731 | 1179 | //############## Pi0 ############################# |
304864ab | 1180 | stof[AliPID::kPi0][index] = 0. ; |
1181 | scpv[AliPID::kPi0][index] = 0. ; | |
1182 | sdp [AliPID::kPi0][index] = 0. ; | |
c947e71a | 1183 | |
35adb638 | 1184 | if(en > 30.){ |
1185 | // pi0 are detected via decay photon | |
2924941c | 1186 | stof[AliPID::kPi0][index] = stof[AliPID::kPhoton][index]; |
304864ab | 1187 | scpv[AliPID::kPi0][index] = pcpvneutral ; |
2924941c | 1188 | if(emc->GetMultiplicity() > fDispMultThreshold) |
1189 | sdp [AliPID::kPi0][index] = GausF(en , dispersion, fDpi0) ; | |
1190 | //sdp [AliPID::kPi0][index] = GausPol2(en , dispersion, fDpi0) ; | |
1191 | // cout<<"E = "<<en<<" GeV; disp = "<<dispersion<<"; mult = " | |
1192 | // <<emc->GetMultiplicity()<<endl; | |
1193 | // cout<<"PDF: photon = "<<sdp [AliPID::kPhoton][index]<<"; pi0 = " | |
1194 | // <<sdp [AliPID::kPi0][index]<<endl; | |
35adb638 | 1195 | } |
1196 | ||
2924941c | 1197 | |
7fb46731 | 1198 | |
2924941c | 1199 | |
7fb46731 | 1200 | //############## muon ############################# |
1201 | ||
35adb638 | 1202 | if(en > 0.5){ |
1203 | //Muons deposit few energy | |
304864ab | 1204 | scpv[AliPID::kMuon][index] = 0 ; |
1205 | stof[AliPID::kMuon][index] = 0 ; | |
1206 | sdp [AliPID::kMuon][index] = 0 ; | |
c947e71a | 1207 | } |
1208 | ||
fb7b51ad | 1209 | //Weight to apply to hadrons due to energy reconstruction |
1210 | ||
1211 | Float_t weight = fERecWeight ->Eval(en) ; | |
1212 | ||
1213 | sw[AliPID::kPhoton][index] = 1. ; | |
1214 | sw[AliPID::kElectron][index] = 1. ; | |
1215 | sw[AliPID::kPion][index] = weight ; | |
1216 | sw[AliPID::kKaon][index] = weight ; | |
1217 | sw[AliPID::kProton][index] = weight ; | |
1218 | sw[AliPID::kNeutron][index] = weight ; | |
1219 | sw[AliPID::kEleCon][index] = 1. ; | |
1220 | sw[AliPID::kKaon0][index] = weight ; | |
1221 | sw[AliPID::kMuon][index] = weight ; | |
1222 | sw[AliPID::kPi0][index] = 1. ; | |
1223 | ||
7fb46731 | 1224 | // if(en > 0.5){ |
1225 | // cout<<"######################################################"<<endl; | |
1226 | // //cout<<"MakePID: energy "<<en<<", tof "<<time<<", distance "<<distance<<", dispersion "<<dispersion<<endl ; | |
1227 | // cout<<"MakePID: energy "<<en<<", tof "<<time<<", dispersion "<<dispersion<<", x "<<x<<", z "<<z<<endl ; | |
1228 | // cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<endl; | |
1229 | // cout<<">>>>electron : xprob "<<elprobx<<" zprob "<<elprobz<<endl; | |
1230 | // cout<<">>>>hadron : xprob "<<chprobx<<" zprob "<<chprobz<<endl; | |
1231 | // cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl; | |
c947e71a | 1232 | |
2924941c | 1233 | // cout<<"Photon , pid "<< fInitPID[AliPID::kPhoton]<<" tof "<<stof[AliPID::kPhoton][index] |
1234 | // <<", cpv "<<scpv[AliPID::kPhoton][index]<<", ss "<<sdp[AliPID::kPhoton][index]<<endl; | |
7fb46731 | 1235 | // cout<<"EleCon , pid "<< fInitPID[AliPID::kEleCon]<<", tof "<<stof[AliPID::kEleCon][index] |
1236 | // <<", cpv "<<scpv[AliPID::kEleCon][index]<<" ss "<<sdp[AliPID::kEleCon][index]<<endl; | |
1237 | // cout<<"Electron , pid "<< fInitPID[AliPID::kElectron]<<", tof "<<stof[AliPID::kElectron][index] | |
1238 | // <<", cpv "<<scpv[AliPID::kElectron][index]<<" ss "<<sdp[AliPID::kElectron][index]<<endl; | |
1239 | // cout<<"Muon , pid "<< fInitPID[AliPID::kMuon]<<", tof "<<stof[AliPID::kMuon][index] | |
1240 | // <<", cpv "<<scpv[AliPID::kMuon][index]<<" ss "<<sdp[AliPID::kMuon][index]<<endl; | |
2924941c | 1241 | // cout<<"Pi0 , pid "<< fInitPID[AliPID::kPi0]<<", tof "<<stof[AliPID::kPi0][index] |
1242 | // <<", cpv "<<scpv[AliPID::kPi0][index]<<" ss "<<sdp[AliPID::kPi0][index]<<endl; | |
7fb46731 | 1243 | // cout<<"Pion , pid "<< fInitPID[AliPID::kPion]<<", tof "<<stof[AliPID::kPion][index] |
1244 | // <<", cpv "<<scpv[AliPID::kPion][index]<<" ss "<<sdp[AliPID::kPion][index]<<endl; | |
1245 | // cout<<"Kaon0 , pid "<< fInitPID[AliPID::kKaon0]<<", tof "<<stof[AliPID::kKaon0][index] | |
1246 | // <<", cpv "<<scpv[AliPID::kKaon0][index]<<" ss "<<sdp[AliPID::kKaon0][index]<<endl; | |
1247 | // cout<<"Kaon , pid "<< fInitPID[AliPID::kKaon]<<", tof "<<stof[AliPID::kKaon][index] | |
1248 | // <<", cpv "<<scpv[AliPID::kKaon][index]<<" ss "<<sdp[AliPID::kKaon][index]<<endl; | |
1249 | // cout<<"Neutron , pid "<< fInitPID[AliPID::kNeutron]<<", tof "<<stof[AliPID::kNeutron][index] | |
1250 | // <<", cpv "<<scpv[AliPID::kNeutron][index]<<" ss "<<sdp[AliPID::kNeutron][index]<<endl; | |
1251 | // cout<<"Proton , pid "<< fInitPID[AliPID::kProton]<<", tof "<<stof[AliPID::kProton][index] | |
1252 | // <<", cpv "<<scpv[AliPID::kProton][index]<<" ss "<<sdp[AliPID::kProton][index]<<endl; | |
1253 | // cout<<"######################################################"<<endl; | |
1254 | // } | |
1255 | index++; | |
cc1fe362 | 1256 | } |
35adb638 | 1257 | |
1258 | //for (index = 0 ; index < kSPECIES ; index++) | |
1259 | // pid[index] /= nparticles ; | |
1260 | ||
7fb46731 | 1261 | |
35adb638 | 1262 | // Info("MakePID", "Total Probability calculation"); |
1263 | ||
cc1fe362 | 1264 | for(index = 0 ; index < nparticles ; index ++) { |
2924941c | 1265 | |
1266 | AliPHOSRecParticle * recpar = gime->RecParticle(index) ; | |
1267 | ||
1268 | //Conversion electron? | |
1269 | ||
1270 | if(recpar->IsEleCon()){ | |
1271 | fInitPID[AliPID::kEleCon] = 1. ; | |
1272 | fInitPID[AliPID::kPhoton] = 0. ; | |
1273 | fInitPID[AliPID::kElectron] = 0. ; | |
1274 | } | |
1275 | else{ | |
1276 | fInitPID[AliPID::kEleCon] = 0. ; | |
1277 | fInitPID[AliPID::kPhoton] = 1. ; | |
1278 | fInitPID[AliPID::kElectron] = 1. ; | |
1279 | } | |
1280 | // fInitPID[AliPID::kEleCon] = 0. ; | |
1281 | ||
1282 | ||
cc1fe362 | 1283 | // calculates the Bayesian weight |
7fb46731 | 1284 | |
cc1fe362 | 1285 | Int_t jndex ; |
1286 | Double_t wn = 0.0 ; | |
1287 | for (jndex = 0 ; jndex < kSPECIES ; jndex++) | |
2924941c | 1288 | wn += stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * |
1289 | sw[jndex][index] * fInitPID[jndex] ; | |
1290 | ||
7fb46731 | 1291 | // cout<<"*************wn "<<wn<<endl; |
e74ea0e9 | 1292 | if (TMath::Abs(wn)>0) |
1293 | for (jndex = 0 ; jndex < kSPECIES ; jndex++) { | |
35adb638 | 1294 | //cout<<"jndex "<<jndex<<" wn "<<wn<<" SetPID * wn" |
1295 | //<<stof[jndex][index] * sdp[jndex][index] * pid[jndex] << endl; | |
1296 | //cout<<" tof "<<stof[jndex][index] << " disp " <<sdp[jndex][index] << " pid "<< fInitPID[jndex] << endl; | |
2924941c | 1297 | // if(jndex == AliPID::kPi0 || jndex == AliPID::kPhoton){ |
1298 | // cout<<"Particle "<<jndex<<" final prob * wn " | |
1299 | // <<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * | |
1300 | // fInitPID[jndex] <<" wn "<< wn<<endl; | |
1301 | // cout<<"pid "<< fInitPID[jndex]<<", tof "<<stof[jndex][index] | |
1302 | // <<", cpv "<<scpv[jndex][index]<<" ss "<<sdp[jndex][index]<<endl; | |
1303 | // } | |
1304 | recpar->SetPID(jndex, stof[jndex][index] * sdp[jndex][index] * | |
1305 | sw[jndex][index] * scpv[jndex][index] * | |
1306 | fInitPID[jndex] / wn) ; | |
e74ea0e9 | 1307 | } |
2cc71c1e | 1308 | } |
35adb638 | 1309 | // Info("MakePID", "Delete"); |
1310 | ||
2924941c | 1311 | for (Int_t i =0; i< kSPECIES; i++){ |
1312 | delete [] stof[i]; | |
1313 | delete [] sdp [i]; | |
1314 | delete [] scpv[i]; | |
1315 | delete [] sw [i]; | |
1316 | } | |
35adb638 | 1317 | // Info("MakePID","End MakePID"); |
2cc71c1e | 1318 | } |
1319 | ||
7acf6008 | 1320 | //____________________________________________________________________________ |
e3817e5f | 1321 | void AliPHOSPIDv1::MakeRecParticles() |
1322 | { | |
b2a60966 | 1323 | // Makes a RecParticle out of a TrackSegment |
148b2bba | 1324 | |
88cb7938 | 1325 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
fbf811ec | 1326 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
1327 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
1328 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
148b2bba | 1329 | if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) { |
351dd634 | 1330 | AliFatal("RecPoints or TrackSegments not found !") ; |
148b2bba | 1331 | } |
fbf811ec | 1332 | TClonesArray * recParticles = gime->RecParticles() ; |
01a599c9 | 1333 | recParticles->Clear(); |
148b2bba | 1334 | |
7b7c1533 | 1335 | TIter next(trackSegments) ; |
7acf6008 | 1336 | AliPHOSTrackSegment * ts ; |
6ad0bfa0 | 1337 | Int_t index = 0 ; |
09fc14a0 | 1338 | AliPHOSRecParticle * rp ; |
7acf6008 | 1339 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { |
7fb46731 | 1340 | // cout<<">>>>>>>>>>>>>>>PCA Index "<<index<<endl; |
7b7c1533 | 1341 | new( (*recParticles)[index] ) AliPHOSRecParticle() ; |
1342 | rp = (AliPHOSRecParticle *)recParticles->At(index) ; | |
f0a4c9e9 | 1343 | rp->SetTrackSegment(index) ; |
9688c1dd | 1344 | rp->SetIndexInList(index) ; |
148b2bba | 1345 | |
7acf6008 | 1346 | AliPHOSEmcRecPoint * emc = 0 ; |
1347 | if(ts->GetEmcIndex()>=0) | |
7b7c1533 | 1348 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; |
fad3e5b9 | 1349 | |
8d4608b5 | 1350 | AliPHOSCpvRecPoint * cpv = 0 ; |
7acf6008 | 1351 | if(ts->GetCpvIndex()>=0) |
8d4608b5 | 1352 | cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; |
fad3e5b9 | 1353 | |
bd76890a | 1354 | Int_t track = 0 ; |
1355 | track = ts->GetTrackIndex() ; | |
1356 | ||
148b2bba | 1357 | // Now set type (reconstructed) of the particle |
1358 | ||
1359 | // Choose the cluster energy range | |
9fa5f1d0 | 1360 | |
fbf811ec | 1361 | if (!emc) { |
351dd634 | 1362 | AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ; |
fbf811ec | 1363 | } |
50739f15 | 1364 | |
e3817e5f | 1365 | Float_t e = emc->GetEnergy() ; |
bc0c084c | 1366 | |
6f969528 | 1367 | Float_t lambda[2] ; |
1368 | emc->GetElipsAxis(lambda) ; | |
50739f15 | 1369 | |
1370 | if((lambda[0]>0.01) && (lambda[1]>0.01)){ | |
1371 | // Looking PCA. Define and calculate the data (X), | |
bc0c084c | 1372 | // introduce in the function X2P that gives the components (P). |
1373 | ||
c947e71a | 1374 | Float_t spher = 0. ; |
1375 | Float_t emaxdtotal = 0. ; | |
50739f15 | 1376 | |
bc0c084c | 1377 | if((lambda[0]+lambda[1])!=0) |
e4df4b30 | 1378 | spher=TMath::Abs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]); |
50739f15 | 1379 | |
c947e71a | 1380 | emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy(); |
50739f15 | 1381 | |
1382 | fX[0] = lambda[0] ; | |
1383 | fX[1] = lambda[1] ; | |
1384 | fX[2] = emc->GetDispersion() ; | |
c947e71a | 1385 | fX[3] = spher ; |
50739f15 | 1386 | fX[4] = emc->GetMultiplicity() ; |
c947e71a | 1387 | fX[5] = emaxdtotal ; |
50739f15 | 1388 | fX[6] = emc->GetCoreEnergy() ; |
1389 | ||
e3817e5f | 1390 | fPrincipalPhoton->X2P(fX,fPPhoton); |
1391 | fPrincipalPi0 ->X2P(fX,fPPi0); | |
1f0e7ccd | 1392 | |
50739f15 | 1393 | } |
1394 | else{ | |
e3817e5f | 1395 | fPPhoton[0]=-100.0; //We do not accept clusters with |
1396 | fPPhoton[1]=-100.0; //one cell as a photon-like | |
1397 | fPPi0[0] =-100.0; | |
1398 | fPPi0[1] =-100.0; | |
50739f15 | 1399 | } |
1400 | ||
2cc71c1e | 1401 | Float_t time = emc->GetTime() ; |
1402 | rp->SetTof(time) ; | |
9fa5f1d0 | 1403 | |
bc0c084c | 1404 | // Loop of Efficiency-Purity (the 3 points of purity or efficiency |
1405 | // are taken into account to set the particle identification) | |
e3817e5f | 1406 | for(Int_t effPur = 0; effPur < 3 ; effPur++){ |
50739f15 | 1407 | |
bc0c084c | 1408 | // Looking at the CPV detector. If RCPV greater than CpvEmcDistance, |
1409 | // 1st,2nd or 3rd bit (depending on the efficiency-purity point ) | |
1410 | // is set to 1 | |
26aa7e4a | 1411 | if(GetCPVBit(ts, effPur,e) == 1 ){ |
e3817e5f | 1412 | rp->SetPIDBit(effPur) ; |
35adb638 | 1413 | //cout<<"CPV bit "<<effPur<<endl; |
1414 | } | |
50739f15 | 1415 | // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th |
1416 | // bit (depending on the efficiency-purity point )is set to 1 | |
2cc71c1e | 1417 | if(time< (*fParameters)(3,effPur)) |
e3817e5f | 1418 | rp->SetPIDBit(effPur+3) ; |
2cc71c1e | 1419 | |
e3817e5f | 1420 | //Photon PCA |
50739f15 | 1421 | //If we are inside the ellipse, 7th, 8th or 9th |
1422 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 1423 | if(GetPrincipalBit("photon",fPPhoton,effPur,e) == 1) |
1424 | rp->SetPIDBit(effPur+6) ; | |
1f0e7ccd | 1425 | |
e3817e5f | 1426 | //Pi0 PCA |
1f0e7ccd | 1427 | //If we are inside the ellipse, 10th, 11th or 12th |
1428 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 1429 | if(GetPrincipalBit("pi0" ,fPPi0 ,effPur,e) == 1) |
1430 | rp->SetPIDBit(effPur+9) ; | |
f0a4c9e9 | 1431 | } |
e3817e5f | 1432 | if(GetHardPhotonBit(emc)) |
1433 | rp->SetPIDBit(12) ; | |
1434 | if(GetHardPi0Bit (emc)) | |
1435 | rp->SetPIDBit(13) ; | |
1f0e7ccd | 1436 | |
bd76890a | 1437 | if(track >= 0) |
1438 | rp->SetPIDBit(14) ; | |
1439 | ||
9fa5f1d0 | 1440 | //Set momentum, energy and other parameters |
50739f15 | 1441 | Float_t encal = GetCalibratedEnergy(e); |
9fa5f1d0 | 1442 | TVector3 dir = GetMomentumDirection(emc,cpv) ; |
1443 | dir.SetMag(encal) ; | |
1444 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),encal) ; | |
1445 | rp->SetCalcMass(0); | |
e0ed2e49 | 1446 | rp->Name(); //If photon sets the particle pdg name to gamma |
e747b8da | 1447 | rp->SetProductionVertex(0,0,0,0); |
1448 | rp->SetFirstMother(-1); | |
1449 | rp->SetLastMother(-1); | |
1450 | rp->SetFirstDaughter(-1); | |
1451 | rp->SetLastDaughter(-1); | |
1452 | rp->SetPolarisation(0,0,0); | |
d956e9b7 | 1453 | //Set the position in global coordinate system from the RecPoint |
1454 | AliPHOSGeometry * geom = gime->PHOSGeometry() ; | |
1455 | AliPHOSTrackSegment * ts = gime->TrackSegment(rp->GetPHOSTSIndex()) ; | |
1456 | AliPHOSEmcRecPoint * erp = gime->EmcRecPoint(ts->GetEmcIndex()) ; | |
1457 | TVector3 pos ; | |
1458 | geom->GetGlobal(erp, pos) ; | |
1459 | rp->SetPos(pos); | |
6ad0bfa0 | 1460 | index++ ; |
1461 | } | |
6ad0bfa0 | 1462 | } |
e3817e5f | 1463 | |
09fc14a0 | 1464 | //____________________________________________________________________________ |
702ab87e | 1465 | void AliPHOSPIDv1::Print(const Option_t *) const |
09fc14a0 | 1466 | { |
b2a60966 | 1467 | // Print the parameters used for the particle type identification |
bc0c084c | 1468 | |
351dd634 | 1469 | AliInfo("=============== AliPHOSPIDv1 ================") ; |
88cb7938 | 1470 | printf("Making PID\n") ; |
1471 | printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileNamePrincipalPhoton.Data() ) ; | |
1472 | printf(" Name of parameters file %s\n", fFileNameParameters.Data() ) ; | |
1473 | printf(" Matrix of Parameters: 14x4\n") ; | |
1474 | printf(" Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n") ; | |
1475 | printf(" RCPV 2x3 rows x and z, columns function cut parameters\n") ; | |
1476 | printf(" TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n") ; | |
1477 | printf(" PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n") ; | |
1478 | Printf(" Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n") ; | |
50739f15 | 1479 | fParameters->Print() ; |
09fc14a0 | 1480 | } |
1481 | ||
a496c46c | 1482 | |
69183710 | 1483 | |
7acf6008 | 1484 | //____________________________________________________________________________ |
a4e98857 | 1485 | void AliPHOSPIDv1::PrintRecParticles(Option_t * option) |
1486 | { | |
dd5c4038 | 1487 | // Print table of reconstructed particles |
1488 | ||
88cb7938 | 1489 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; |
bf8f1fbd | 1490 | |
88cb7938 | 1491 | TClonesArray * recParticles = gime->RecParticles() ; |
21cd0c07 | 1492 | |
1493 | TString message ; | |
3bf72d32 | 1494 | message = "\nevent " ; |
1495 | message += gAlice->GetEvNumber() ; | |
1496 | message += " found " ; | |
1497 | message += recParticles->GetEntriesFast(); | |
1498 | message += " RecParticles\n" ; | |
1499 | ||
7acf6008 | 1500 | if(strstr(option,"all")) { // printing found TS |
3bf72d32 | 1501 | message += "\n PARTICLE Index \n" ; |
7acf6008 | 1502 | |
1503 | Int_t index ; | |
7b7c1533 | 1504 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { |
21cd0c07 | 1505 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; |
3bf72d32 | 1506 | message += "\n" ; |
1507 | message += rp->Name().Data() ; | |
1508 | message += " " ; | |
1509 | message += rp->GetIndexInList() ; | |
1510 | message += " " ; | |
1511 | message += rp->GetType() ; | |
7acf6008 | 1512 | } |
3bf72d32 | 1513 | } |
351dd634 | 1514 | AliInfo(message.Data() ) ; |
69183710 | 1515 | } |
88cb7938 | 1516 | |
1517 | //____________________________________________________________________________ | |
1518 | void AliPHOSPIDv1::SetParameters() | |
1519 | { | |
1520 | // PCA : To do the Principal Components Analysis it is necessary | |
1521 | // the Principal file, which is opened here | |
1522 | fX = new double[7]; // Data for the PCA | |
1523 | fPPhoton = new double[7]; // Eigenvalues of the PCA | |
1524 | fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA | |
1525 | ||
1526 | // Read photon principals from the photon file | |
1527 | ||
1528 | fFileNamePrincipalPhoton = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ; | |
1529 | TFile f( fFileNamePrincipalPhoton.Data(), "read" ) ; | |
1530 | fPrincipalPhoton = dynamic_cast<TPrincipal*> (f.Get("principal")) ; | |
1531 | f.Close() ; | |
1532 | ||
1533 | // Read pi0 principals from the pi0 file | |
1534 | ||
1535 | fFileNamePrincipalPi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ; | |
1536 | TFile fPi0( fFileNamePrincipalPi0.Data(), "read" ) ; | |
1537 | fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ; | |
1538 | fPi0.Close() ; | |
1539 | ||
1540 | // Open parameters file and initialization of the Parameters matrix. | |
1541 | // In the File Parameters.dat are all the parameters. These are introduced | |
1542 | // in a matrix of 16x4 | |
1543 | // | |
1544 | // All the parameters defined in this file are, in order of row: | |
1545 | // line 0 : calibration | |
1546 | // lines 1,2 : CPV rectangular cat for X and Z | |
1547 | // line 3 : TOF cut | |
1548 | // lines 4-8 : parameters to calculate photon PCA ellipse | |
1549 | // lines 9-13: parameters to calculate pi0 PCA ellipse | |
1550 | // lines 14-15: parameters to calculate border for high-pt photons and pi0 | |
1551 | ||
1552 | fFileNameParameters = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat"); | |
e8d02863 | 1553 | fParameters = new TMatrixF(16,4) ; |
c947e71a | 1554 | const Int_t kMaxLeng=255; |
1555 | char string[kMaxLeng]; | |
88cb7938 | 1556 | |
1557 | // Open a text file with PID parameters | |
1558 | FILE *fd = fopen(fFileNameParameters.Data(),"r"); | |
1559 | if (!fd) | |
351dd634 | 1560 | AliFatal(Form("File %s with a PID parameters cannot be opened\n", |
1561 | fFileNameParameters.Data())); | |
88cb7938 | 1562 | |
1563 | Int_t i=0; | |
1564 | // Read parameter file line-by-line and skip empty line and comments | |
c947e71a | 1565 | while (fgets(string,kMaxLeng,fd) != NULL) { |
88cb7938 | 1566 | if (string[0] == '\n' ) continue; |
1567 | if (string[0] == '!' ) continue; | |
1568 | sscanf(string, "%f %f %f %f", | |
1569 | &(*fParameters)(i,0), &(*fParameters)(i,1), | |
1570 | &(*fParameters)(i,2), &(*fParameters)(i,3)); | |
1571 | i++; | |
351dd634 | 1572 | AliDebug(1, Form("SetParameters", "line %d: %s",i,string)); |
88cb7938 | 1573 | } |
1574 | fclose(fd); | |
1575 | } | |
1576 | ||
1577 | //____________________________________________________________________________ | |
1578 | void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param) | |
1579 | { | |
1580 | // Set parameter "Calibration" i to a value param | |
351dd634 | 1581 | if(i>2 || i<0) { |
1582 | AliError(Form("Invalid parameter number: %d",i)); | |
1583 | } else | |
88cb7938 | 1584 | (*fParameters)(0,i) = param ; |
1585 | } | |
1586 | ||
1587 | //____________________________________________________________________________ | |
1588 | void AliPHOSPIDv1::SetParameterCpv2Emc(Int_t i, TString axis, Float_t cut) | |
1589 | { | |
1590 | // Set the parameters to calculate Cpv-to-Emc Distance Cut depending on | |
1591 | // Purity-Efficiency point i | |
1592 | ||
351dd634 | 1593 | if(i>2 || i<0) { |
1594 | AliError(Form("Invalid parameter number: %d",i)); | |
1595 | } else { | |
88cb7938 | 1596 | axis.ToLower(); |
1597 | if (axis == "x") (*fParameters)(1,i) = cut; | |
1598 | else if (axis == "z") (*fParameters)(2,i) = cut; | |
351dd634 | 1599 | else { |
1600 | AliError(Form("Invalid axis name: %s",axis.Data())); | |
1601 | } | |
88cb7938 | 1602 | } |
1603 | } | |
1604 | ||
1605 | //____________________________________________________________________________ | |
1606 | void AliPHOSPIDv1::SetParameterPhotonBoundary(Int_t i,Float_t param) | |
1607 | { | |
1608 | // Set parameter "Hard photon boundary" i to a value param | |
351dd634 | 1609 | if(i>4 || i<0) { |
1610 | AliError(Form("Invalid parameter number: %d",i)); | |
1611 | } else | |
88cb7938 | 1612 | (*fParameters)(14,i) = param ; |
1613 | } | |
1614 | ||
1615 | //____________________________________________________________________________ | |
1616 | void AliPHOSPIDv1::SetParameterPi0Boundary(Int_t i,Float_t param) | |
1617 | { | |
1618 | // Set parameter "Hard pi0 boundary" i to a value param | |
351dd634 | 1619 | if(i>1 || i<0) { |
1620 | AliError(Form("Invalid parameter number: %d",i)); | |
1621 | } else | |
88cb7938 | 1622 | (*fParameters)(15,i) = param ; |
1623 | } | |
1624 | ||
1625 | //_____________________________________________________________________________ | |
1626 | void AliPHOSPIDv1::SetParameterTimeGate(Int_t i, Float_t gate) | |
1627 | { | |
1628 | // Set the parameter TimeGate depending on Purity-Efficiency point i | |
351dd634 | 1629 | if (i>2 || i<0) { |
1630 | AliError(Form("Invalid Efficiency-Purity choice %d",i)); | |
1631 | } else | |
88cb7938 | 1632 | (*fParameters)(3,i)= gate ; |
1633 | } | |
1634 | ||
1635 | //_____________________________________________________________________________ | |
1636 | void AliPHOSPIDv1::SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t par) | |
1637 | { | |
1638 | // Set the parameter "i" that is needed to calculate the ellipse | |
1639 | // parameter "param" for a particle "particle" | |
1640 | ||
1641 | particle.ToLower(); | |
1642 | param. ToLower(); | |
1643 | Int_t p= -1; | |
1644 | Int_t offset=0; | |
1645 | ||
1646 | if (particle == "photon") offset=0; | |
1647 | else if (particle == "pi0") offset=5; | |
1648 | else | |
351dd634 | 1649 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", |
1650 | particle.Data())); | |
88cb7938 | 1651 | |
1652 | if (param.Contains("a")) p=4+offset; | |
1653 | else if(param.Contains("b")) p=5+offset; | |
1654 | else if(param.Contains("c")) p=6+offset; | |
1655 | else if(param.Contains("x0"))p=7+offset; | |
1656 | else if(param.Contains("y0"))p=8+offset; | |
351dd634 | 1657 | if((i>4)||(i<0)) { |
1658 | AliError(Form("No parameter with index %d", i)) ; | |
1659 | } else if(p==-1) { | |
1660 | AliError(Form("No parameter with name %s", param.Data() )) ; | |
1661 | } else | |
88cb7938 | 1662 | (*fParameters)(p,i) = par ; |
1663 | } | |
1664 | ||
1665 | //____________________________________________________________________________ | |
1666 | void AliPHOSPIDv1::Unload() | |
1667 | { | |
c947e71a | 1668 | //Unloads RecPoints, Tracks and RecParticles |
88cb7938 | 1669 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
1670 | gime->PhosLoader()->UnloadRecPoints() ; | |
1671 | gime->PhosLoader()->UnloadTracks() ; | |
1672 | gime->PhosLoader()->UnloadRecParticles() ; | |
1673 | } | |
1674 | ||
1675 | //____________________________________________________________________________ | |
90cceaf6 | 1676 | void AliPHOSPIDv1::WriteRecParticles() |
88cb7938 | 1677 | { |
c947e71a | 1678 | //It writes reconstructed particles and pid to file |
1679 | ||
88cb7938 | 1680 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; |
1681 | ||
1682 | TClonesArray * recParticles = gime->RecParticles() ; | |
1683 | recParticles->Expand(recParticles->GetEntriesFast() ) ; | |
adcca1e6 | 1684 | if(fWrite){ |
1685 | TTree * treeP = gime->TreeP(); | |
1686 | ||
1687 | //First rp | |
1688 | Int_t bufferSize = 32000 ; | |
1689 | TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize); | |
1690 | rpBranch->SetTitle(BranchName()); | |
1691 | ||
1692 | rpBranch->Fill() ; | |
1693 | ||
1694 | gime->WriteRecParticles("OVERWRITE"); | |
1695 | gime->WritePID("OVERWRITE"); | |
1696 | } | |
88cb7938 | 1697 | } |
1698 | ||
35adb638 | 1699 | |
1700 | //_______________________________________________________________________ | |
1701 | void AliPHOSPIDv1::SetInitPID(const Double_t *p) { | |
1702 | // Sets values for the initial population of each particle type | |
304864ab | 1703 | for (Int_t i=0; i<AliPID::kSPECIESN; i++) fInitPID[i] = p[i]; |
35adb638 | 1704 | } |
1705 | //_______________________________________________________________________ | |
1706 | void AliPHOSPIDv1::GetInitPID(Double_t *p) const { | |
1707 | // Gets values for the initial population of each particle type | |
304864ab | 1708 | for (Int_t i=0; i<AliPID::kSPECIESN; i++) p[i] = fInitPID[i]; |
35adb638 | 1709 | } |