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