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6ad0bfa0 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
b2a60966 | 16 | /* $Id$ */ |
17 | ||
6ad0bfa0 | 18 | //_________________________________________________________________________ |
b2a60966 | 19 | // Implementation version v1 of the PHOS particle identifier |
7acf6008 | 20 | // Particle identification based on the |
148b2bba | 21 | // - RCPV: distance from CPV recpoint to EMCA recpoint. |
22 | // - TOF | |
23 | // - PCA: Principal Components Analysis.. | |
24 | // The identified particle has an identification number corresponding | |
25 | // to a 9 bits number: | |
bc0c084c | 26 | // -Bit 0 to 2: bit set if RCPV > CpvEmcDistance (each bit corresponds |
148b2bba | 27 | // to a different efficiency-purity point of the photon identification) |
bc0c084c | 28 | // -Bit 3 to 5: bit set if TOF < TimeGate (each bit corresponds |
148b2bba | 29 | // to a different efficiency-purity point of the photon identification) |
30 | // -Bit 6 to 9: bit set if Principal Components are | |
50739f15 | 31 | // inside an ellipse defined by the parameters a, b, c, x0 and y0. |
148b2bba | 32 | // (each bit corresponds to a different efficiency-purity point of the |
50739f15 | 33 | // photon identification) |
34 | // The PCA (Principal components analysis) needs a file that contains | |
35 | // a previous analysis of the correlations between the particles. This | |
bc0c084c | 36 | // file is $ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root. Analysis done for |
50739f15 | 37 | // energies between 0.5 and 100 GeV. |
9fa5f1d0 | 38 | // A calibrated energy is calculated. The energy of the reconstructed |
50739f15 | 39 | // cluster is corrected with the formula A + B * E + C * E^2, whose |
bc0c084c | 40 | // parameters where obtained through the study of the reconstructed |
50739f15 | 41 | // energy distribution of monoenergetic photons. |
a4e98857 | 42 | // |
bc0c084c | 43 | // All the parameters (RCPV(2 rows-3 columns),TOF(1r-3c),PCA(5r-4c) |
50739f15 | 44 | // and calibration(1r-3c))are stored in a file called |
45 | // $ALICE_ROOT/PHOS/Parameters.dat. Each time that AliPHOSPIDv1 is | |
bc0c084c | 46 | // initialized, this parameters are copied to a Matrix (9,4), a |
50739f15 | 47 | // TMatrixD object. |
7acf6008 | 48 | // |
a4e98857 | 49 | // use case: |
50739f15 | 50 | // root [0] AliPHOSPIDv1 * p = new AliPHOSPIDv1("galice1.root") |
a4e98857 | 51 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50739f15 | 52 | // // reading headers from file galice1.root and create RecParticles |
53 | // TrackSegments and RecPoints are used | |
54 | // // set file name for the branch RecParticles | |
f0a4c9e9 | 55 | // root [1] p->ExecuteTask("deb all time") |
50739f15 | 56 | // // available options |
57 | // // "deb" - prints # of reconstructed particles | |
58 | // // "deb all" - prints # and list of RecParticles | |
59 | // // "time" - prints benchmarking results | |
7acf6008 | 60 | // |
50739f15 | 61 | // root [2] AliPHOSPIDv1 * p2 = new AliPHOSPIDv1("galice1.root","v1",kTRUE) |
148b2bba | 62 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
50739f15 | 63 | // //Split mode. |
f0a4c9e9 | 64 | // root [3] p2->ExecuteTask() |
65 | // | |
50739f15 | 66 | |
f0a4c9e9 | 67 | |
7acf6008 | 68 | //*-- Author: Yves Schutz (SUBATECH) & Gines Martinez (SUBATECH) & |
148b2bba | 69 | // Gustavo Conesa April 2002 |
50739f15 | 70 | // PCA redesigned by Gustavo Conesa October 2002: |
71 | // The way of using the PCA has changed. Instead of 2 | |
72 | // files with the PCA, each one with different energy ranges | |
73 | // of application, we use the wide one (0.5-100 GeV), and instead | |
bc0c084c | 74 | // of fixing 3 ellipses for different ranges of energy, it has been |
50739f15 | 75 | // studied the dependency of the ellipses parameters with the |
76 | // energy, and they are implemented in the code as a funtion | |
77 | // of the energy. | |
78 | // | |
79 | // | |
80 | // | |
6ad0bfa0 | 81 | // --- ROOT system --- |
c947e71a | 82 | |
83 | ||
84 | // --- Standard library --- | |
acb5beb7 | 85 | #include "TFormula.h" |
7acf6008 | 86 | #include "TBenchmark.h" |
148b2bba | 87 | #include "TPrincipal.h" |
c947e71a | 88 | #include "TFile.h" |
e3817e5f | 89 | #include "TSystem.h" |
148b2bba | 90 | |
6ad0bfa0 | 91 | // --- AliRoot header files --- |
c947e71a | 92 | //#include "AliLog.h" |
7acf6008 | 93 | #include "AliGenerator.h" |
e3817e5f | 94 | #include "AliPHOS.h" |
26d4b141 | 95 | #include "AliPHOSPIDv1.h" |
7b7c1533 | 96 | #include "AliPHOSGetter.h" |
6ad0bfa0 | 97 | |
26d4b141 | 98 | ClassImp( AliPHOSPIDv1) |
6ad0bfa0 | 99 | |
1cb7c1ee | 100 | //____________________________________________________________________________ |
101 | AliPHOSPIDv1::AliPHOSPIDv1():AliPHOSPID() | |
102 | { | |
a4e98857 | 103 | // default ctor |
148b2bba | 104 | |
8d0f3f77 | 105 | InitParameters() ; |
92f521a9 | 106 | fDefaultInit = kTRUE ; |
7acf6008 | 107 | } |
108 | ||
581354c5 | 109 | //____________________________________________________________________________ |
88cb7938 | 110 | AliPHOSPIDv1::AliPHOSPIDv1(const AliPHOSPIDv1 & pid ):AliPHOSPID(pid) |
581354c5 | 111 | { |
386aef34 | 112 | // ctor |
581354c5 | 113 | InitParameters() ; |
581354c5 | 114 | Init() ; |
581354c5 | 115 | |
116 | } | |
117 | ||
7acf6008 | 118 | //____________________________________________________________________________ |
88cb7938 | 119 | AliPHOSPIDv1::AliPHOSPIDv1(const TString alirunFileName, const TString eventFolderName):AliPHOSPID(alirunFileName, eventFolderName) |
7acf6008 | 120 | { |
a4e98857 | 121 | //ctor with the indication on where to look for the track segments |
7b7c1533 | 122 | |
8d0f3f77 | 123 | InitParameters() ; |
2bd5457f | 124 | Init() ; |
92f521a9 | 125 | fDefaultInit = kFALSE ; |
7acf6008 | 126 | } |
7b7c1533 | 127 | |
7acf6008 | 128 | //____________________________________________________________________________ |
129 | AliPHOSPIDv1::~AliPHOSPIDv1() | |
130 | { | |
79bb1b62 | 131 | // dtor |
acb5beb7 | 132 | fPrincipalPhoton = 0; |
133 | fPrincipalPi0 = 0; | |
9fa5f1d0 | 134 | |
e3817e5f | 135 | delete [] fX ; // Principal input |
136 | delete [] fPPhoton ; // Photon Principal components | |
137 | delete [] fPPi0 ; // Pi0 Principal components | |
acb5beb7 | 138 | |
139 | delete fParameters; | |
140 | delete fTFphoton; | |
141 | delete fTFpiong; | |
142 | delete fTFkaong; | |
143 | delete fTFkaonl; | |
144 | delete fTFhhadrong; | |
145 | delete fTFhhadronl; | |
146 | delete fDFmuon; | |
7acf6008 | 147 | } |
a496c46c | 148 | //____________________________________________________________________________ |
149 | const TString AliPHOSPIDv1::BranchName() const | |
150 | { | |
88cb7938 | 151 | |
152 | return GetName() ; | |
a496c46c | 153 | } |
154 | ||
148b2bba | 155 | //____________________________________________________________________________ |
156 | void AliPHOSPIDv1::Init() | |
157 | { | |
158 | // Make all memory allocations that are not possible in default constructor | |
159 | // Add the PID task to the list of PHOS tasks | |
a496c46c | 160 | |
adcca1e6 | 161 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
162 | if(!gime) | |
163 | gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ; | |
88cb7938 | 164 | |
165 | if ( !gime->PID() ) | |
166 | gime->PostPID(this) ; | |
148b2bba | 167 | } |
8d0f3f77 | 168 | |
169 | //____________________________________________________________________________ | |
170 | void AliPHOSPIDv1::InitParameters() | |
171 | { | |
e3817e5f | 172 | // Initialize PID parameters |
adcca1e6 | 173 | fWrite = kTRUE ; |
8d0f3f77 | 174 | fRecParticlesInRun = 0 ; |
8d0f3f77 | 175 | fNEvent = 0 ; |
8d0f3f77 | 176 | fRecParticlesInRun = 0 ; |
35adb638 | 177 | fBayesian = kTRUE ; |
9fa5f1d0 | 178 | SetParameters() ; // fill the parameters matrix from parameters file |
eabde521 | 179 | SetEventRange(0,-1) ; |
35adb638 | 180 | |
cc1fe362 | 181 | // initialisation of response function parameters |
182 | // Tof | |
2924941c | 183 | |
184 | // // Photons | |
185 | // fTphoton[0] = 0.218 ; | |
186 | // fTphoton[1] = 1.55E-8 ; | |
187 | // fTphoton[2] = 5.05E-10 ; | |
188 | // fTFphoton = new TFormula("ToF response to photons" , "gaus") ; | |
189 | // fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ; | |
190 | ||
191 | // // Pions | |
192 | // //Gaus (0 to max probability) | |
193 | // fTpiong[0] = 0.0971 ; | |
194 | // fTpiong[1] = 1.58E-8 ; | |
195 | // fTpiong[2] = 5.69E-10 ; | |
196 | // fTFpiong = new TFormula("ToF response to pions" , "gaus") ; | |
197 | // fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ; | |
198 | ||
199 | // // Kaons | |
200 | // //Gaus (0 to max probability) | |
201 | // fTkaong[0] = 0.0542 ; | |
202 | // fTkaong[1] = 1.64E-8 ; | |
203 | // fTkaong[2] = 6.07E-10 ; | |
204 | // fTFkaong = new TFormula("ToF response to kaon" , "gaus") ; | |
205 | // fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ; | |
206 | // //Landau (max probability to inf) | |
207 | // fTkaonl[0] = 0.264 ; | |
208 | // fTkaonl[1] = 1.68E-8 ; | |
209 | // fTkaonl[2] = 4.10E-10 ; | |
210 | // fTFkaonl = new TFormula("ToF response to kaon" , "landau") ; | |
211 | // fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ; | |
212 | ||
213 | // //Heavy Hadrons | |
214 | // //Gaus (0 to max probability) | |
215 | // fThhadrong[0] = 0.0302 ; | |
216 | // fThhadrong[1] = 1.73E-8 ; | |
217 | // fThhadrong[2] = 9.52E-10 ; | |
218 | // fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ; | |
219 | // fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ; | |
220 | // //Landau (max probability to inf) | |
221 | // fThhadronl[0] = 0.139 ; | |
222 | // fThhadronl[1] = 1.745E-8 ; | |
223 | // fThhadronl[2] = 1.00E-9 ; | |
224 | // fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ; | |
225 | // fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ; | |
226 | ||
cc1fe362 | 227 | // Photons |
2924941c | 228 | fTphoton[0] = 7.83E8 ; |
35adb638 | 229 | fTphoton[1] = 1.55E-8 ; |
2924941c | 230 | fTphoton[2] = 5.09E-10 ; |
35adb638 | 231 | fTFphoton = new TFormula("ToF response to photons" , "gaus") ; |
cc1fe362 | 232 | fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ; |
35adb638 | 233 | |
234 | // Pions | |
235 | //Gaus (0 to max probability) | |
2924941c | 236 | fTpiong[0] = 6.73E8 ; |
35adb638 | 237 | fTpiong[1] = 1.58E-8 ; |
2924941c | 238 | fTpiong[2] = 5.87E-10 ; |
35adb638 | 239 | fTFpiong = new TFormula("ToF response to pions" , "gaus") ; |
240 | fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ; | |
35adb638 | 241 | |
242 | // Kaons | |
243 | //Gaus (0 to max probability) | |
2924941c | 244 | fTkaong[0] = 3.93E8 ; |
35adb638 | 245 | fTkaong[1] = 1.64E-8 ; |
2924941c | 246 | fTkaong[2] = 6.07E-10 ; |
35adb638 | 247 | fTFkaong = new TFormula("ToF response to kaon" , "gaus") ; |
248 | fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ; | |
249 | //Landau (max probability to inf) | |
2924941c | 250 | fTkaonl[0] = 2.0E9 ; |
35adb638 | 251 | fTkaonl[1] = 1.68E-8 ; |
252 | fTkaonl[2] = 4.10E-10 ; | |
253 | fTFkaonl = new TFormula("ToF response to kaon" , "landau") ; | |
254 | fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ; | |
255 | ||
256 | //Heavy Hadrons | |
257 | //Gaus (0 to max probability) | |
2924941c | 258 | fThhadrong[0] = 2.02E8 ; |
35adb638 | 259 | fThhadrong[1] = 1.73E-8 ; |
260 | fThhadrong[2] = 9.52E-10 ; | |
261 | fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ; | |
262 | fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ; | |
263 | //Landau (max probability to inf) | |
2924941c | 264 | fThhadronl[0] = 1.10E9 ; |
265 | fThhadronl[1] = 1.74E-8 ; | |
266 | fThhadronl[2] = 1.00E-9 ; | |
35adb638 | 267 | fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ; |
268 | fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ; | |
269 | ||
35adb638 | 270 | |
271 | ||
272 | // Shower shape: dispersion gaussian parameters | |
273 | // Photons | |
2924941c | 274 | |
275 | // fDphoton[0] = 4.62e-2; fDphoton[1] = 1.39e-2 ; fDphoton[2] = -3.80e-2;//constant | |
276 | // fDphoton[3] = 1.53 ; fDphoton[4] =-6.62e-2 ; fDphoton[5] = 0.339 ;//mean | |
277 | // fDphoton[6] = 6.89e-2; fDphoton[7] =-6.59e-2 ; fDphoton[8] = 0.194 ;//sigma | |
278 | ||
279 | // fDpi0[0] = 0.0586 ; fDpi0[1] = 1.06E-3 ; fDpi0[2] = 0. ;//constant | |
280 | // fDpi0[3] = 2.67 ; fDpi0[4] =-2.00E-2 ; fDpi0[5] = 9.37E-5 ;//mean | |
281 | // fDpi0[6] = 0.153 ; fDpi0[7] = 9.34E-4 ; fDpi0[8] =-1.49E-5 ;//sigma | |
282 | ||
283 | // fDhadron[0] = 1.61E-2 ; fDhadron[1] = 3.03E-3 ; fDhadron[2] = 1.01E-2 ;//constant | |
284 | // fDhadron[3] = 3.81 ; fDhadron[4] = 0.232 ; fDhadron[5] =-1.25 ;//mean | |
285 | // fDhadron[6] = 0.897 ; fDhadron[7] = 0.0987 ; fDhadron[8] =-0.534 ;//sigma | |
286 | ||
287 | fDphoton[0] = 1.5 ; fDphoton[1] = 0.49 ; fDphoton[2] =-1.7E-2 ;//constant | |
288 | fDphoton[3] = 1.5 ; fDphoton[4] = 4.0E-2 ; fDphoton[5] = 0.21 ;//mean | |
289 | fDphoton[6] = 4.8E-2 ; fDphoton[7] =-0.12 ; fDphoton[8] = 0.27 ;//sigma | |
290 | fDphoton[9] = 16.; //for E> fDphoton[9] parameters calculated at fDphoton[9] | |
291 | ||
292 | fDpi0[0] = 0.25 ; fDpi0[1] = 3.3E-2 ; fDpi0[2] =-1.0e-5 ;//constant | |
293 | fDpi0[3] = 1.50 ; fDpi0[4] = 398. ; fDpi0[5] = 12. ;//mean | |
294 | fDpi0[6] =-7.0E-2 ; fDpi0[7] =-524. ; fDpi0[8] = 22. ;//sigma | |
295 | fDpi0[9] = 110.; //for E> fDpi0[9] parameters calculated at fDpi0[9] | |
296 | ||
297 | fDhadron[0] = 6.5 ; fDhadron[1] =-5.3 ; fDhadron[2] = 1.5 ;//constant | |
298 | fDhadron[3] = 3.8 ; fDhadron[4] = 0.23 ; fDhadron[5] =-1.2 ;//mean | |
299 | fDhadron[6] = 0.88 ; fDhadron[7] = 9.3E-2 ; fDhadron[8] =-0.51 ;//sigma | |
300 | fDhadron[9] = 2.; //for E> fDhadron[9] parameters calculated at fDhadron[9] | |
301 | ||
302 | fDmuon[0] = 0.0631 ; | |
303 | fDmuon[1] = 1.4 ; | |
35adb638 | 304 | fDmuon[2] = 0.0557 ; |
305 | fDFmuon = new TFormula("Shower shape response to muons" , "landau") ; | |
306 | fDFmuon->SetParameters( fDmuon[0], fDmuon[1], fDmuon[2]) ; | |
307 | ||
35adb638 | 308 | |
c947e71a | 309 | // x(CPV-EMC) distance gaussian parameters |
310 | ||
2924941c | 311 | // fXelectron[0] = 8.06e-2 ; fXelectron[1] = 1.00e-2; fXelectron[2] =-5.14e-2;//constant |
312 | // fXelectron[3] = 0.202 ; fXelectron[4] = 8.15e-3; fXelectron[5] = 4.55 ;//mean | |
313 | // fXelectron[6] = 0.334 ; fXelectron[7] = 0.186 ; fXelectron[8] = 4.32e-2;//sigma | |
c947e71a | 314 | |
2924941c | 315 | // //charged hadrons gaus |
316 | // fXcharged[0] = 6.43e-3 ; fXcharged[1] =-4.19e-5; fXcharged[2] = 1.42e-3;//constant | |
317 | // fXcharged[3] = 2.75 ; fXcharged[4] =-0.40 ; fXcharged[5] = 1.68 ;//mean | |
318 | // fXcharged[6] = 3.135 ; fXcharged[7] =-9.41e-2; fXcharged[8] = 1.31e-2;//sigma | |
c947e71a | 319 | |
2924941c | 320 | // // z(CPV-EMC) distance gaussian parameters |
321 | ||
322 | // fZelectron[0] = 8.22e-2 ; fZelectron[1] = 5.11e-3; fZelectron[2] =-3.05e-2;//constant | |
323 | // fZelectron[3] = 3.09e-2 ; fZelectron[4] = 5.87e-2; fZelectron[5] =-9.49e-2;//mean | |
324 | // fZelectron[6] = 0.263 ; fZelectron[7] =-9.02e-3; fZelectron[8] = 0.151 ;//sigma | |
c947e71a | 325 | |
2924941c | 326 | // //charged hadrons gaus |
c947e71a | 327 | |
2924941c | 328 | // fZcharged[0] = 1.00e-2 ; fZcharged[1] = 2.82E-4 ; fZcharged[2] = 2.87E-3 ;//constant |
329 | // fZcharged[3] =-4.68e-2 ; fZcharged[4] =-9.21e-3 ; fZcharged[5] = 4.91e-2 ;//mean | |
330 | // fZcharged[6] = 1.425 ; fZcharged[7] =-5.90e-2 ; fZcharged[8] = 5.07e-2 ;//sigma | |
331 | ||
332 | ||
333 | fXelectron[0] =-1.6E-2 ; fXelectron[1] = 0.77 ; fXelectron[2] =-0.15 ;//constant | |
334 | fXelectron[3] = 0.35 ; fXelectron[4] = 0.25 ; fXelectron[5] = 4.12 ;//mean | |
335 | fXelectron[6] = 0.30 ; fXelectron[7] = 0.11 ; fXelectron[8] = 0.16 ;//sigma | |
336 | fXelectron[9] = 3.; //for E> fXelectron[9] parameters calculated at fXelectron[9] | |
337 | ||
c947e71a | 338 | //charged hadrons gaus |
2924941c | 339 | fXcharged[0] = 0.14 ; fXcharged[1] =-3.0E-2 ; fXcharged[2] = 0 ;//constant |
340 | fXcharged[3] = 1.4 ; fXcharged[4] =-9.3E-2 ; fXcharged[5] = 1.4 ;//mean | |
341 | fXcharged[6] = 5.7 ; fXcharged[7] = 0.27 ; fXcharged[8] =-1.8 ;//sigma | |
342 | fXcharged[9] = 1.2; //for E> fXcharged[9] parameters calculated at fXcharged[9] | |
343 | ||
344 | // z(CPV-EMC) distance gaussian parameters | |
c947e71a | 345 | |
2924941c | 346 | fZelectron[0] = 0.49 ; fZelectron[1] = 0.53 ; fZelectron[2] =-9.8E-2 ;//constant |
347 | fZelectron[3] = 2.8E-2 ; fZelectron[4] = 5.0E-2 ; fZelectron[5] =-8.2E-2 ;//mean | |
348 | fZelectron[6] = 0.25 ; fZelectron[7] =-1.7E-2 ; fZelectron[8] = 0.17 ;//sigma | |
349 | fZelectron[9] = 3.; //for E> fZelectron[9] parameters calculated at fZelectron[9] | |
350 | ||
351 | //charged hadrons gaus | |
c947e71a | 352 | |
2924941c | 353 | fZcharged[0] = 0.46 ; fZcharged[1] =-0.65 ; fZcharged[2] = 0.52 ;//constant |
354 | fZcharged[3] = 1.1E-2 ; fZcharged[4] = 0. ; fZcharged[5] = 0. ;//mean | |
355 | fZcharged[6] = 0.60 ; fZcharged[7] =-8.2E-2 ; fZcharged[8] = 0.45 ;//sigma | |
356 | fZcharged[9] = 1.2; //for E> fXcharged[9] parameters calculated at fXcharged[9] | |
357 | ||
fb7b51ad | 358 | //Threshold to differentiate between charged and neutral |
359 | fChargedNeutralThreshold = 1e-5; | |
2924941c | 360 | fTOFEnThreshold = 2; //Maximum energy to use TOF |
361 | fDispEnThreshold = 0.5; //Minimum energy to use shower shape | |
362 | fDispMultThreshold = 3; //Minimum multiplicity to use shower shape | |
fb7b51ad | 363 | |
364 | //Weight to hadrons recontructed energy | |
365 | ||
366 | fERecWeightPar[0] = 0.32 ; | |
367 | fERecWeightPar[1] = 3.8 ; | |
368 | fERecWeightPar[2] = 5.4E-3 ; | |
369 | fERecWeightPar[3] = 5.6E-2 ; | |
370 | fERecWeight = new TFormula("Weight for hadrons" , "[0]*exp(-x*[1])+[2]*exp(-x*[3])") ; | |
371 | fERecWeight ->SetParameters(fERecWeightPar[0],fERecWeightPar[1] ,fERecWeightPar[2] ,fERecWeightPar[3]) ; | |
372 | ||
373 | ||
304864ab | 374 | for (Int_t i =0; i< AliPID::kSPECIESN ; i++) |
35adb638 | 375 | fInitPID[i] = 1.; |
fb7b51ad | 376 | |
8d0f3f77 | 377 | } |
378 | ||
88cb7938 | 379 | //________________________________________________________________________ |
eabde521 | 380 | void AliPHOSPIDv1::Exec(Option_t *option) |
88cb7938 | 381 | { |
eabde521 | 382 | // Steering method to perform particle reconstruction and identification |
383 | // for the event range from fFirstEvent to fLastEvent. | |
384 | // This range is optionally set by SetEventRange(). | |
385 | // if fLastEvent=-1 (by default), then process events until the end. | |
61d3d6aa | 386 | |
88cb7938 | 387 | if(strstr(option,"tim")) |
388 | gBenchmark->Start("PHOSPID"); | |
389 | ||
390 | if(strstr(option,"print")) { | |
391 | Print() ; | |
392 | return ; | |
393 | } | |
394 | ||
395 | ||
adcca1e6 | 396 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
88cb7938 | 397 | |
71cee46d | 398 | if (fLastEvent == -1) |
399 | fLastEvent = gime->MaxEvent() - 1 ; | |
400 | else | |
401 | fLastEvent = TMath::Min(fLastEvent,gime->MaxEvent()); | |
eabde521 | 402 | Int_t nEvents = fLastEvent - fFirstEvent + 1; |
88cb7938 | 403 | |
71cee46d | 404 | Int_t ievent ; |
405 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
88cb7938 | 406 | gime->Event(ievent,"TR") ; |
407 | if(gime->TrackSegments() && //Skip events, where no track segments made | |
408 | gime->TrackSegments()->GetEntriesFast()) { | |
7fb46731 | 409 | |
88cb7938 | 410 | MakeRecParticles() ; |
35adb638 | 411 | |
412 | if(fBayesian) | |
413 | MakePID() ; | |
414 | ||
90cceaf6 | 415 | WriteRecParticles(); |
88cb7938 | 416 | if(strstr(option,"deb")) |
417 | PrintRecParticles(option) ; | |
418 | //increment the total number of rec particles per run | |
419 | fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ; | |
420 | } | |
421 | } | |
ff417097 | 422 | if(strstr(option,"deb")) |
423 | PrintRecParticles(option); | |
88cb7938 | 424 | if(strstr(option,"tim")){ |
425 | gBenchmark->Stop("PHOSPID"); | |
351dd634 | 426 | AliInfo(Form("took %f seconds for PID %f seconds per event", |
88cb7938 | 427 | gBenchmark->GetCpuTime("PHOSPID"), |
351dd634 | 428 | gBenchmark->GetCpuTime("PHOSPID")/nEvents)) ; |
88cb7938 | 429 | } |
adcca1e6 | 430 | if(fWrite) |
431 | Unload(); | |
88cb7938 | 432 | } |
433 | ||
35adb638 | 434 | //________________________________________________________________________ |
17323043 | 435 | Double_t AliPHOSPIDv1::GausF(Double_t x, Double_t y, Double_t * par) |
35adb638 | 436 | { |
c947e71a | 437 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
438 | //this method returns a density probability of this parameter, given by a gaussian | |
439 | //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b | |
2924941c | 440 | //Float_t xorg = x; |
441 | if (x > par[9]) x = par[9]; | |
442 | ||
443 | //Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ; | |
444 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; | |
35adb638 | 445 | Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ; |
446 | Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ; | |
c947e71a | 447 | |
2924941c | 448 | // if(xorg > 30) |
449 | // cout<<"En_in = "<<xorg<<"; En_out = "<<x<<"; cnt = "<<cnt | |
450 | // <<"; mean = "<<mean<<"; sigma = "<<sigma<<endl; | |
451 | ||
35adb638 | 452 | // Double_t arg = - (y-mean) * (y-mean) / (2*sigma*sigma) ; |
453 | // return cnt * TMath::Exp(arg) ; | |
c947e71a | 454 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 455 | return cnt*TMath::Gaus(y,mean,sigma); |
35adb638 | 456 | } |
457 | else | |
458 | return 0.; | |
c947e71a | 459 | |
35adb638 | 460 | } |
461 | //________________________________________________________________________ | |
17323043 | 462 | Double_t AliPHOSPIDv1::GausPol2(Double_t x, Double_t y, Double_t * par) |
35adb638 | 463 | { |
c947e71a | 464 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
465 | //this method returns a density probability of this parameter, given by a gaussian | |
466 | //function whose parameters depend with the energy like second order polinomial | |
467 | ||
35adb638 | 468 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; |
469 | Double_t mean = par[3] + par[4] * x + par[5] * x * x ; | |
470 | Double_t sigma = par[6] + par[7] * x + par[8] * x * x ; | |
471 | ||
c947e71a | 472 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 473 | return cnt*TMath::Gaus(y,mean,sigma); |
35adb638 | 474 | } |
475 | else | |
476 | return 0.; | |
c947e71a | 477 | |
478 | ||
479 | ||
35adb638 | 480 | } |
481 | ||
69183710 | 482 | //____________________________________________________________________________ |
e3817e5f | 483 | const TString AliPHOSPIDv1::GetFileNamePrincipal(TString particle) const |
148b2bba | 484 | { |
e3817e5f | 485 | //Get file name that contains the PCA for a particle ("photon or pi0") |
486 | particle.ToLower(); | |
487 | TString name; | |
351dd634 | 488 | if (particle=="photon") |
489 | name = fFileNamePrincipalPhoton ; | |
490 | else if (particle=="pi0" ) | |
491 | name = fFileNamePrincipalPi0 ; | |
492 | else | |
493 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", | |
494 | particle.Data())); | |
e3817e5f | 495 | return name; |
496 | } | |
bc0c084c | 497 | |
e3817e5f | 498 | //____________________________________________________________________________ |
fc7e2f43 | 499 | Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const |
e3817e5f | 500 | { |
501 | // Get the i-th parameter "Calibration" | |
502 | Float_t param = 0.; | |
351dd634 | 503 | if (i>2 || i<0) { |
504 | AliError(Form("Invalid parameter number: %d",i)); | |
505 | } else | |
e3817e5f | 506 | param = (*fParameters)(0,i); |
507 | return param; | |
508 | } | |
bc0c084c | 509 | |
88cb7938 | 510 | //____________________________________________________________________________ |
fc7e2f43 | 511 | Float_t AliPHOSPIDv1::GetCalibratedEnergy(Float_t e) const |
88cb7938 | 512 | { |
513 | // It calibrates Energy depending on the recpoint energy. | |
514 | // The energy of the reconstructed cluster is corrected with | |
515 | // the formula A + B* E + C* E^2, whose parameters where obtained | |
516 | // through the study of the reconstructed energy distribution of | |
517 | // monoenergetic photons. | |
518 | ||
519 | Float_t p[]={0.,0.,0.}; | |
520 | for (Int_t i=0; i<3; i++) p[i] = GetParameterCalibration(i); | |
521 | Float_t enerec = p[0] + p[1]*e + p[2]*e*e; | |
522 | return enerec ; | |
523 | ||
524 | } | |
525 | ||
e3817e5f | 526 | //____________________________________________________________________________ |
fc7e2f43 | 527 | Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const |
e3817e5f | 528 | { |
529 | // Get the i-th parameter "CPV-EMC distance" for the specified axis | |
530 | Float_t param = 0.; | |
351dd634 | 531 | if(i>2 || i<0) { |
532 | AliError(Form("Invalid parameter number: %d",i)); | |
533 | } else { | |
e3817e5f | 534 | axis.ToLower(); |
351dd634 | 535 | if (axis == "x") |
536 | param = (*fParameters)(1,i); | |
537 | else if (axis == "z") | |
538 | param = (*fParameters)(2,i); | |
539 | else { | |
540 | AliError(Form("Invalid axis name: %s",axis.Data())); | |
541 | } | |
e3817e5f | 542 | } |
543 | return param; | |
544 | } | |
545 | ||
546 | //____________________________________________________________________________ | |
fc7e2f43 | 547 | Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const |
e3817e5f | 548 | { |
88cb7938 | 549 | // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and |
550 | // Purity-Efficiency point | |
551 | ||
552 | axis.ToLower(); | |
553 | Float_t p[]={0.,0.,0.}; | |
554 | for (Int_t i=0; i<3; i++) p[i] = GetParameterCpv2Emc(i,axis); | |
555 | Float_t sig = p[0] + TMath::Exp(p[1] - p[2]*e); | |
556 | return sig; | |
e3817e5f | 557 | } |
558 | ||
88cb7938 | 559 | //____________________________________________________________________________ |
fc7e2f43 | 560 | Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const |
88cb7938 | 561 | { |
562 | // Calculates the parameter param of the ellipse | |
e3817e5f | 563 | |
564 | particle.ToLower(); | |
565 | param. ToLower(); | |
88cb7938 | 566 | Float_t p[4]={0.,0.,0.,0.}; |
567 | Float_t value = 0.0; | |
568 | for (Int_t i=0; i<4; i++) p[i] = GetParameterToCalculateEllipse(particle,param,i); | |
569 | if (particle == "photon") { | |
570 | if (param.Contains("a")) e = TMath::Min((Double_t)e,70.); | |
571 | else if (param.Contains("b")) e = TMath::Min((Double_t)e,70.); | |
572 | else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1); | |
573 | } | |
e3817e5f | 574 | |
443caba9 | 575 | if (particle == "photon") |
576 | value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3]; | |
577 | else if (particle == "pi0") | |
578 | value = p[0] + p[1]*e + p[2]*e*e; | |
579 | ||
88cb7938 | 580 | return value; |
e3817e5f | 581 | } |
582 | ||
583 | //_____________________________________________________________________________ | |
fc7e2f43 | 584 | Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (Int_t i) const |
e3817e5f | 585 | { |
586 | // Get the parameter "i" to calculate the boundary on the moment M2x | |
587 | // for photons at high p_T | |
588 | Float_t param = 0; | |
351dd634 | 589 | if (i>3 || i<0) { |
590 | AliError(Form("Wrong parameter number: %d\n",i)); | |
591 | } else | |
e3817e5f | 592 | param = (*fParameters)(14,i) ; |
593 | return param; | |
148b2bba | 594 | } |
e3817e5f | 595 | |
148b2bba | 596 | //____________________________________________________________________________ |
fc7e2f43 | 597 | Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const |
e3817e5f | 598 | { |
599 | // Get the parameter "i" to calculate the boundary on the moment M2x | |
600 | // for pi0 at high p_T | |
601 | Float_t param = 0; | |
351dd634 | 602 | if (i>2 || i<0) { |
603 | AliError(Form("Wrong parameter number: %d\n",i)); | |
604 | } else | |
e3817e5f | 605 | param = (*fParameters)(15,i) ; |
606 | return param; | |
607 | } | |
148b2bba | 608 | |
e3817e5f | 609 | //____________________________________________________________________________ |
fc7e2f43 | 610 | Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const |
e3817e5f | 611 | { |
88cb7938 | 612 | // Get TimeGate parameter depending on Purity-Efficiency i: |
613 | // i=0 - Low purity, i=1 - Medium purity, i=2 - High purity | |
614 | Float_t param = 0.; | |
351dd634 | 615 | if(i>2 || i<0) { |
616 | AliError(Form("Invalid Efficiency-Purity choice %d",i)); | |
617 | } else | |
88cb7938 | 618 | param = (*fParameters)(3,i) ; |
619 | return param; | |
e3817e5f | 620 | } |
621 | ||
148b2bba | 622 | //_____________________________________________________________________________ |
fc7e2f43 | 623 | Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const |
88cb7938 | 624 | { |
625 | // Get the parameter "i" that is needed to calculate the ellipse | |
626 | // parameter "param" for the particle "particle" ("photon" or "pi0") | |
627 | ||
e3817e5f | 628 | particle.ToLower(); |
629 | param. ToLower(); | |
88cb7938 | 630 | Int_t offset = -1; |
351dd634 | 631 | if (particle == "photon") |
632 | offset=0; | |
633 | else if (particle == "pi0") | |
634 | offset=5; | |
e3817e5f | 635 | else |
351dd634 | 636 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", |
637 | particle.Data())); | |
88cb7938 | 638 | |
639 | Int_t p= -1; | |
640 | Float_t par = 0; | |
e3817e5f | 641 | |
642 | if (param.Contains("a")) p=4+offset; | |
643 | else if(param.Contains("b")) p=5+offset; | |
644 | else if(param.Contains("c")) p=6+offset; | |
645 | else if(param.Contains("x0"))p=7+offset; | |
646 | else if(param.Contains("y0"))p=8+offset; | |
12022e83 | 647 | |
351dd634 | 648 | if (i>4 || i<0) { |
649 | AliError(Form("No parameter with index %d", i)) ; | |
650 | } else if (p==-1) { | |
651 | AliError(Form("No parameter with name %s", param.Data() )) ; | |
652 | } else | |
88cb7938 | 653 | par = (*fParameters)(p,i) ; |
654 | ||
655 | return par; | |
12022e83 | 656 | } |
657 | ||
12022e83 | 658 | |
659 | //____________________________________________________________________________ | |
8d4608b5 | 660 | Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Option_t * axis)const |
69183710 | 661 | { |
662 | // Calculates the distance between the EMC RecPoint and the PPSD RecPoint | |
148b2bba | 663 | |
88cb7938 | 664 | const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ; |
69183710 | 665 | TVector3 vecEmc ; |
7acf6008 | 666 | TVector3 vecCpv ; |
148b2bba | 667 | if(cpv){ |
668 | emc->GetLocalPosition(vecEmc) ; | |
669 | cpv->GetLocalPosition(vecCpv) ; | |
2bb500e5 | 670 | |
148b2bba | 671 | if(emc->GetPHOSMod() == cpv->GetPHOSMod()){ |
672 | // Correct to difference in CPV and EMC position due to different distance to center. | |
673 | // we assume, that particle moves from center | |
674 | Float_t dCPV = geom->GetIPtoOuterCoverDistance(); | |
675 | Float_t dEMC = geom->GetIPtoCrystalSurface() ; | |
676 | dEMC = dEMC / dCPV ; | |
677 | vecCpv = dEMC * vecCpv - vecEmc ; | |
e3817e5f | 678 | if (axis == "X") return vecCpv.X(); |
679 | if (axis == "Y") return vecCpv.Y(); | |
680 | if (axis == "Z") return vecCpv.Z(); | |
681 | if (axis == "R") return vecCpv.Mag(); | |
682 | } | |
148b2bba | 683 | return 100000000 ; |
684 | } | |
7acf6008 | 685 | return 100000000 ; |
69183710 | 686 | } |
bc0c084c | 687 | //____________________________________________________________________________ |
8d4608b5 | 688 | Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Int_t effPur, Float_t e) const |
bc0c084c | 689 | { |
c947e71a | 690 | //Calculates the pid bit for the CPV selection per each purity. |
e3817e5f | 691 | if(effPur>2 || effPur<0) |
351dd634 | 692 | AliError(Form("Invalid Efficiency-Purity choice %d",effPur)); |
bc0c084c | 693 | |
e3817e5f | 694 | Float_t sigX = GetCpv2EmcDistanceCut("X",e); |
695 | Float_t sigZ = GetCpv2EmcDistanceCut("Z",e); | |
bc0c084c | 696 | |
697 | Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X")); | |
698 | Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z")); | |
7fb46731 | 699 | //Info("GetCPVBit"," xdist %f, sigx %f, zdist %f, sigz %f",deltaX, sigX, deltaZ,sigZ) ; |
700 | ||
701 | //if(deltaX>sigX*(effPur+1)) | |
702 | //if((deltaX>sigX*(effPur+1)) || (deltaZ>sigZ*(effPur+1))) | |
703 | if((deltaX>sigX*(effPur+1)) && (deltaZ>sigZ*(effPur+1))) | |
bc0c084c | 704 | return 1;//Neutral |
705 | else | |
706 | return 0;//Charged | |
bc0c084c | 707 | } |
69183710 | 708 | |
6ad0bfa0 | 709 | //____________________________________________________________________________ |
fc7e2f43 | 710 | Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p, Int_t effPur, Float_t e)const |
148b2bba | 711 | { |
50739f15 | 712 | //Is the particle inside de PCA ellipse? |
581354c5 | 713 | |
e3817e5f | 714 | particle.ToLower(); |
715 | Int_t prinbit = 0 ; | |
7fb46731 | 716 | Float_t a = GetEllipseParameter(particle,"a" , e); |
717 | Float_t b = GetEllipseParameter(particle,"b" , e); | |
718 | Float_t c = GetEllipseParameter(particle,"c" , e); | |
e3817e5f | 719 | Float_t x0 = GetEllipseParameter(particle,"x0", e); |
720 | Float_t y0 = GetEllipseParameter(particle,"y0", e); | |
721 | ||
722 | Float_t r = TMath::Power((p[0] - x0)/a,2) + | |
723 | TMath::Power((p[1] - y0)/b,2) + | |
724 | c*(p[0] - x0)*(p[1] - y0)/(a*b) ; | |
50739f15 | 725 | //3 different ellipses defined |
e3817e5f | 726 | if((effPur==2) && (r<1./2.)) prinbit= 1; |
727 | if((effPur==1) && (r<2. )) prinbit= 1; | |
728 | if((effPur==0) && (r<9./2.)) prinbit= 1; | |
50739f15 | 729 | |
581354c5 | 730 | if(r<0) |
351dd634 | 731 | AliError("Negative square?") ; |
1f0e7ccd | 732 | |
733 | return prinbit; | |
148b2bba | 734 | |
148b2bba | 735 | } |
1f0e7ccd | 736 | //____________________________________________________________________________ |
fc7e2f43 | 737 | Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const |
1f0e7ccd | 738 | { |
e3817e5f | 739 | // Set bit for identified hard photons (E > 30 GeV) |
740 | // if the second moment M2x is below the boundary | |
741 | ||
742 | Float_t e = emc->GetEnergy(); | |
743 | if (e < 30.0) return 0; | |
744 | Float_t m2x = emc->GetM2x(); | |
745 | Float_t m2xBoundary = GetParameterPhotonBoundary(0) * | |
746 | TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/ | |
747 | TMath::Power(GetParameterPhotonBoundary(2),2)) + | |
748 | GetParameterPhotonBoundary(3); | |
351dd634 | 749 | AliDebug(1, Form("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f", |
750 | e,m2x,m2xBoundary)); | |
e3817e5f | 751 | if (m2x < m2xBoundary) |
752 | return 1;// A hard photon | |
753 | else | |
754 | return 0;// Not a hard photon | |
1f0e7ccd | 755 | } |
92f521a9 | 756 | |
e3817e5f | 757 | //____________________________________________________________________________ |
fc7e2f43 | 758 | Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) const |
e3817e5f | 759 | { |
760 | // Set bit for identified hard pi0 (E > 30 GeV) | |
761 | // if the second moment M2x is above the boundary | |
762 | ||
763 | Float_t e = emc->GetEnergy(); | |
764 | if (e < 30.0) return 0; | |
765 | Float_t m2x = emc->GetM2x(); | |
766 | Float_t m2xBoundary = GetParameterPi0Boundary(0) + | |
767 | e * GetParameterPi0Boundary(1); | |
351dd634 | 768 | AliDebug(1,Form("E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary)); |
e3817e5f | 769 | if (m2x > m2xBoundary) |
770 | return 1;// A hard pi0 | |
bc0c084c | 771 | else |
e3817e5f | 772 | return 0;// Not a hard pi0 |
f0a4c9e9 | 773 | } |
e3817e5f | 774 | |
775 | //____________________________________________________________________________ | |
8d4608b5 | 776 | TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * )const |
88cb7938 | 777 | { |
778 | // Calculates the momentum direction: | |
779 | // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint | |
780 | // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints | |
781 | // However because of the poor position resolution of PPSD the direction is always taken as if we were | |
782 | // in case 1. | |
f0a4c9e9 | 783 | |
88cb7938 | 784 | TVector3 dir(0,0,0) ; |
88cb7938 | 785 | TMatrix dummy ; |
bf8f1fbd | 786 | |
fb7b51ad | 787 | emc->GetGlobalPosition(dir, dummy) ; |
e3817e5f | 788 | |
88cb7938 | 789 | //account correction to the position of IP |
790 | Float_t xo,yo,zo ; //Coordinates of the origin | |
7fb46731 | 791 | if(gAlice && gAlice->GetMCApp() && gAlice->Generator()){ |
adcca1e6 | 792 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; |
7fb46731 | 793 | } |
adcca1e6 | 794 | else{ |
795 | xo=yo=zo=0.; | |
796 | } | |
88cb7938 | 797 | TVector3 origin(xo,yo,zo); |
798 | dir = dir - origin ; | |
7fb46731 | 799 | dir.SetMag(1.) ; |
e3817e5f | 800 | |
88cb7938 | 801 | return dir ; |
7b7c1533 | 802 | } |
803 | ||
35adb638 | 804 | //________________________________________________________________________ |
17323043 | 805 | Double_t AliPHOSPIDv1::LandauF(Double_t x, Double_t y, Double_t * par) |
35adb638 | 806 | { |
c947e71a | 807 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), |
808 | //this method returns a density probability of this parameter, given by a landau | |
809 | //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b | |
810 | ||
2924941c | 811 | if (x > par[9]) x = par[9]; |
812 | ||
813 | //Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ; | |
814 | Double_t cnt = par[0] + par[1] * x + par[2] * x * x ; | |
35adb638 | 815 | Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ; |
816 | Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ; | |
c947e71a | 817 | |
818 | if(TMath::Abs(sigma) > 1.e-10){ | |
acb5beb7 | 819 | return cnt*TMath::Landau(y,mean,sigma); |
35adb638 | 820 | } |
821 | else | |
822 | return 0.; | |
823 | ||
824 | } | |
825 | //________________________________________________________________________ | |
17323043 | 826 | Double_t AliPHOSPIDv1::LandauPol2(Double_t x, Double_t y, Double_t * par) |
35adb638 | 827 | { |
c947e71a | 828 | |
829 | //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance), | |
830 | //this method returns a density probability of this parameter, given by a landau | |
831 | //function whose parameters depend with the energy like second order polinomial | |
832 | ||
35adb638 | 833 | Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ; |
c947e71a | 834 | Double_t mean = par[5] * (x*x) + par[4] * x + par[3] ; |
835 | Double_t sigma = par[8] * (x*x) + par[7] * x + par[6] ; | |
35adb638 | 836 | |
c947e71a | 837 | if(TMath::Abs(sigma) > 1.e-10){ |
acb5beb7 | 838 | return cnt*TMath::Landau(y,mean,sigma); |
35adb638 | 839 | } |
840 | else | |
841 | return 0.; | |
c947e71a | 842 | |
843 | ||
35adb638 | 844 | } |
845 | // //________________________________________________________________________ | |
846 | // Double_t AliPHOSPIDv1::ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl) | |
847 | // { | |
848 | // Double_t cnt = 0.0 ; | |
849 | // Double_t mean = 0.0 ; | |
850 | // Double_t sigma = 0.0 ; | |
851 | // Double_t arg = 0.0 ; | |
852 | // if (y < parl[4] / (x*x) + parl[5] / x + parl[3]){ | |
853 | // cnt = parg[1] / (x*x) + parg[2] / x + parg[0] ; | |
854 | // mean = parg[4] / (x*x) + parg[5] / x + parg[3] ; | |
855 | // sigma = parg[7] / (x*x) + parg[8] / x + parg[6] ; | |
856 | // TF1 * f = new TF1("gaus","gaus",0.,100.); | |
857 | // f->SetParameters(cnt,mean,sigma); | |
858 | // arg = f->Eval(y) ; | |
859 | // } | |
860 | // else{ | |
861 | // cnt = parl[1] / (x*x) + parl[2] / x + parl[0] ; | |
862 | // mean = parl[4] / (x*x) + parl[5] / x + parl[3] ; | |
863 | // sigma = parl[7] / (x*x) + parl[8] / x + parl[6] ; | |
864 | // TF1 * f = new TF1("landau","landau",0.,100.); | |
865 | // f->SetParameters(cnt,mean,sigma); | |
866 | // arg = f->Eval(y) ; | |
867 | // } | |
868 | // // Double_t mean = par[3] + par[4] * x + par[5] * x * x ; | |
869 | // // Double_t sigma = par[6] + par[7] * x + par[8] * x * x ; | |
870 | ||
871 | // //Double_t arg = -(y-mean)*(y-mean)/(2*sigma*sigma) ; | |
872 | // //return cnt * TMath::Exp(arg) ; | |
873 | ||
874 | // return arg; | |
875 | ||
876 | // } | |
2cc71c1e | 877 | //____________________________________________________________________________ |
878 | void AliPHOSPIDv1::MakePID() | |
879 | { | |
880 | // construct the PID weight from a Bayesian Method | |
c947e71a | 881 | |
304864ab | 882 | const Int_t kSPECIES = AliPID::kSPECIESN ; |
7fb46731 | 883 | |
884 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
885 | ||
886 | Int_t nparticles = gime->RecParticles()->GetEntriesFast() ; | |
887 | ||
7fb46731 | 888 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
889 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
890 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
891 | if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) { | |
892 | AliFatal("RecPoints or TrackSegments not found !") ; | |
893 | } | |
894 | TIter next(trackSegments) ; | |
895 | AliPHOSTrackSegment * ts ; | |
896 | Int_t index = 0 ; | |
897 | ||
35adb638 | 898 | Double_t * stof[kSPECIES] ; |
899 | Double_t * sdp [kSPECIES] ; | |
900 | Double_t * scpv[kSPECIES] ; | |
fb7b51ad | 901 | Double_t * sw [kSPECIES] ; |
35adb638 | 902 | //Info("MakePID","Begin MakePID"); |
903 | ||
904 | for (Int_t i =0; i< kSPECIES; i++){ | |
905 | stof[i] = new Double_t[nparticles] ; | |
906 | sdp [i] = new Double_t[nparticles] ; | |
907 | scpv[i] = new Double_t[nparticles] ; | |
fb7b51ad | 908 | sw [i] = new Double_t[nparticles] ; |
35adb638 | 909 | } |
910 | ||
7fb46731 | 911 | |
912 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { | |
913 | ||
914 | //cout<<">>>>>> Bayesian Index "<<index<<endl; | |
915 | ||
916 | AliPHOSEmcRecPoint * emc = 0 ; | |
917 | if(ts->GetEmcIndex()>=0) | |
918 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; | |
919 | ||
920 | AliPHOSCpvRecPoint * cpv = 0 ; | |
921 | if(ts->GetCpvIndex()>=0) | |
922 | cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; | |
cc1fe362 | 923 | |
7fb46731 | 924 | // Int_t track = 0 ; |
925 | // track = ts->GetTrackIndex() ; //TPC tracks ? | |
cc1fe362 | 926 | |
7fb46731 | 927 | if (!emc) { |
928 | AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ; | |
929 | } | |
c947e71a | 930 | |
2924941c | 931 | |
7fb46731 | 932 | // ############Tof############################# |
c947e71a | 933 | |
7fb46731 | 934 | // Info("MakePID", "TOF"); |
fb7b51ad | 935 | Float_t en = emc->GetEnergy(); |
7fb46731 | 936 | Double_t time = emc->GetTime() ; |
937 | // cout<<">>>>>>>Energy "<<en<<"Time "<<time<<endl; | |
fb7b51ad | 938 | |
35adb638 | 939 | // now get the signals probability |
940 | // s(pid) in the Bayesian formulation | |
cc1fe362 | 941 | |
304864ab | 942 | stof[AliPID::kPhoton][index] = 1.; |
943 | stof[AliPID::kElectron][index] = 1.; | |
304864ab | 944 | stof[AliPID::kEleCon][index] = 1.; |
7fb46731 | 945 | //We assing the same prob to charged hadrons, sum is 1 |
946 | stof[AliPID::kPion][index] = 1./3.; | |
947 | stof[AliPID::kKaon][index] = 1./3.; | |
948 | stof[AliPID::kProton][index] = 1./3.; | |
949 | //We assing the same prob to neutral hadrons, sum is 1 | |
950 | stof[AliPID::kNeutron][index] = 1./2.; | |
951 | stof[AliPID::kKaon0][index] = 1./2.; | |
304864ab | 952 | stof[AliPID::kMuon][index] = 1.; |
2924941c | 953 | |
954 | if(en < fTOFEnThreshold) { | |
7fb46731 | 955 | |
956 | Double_t pTofPion = fTFpiong ->Eval(time) ; //gaus distribution | |
957 | Double_t pTofKaon = 0; | |
958 | ||
35adb638 | 959 | if(time < fTkaonl[1]) |
fb7b51ad | 960 | pTofKaon = fTFkaong ->Eval(time) ; //gaus distribution |
35adb638 | 961 | else |
fb7b51ad | 962 | pTofKaon = fTFkaonl ->Eval(time) ; //landau distribution |
7fb46731 | 963 | |
964 | Double_t pTofNucleon = 0; | |
965 | ||
35adb638 | 966 | if(time < fThhadronl[1]) |
7fb46731 | 967 | pTofNucleon = fTFhhadrong ->Eval(time) ; //gaus distribution |
35adb638 | 968 | else |
7fb46731 | 969 | pTofNucleon = fTFhhadronl ->Eval(time) ; //landau distribution |
7fb46731 | 970 | //We assing the same prob to neutral hadrons, sum is the average prob |
fb7b51ad | 971 | Double_t pTofNeHadron = (pTofKaon + pTofNucleon)/2. ; |
972 | //We assing the same prob to charged hadrons, sum is the average prob | |
973 | Double_t pTofChHadron = (pTofPion + pTofKaon + pTofNucleon)/3. ; | |
7fb46731 | 974 | |
fb7b51ad | 975 | stof[AliPID::kPhoton][index] = fTFphoton ->Eval(time) ; |
976 | //gaus distribution | |
977 | stof[AliPID::kEleCon][index] = stof[AliPID::kPhoton][index] ; | |
978 | //a conversion electron has the photon ToF | |
304864ab | 979 | stof[AliPID::kMuon][index] = stof[AliPID::kPhoton][index] ; |
7fb46731 | 980 | |
fb7b51ad | 981 | stof[AliPID::kElectron][index] = pTofPion ; |
7fb46731 | 982 | |
983 | stof[AliPID::kPion][index] = pTofChHadron ; | |
984 | stof[AliPID::kKaon][index] = pTofChHadron ; | |
985 | stof[AliPID::kProton][index] = pTofChHadron ; | |
986 | ||
987 | stof[AliPID::kKaon0][index] = pTofNeHadron ; | |
988 | stof[AliPID::kNeutron][index] = pTofNeHadron ; | |
cc1fe362 | 989 | } |
c947e71a | 990 | |
991 | // Info("MakePID", "Dispersion"); | |
cc1fe362 | 992 | |
7fb46731 | 993 | // ###########Shower shape: Dispersion#################### |
35adb638 | 994 | Float_t dispersion = emc->GetDispersion(); |
995 | //dispersion is not well defined if the cluster is only in few crystals | |
cc1fe362 | 996 | |
304864ab | 997 | sdp[AliPID::kPhoton][index] = 1. ; |
998 | sdp[AliPID::kElectron][index] = 1. ; | |
999 | sdp[AliPID::kPion][index] = 1. ; | |
1000 | sdp[AliPID::kKaon][index] = 1. ; | |
1001 | sdp[AliPID::kProton][index] = 1. ; | |
1002 | sdp[AliPID::kNeutron][index] = 1. ; | |
1003 | sdp[AliPID::kEleCon][index] = 1. ; | |
1004 | sdp[AliPID::kKaon0][index] = 1. ; | |
1005 | sdp[AliPID::kMuon][index] = 1. ; | |
c947e71a | 1006 | |
2924941c | 1007 | if(en > fDispEnThreshold && emc->GetMultiplicity() > fDispMultThreshold){ |
7fb46731 | 1008 | sdp[AliPID::kPhoton][index] = GausF(en , dispersion, fDphoton) ; |
304864ab | 1009 | sdp[AliPID::kElectron][index] = sdp[AliPID::kPhoton][index] ; |
1010 | sdp[AliPID::kPion][index] = LandauF(en , dispersion, fDhadron ) ; | |
1011 | sdp[AliPID::kKaon][index] = sdp[AliPID::kPion][index] ; | |
1012 | sdp[AliPID::kProton][index] = sdp[AliPID::kPion][index] ; | |
1013 | sdp[AliPID::kNeutron][index] = sdp[AliPID::kPion][index] ; | |
1014 | sdp[AliPID::kEleCon][index] = sdp[AliPID::kPhoton][index]; | |
1015 | sdp[AliPID::kKaon0][index] = sdp[AliPID::kPion][index] ; | |
fb7b51ad | 1016 | sdp[AliPID::kMuon][index] = fDFmuon ->Eval(dispersion) ; |
1017 | //landau distribution | |
35adb638 | 1018 | } |
cc1fe362 | 1019 | |
7fb46731 | 1020 | // Info("MakePID","multiplicity %d, dispersion %f", emc->GetMultiplicity(), dispersion); |
1021 | // Info("MakePID","ss: photon %f, hadron %f ", sdp[AliPID::kPhoton][index], sdp[AliPID::kPion][index]); | |
c947e71a | 1022 | // cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<", dispersion "<< dispersion<<endl ; |
304864ab | 1023 | // cout<<"<<<<<ss: photon "<<sdp[AliPID::kPhoton][index]<<", hadron "<<sdp[AliPID::kPion][index]<<endl; |
c947e71a | 1024 | |
7fb46731 | 1025 | //########## CPV-EMC Distance####################### |
1026 | // Info("MakePID", "Distance"); | |
fb7b51ad | 1027 | |
7fb46731 | 1028 | Float_t x = TMath::Abs(GetDistance(emc, cpv, "X")) ; |
1029 | Float_t z = GetDistance(emc, cpv, "Z") ; | |
fb7b51ad | 1030 | |
7fb46731 | 1031 | Double_t pcpv = 0 ; |
c947e71a | 1032 | Double_t pcpvneutral = 0. ; |
7fb46731 | 1033 | |
1034 | Double_t elprobx = GausF(en , x, fXelectron) ; | |
1035 | Double_t elprobz = GausF(en , z, fZelectron) ; | |
1036 | Double_t chprobx = GausF(en , x, fXcharged) ; | |
1037 | Double_t chprobz = GausF(en , z, fZcharged) ; | |
c947e71a | 1038 | Double_t pcpvelectron = elprobx * elprobz; |
1039 | Double_t pcpvcharged = chprobx * chprobz; | |
7fb46731 | 1040 | |
1041 | // cout<<">>>>energy "<<en<<endl; | |
c947e71a | 1042 | // cout<<">>>>electron : x "<<x<<" xprob "<<elprobx<<" z "<<z<<" zprob "<<elprobz<<endl; |
1043 | // cout<<">>>>hadron : x "<<x<<" xprob "<<chprobx<<" z "<<z<<" zprob "<<chprobz<<endl; | |
1044 | // cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl; | |
1045 | ||
2924941c | 1046 | // Is neutral or charged? |
35adb638 | 1047 | if(pcpvelectron >= pcpvcharged) |
1048 | pcpv = pcpvelectron ; | |
1049 | else | |
1050 | pcpv = pcpvcharged ; | |
1051 | ||
fb7b51ad | 1052 | if(pcpv < fChargedNeutralThreshold) |
35adb638 | 1053 | { |
1054 | pcpvneutral = 1. ; | |
1055 | pcpvcharged = 0. ; | |
1056 | pcpvelectron = 0. ; | |
1057 | } | |
c947e71a | 1058 | // else |
1059 | // cout<<">>>>>>>>>>>CHARGED>>>>>>>>>>>"<<endl; | |
35adb638 | 1060 | |
304864ab | 1061 | scpv[AliPID::kPion][index] = pcpvcharged ; |
1062 | scpv[AliPID::kKaon][index] = pcpvcharged ; | |
1063 | scpv[AliPID::kProton][index] = pcpvcharged ; | |
7fb46731 | 1064 | |
1065 | scpv[AliPID::kMuon][index] = pcpvelectron ; | |
304864ab | 1066 | scpv[AliPID::kElectron][index] = pcpvelectron ; |
304864ab | 1067 | scpv[AliPID::kEleCon][index] = pcpvelectron ; |
7fb46731 | 1068 | |
1069 | scpv[AliPID::kPhoton][index] = pcpvneutral ; | |
1070 | scpv[AliPID::kNeutron][index] = pcpvneutral ; | |
304864ab | 1071 | scpv[AliPID::kKaon0][index] = pcpvneutral ; |
7fb46731 | 1072 | |
35adb638 | 1073 | |
1074 | // Info("MakePID", "CPV passed"); | |
c947e71a | 1075 | |
7fb46731 | 1076 | //############## Pi0 ############################# |
304864ab | 1077 | stof[AliPID::kPi0][index] = 0. ; |
1078 | scpv[AliPID::kPi0][index] = 0. ; | |
1079 | sdp [AliPID::kPi0][index] = 0. ; | |
c947e71a | 1080 | |
35adb638 | 1081 | if(en > 30.){ |
1082 | // pi0 are detected via decay photon | |
2924941c | 1083 | stof[AliPID::kPi0][index] = stof[AliPID::kPhoton][index]; |
304864ab | 1084 | scpv[AliPID::kPi0][index] = pcpvneutral ; |
2924941c | 1085 | if(emc->GetMultiplicity() > fDispMultThreshold) |
1086 | sdp [AliPID::kPi0][index] = GausF(en , dispersion, fDpi0) ; | |
1087 | //sdp [AliPID::kPi0][index] = GausPol2(en , dispersion, fDpi0) ; | |
1088 | // cout<<"E = "<<en<<" GeV; disp = "<<dispersion<<"; mult = " | |
1089 | // <<emc->GetMultiplicity()<<endl; | |
1090 | // cout<<"PDF: photon = "<<sdp [AliPID::kPhoton][index]<<"; pi0 = " | |
1091 | // <<sdp [AliPID::kPi0][index]<<endl; | |
35adb638 | 1092 | } |
1093 | ||
2924941c | 1094 | |
7fb46731 | 1095 | |
2924941c | 1096 | |
7fb46731 | 1097 | //############## muon ############################# |
1098 | ||
35adb638 | 1099 | if(en > 0.5){ |
1100 | //Muons deposit few energy | |
304864ab | 1101 | scpv[AliPID::kMuon][index] = 0 ; |
1102 | stof[AliPID::kMuon][index] = 0 ; | |
1103 | sdp [AliPID::kMuon][index] = 0 ; | |
c947e71a | 1104 | } |
1105 | ||
fb7b51ad | 1106 | //Weight to apply to hadrons due to energy reconstruction |
1107 | ||
1108 | Float_t weight = fERecWeight ->Eval(en) ; | |
1109 | ||
1110 | sw[AliPID::kPhoton][index] = 1. ; | |
1111 | sw[AliPID::kElectron][index] = 1. ; | |
1112 | sw[AliPID::kPion][index] = weight ; | |
1113 | sw[AliPID::kKaon][index] = weight ; | |
1114 | sw[AliPID::kProton][index] = weight ; | |
1115 | sw[AliPID::kNeutron][index] = weight ; | |
1116 | sw[AliPID::kEleCon][index] = 1. ; | |
1117 | sw[AliPID::kKaon0][index] = weight ; | |
1118 | sw[AliPID::kMuon][index] = weight ; | |
1119 | sw[AliPID::kPi0][index] = 1. ; | |
1120 | ||
7fb46731 | 1121 | // if(en > 0.5){ |
1122 | // cout<<"######################################################"<<endl; | |
1123 | // //cout<<"MakePID: energy "<<en<<", tof "<<time<<", distance "<<distance<<", dispersion "<<dispersion<<endl ; | |
1124 | // cout<<"MakePID: energy "<<en<<", tof "<<time<<", dispersion "<<dispersion<<", x "<<x<<", z "<<z<<endl ; | |
1125 | // cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<endl; | |
1126 | // cout<<">>>>electron : xprob "<<elprobx<<" zprob "<<elprobz<<endl; | |
1127 | // cout<<">>>>hadron : xprob "<<chprobx<<" zprob "<<chprobz<<endl; | |
1128 | // cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl; | |
c947e71a | 1129 | |
2924941c | 1130 | // cout<<"Photon , pid "<< fInitPID[AliPID::kPhoton]<<" tof "<<stof[AliPID::kPhoton][index] |
1131 | // <<", cpv "<<scpv[AliPID::kPhoton][index]<<", ss "<<sdp[AliPID::kPhoton][index]<<endl; | |
7fb46731 | 1132 | // cout<<"EleCon , pid "<< fInitPID[AliPID::kEleCon]<<", tof "<<stof[AliPID::kEleCon][index] |
1133 | // <<", cpv "<<scpv[AliPID::kEleCon][index]<<" ss "<<sdp[AliPID::kEleCon][index]<<endl; | |
1134 | // cout<<"Electron , pid "<< fInitPID[AliPID::kElectron]<<", tof "<<stof[AliPID::kElectron][index] | |
1135 | // <<", cpv "<<scpv[AliPID::kElectron][index]<<" ss "<<sdp[AliPID::kElectron][index]<<endl; | |
1136 | // cout<<"Muon , pid "<< fInitPID[AliPID::kMuon]<<", tof "<<stof[AliPID::kMuon][index] | |
1137 | // <<", cpv "<<scpv[AliPID::kMuon][index]<<" ss "<<sdp[AliPID::kMuon][index]<<endl; | |
2924941c | 1138 | // cout<<"Pi0 , pid "<< fInitPID[AliPID::kPi0]<<", tof "<<stof[AliPID::kPi0][index] |
1139 | // <<", cpv "<<scpv[AliPID::kPi0][index]<<" ss "<<sdp[AliPID::kPi0][index]<<endl; | |
7fb46731 | 1140 | // cout<<"Pion , pid "<< fInitPID[AliPID::kPion]<<", tof "<<stof[AliPID::kPion][index] |
1141 | // <<", cpv "<<scpv[AliPID::kPion][index]<<" ss "<<sdp[AliPID::kPion][index]<<endl; | |
1142 | // cout<<"Kaon0 , pid "<< fInitPID[AliPID::kKaon0]<<", tof "<<stof[AliPID::kKaon0][index] | |
1143 | // <<", cpv "<<scpv[AliPID::kKaon0][index]<<" ss "<<sdp[AliPID::kKaon0][index]<<endl; | |
1144 | // cout<<"Kaon , pid "<< fInitPID[AliPID::kKaon]<<", tof "<<stof[AliPID::kKaon][index] | |
1145 | // <<", cpv "<<scpv[AliPID::kKaon][index]<<" ss "<<sdp[AliPID::kKaon][index]<<endl; | |
1146 | // cout<<"Neutron , pid "<< fInitPID[AliPID::kNeutron]<<", tof "<<stof[AliPID::kNeutron][index] | |
1147 | // <<", cpv "<<scpv[AliPID::kNeutron][index]<<" ss "<<sdp[AliPID::kNeutron][index]<<endl; | |
1148 | // cout<<"Proton , pid "<< fInitPID[AliPID::kProton]<<", tof "<<stof[AliPID::kProton][index] | |
1149 | // <<", cpv "<<scpv[AliPID::kProton][index]<<" ss "<<sdp[AliPID::kProton][index]<<endl; | |
1150 | // cout<<"######################################################"<<endl; | |
1151 | // } | |
1152 | index++; | |
cc1fe362 | 1153 | } |
35adb638 | 1154 | |
1155 | //for (index = 0 ; index < kSPECIES ; index++) | |
1156 | // pid[index] /= nparticles ; | |
1157 | ||
7fb46731 | 1158 | |
35adb638 | 1159 | // Info("MakePID", "Total Probability calculation"); |
1160 | ||
cc1fe362 | 1161 | for(index = 0 ; index < nparticles ; index ++) { |
2924941c | 1162 | |
1163 | AliPHOSRecParticle * recpar = gime->RecParticle(index) ; | |
1164 | ||
1165 | //Conversion electron? | |
1166 | ||
1167 | if(recpar->IsEleCon()){ | |
1168 | fInitPID[AliPID::kEleCon] = 1. ; | |
1169 | fInitPID[AliPID::kPhoton] = 0. ; | |
1170 | fInitPID[AliPID::kElectron] = 0. ; | |
1171 | } | |
1172 | else{ | |
1173 | fInitPID[AliPID::kEleCon] = 0. ; | |
1174 | fInitPID[AliPID::kPhoton] = 1. ; | |
1175 | fInitPID[AliPID::kElectron] = 1. ; | |
1176 | } | |
1177 | // fInitPID[AliPID::kEleCon] = 0. ; | |
1178 | ||
1179 | ||
cc1fe362 | 1180 | // calculates the Bayesian weight |
7fb46731 | 1181 | |
cc1fe362 | 1182 | Int_t jndex ; |
1183 | Double_t wn = 0.0 ; | |
1184 | for (jndex = 0 ; jndex < kSPECIES ; jndex++) | |
2924941c | 1185 | wn += stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * |
1186 | sw[jndex][index] * fInitPID[jndex] ; | |
1187 | ||
7fb46731 | 1188 | // cout<<"*************wn "<<wn<<endl; |
e74ea0e9 | 1189 | if (TMath::Abs(wn)>0) |
1190 | for (jndex = 0 ; jndex < kSPECIES ; jndex++) { | |
35adb638 | 1191 | //cout<<"jndex "<<jndex<<" wn "<<wn<<" SetPID * wn" |
1192 | //<<stof[jndex][index] * sdp[jndex][index] * pid[jndex] << endl; | |
1193 | //cout<<" tof "<<stof[jndex][index] << " disp " <<sdp[jndex][index] << " pid "<< fInitPID[jndex] << endl; | |
2924941c | 1194 | // if(jndex == AliPID::kPi0 || jndex == AliPID::kPhoton){ |
1195 | // cout<<"Particle "<<jndex<<" final prob * wn " | |
1196 | // <<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * | |
1197 | // fInitPID[jndex] <<" wn "<< wn<<endl; | |
1198 | // cout<<"pid "<< fInitPID[jndex]<<", tof "<<stof[jndex][index] | |
1199 | // <<", cpv "<<scpv[jndex][index]<<" ss "<<sdp[jndex][index]<<endl; | |
1200 | // } | |
1201 | recpar->SetPID(jndex, stof[jndex][index] * sdp[jndex][index] * | |
1202 | sw[jndex][index] * scpv[jndex][index] * | |
1203 | fInitPID[jndex] / wn) ; | |
e74ea0e9 | 1204 | } |
2cc71c1e | 1205 | } |
35adb638 | 1206 | // Info("MakePID", "Delete"); |
1207 | ||
2924941c | 1208 | for (Int_t i =0; i< kSPECIES; i++){ |
1209 | delete [] stof[i]; | |
1210 | delete [] sdp [i]; | |
1211 | delete [] scpv[i]; | |
1212 | delete [] sw [i]; | |
1213 | } | |
35adb638 | 1214 | // Info("MakePID","End MakePID"); |
2cc71c1e | 1215 | } |
1216 | ||
7acf6008 | 1217 | //____________________________________________________________________________ |
e3817e5f | 1218 | void AliPHOSPIDv1::MakeRecParticles() |
1219 | { | |
b2a60966 | 1220 | // Makes a RecParticle out of a TrackSegment |
148b2bba | 1221 | |
88cb7938 | 1222 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
fbf811ec | 1223 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
1224 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
1225 | TClonesArray * trackSegments = gime->TrackSegments() ; | |
148b2bba | 1226 | if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) { |
351dd634 | 1227 | AliFatal("RecPoints or TrackSegments not found !") ; |
148b2bba | 1228 | } |
fbf811ec | 1229 | TClonesArray * recParticles = gime->RecParticles() ; |
01a599c9 | 1230 | recParticles->Clear(); |
148b2bba | 1231 | |
7b7c1533 | 1232 | TIter next(trackSegments) ; |
7acf6008 | 1233 | AliPHOSTrackSegment * ts ; |
6ad0bfa0 | 1234 | Int_t index = 0 ; |
09fc14a0 | 1235 | AliPHOSRecParticle * rp ; |
7acf6008 | 1236 | while ( (ts = (AliPHOSTrackSegment *)next()) ) { |
7fb46731 | 1237 | // cout<<">>>>>>>>>>>>>>>PCA Index "<<index<<endl; |
7b7c1533 | 1238 | new( (*recParticles)[index] ) AliPHOSRecParticle() ; |
1239 | rp = (AliPHOSRecParticle *)recParticles->At(index) ; | |
f0a4c9e9 | 1240 | rp->SetTrackSegment(index) ; |
9688c1dd | 1241 | rp->SetIndexInList(index) ; |
148b2bba | 1242 | |
7acf6008 | 1243 | AliPHOSEmcRecPoint * emc = 0 ; |
1244 | if(ts->GetEmcIndex()>=0) | |
7b7c1533 | 1245 | emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ; |
fad3e5b9 | 1246 | |
8d4608b5 | 1247 | AliPHOSCpvRecPoint * cpv = 0 ; |
7acf6008 | 1248 | if(ts->GetCpvIndex()>=0) |
8d4608b5 | 1249 | cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ; |
fad3e5b9 | 1250 | |
bd76890a | 1251 | Int_t track = 0 ; |
1252 | track = ts->GetTrackIndex() ; | |
1253 | ||
148b2bba | 1254 | // Now set type (reconstructed) of the particle |
1255 | ||
1256 | // Choose the cluster energy range | |
9fa5f1d0 | 1257 | |
fbf811ec | 1258 | if (!emc) { |
351dd634 | 1259 | AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ; |
fbf811ec | 1260 | } |
50739f15 | 1261 | |
e3817e5f | 1262 | Float_t e = emc->GetEnergy() ; |
bc0c084c | 1263 | |
6f969528 | 1264 | Float_t lambda[2] ; |
1265 | emc->GetElipsAxis(lambda) ; | |
50739f15 | 1266 | |
1267 | if((lambda[0]>0.01) && (lambda[1]>0.01)){ | |
1268 | // Looking PCA. Define and calculate the data (X), | |
bc0c084c | 1269 | // introduce in the function X2P that gives the components (P). |
1270 | ||
c947e71a | 1271 | Float_t spher = 0. ; |
1272 | Float_t emaxdtotal = 0. ; | |
50739f15 | 1273 | |
bc0c084c | 1274 | if((lambda[0]+lambda[1])!=0) |
c947e71a | 1275 | spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]); |
50739f15 | 1276 | |
c947e71a | 1277 | emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy(); |
50739f15 | 1278 | |
1279 | fX[0] = lambda[0] ; | |
1280 | fX[1] = lambda[1] ; | |
1281 | fX[2] = emc->GetDispersion() ; | |
c947e71a | 1282 | fX[3] = spher ; |
50739f15 | 1283 | fX[4] = emc->GetMultiplicity() ; |
c947e71a | 1284 | fX[5] = emaxdtotal ; |
50739f15 | 1285 | fX[6] = emc->GetCoreEnergy() ; |
1286 | ||
e3817e5f | 1287 | fPrincipalPhoton->X2P(fX,fPPhoton); |
1288 | fPrincipalPi0 ->X2P(fX,fPPi0); | |
1f0e7ccd | 1289 | |
50739f15 | 1290 | } |
1291 | else{ | |
e3817e5f | 1292 | fPPhoton[0]=-100.0; //We do not accept clusters with |
1293 | fPPhoton[1]=-100.0; //one cell as a photon-like | |
1294 | fPPi0[0] =-100.0; | |
1295 | fPPi0[1] =-100.0; | |
50739f15 | 1296 | } |
1297 | ||
2cc71c1e | 1298 | Float_t time = emc->GetTime() ; |
1299 | rp->SetTof(time) ; | |
9fa5f1d0 | 1300 | |
bc0c084c | 1301 | // Loop of Efficiency-Purity (the 3 points of purity or efficiency |
1302 | // are taken into account to set the particle identification) | |
e3817e5f | 1303 | for(Int_t effPur = 0; effPur < 3 ; effPur++){ |
50739f15 | 1304 | |
bc0c084c | 1305 | // Looking at the CPV detector. If RCPV greater than CpvEmcDistance, |
1306 | // 1st,2nd or 3rd bit (depending on the efficiency-purity point ) | |
1307 | // is set to 1 | |
35adb638 | 1308 | if(GetCPVBit(emc, cpv, effPur,e) == 1 ){ |
e3817e5f | 1309 | rp->SetPIDBit(effPur) ; |
35adb638 | 1310 | //cout<<"CPV bit "<<effPur<<endl; |
1311 | } | |
50739f15 | 1312 | // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th |
1313 | // bit (depending on the efficiency-purity point )is set to 1 | |
2cc71c1e | 1314 | if(time< (*fParameters)(3,effPur)) |
e3817e5f | 1315 | rp->SetPIDBit(effPur+3) ; |
2cc71c1e | 1316 | |
e3817e5f | 1317 | //Photon PCA |
50739f15 | 1318 | //If we are inside the ellipse, 7th, 8th or 9th |
1319 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 1320 | if(GetPrincipalBit("photon",fPPhoton,effPur,e) == 1) |
1321 | rp->SetPIDBit(effPur+6) ; | |
1f0e7ccd | 1322 | |
e3817e5f | 1323 | //Pi0 PCA |
1f0e7ccd | 1324 | //If we are inside the ellipse, 10th, 11th or 12th |
1325 | // bit (depending on the efficiency-purity point )is set to 1 | |
e3817e5f | 1326 | if(GetPrincipalBit("pi0" ,fPPi0 ,effPur,e) == 1) |
1327 | rp->SetPIDBit(effPur+9) ; | |
f0a4c9e9 | 1328 | } |
e3817e5f | 1329 | if(GetHardPhotonBit(emc)) |
1330 | rp->SetPIDBit(12) ; | |
1331 | if(GetHardPi0Bit (emc)) | |
1332 | rp->SetPIDBit(13) ; | |
1f0e7ccd | 1333 | |
bd76890a | 1334 | if(track >= 0) |
1335 | rp->SetPIDBit(14) ; | |
1336 | ||
9fa5f1d0 | 1337 | //Set momentum, energy and other parameters |
50739f15 | 1338 | Float_t encal = GetCalibratedEnergy(e); |
9fa5f1d0 | 1339 | TVector3 dir = GetMomentumDirection(emc,cpv) ; |
1340 | dir.SetMag(encal) ; | |
1341 | rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),encal) ; | |
1342 | rp->SetCalcMass(0); | |
e0ed2e49 | 1343 | rp->Name(); //If photon sets the particle pdg name to gamma |
e747b8da | 1344 | rp->SetProductionVertex(0,0,0,0); |
1345 | rp->SetFirstMother(-1); | |
1346 | rp->SetLastMother(-1); | |
1347 | rp->SetFirstDaughter(-1); | |
1348 | rp->SetLastDaughter(-1); | |
1349 | rp->SetPolarisation(0,0,0); | |
d956e9b7 | 1350 | //Set the position in global coordinate system from the RecPoint |
1351 | AliPHOSGeometry * geom = gime->PHOSGeometry() ; | |
1352 | AliPHOSTrackSegment * ts = gime->TrackSegment(rp->GetPHOSTSIndex()) ; | |
1353 | AliPHOSEmcRecPoint * erp = gime->EmcRecPoint(ts->GetEmcIndex()) ; | |
1354 | TVector3 pos ; | |
1355 | geom->GetGlobal(erp, pos) ; | |
1356 | rp->SetPos(pos); | |
6ad0bfa0 | 1357 | index++ ; |
1358 | } | |
6ad0bfa0 | 1359 | } |
e3817e5f | 1360 | |
09fc14a0 | 1361 | //____________________________________________________________________________ |
88cb7938 | 1362 | void AliPHOSPIDv1::Print() const |
09fc14a0 | 1363 | { |
b2a60966 | 1364 | // Print the parameters used for the particle type identification |
bc0c084c | 1365 | |
351dd634 | 1366 | AliInfo("=============== AliPHOSPIDv1 ================") ; |
88cb7938 | 1367 | printf("Making PID\n") ; |
1368 | printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileNamePrincipalPhoton.Data() ) ; | |
1369 | printf(" Name of parameters file %s\n", fFileNameParameters.Data() ) ; | |
1370 | printf(" Matrix of Parameters: 14x4\n") ; | |
1371 | printf(" Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n") ; | |
1372 | printf(" RCPV 2x3 rows x and z, columns function cut parameters\n") ; | |
1373 | printf(" TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n") ; | |
1374 | printf(" PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n") ; | |
1375 | Printf(" Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n") ; | |
50739f15 | 1376 | fParameters->Print() ; |
09fc14a0 | 1377 | } |
1378 | ||
a496c46c | 1379 | |
69183710 | 1380 | |
7acf6008 | 1381 | //____________________________________________________________________________ |
a4e98857 | 1382 | void AliPHOSPIDv1::PrintRecParticles(Option_t * option) |
1383 | { | |
dd5c4038 | 1384 | // Print table of reconstructed particles |
1385 | ||
88cb7938 | 1386 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; |
bf8f1fbd | 1387 | |
88cb7938 | 1388 | TClonesArray * recParticles = gime->RecParticles() ; |
21cd0c07 | 1389 | |
1390 | TString message ; | |
3bf72d32 | 1391 | message = "\nevent " ; |
1392 | message += gAlice->GetEvNumber() ; | |
1393 | message += " found " ; | |
1394 | message += recParticles->GetEntriesFast(); | |
1395 | message += " RecParticles\n" ; | |
1396 | ||
7acf6008 | 1397 | if(strstr(option,"all")) { // printing found TS |
3bf72d32 | 1398 | message += "\n PARTICLE Index \n" ; |
7acf6008 | 1399 | |
1400 | Int_t index ; | |
7b7c1533 | 1401 | for (index = 0 ; index < recParticles->GetEntries() ; index++) { |
21cd0c07 | 1402 | AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ; |
3bf72d32 | 1403 | message += "\n" ; |
1404 | message += rp->Name().Data() ; | |
1405 | message += " " ; | |
1406 | message += rp->GetIndexInList() ; | |
1407 | message += " " ; | |
1408 | message += rp->GetType() ; | |
7acf6008 | 1409 | } |
3bf72d32 | 1410 | } |
351dd634 | 1411 | AliInfo(message.Data() ) ; |
69183710 | 1412 | } |
88cb7938 | 1413 | |
1414 | //____________________________________________________________________________ | |
1415 | void AliPHOSPIDv1::SetParameters() | |
1416 | { | |
1417 | // PCA : To do the Principal Components Analysis it is necessary | |
1418 | // the Principal file, which is opened here | |
1419 | fX = new double[7]; // Data for the PCA | |
1420 | fPPhoton = new double[7]; // Eigenvalues of the PCA | |
1421 | fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA | |
1422 | ||
1423 | // Read photon principals from the photon file | |
1424 | ||
1425 | fFileNamePrincipalPhoton = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ; | |
1426 | TFile f( fFileNamePrincipalPhoton.Data(), "read" ) ; | |
1427 | fPrincipalPhoton = dynamic_cast<TPrincipal*> (f.Get("principal")) ; | |
1428 | f.Close() ; | |
1429 | ||
1430 | // Read pi0 principals from the pi0 file | |
1431 | ||
1432 | fFileNamePrincipalPi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ; | |
1433 | TFile fPi0( fFileNamePrincipalPi0.Data(), "read" ) ; | |
1434 | fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ; | |
1435 | fPi0.Close() ; | |
1436 | ||
1437 | // Open parameters file and initialization of the Parameters matrix. | |
1438 | // In the File Parameters.dat are all the parameters. These are introduced | |
1439 | // in a matrix of 16x4 | |
1440 | // | |
1441 | // All the parameters defined in this file are, in order of row: | |
1442 | // line 0 : calibration | |
1443 | // lines 1,2 : CPV rectangular cat for X and Z | |
1444 | // line 3 : TOF cut | |
1445 | // lines 4-8 : parameters to calculate photon PCA ellipse | |
1446 | // lines 9-13: parameters to calculate pi0 PCA ellipse | |
1447 | // lines 14-15: parameters to calculate border for high-pt photons and pi0 | |
1448 | ||
1449 | fFileNameParameters = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat"); | |
1450 | fParameters = new TMatrix(16,4) ; | |
c947e71a | 1451 | const Int_t kMaxLeng=255; |
1452 | char string[kMaxLeng]; | |
88cb7938 | 1453 | |
1454 | // Open a text file with PID parameters | |
1455 | FILE *fd = fopen(fFileNameParameters.Data(),"r"); | |
1456 | if (!fd) | |
351dd634 | 1457 | AliFatal(Form("File %s with a PID parameters cannot be opened\n", |
1458 | fFileNameParameters.Data())); | |
88cb7938 | 1459 | |
1460 | Int_t i=0; | |
1461 | // Read parameter file line-by-line and skip empty line and comments | |
c947e71a | 1462 | while (fgets(string,kMaxLeng,fd) != NULL) { |
88cb7938 | 1463 | if (string[0] == '\n' ) continue; |
1464 | if (string[0] == '!' ) continue; | |
1465 | sscanf(string, "%f %f %f %f", | |
1466 | &(*fParameters)(i,0), &(*fParameters)(i,1), | |
1467 | &(*fParameters)(i,2), &(*fParameters)(i,3)); | |
1468 | i++; | |
351dd634 | 1469 | AliDebug(1, Form("SetParameters", "line %d: %s",i,string)); |
88cb7938 | 1470 | } |
1471 | fclose(fd); | |
1472 | } | |
1473 | ||
1474 | //____________________________________________________________________________ | |
1475 | void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param) | |
1476 | { | |
1477 | // Set parameter "Calibration" i to a value param | |
351dd634 | 1478 | if(i>2 || i<0) { |
1479 | AliError(Form("Invalid parameter number: %d",i)); | |
1480 | } else | |
88cb7938 | 1481 | (*fParameters)(0,i) = param ; |
1482 | } | |
1483 | ||
1484 | //____________________________________________________________________________ | |
1485 | void AliPHOSPIDv1::SetParameterCpv2Emc(Int_t i, TString axis, Float_t cut) | |
1486 | { | |
1487 | // Set the parameters to calculate Cpv-to-Emc Distance Cut depending on | |
1488 | // Purity-Efficiency point i | |
1489 | ||
351dd634 | 1490 | if(i>2 || i<0) { |
1491 | AliError(Form("Invalid parameter number: %d",i)); | |
1492 | } else { | |
88cb7938 | 1493 | axis.ToLower(); |
1494 | if (axis == "x") (*fParameters)(1,i) = cut; | |
1495 | else if (axis == "z") (*fParameters)(2,i) = cut; | |
351dd634 | 1496 | else { |
1497 | AliError(Form("Invalid axis name: %s",axis.Data())); | |
1498 | } | |
88cb7938 | 1499 | } |
1500 | } | |
1501 | ||
1502 | //____________________________________________________________________________ | |
1503 | void AliPHOSPIDv1::SetParameterPhotonBoundary(Int_t i,Float_t param) | |
1504 | { | |
1505 | // Set parameter "Hard photon boundary" i to a value param | |
351dd634 | 1506 | if(i>4 || i<0) { |
1507 | AliError(Form("Invalid parameter number: %d",i)); | |
1508 | } else | |
88cb7938 | 1509 | (*fParameters)(14,i) = param ; |
1510 | } | |
1511 | ||
1512 | //____________________________________________________________________________ | |
1513 | void AliPHOSPIDv1::SetParameterPi0Boundary(Int_t i,Float_t param) | |
1514 | { | |
1515 | // Set parameter "Hard pi0 boundary" i to a value param | |
351dd634 | 1516 | if(i>1 || i<0) { |
1517 | AliError(Form("Invalid parameter number: %d",i)); | |
1518 | } else | |
88cb7938 | 1519 | (*fParameters)(15,i) = param ; |
1520 | } | |
1521 | ||
1522 | //_____________________________________________________________________________ | |
1523 | void AliPHOSPIDv1::SetParameterTimeGate(Int_t i, Float_t gate) | |
1524 | { | |
1525 | // Set the parameter TimeGate depending on Purity-Efficiency point i | |
351dd634 | 1526 | if (i>2 || i<0) { |
1527 | AliError(Form("Invalid Efficiency-Purity choice %d",i)); | |
1528 | } else | |
88cb7938 | 1529 | (*fParameters)(3,i)= gate ; |
1530 | } | |
1531 | ||
1532 | //_____________________________________________________________________________ | |
1533 | void AliPHOSPIDv1::SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t par) | |
1534 | { | |
1535 | // Set the parameter "i" that is needed to calculate the ellipse | |
1536 | // parameter "param" for a particle "particle" | |
1537 | ||
1538 | particle.ToLower(); | |
1539 | param. ToLower(); | |
1540 | Int_t p= -1; | |
1541 | Int_t offset=0; | |
1542 | ||
1543 | if (particle == "photon") offset=0; | |
1544 | else if (particle == "pi0") offset=5; | |
1545 | else | |
351dd634 | 1546 | AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n", |
1547 | particle.Data())); | |
88cb7938 | 1548 | |
1549 | if (param.Contains("a")) p=4+offset; | |
1550 | else if(param.Contains("b")) p=5+offset; | |
1551 | else if(param.Contains("c")) p=6+offset; | |
1552 | else if(param.Contains("x0"))p=7+offset; | |
1553 | else if(param.Contains("y0"))p=8+offset; | |
351dd634 | 1554 | if((i>4)||(i<0)) { |
1555 | AliError(Form("No parameter with index %d", i)) ; | |
1556 | } else if(p==-1) { | |
1557 | AliError(Form("No parameter with name %s", param.Data() )) ; | |
1558 | } else | |
88cb7938 | 1559 | (*fParameters)(p,i) = par ; |
1560 | } | |
1561 | ||
1562 | //____________________________________________________________________________ | |
1563 | void AliPHOSPIDv1::Unload() | |
1564 | { | |
c947e71a | 1565 | //Unloads RecPoints, Tracks and RecParticles |
88cb7938 | 1566 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
1567 | gime->PhosLoader()->UnloadRecPoints() ; | |
1568 | gime->PhosLoader()->UnloadTracks() ; | |
1569 | gime->PhosLoader()->UnloadRecParticles() ; | |
1570 | } | |
1571 | ||
1572 | //____________________________________________________________________________ | |
90cceaf6 | 1573 | void AliPHOSPIDv1::WriteRecParticles() |
88cb7938 | 1574 | { |
c947e71a | 1575 | //It writes reconstructed particles and pid to file |
1576 | ||
88cb7938 | 1577 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; |
1578 | ||
1579 | TClonesArray * recParticles = gime->RecParticles() ; | |
1580 | recParticles->Expand(recParticles->GetEntriesFast() ) ; | |
adcca1e6 | 1581 | if(fWrite){ |
1582 | TTree * treeP = gime->TreeP(); | |
1583 | ||
1584 | //First rp | |
1585 | Int_t bufferSize = 32000 ; | |
1586 | TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize); | |
1587 | rpBranch->SetTitle(BranchName()); | |
1588 | ||
1589 | rpBranch->Fill() ; | |
1590 | ||
1591 | gime->WriteRecParticles("OVERWRITE"); | |
1592 | gime->WritePID("OVERWRITE"); | |
1593 | } | |
88cb7938 | 1594 | } |
1595 | ||
35adb638 | 1596 | |
1597 | //_______________________________________________________________________ | |
1598 | void AliPHOSPIDv1::SetInitPID(const Double_t *p) { | |
1599 | // Sets values for the initial population of each particle type | |
304864ab | 1600 | for (Int_t i=0; i<AliPID::kSPECIESN; i++) fInitPID[i] = p[i]; |
35adb638 | 1601 | } |
1602 | //_______________________________________________________________________ | |
1603 | void AliPHOSPIDv1::GetInitPID(Double_t *p) const { | |
1604 | // Gets values for the initial population of each particle type | |
304864ab | 1605 | for (Int_t i=0; i<AliPID::kSPECIESN; i++) p[i] = fInitPID[i]; |
35adb638 | 1606 | } |