Raw data size should be in bytes instead of words.
[u/mrichter/AliRoot.git] / PHOS / AliPHOSPIDv1.cxx
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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 ---
85#include "TF1.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 98ClassImp( AliPHOSPIDv1)
6ad0bfa0 99
1cb7c1ee 100//____________________________________________________________________________
101AliPHOSPIDv1::AliPHOSPIDv1():AliPHOSPID()
102{
a4e98857 103 // default ctor
148b2bba 104
8d0f3f77 105 InitParameters() ;
92f521a9 106 fDefaultInit = kTRUE ;
7acf6008 107}
108
581354c5 109//____________________________________________________________________________
88cb7938 110AliPHOSPIDv1::AliPHOSPIDv1(const AliPHOSPIDv1 & pid ):AliPHOSPID(pid)
581354c5 111{
386aef34 112 // ctor
581354c5 113 InitParameters() ;
581354c5 114 Init() ;
581354c5 115
116}
117
7acf6008 118//____________________________________________________________________________
88cb7938 119AliPHOSPIDv1::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//____________________________________________________________________________
129AliPHOSPIDv1::~AliPHOSPIDv1()
130{
79bb1b62 131 // dtor
9fa5f1d0 132
e3817e5f 133 delete [] fX ; // Principal input
134 delete [] fPPhoton ; // Photon Principal components
135 delete [] fPPi0 ; // Pi0 Principal components
7acf6008 136}
a496c46c 137//____________________________________________________________________________
138const TString AliPHOSPIDv1::BranchName() const
139{
88cb7938 140
141 return GetName() ;
a496c46c 142}
143
148b2bba 144//____________________________________________________________________________
145void AliPHOSPIDv1::Init()
146{
147 // Make all memory allocations that are not possible in default constructor
148 // Add the PID task to the list of PHOS tasks
a496c46c 149
adcca1e6 150 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
151 if(!gime)
152 gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()) ;
88cb7938 153
154 if ( !gime->PID() )
155 gime->PostPID(this) ;
148b2bba 156}
8d0f3f77 157
158//____________________________________________________________________________
159void AliPHOSPIDv1::InitParameters()
160{
e3817e5f 161 // Initialize PID parameters
adcca1e6 162 fWrite = kTRUE ;
8d0f3f77 163 fRecParticlesInRun = 0 ;
8d0f3f77 164 fNEvent = 0 ;
8d0f3f77 165 fRecParticlesInRun = 0 ;
35adb638 166 fBayesian = kTRUE ;
9fa5f1d0 167 SetParameters() ; // fill the parameters matrix from parameters file
eabde521 168 SetEventRange(0,-1) ;
35adb638 169
cc1fe362 170 // initialisation of response function parameters
171 // Tof
172 // Photons
35adb638 173 fTphoton[0] = 0.218 ;
174 //fTphoton[0] = 1. ;
175 fTphoton[1] = 1.55E-8 ;
176 fTphoton[2] = 5.05E-10 ;
177 fTFphoton = new TFormula("ToF response to photons" , "gaus") ;
cc1fe362 178 fTFphoton->SetParameters( fTphoton[0], fTphoton[1], fTphoton[2]) ;
35adb638 179// // Electrons
180// fTelectron[0] = 0.2 ;
181// fTelectron[1] = 1.55E-8 ;
182// fTelectron[2] = 5.35E-10 ;
183// fTFelectron = new TFormula("ToF response to electrons" , "gaus") ;
184// fTFelectron->SetParameters( fTelectron[0], fTelectron[1], fTelectron[2]) ;
185// // Muons
186// fTmuon[0] = 0.2 ;
187// fTmuon[1] = 1.55E-8 ;
188// fTmuon[2] = 5.1E-10 ;
189// fTFmuon = new TFormula("ToF response to muons" , "gaus") ;
190// fTFmuon->SetParameters( fTmuon[0], fTmuon[1], fTmuon[2]) ;
191
192 // Pions
193 //Gaus (0 to max probability)
194 fTpiong[0] = 0.0971 ;
195 //fTpiong[0] = 1. ;
196 fTpiong[1] = 1.58E-8 ;
197 fTpiong[2] = 5.69E-10 ;
198 fTFpiong = new TFormula("ToF response to pions" , "gaus") ;
199 fTFpiong->SetParameters( fTpiong[0], fTpiong[1], fTpiong[2]) ;
200 // Landau (max probability to inf)
201// fTpionl[0] = 0.05 ;
202// //fTpionl[0] = 5.53 ;
203// fTpionl[1] = 1.68E-8 ;
204// fTpionl[2] = 5.38E-10 ;
205// fTFpionl = new TFormula("ToF response to pions" , "landau") ;
206// fTFpionl->SetParameters( fTpionl[0], fTpionl[1], fTpionl[2]) ;
207
208
209 // Kaons
210 //Gaus (0 to max probability)
211 fTkaong[0] = 0.0542 ;
212 //fTkaong[0] = 1. ;
213 fTkaong[1] = 1.64E-8 ;
214 fTkaong[2] = 6.07-10 ;
215 fTFkaong = new TFormula("ToF response to kaon" , "gaus") ;
216 fTFkaong->SetParameters( fTkaong[0], fTkaong[1], fTkaong[2]) ;
217 //Landau (max probability to inf)
218 fTkaonl[0] = 0.264 ;
219 //fTkaonl[0] = 5.53 ;
220 fTkaonl[1] = 1.68E-8 ;
221 fTkaonl[2] = 4.10E-10 ;
222 fTFkaonl = new TFormula("ToF response to kaon" , "landau") ;
223 fTFkaonl->SetParameters( fTkaonl[0], fTkaonl[1], fTkaonl[2]) ;
224
225 //Heavy Hadrons
226 //Gaus (0 to max probability)
227 fThhadrong[0] = 0.0302 ;
228 //fThhadrong[0] = 1. ;
229 fThhadrong[1] = 1.73E-8 ;
230 fThhadrong[2] = 9.52E-10 ;
231 fTFhhadrong = new TFormula("ToF response to heavy hadrons" , "gaus") ;
232 fTFhhadrong->SetParameters( fThhadrong[0], fThhadrong[1], fThhadrong[2]) ;
233 //Landau (max probability to inf)
234 fThhadronl[0] = 0.139 ;
235 //fThhadronl[0] = 5.53 ;
236 fThhadronl[1] = 1.745E-8 ;
237 fThhadronl[2] = 1.00E-9 ;
238 fTFhhadronl = new TFormula("ToF response to heavy hadrons" , "landau") ;
239 fTFhhadronl->SetParameters( fThhadronl[0], fThhadronl[1], fThhadronl[2]) ;
240
241/// /gaussian parametrization for pions
242// fTpion[0] = 3.93E-2 ; fTpion[1] = 0.130 ; fTpion[2] =-6.37E-2 ;//constant
243// fTpion[3] = 1.65E-8 ; fTpion[4] =-1.40E-9 ; fTpion[5] = 5.96E-10;//mean
244// fTpion[6] = 8.09E-10; fTpion[7] =-4.65E-10; fTpion[8] = 1.50E-10;//sigma
245
246// //landau parametrization for kaons
247// fTkaon[0] = 0.107 ; fTkaon[1] = 0.166 ; fTkaon[2] = 0.243 ;//constant
248// fTkaon[3] = 1.80E-8 ; fTkaon[4] =-2.96E-9 ; fTkaon[5] = 9.60E-10;//mean
249// fTkaon[6] = 1.37E-9 ; fTkaon[7] =-1.80E-9 ; fTkaon[8] = 6.74E-10;//sigma
250
251// //landau parametrization for nucleons
252// fThhadron[0] = 6.33E-2 ; fThhadron[1] = 2.52E-2 ; fThhadron[2] = 2.16E-2 ;//constant
253// fThhadron[3] = 1.94E-8 ; fThhadron[4] =-7.06E-10; fThhadron[5] =-4.69E-10;//mean
254// fThhadron[6] = 2.55E-9 ; fThhadron[7] =-1.90E-9 ; fThhadron[8] = 5.41E-10;//sigma
255
256
257 // Shower shape: dispersion gaussian parameters
258 // Photons
259
c947e71a 260// fDphoton[0] = 3.84e-2; fDphoton[1] = 4.46e-3 ; fDphoton[2] = -2.36e-2;//constant
261// //fDphoton[0] = 1.0 ; fDphoton[1] = 0. ; fDphoton[2] = 0. ;//constant
262// fDphoton[3] = 1.55 ; fDphoton[4] =-0.0863 ; fDphoton[5] = 0.287 ;//mean
263// fDphoton[6] = 0.0451 ; fDphoton[7] =-0.0803 ; fDphoton[8] = 0.314 ;//sigma
264
265 fDphoton[0] = 4.62e-2; fDphoton[1] = 1.39e-2 ; fDphoton[2] = -3.80e-2;//constant
266 //fDphoton[0] = 1.0 ; fDphoton[1] = 0. ; fDphoton[2] = 0. ;//constant
267 fDphoton[3] = 1.53 ; fDphoton[4] =-6.62e-2 ; fDphoton[5] = 0.339 ;//mean
268 fDphoton[6] = 6.89e-2; fDphoton[7] =-6.59e-2 ; fDphoton[8] = 0.194 ;//sigma
35adb638 269
270 fDpi0[0] = 0.0586 ; fDpi0[1] = 1.06E-3 ; fDpi0[2] = 0. ;//constant
271 //fDpi0[0] = 1.0 ; fDpi0[1] = 0.0 ; fDpi0[2] = 0. ;//constant
272 fDpi0[3] = 2.67 ; fDpi0[4] =-2.00E-2 ; fDpi0[5] = 9.37E-5 ;//mean
273 fDpi0[6] = 0.153 ; fDpi0[7] = 9.34E-4 ; fDpi0[8] =-1.49E-5 ;//sigma
274 //landau
275// fDhadron[0] = 0.007 ; fDhadron[1] = 0. ; fDhadron[2] = 0. ;//constant
276// //fDhadron[0] = 5.53 ; fDhadron[1] = 0. ; fDhadron[2] = 0. ;//constant
277// fDhadron[3] = 3.38 ; fDhadron[4] = 0.0833 ; fDhadron[5] =-0.845 ;//mean
278// fDhadron[6] = 0.627 ; fDhadron[7] = 0.012 ; fDhadron[8] =-0.170 ;//sigma
279
c947e71a 280 fDhadron[0] = 1.61E-2 ; fDhadron[1] = 3.03E-3 ; fDhadron[2] = 1.01E-2 ;//constant
281 fDhadron[3] = 3.81 ; fDhadron[4] = 0.232 ; fDhadron[5] =-1.25 ;//mean
282 fDhadron[6] = 0.897 ; fDhadron[7] = 0.0987 ; fDhadron[8] =-0.534 ;//sigma
35adb638 283 // Muons
284 fDmuon[0] = 0.0631 ;
285 fDmuon[1] = 1.4 ;
286 fDmuon[2] = 0.0557 ;
287 fDFmuon = new TFormula("Shower shape response to muons" , "landau") ;
288 fDFmuon->SetParameters( fDmuon[0], fDmuon[1], fDmuon[2]) ;
289
35adb638 290
c947e71a 291 // x(CPV-EMC) distance gaussian parameters
292
293 fXelectron[0] = 8.06e-2 ; fXelectron[1] = 1.00e-2; fXelectron[2] =-5.14e-2;//constant
294 //fXelectron[0] = 1.0 ; fXelectron[1] = 0. ; fXelectron[2] = 0. ;//constant
295 fXelectron[3] = 0.202 ; fXelectron[4] = 8.15e-3; fXelectron[5] = 4.55 ;//mean
296 fXelectron[6] = 0.334 ; fXelectron[7] = 0.186 ; fXelectron[8] = 4.32e-2;//sigma
297
298 //charged hadrons gaus
299 fXcharged[0] = 6.43e-3 ; fXcharged[1] =-4.19e-5; fXcharged[2] = 1.42e-3;//constant
300 fXcharged[3] = 2.75 ; fXcharged[4] =-0.40 ; fXcharged[5] = 1.68 ;//mean
301 fXcharged[6] = 3.135 ; fXcharged[7] =-9.41e-2; fXcharged[8] = 1.31e-2;//sigma
302
303 // z(CPV-EMC) distance gaussian parameters
304
305 fZelectron[0] = 8.22e-2 ; fZelectron[1] = 5.11e-3; fZelectron[2] =-3.05e-2;//constant
306 //fZelectron[0] = 1.0 ; fZelectron[1] = 0. ; fZelectron[2] = 0. ;//constant
307 fZelectron[3] = 3.09e-2 ; fZelectron[4] = 5.87e-2; fZelectron[5] =-9.49e-2;//mean
308 fZelectron[6] = 0.263 ; fZelectron[7] =-9.02e-3; fZelectron[8] = 0.151 ;//sigma
309
310 //charged hadrons gaus
311
312 fZcharged[0] = 1.00e-2 ; fZcharged[1] = 2.82E-4 ; fZcharged[2] = 2.87E-3 ;//constant
313 fZcharged[3] =-4.68e-2 ; fZcharged[4] =-9.21e-3 ; fZcharged[5] = 4.91e-2 ;//mean
314 fZcharged[6] = 1.425 ; fZcharged[7] =-5.90e-2 ; fZcharged[8] = 5.07e-2 ;//sigma
315
35adb638 316 for (Int_t i =0; i< AliESDtrack::kSPECIESN ; i++)
317 fInitPID[i] = 1.;
318
8d0f3f77 319}
320
88cb7938 321//________________________________________________________________________
eabde521 322void AliPHOSPIDv1::Exec(Option_t *option)
88cb7938 323{
eabde521 324 // Steering method to perform particle reconstruction and identification
325 // for the event range from fFirstEvent to fLastEvent.
326 // This range is optionally set by SetEventRange().
327 // if fLastEvent=-1 (by default), then process events until the end.
61d3d6aa 328
88cb7938 329 if(strstr(option,"tim"))
330 gBenchmark->Start("PHOSPID");
331
332 if(strstr(option,"print")) {
333 Print() ;
334 return ;
335 }
336
337
adcca1e6 338 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
88cb7938 339
71cee46d 340 if (fLastEvent == -1)
341 fLastEvent = gime->MaxEvent() - 1 ;
342 else
343 fLastEvent = TMath::Min(fLastEvent,gime->MaxEvent());
eabde521 344 Int_t nEvents = fLastEvent - fFirstEvent + 1;
88cb7938 345
71cee46d 346 Int_t ievent ;
347 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
88cb7938 348 gime->Event(ievent,"TR") ;
349 if(gime->TrackSegments() && //Skip events, where no track segments made
350 gime->TrackSegments()->GetEntriesFast()) {
351 MakeRecParticles() ;
35adb638 352
353 if(fBayesian)
354 MakePID() ;
355
90cceaf6 356 WriteRecParticles();
88cb7938 357 if(strstr(option,"deb"))
358 PrintRecParticles(option) ;
359 //increment the total number of rec particles per run
360 fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ;
361 }
362 }
ff417097 363 if(strstr(option,"deb"))
364 PrintRecParticles(option);
88cb7938 365 if(strstr(option,"tim")){
366 gBenchmark->Stop("PHOSPID");
351dd634 367 AliInfo(Form("took %f seconds for PID %f seconds per event",
88cb7938 368 gBenchmark->GetCpuTime("PHOSPID"),
351dd634 369 gBenchmark->GetCpuTime("PHOSPID")/nEvents)) ;
88cb7938 370 }
adcca1e6 371 if(fWrite)
372 Unload();
88cb7938 373}
374
35adb638 375//________________________________________________________________________
c947e71a 376const Double_t AliPHOSPIDv1::GausF(Double_t x, Double_t y, Double_t * par)
35adb638 377{
c947e71a 378 //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
379 //this method returns a density probability of this parameter, given by a gaussian
380 //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b
381 Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ;
35adb638 382 Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ;
383 Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ;
c947e71a 384
35adb638 385 // Double_t arg = - (y-mean) * (y-mean) / (2*sigma*sigma) ;
386 // return cnt * TMath::Exp(arg) ;
c947e71a 387 if(TMath::Abs(sigma) > 1.e-10){
35adb638 388 TF1 * f = new TF1("gaus","gaus",0,100);
389 f->SetParameters(cnt,mean,sigma);
35adb638 390 Double_t arg = f->Eval(y) ;
c947e71a 391 //cout<<"GausF : en "<<x<<" y "<<y<<" c "<< cnt << " mean "<<mean<<" sigma "<<sigma<<endl;
35adb638 392 return arg;
393 }
394 else
395 return 0.;
c947e71a 396
35adb638 397}
398//________________________________________________________________________
c947e71a 399const Double_t AliPHOSPIDv1::GausPol2(Double_t x, Double_t y, Double_t * par)
35adb638 400{
c947e71a 401 //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
402 //this method returns a density probability of this parameter, given by a gaussian
403 //function whose parameters depend with the energy like second order polinomial
404
35adb638 405 Double_t cnt = par[0] + par[1] * x + par[2] * x * x ;
406 Double_t mean = par[3] + par[4] * x + par[5] * x * x ;
407 Double_t sigma = par[6] + par[7] * x + par[8] * x * x ;
408
c947e71a 409 if(TMath::Abs(sigma) > 1.e-10){
35adb638 410 TF1 * f = new TF1("gaus","gaus",0,100);
411 f->SetParameters(cnt,mean,sigma);
412 Double_t arg = f->Eval(y) ;
c947e71a 413 //cout<<"GausPol : en "<<x<<" y "<<y<<" c "<< cnt << " mean "<<mean<<" sigma "<<sigma<<endl;
414
35adb638 415 return arg;
416 }
417 else
418 return 0.;
c947e71a 419
420
421
35adb638 422}
423
69183710 424//____________________________________________________________________________
e3817e5f 425const TString AliPHOSPIDv1::GetFileNamePrincipal(TString particle) const
148b2bba 426{
e3817e5f 427 //Get file name that contains the PCA for a particle ("photon or pi0")
428 particle.ToLower();
429 TString name;
351dd634 430 if (particle=="photon")
431 name = fFileNamePrincipalPhoton ;
432 else if (particle=="pi0" )
433 name = fFileNamePrincipalPi0 ;
434 else
435 AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n",
436 particle.Data()));
e3817e5f 437 return name;
438}
bc0c084c 439
e3817e5f 440//____________________________________________________________________________
fc7e2f43 441Float_t AliPHOSPIDv1::GetParameterCalibration(Int_t i) const
e3817e5f 442{
443 // Get the i-th parameter "Calibration"
444 Float_t param = 0.;
351dd634 445 if (i>2 || i<0) {
446 AliError(Form("Invalid parameter number: %d",i));
447 } else
e3817e5f 448 param = (*fParameters)(0,i);
449 return param;
450}
bc0c084c 451
88cb7938 452//____________________________________________________________________________
fc7e2f43 453Float_t AliPHOSPIDv1::GetCalibratedEnergy(Float_t e) const
88cb7938 454{
455// It calibrates Energy depending on the recpoint energy.
456// The energy of the reconstructed cluster is corrected with
457// the formula A + B* E + C* E^2, whose parameters where obtained
458// through the study of the reconstructed energy distribution of
459// monoenergetic photons.
460
461 Float_t p[]={0.,0.,0.};
462 for (Int_t i=0; i<3; i++) p[i] = GetParameterCalibration(i);
463 Float_t enerec = p[0] + p[1]*e + p[2]*e*e;
464 return enerec ;
465
466}
467
e3817e5f 468//____________________________________________________________________________
fc7e2f43 469Float_t AliPHOSPIDv1::GetParameterCpv2Emc(Int_t i, TString axis) const
e3817e5f 470{
471 // Get the i-th parameter "CPV-EMC distance" for the specified axis
472 Float_t param = 0.;
351dd634 473 if(i>2 || i<0) {
474 AliError(Form("Invalid parameter number: %d",i));
475 } else {
e3817e5f 476 axis.ToLower();
351dd634 477 if (axis == "x")
478 param = (*fParameters)(1,i);
479 else if (axis == "z")
480 param = (*fParameters)(2,i);
481 else {
482 AliError(Form("Invalid axis name: %s",axis.Data()));
483 }
e3817e5f 484 }
485 return param;
486}
487
488//____________________________________________________________________________
fc7e2f43 489Float_t AliPHOSPIDv1::GetCpv2EmcDistanceCut(TString axis, Float_t e) const
e3817e5f 490{
88cb7938 491 // Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
492 // Purity-Efficiency point
493
494 axis.ToLower();
495 Float_t p[]={0.,0.,0.};
496 for (Int_t i=0; i<3; i++) p[i] = GetParameterCpv2Emc(i,axis);
497 Float_t sig = p[0] + TMath::Exp(p[1] - p[2]*e);
498 return sig;
e3817e5f 499}
500
88cb7938 501//____________________________________________________________________________
fc7e2f43 502Float_t AliPHOSPIDv1::GetEllipseParameter(TString particle, TString param, Float_t e) const
88cb7938 503{
504 // Calculates the parameter param of the ellipse
e3817e5f 505
506 particle.ToLower();
507 param. ToLower();
88cb7938 508 Float_t p[4]={0.,0.,0.,0.};
509 Float_t value = 0.0;
510 for (Int_t i=0; i<4; i++) p[i] = GetParameterToCalculateEllipse(particle,param,i);
511 if (particle == "photon") {
512 if (param.Contains("a")) e = TMath::Min((Double_t)e,70.);
513 else if (param.Contains("b")) e = TMath::Min((Double_t)e,70.);
514 else if (param.Contains("x0")) e = TMath::Max((Double_t)e,1.1);
515 }
e3817e5f 516
443caba9 517 if (particle == "photon")
518 value = p[0]/TMath::Sqrt(e) + p[1]*e + p[2]*e*e + p[3];
519 else if (particle == "pi0")
520 value = p[0] + p[1]*e + p[2]*e*e;
521
88cb7938 522 return value;
e3817e5f 523}
524
525//_____________________________________________________________________________
fc7e2f43 526Float_t AliPHOSPIDv1::GetParameterPhotonBoundary (Int_t i) const
e3817e5f 527{
528 // Get the parameter "i" to calculate the boundary on the moment M2x
529 // for photons at high p_T
530 Float_t param = 0;
351dd634 531 if (i>3 || i<0) {
532 AliError(Form("Wrong parameter number: %d\n",i));
533 } else
e3817e5f 534 param = (*fParameters)(14,i) ;
535 return param;
148b2bba 536}
e3817e5f 537
148b2bba 538//____________________________________________________________________________
fc7e2f43 539Float_t AliPHOSPIDv1::GetParameterPi0Boundary (Int_t i) const
e3817e5f 540{
541 // Get the parameter "i" to calculate the boundary on the moment M2x
542 // for pi0 at high p_T
543 Float_t param = 0;
351dd634 544 if (i>2 || i<0) {
545 AliError(Form("Wrong parameter number: %d\n",i));
546 } else
e3817e5f 547 param = (*fParameters)(15,i) ;
548 return param;
549}
148b2bba 550
e3817e5f 551//____________________________________________________________________________
fc7e2f43 552Float_t AliPHOSPIDv1::GetParameterTimeGate(Int_t i) const
e3817e5f 553{
88cb7938 554 // Get TimeGate parameter depending on Purity-Efficiency i:
555 // i=0 - Low purity, i=1 - Medium purity, i=2 - High purity
556 Float_t param = 0.;
351dd634 557 if(i>2 || i<0) {
558 AliError(Form("Invalid Efficiency-Purity choice %d",i));
559 } else
88cb7938 560 param = (*fParameters)(3,i) ;
561 return param;
e3817e5f 562}
563
148b2bba 564//_____________________________________________________________________________
fc7e2f43 565Float_t AliPHOSPIDv1::GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const
88cb7938 566{
567 // Get the parameter "i" that is needed to calculate the ellipse
568 // parameter "param" for the particle "particle" ("photon" or "pi0")
569
e3817e5f 570 particle.ToLower();
571 param. ToLower();
88cb7938 572 Int_t offset = -1;
351dd634 573 if (particle == "photon")
574 offset=0;
575 else if (particle == "pi0")
576 offset=5;
e3817e5f 577 else
351dd634 578 AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n",
579 particle.Data()));
88cb7938 580
581 Int_t p= -1;
582 Float_t par = 0;
e3817e5f 583
584 if (param.Contains("a")) p=4+offset;
585 else if(param.Contains("b")) p=5+offset;
586 else if(param.Contains("c")) p=6+offset;
587 else if(param.Contains("x0"))p=7+offset;
588 else if(param.Contains("y0"))p=8+offset;
12022e83 589
351dd634 590 if (i>4 || i<0) {
591 AliError(Form("No parameter with index %d", i)) ;
592 } else if (p==-1) {
593 AliError(Form("No parameter with name %s", param.Data() )) ;
594 } else
88cb7938 595 par = (*fParameters)(p,i) ;
596
597 return par;
12022e83 598}
599
12022e83 600
601//____________________________________________________________________________
8d4608b5 602Float_t AliPHOSPIDv1::GetDistance(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Option_t * axis)const
69183710 603{
604 // Calculates the distance between the EMC RecPoint and the PPSD RecPoint
148b2bba 605
88cb7938 606 const AliPHOSGeometry * geom = AliPHOSGetter::Instance()->PHOSGeometry() ;
69183710 607 TVector3 vecEmc ;
7acf6008 608 TVector3 vecCpv ;
148b2bba 609 if(cpv){
610 emc->GetLocalPosition(vecEmc) ;
611 cpv->GetLocalPosition(vecCpv) ;
2bb500e5 612
148b2bba 613 if(emc->GetPHOSMod() == cpv->GetPHOSMod()){
614 // Correct to difference in CPV and EMC position due to different distance to center.
615 // we assume, that particle moves from center
616 Float_t dCPV = geom->GetIPtoOuterCoverDistance();
617 Float_t dEMC = geom->GetIPtoCrystalSurface() ;
618 dEMC = dEMC / dCPV ;
619 vecCpv = dEMC * vecCpv - vecEmc ;
e3817e5f 620 if (axis == "X") return vecCpv.X();
621 if (axis == "Y") return vecCpv.Y();
622 if (axis == "Z") return vecCpv.Z();
623 if (axis == "R") return vecCpv.Mag();
624 }
148b2bba 625 return 100000000 ;
626 }
7acf6008 627 return 100000000 ;
69183710 628}
bc0c084c 629//____________________________________________________________________________
8d4608b5 630Int_t AliPHOSPIDv1::GetCPVBit(AliPHOSEmcRecPoint * emc,AliPHOSCpvRecPoint * cpv, Int_t effPur, Float_t e) const
bc0c084c 631{
c947e71a 632 //Calculates the pid bit for the CPV selection per each purity.
e3817e5f 633 if(effPur>2 || effPur<0)
351dd634 634 AliError(Form("Invalid Efficiency-Purity choice %d",effPur));
bc0c084c 635
e3817e5f 636 Float_t sigX = GetCpv2EmcDistanceCut("X",e);
637 Float_t sigZ = GetCpv2EmcDistanceCut("Z",e);
bc0c084c 638
639 Float_t deltaX = TMath::Abs(GetDistance(emc, cpv, "X"));
640 Float_t deltaZ = TMath::Abs(GetDistance(emc, cpv, "Z"));
35adb638 641 //Info("GetCPVBit"," xdist %f, sigx %f, zdist %f, sigz %f",deltaX, sigX, deltaZ,sigZ ) ;
642 if((deltaX>sigX*(effPur+1))&&(deltaZ>sigZ*(effPur+1)))
bc0c084c 643 return 1;//Neutral
644 else
645 return 0;//Charged
bc0c084c 646}
69183710 647
6ad0bfa0 648//____________________________________________________________________________
fc7e2f43 649Int_t AliPHOSPIDv1::GetPrincipalBit(TString particle, const Double_t* p, Int_t effPur, Float_t e)const
148b2bba 650{
50739f15 651 //Is the particle inside de PCA ellipse?
581354c5 652
e3817e5f 653 particle.ToLower();
654 Int_t prinbit = 0 ;
655 Float_t a = GetEllipseParameter(particle,"a" , e);
656 Float_t b = GetEllipseParameter(particle,"b" , e);
657 Float_t c = GetEllipseParameter(particle,"c" , e);
658 Float_t x0 = GetEllipseParameter(particle,"x0", e);
659 Float_t y0 = GetEllipseParameter(particle,"y0", e);
660
661 Float_t r = TMath::Power((p[0] - x0)/a,2) +
662 TMath::Power((p[1] - y0)/b,2) +
663 c*(p[0] - x0)*(p[1] - y0)/(a*b) ;
50739f15 664 //3 different ellipses defined
e3817e5f 665 if((effPur==2) && (r<1./2.)) prinbit= 1;
666 if((effPur==1) && (r<2. )) prinbit= 1;
667 if((effPur==0) && (r<9./2.)) prinbit= 1;
50739f15 668
581354c5 669 if(r<0)
351dd634 670 AliError("Negative square?") ;
1f0e7ccd 671
672 return prinbit;
148b2bba 673
148b2bba 674}
1f0e7ccd 675//____________________________________________________________________________
fc7e2f43 676Int_t AliPHOSPIDv1::GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const
1f0e7ccd 677{
e3817e5f 678 // Set bit for identified hard photons (E > 30 GeV)
679 // if the second moment M2x is below the boundary
680
681 Float_t e = emc->GetEnergy();
682 if (e < 30.0) return 0;
683 Float_t m2x = emc->GetM2x();
684 Float_t m2xBoundary = GetParameterPhotonBoundary(0) *
685 TMath::Exp(-TMath::Power(e-GetParameterPhotonBoundary(1),2)/2.0/
686 TMath::Power(GetParameterPhotonBoundary(2),2)) +
687 GetParameterPhotonBoundary(3);
351dd634 688 AliDebug(1, Form("GetHardPhotonBit","E=%f, m2x=%f, boundary=%f",
689 e,m2x,m2xBoundary));
e3817e5f 690 if (m2x < m2xBoundary)
691 return 1;// A hard photon
692 else
693 return 0;// Not a hard photon
1f0e7ccd 694}
92f521a9 695
e3817e5f 696//____________________________________________________________________________
fc7e2f43 697Int_t AliPHOSPIDv1::GetHardPi0Bit(AliPHOSEmcRecPoint * emc) const
e3817e5f 698{
699 // Set bit for identified hard pi0 (E > 30 GeV)
700 // if the second moment M2x is above the boundary
701
702 Float_t e = emc->GetEnergy();
703 if (e < 30.0) return 0;
704 Float_t m2x = emc->GetM2x();
705 Float_t m2xBoundary = GetParameterPi0Boundary(0) +
706 e * GetParameterPi0Boundary(1);
351dd634 707 AliDebug(1,Form("E=%f, m2x=%f, boundary=%f",e,m2x,m2xBoundary));
e3817e5f 708 if (m2x > m2xBoundary)
709 return 1;// A hard pi0
bc0c084c 710 else
e3817e5f 711 return 0;// Not a hard pi0
f0a4c9e9 712}
e3817e5f 713
714//____________________________________________________________________________
8d4608b5 715TVector3 AliPHOSPIDv1::GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * )const
88cb7938 716{
717 // Calculates the momentum direction:
718 // 1. if only a EMC RecPoint, direction is given by IP and this RecPoint
719 // 2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints
720 // However because of the poor position resolution of PPSD the direction is always taken as if we were
721 // in case 1.
f0a4c9e9 722
88cb7938 723 TVector3 dir(0,0,0) ;
9688c1dd 724
88cb7938 725 TVector3 emcglobalpos ;
726 TMatrix dummy ;
bf8f1fbd 727
88cb7938 728 emc->GetGlobalPosition(emcglobalpos, dummy) ;
bf8f1fbd 729
fbf811ec 730
88cb7938 731 dir = emcglobalpos ;
88cb7938 732 dir.SetMag(1.) ;
e3817e5f 733
88cb7938 734 //account correction to the position of IP
735 Float_t xo,yo,zo ; //Coordinates of the origin
adcca1e6 736 if(gAlice && gAlice->GetMCApp() && gAlice->Generator())
737 gAlice->Generator()->GetOrigin(xo,yo,zo) ;
738 else{
739 xo=yo=zo=0.;
740 }
88cb7938 741 TVector3 origin(xo,yo,zo);
742 dir = dir - origin ;
e3817e5f 743
88cb7938 744 return dir ;
7b7c1533 745}
746
35adb638 747//________________________________________________________________________
c947e71a 748const Double_t AliPHOSPIDv1::LandauF(Double_t x, Double_t y, Double_t * par)
35adb638 749{
c947e71a 750 //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
751 //this method returns a density probability of this parameter, given by a landau
752 //function whose parameters depend with the energy with a function: a/(x*x)+b/x+b
753
754 Double_t cnt = par[1] / (x*x) + par[2] / x + par[0] ;
35adb638 755 Double_t mean = par[4] / (x*x) + par[5] / x + par[3] ;
756 Double_t sigma = par[7] / (x*x) + par[8] / x + par[6] ;
c947e71a 757
758 if(TMath::Abs(sigma) > 1.e-10){
35adb638 759 TF1 * f = new TF1("landau","landau",0.,100.);
760 f->SetParameters(cnt,mean,sigma);
761 Double_t arg = f->Eval(y) ;
c947e71a 762 // cout<<"LandauF : en "<<x<<" y "<<y<<" c "<< cnt << " mean "<<mean<<" sigma "<<sigma<<endl;
763
35adb638 764 return arg;
765 }
766 else
767 return 0.;
768
769}
770//________________________________________________________________________
c947e71a 771const Double_t AliPHOSPIDv1::LandauPol2(Double_t x, Double_t y, Double_t * par)
35adb638 772{
c947e71a 773
774 //Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
775 //this method returns a density probability of this parameter, given by a landau
776 //function whose parameters depend with the energy like second order polinomial
777
35adb638 778 Double_t cnt = par[2] * (x*x) + par[1] * x + par[0] ;
c947e71a 779 Double_t mean = par[5] * (x*x) + par[4] * x + par[3] ;
780 Double_t sigma = par[8] * (x*x) + par[7] * x + par[6] ;
35adb638 781
c947e71a 782 if(TMath::Abs(sigma) > 1.e-10){
35adb638 783 TF1 * f = new TF1("landau","landau",0.,100.);
784 f->SetParameters(cnt,mean,sigma);
785 Double_t arg = f->Eval(y) ;
c947e71a 786 //cout<<"LandauPol : en "<<x<<" y "<<y<<" c "<< cnt << " mean "<<mean<<" sigma "<<sigma<<endl;
35adb638 787 return arg;
788 }
789 else
790 return 0.;
c947e71a 791
792
35adb638 793}
794// //________________________________________________________________________
795// Double_t AliPHOSPIDv1::ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl)
796// {
797// Double_t cnt = 0.0 ;
798// Double_t mean = 0.0 ;
799// Double_t sigma = 0.0 ;
800// Double_t arg = 0.0 ;
801// if (y < parl[4] / (x*x) + parl[5] / x + parl[3]){
802// cnt = parg[1] / (x*x) + parg[2] / x + parg[0] ;
803// mean = parg[4] / (x*x) + parg[5] / x + parg[3] ;
804// sigma = parg[7] / (x*x) + parg[8] / x + parg[6] ;
805// TF1 * f = new TF1("gaus","gaus",0.,100.);
806// f->SetParameters(cnt,mean,sigma);
807// arg = f->Eval(y) ;
808// }
809// else{
810// cnt = parl[1] / (x*x) + parl[2] / x + parl[0] ;
811// mean = parl[4] / (x*x) + parl[5] / x + parl[3] ;
812// sigma = parl[7] / (x*x) + parl[8] / x + parl[6] ;
813// TF1 * f = new TF1("landau","landau",0.,100.);
814// f->SetParameters(cnt,mean,sigma);
815// arg = f->Eval(y) ;
816// }
817// // Double_t mean = par[3] + par[4] * x + par[5] * x * x ;
818// // Double_t sigma = par[6] + par[7] * x + par[8] * x * x ;
819
820// //Double_t arg = -(y-mean)*(y-mean)/(2*sigma*sigma) ;
821// //return cnt * TMath::Exp(arg) ;
822
823// return arg;
824
825// }
2cc71c1e 826//____________________________________________________________________________
827void AliPHOSPIDv1::MakePID()
828{
829 // construct the PID weight from a Bayesian Method
c947e71a 830
2cc71c1e 831 Int_t index ;
cc1fe362 832 const Int_t kSPECIES = AliESDtrack::kSPECIESN ;
2cc71c1e 833 Int_t nparticles = AliPHOSGetter::Instance()->RecParticles()->GetEntriesFast() ;
c947e71a 834
835 // const Int_t kMAXPARTICLES = 2000 ;
836 // if (nparticles >= kMAXPARTICLES)
837 // Error("MakePID", "Change size of MAXPARTICLES") ;
838 // Double_t stof[kSPECIES][kMAXPARTICLES] ;
839
53ab54c8 840// const Int_t kMAXPARTICLES = 2000 ;
841// if (nparticles >= kMAXPARTICLES)
351dd634 842// AliError("Change size of MAXPARTICLES") ;
53ab54c8 843// Double_t stof[kSPECIES][kMAXPARTICLES] ;
53ab54c8 844
35adb638 845 Double_t * stof[kSPECIES] ;
846 Double_t * sdp [kSPECIES] ;
847 Double_t * scpv[kSPECIES] ;
848
849 //Info("MakePID","Begin MakePID");
850
851 for (Int_t i =0; i< kSPECIES; i++){
852 stof[i] = new Double_t[nparticles] ;
853 sdp [i] = new Double_t[nparticles] ;
854 scpv[i] = new Double_t[nparticles] ;
855 }
856
cc1fe362 857 // make the normalized distribution of pid for this event
858 // w(pid) in the Bayesian formulation
2cc71c1e 859 for(index = 0 ; index < nparticles ; index ++) {
cc1fe362 860
35adb638 861 AliPHOSRecParticle * recpar = AliPHOSGetter::Instance()->RecParticle(index) ;
862 AliPHOSEmcRecPoint * emc = AliPHOSGetter::Instance()->EmcRecPoint(index) ;
863 AliPHOSCpvRecPoint * cpv = AliPHOSGetter::Instance()->CpvRecPoint(index) ;
cc1fe362 864
35adb638 865 Float_t en = emc->GetEnergy();
c947e71a 866
35adb638 867 // Tof
c947e71a 868
869 // Info("MakePID", "TOF");
35adb638 870 Double_t time = recpar->ToF() ;
871 //cout<<">>>>>>>Energy "<<en<<"Time "<<time<<endl;
872 //Electrons initial population to be removed
873 fInitPID[AliESDtrack::kEleCon] = 0. ;
cc1fe362 874
35adb638 875 // now get the signals probability
876 // s(pid) in the Bayesian formulation
cc1fe362 877
c947e71a 878 stof[AliESDtrack::kPhoton][index] = 1.;
879 stof[AliESDtrack::kElectron][index] = 1.;
880 stof[AliESDtrack::kPion][index] = 1.;
881 stof[AliESDtrack::kKaon][index] = 1.;
882 stof[AliESDtrack::kProton][index] = 1.;
883 stof[AliESDtrack::kNeutron][index] = 1.;
884 stof[AliESDtrack::kEleCon][index] = 1.;
885 stof[AliESDtrack::kKaon0][index] = 1.;
886 stof[AliESDtrack::kMuon][index] = 1.;
887
35adb638 888 if(en < 2.) {
c947e71a 889 stof[AliESDtrack::kPhoton][index] = fTFphoton ->Eval(time) ; //gaus distribution
890 stof[AliESDtrack::kPion][index] = fTFpiong ->Eval(time) ; //gaus distribution
891 stof[AliESDtrack::kElectron][index] = stof[AliESDtrack::kPion][index] ;
892
35adb638 893 if(time < fTkaonl[1])
894 stof[AliESDtrack::kKaon][index] = fTFkaong ->Eval(time) ; //gaus distribution
895 else
896 stof[AliESDtrack::kKaon][index] = fTFkaonl ->Eval(time) ; //landau distribution
897 if(time < fThhadronl[1])
898 stof[AliESDtrack::kProton][index] = fTFhhadrong ->Eval(time) ; //gaus distribution
899 else
900 stof[AliESDtrack::kProton][index] = fTFhhadronl ->Eval(time) ; //landau distribution
c947e71a 901
35adb638 902 stof[AliESDtrack::kNeutron][index] = stof[AliESDtrack::kProton][index] ;
903 stof[AliESDtrack::kEleCon][index] = stof[AliESDtrack::kPhoton][index] ;
904 // a conversion electron has the photon ToF
905 stof[AliESDtrack::kKaon0][index] = stof[AliESDtrack::kKaon][index] ;
906 stof[AliESDtrack::kMuon][index] = stof[AliESDtrack::kPhoton][index] ;
cc1fe362 907 }
c947e71a 908
909 // Info("MakePID", "Dispersion");
cc1fe362 910
35adb638 911 // Shower shape: Dispersion
912 Float_t dispersion = emc->GetDispersion();
913 //dispersion is not well defined if the cluster is only in few crystals
cc1fe362 914
c947e71a 915 sdp[AliESDtrack::kPhoton][index] = 1. ;
916 sdp[AliESDtrack::kElectron][index] = 1. ;
917 sdp[AliESDtrack::kPion][index] = 1. ;
918 sdp[AliESDtrack::kKaon][index] = 1. ;
919 sdp[AliESDtrack::kProton][index] = 1. ;
920 sdp[AliESDtrack::kNeutron][index] = 1. ;
921 sdp[AliESDtrack::kEleCon][index] = 1. ;
922 sdp[AliESDtrack::kKaon0][index] = 1. ;
923 sdp[AliESDtrack::kMuon][index] = 1. ;
924
925 if(en > 0.5 && emc->GetMultiplicity() > 3){
35adb638 926 sdp[AliESDtrack::kPhoton][index] = GausF (en , dispersion, fDphoton) ;
927 sdp[AliESDtrack::kElectron][index] = sdp[AliESDtrack::kPhoton][index] ;
928 sdp[AliESDtrack::kPion][index] = LandauF(en , dispersion, fDhadron ) ;
929 sdp[AliESDtrack::kKaon][index] = sdp[AliESDtrack::kPion][index] ;
930 sdp[AliESDtrack::kProton][index] = sdp[AliESDtrack::kPion][index] ;
931 sdp[AliESDtrack::kNeutron][index] = sdp[AliESDtrack::kPion][index] ;
932 sdp[AliESDtrack::kEleCon][index] = sdp[AliESDtrack::kPhoton][index];
933 sdp[AliESDtrack::kKaon0][index] = sdp[AliESDtrack::kPion][index] ;
934 sdp[AliESDtrack::kMuon][index] = fDFmuon ->Eval(dispersion) ; //landau distribution
935 }
cc1fe362 936
c947e71a 937// Info("MakePID","multiplicity %d, dispersion %f", emc->GetMultiplicity(), dispersion);
938// Info("MakePID","ss: photon %f, hadron %f ", sdp[AliESDtrack::kPhoton][index], sdp[AliESDtrack::kPion][index]);
adcca1e6 939
c947e71a 940// cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<", dispersion "<< dispersion<<endl ;
941// cout<<"<<<<<ss: photon "<<sdp[AliESDtrack::kPhoton][index]<<", hadron "<<sdp[AliESDtrack::kPion][index]<<endl;
942
35adb638 943 // CPV-EMC Distance
c947e71a 944 // Info("MakePID", "Distance");
945 // Float_t distance = GetDistance(emc, cpv, "R") ;
946 Float_t x = TMath::Abs(GetDistance(emc, cpv, "X")) ;
947 Float_t z = GetDistance(emc, cpv, "Z") ;
35adb638 948 // Info("MakePID", "Distance %f", distance);
c947e71a 949 Double_t pcpv = 0 ;
950 Double_t pcpvneutral = 0. ;
951 Double_t elprobx = GausF(en , x, fXelectron) ;
952 Double_t elprobz = GausF(en , z, fZelectron) ;
953 Double_t chprobx = GausF(en , x, fXcharged) ;
954 Double_t chprobz = GausF(en , z, fZcharged) ;
955 Double_t pcpvelectron = elprobx * elprobz;
956 Double_t pcpvcharged = chprobx * chprobz;
957
958// cout<<">>>>electron : x "<<x<<" xprob "<<elprobx<<" z "<<z<<" zprob "<<elprobz<<endl;
959// cout<<">>>>hadron : x "<<x<<" xprob "<<chprobx<<" z "<<z<<" zprob "<<chprobz<<endl;
960// cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl;
961
35adb638 962 if(pcpvelectron >= pcpvcharged)
963 pcpv = pcpvelectron ;
964 else
965 pcpv = pcpvcharged ;
966
c947e71a 967 if(pcpv < 1e-7)
35adb638 968 {
969 pcpvneutral = 1. ;
970 pcpvcharged = 0. ;
971 pcpvelectron = 0. ;
972 }
c947e71a 973 // else
974 // cout<<">>>>>>>>>>>CHARGED>>>>>>>>>>>"<<endl;
35adb638 975
976 scpv[AliESDtrack::kPion][index] = pcpvcharged ;
977 scpv[AliESDtrack::kKaon][index] = pcpvcharged ;
978 scpv[AliESDtrack::kProton][index] = pcpvcharged ;
979 scpv[AliESDtrack::kPhoton][index] = pcpvneutral ;
980 scpv[AliESDtrack::kElectron][index] = pcpvelectron ;
981 scpv[AliESDtrack::kNeutron][index] = pcpvneutral ;
982 scpv[AliESDtrack::kEleCon][index] = pcpvelectron ;
983 scpv[AliESDtrack::kKaon0][index] = pcpvneutral ;
984 scpv[AliESDtrack::kMuon][index] = pcpvelectron ;
985
986 // Info("MakePID", "CPV passed");
c947e71a 987
988 //Pi0
989 stof[AliESDtrack::kPi0][index] = 0. ;
990 scpv[AliESDtrack::kPi0][index] = 0. ;
991 sdp [AliESDtrack::kPi0][index] = 0. ;
992 fInitPID[AliESDtrack::kPi0] = 0. ;
993
35adb638 994 if(en > 30.){
995 // pi0 are detected via decay photon
996 stof[AliESDtrack::kPi0][index] = fTFphoton ->Eval(time) ;
997 scpv[AliESDtrack::kPi0][index] = pcpvneutral ;
c947e71a 998 sdp [AliESDtrack::kPi0][index] = 1. ;
999 if(emc->GetMultiplicity() > 3)
35adb638 1000 sdp [AliESDtrack::kPi0][index] = GausPol2(en , dispersion, fDpi0) ;
35adb638 1001 }
1002
1003 if(en > 0.5){
1004 //Muons deposit few energy
c947e71a 1005 scpv[AliESDtrack::kMuon][index] = 0 ;
1006 stof[AliESDtrack::kMuon][index] = 0 ;
1007 sdp [AliESDtrack::kMuon][index] = 0 ;
1008 }
1009
1010 if(en > 0.5){
1011 cout<<"######################################################"<<endl;
1012 //cout<<"MakePID: energy "<<en<<", tof "<<time<<", distance "<<distance<<", dispersion "<<dispersion<<endl ;
1013 cout<<"MakePID: energy "<<en<<", tof "<<time<<", dispersion "<<dispersion<<", x "<<x<<", z "<<z<<endl ;
1014 cout<<">>>>>multiplicity "<<emc->GetMultiplicity()<<endl;
1015 cout<<">>>>electron : xprob "<<elprobx<<" zprob "<<elprobz<<endl;
1016 cout<<">>>>hadron : xprob "<<chprobx<<" zprob "<<chprobz<<endl;
1017 cout<<">>>>electron : px*pz "<<pcpvelectron <<" hadron: px*pz "<<pcpvcharged<<endl;
1018
1019
1020 cout<<"Photon , pid "<< fInitPID[AliESDtrack::kPhoton]<<" tof "<<stof[AliESDtrack::kPhoton][index]
1021 <<", cpv "<<scpv[AliESDtrack::kPhoton][index]<<", ss "<<sdp[AliESDtrack::kPhoton][index]<<endl;
1022 cout<<"EleCon , pid "<< fInitPID[AliESDtrack::kEleCon]<<", tof "<<stof[AliESDtrack::kEleCon][index]
1023 <<", cpv "<<scpv[AliESDtrack::kEleCon][index]<<" ss "<<sdp[AliESDtrack::kEleCon][index]<<endl;
1024 cout<<"Electron , pid "<< fInitPID[AliESDtrack::kElectron]<<", tof "<<stof[AliESDtrack::kElectron][index]
1025 <<", cpv "<<scpv[AliESDtrack::kElectron][index]<<" ss "<<sdp[AliESDtrack::kElectron][index]<<endl;
1026 cout<<"Muon , pid "<< fInitPID[AliESDtrack::kMuon]<<", tof "<<stof[AliESDtrack::kMuon][index]
1027 <<", cpv "<<scpv[AliESDtrack::kMuon][index]<<" ss "<<sdp[AliESDtrack::kMuon][index]<<endl;
1028 cout<<"Pi0 , pid "<< fInitPID[AliESDtrack::kPi0]<<", tof "<<stof[AliESDtrack::kPi0][index]
1029 <<", cpv "<<scpv[AliESDtrack::kPi0][index]<<" ss "<<sdp[AliESDtrack::kPi0][index]<<endl;
1030 cout<<"Pion , pid "<< fInitPID[AliESDtrack::kPion]<<", tof "<<stof[AliESDtrack::kPion][index]
1031 <<", cpv "<<scpv[AliESDtrack::kPion][index]<<" ss "<<sdp[AliESDtrack::kPion][index]<<endl;
1032 cout<<"Kaon0 , pid "<< fInitPID[AliESDtrack::kKaon0]<<", tof "<<stof[AliESDtrack::kKaon0][index]
1033 <<", cpv "<<scpv[AliESDtrack::kKaon0][index]<<" ss "<<sdp[AliESDtrack::kKaon0][index]<<endl;
1034 cout<<"Kaon , pid "<< fInitPID[AliESDtrack::kKaon]<<", tof "<<stof[AliESDtrack::kKaon][index]
1035 <<", cpv "<<scpv[AliESDtrack::kKaon][index]<<" ss "<<sdp[AliESDtrack::kKaon][index]<<endl;
1036 cout<<"Neutron , pid "<< fInitPID[AliESDtrack::kNeutron]<<", tof "<<stof[AliESDtrack::kNeutron][index]
1037 <<", cpv "<<scpv[AliESDtrack::kNeutron][index]<<" ss "<<sdp[AliESDtrack::kNeutron][index]<<endl;
1038 cout<<"Proton , pid "<< fInitPID[AliESDtrack::kProton]<<", tof "<<stof[AliESDtrack::kProton][index]
1039 <<", cpv "<<scpv[AliESDtrack::kProton][index]<<" ss "<<sdp[AliESDtrack::kProton][index]<<endl;
1040 cout<<"######################################################"<<endl;
35adb638 1041 }
cc1fe362 1042 }
35adb638 1043
1044 //for (index = 0 ; index < kSPECIES ; index++)
1045 // pid[index] /= nparticles ;
1046
1047 // Info("MakePID", "Total Probability calculation");
1048
cc1fe362 1049 for(index = 0 ; index < nparticles ; index ++) {
1050 // calculates the Bayesian weight
1051 Int_t jndex ;
1052 Double_t wn = 0.0 ;
1053 for (jndex = 0 ; jndex < kSPECIES ; jndex++)
35adb638 1054 //wn += stof[jndex][index] * pid[jndex] ;
1055 wn += stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] ;
1056 //cout<<"*************wn "<<wn<<endl;
cc1fe362 1057 AliPHOSRecParticle * recpar = AliPHOSGetter::Instance()->RecParticle(index) ;
e74ea0e9 1058 if (TMath::Abs(wn)>0)
1059 for (jndex = 0 ; jndex < kSPECIES ; jndex++) {
35adb638 1060 //cout<<"jndex "<<jndex<<" wn "<<wn<<" SetPID * wn"
1061 //<<stof[jndex][index] * sdp[jndex][index] * pid[jndex] << endl;
1062 //cout<<" tof "<<stof[jndex][index] << " disp " <<sdp[jndex][index] << " pid "<< fInitPID[jndex] << endl;
1063// cout<<"Particle "<<jndex<<" final prob * wn "
1064// <<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] <<" wn "<< wn<<endl;
1065 recpar->SetPID(jndex, stof[jndex][index] * sdp[jndex][index] *
1066 scpv[jndex][index] * fInitPID[jndex] / wn) ;
1067// cout<<"final prob "<<stof[jndex][index] * sdp[jndex][index] * scpv[jndex][index] * fInitPID[jndex] / wn<<endl;
1068 //recpar->SetPID(jndex, stof[jndex][index] * fInitPID[jndex] / wn) ;
1069 //cout<<"After SetPID"<<endl;
1070 //recpar->Print();
e74ea0e9 1071 }
2cc71c1e 1072 }
35adb638 1073 // Info("MakePID", "Delete");
1074
1075 // for (Int_t i =0; i< kSPECIES; i++){
1076 // delete [] stof[i];
1077 // cout<<i<<endl;
1078 // delete [] sdp[i];
1079 // cout<<i<<endl;
1080 // delete [] scpv[i];
1081 // cout<<i<<endl;
1082 // }
1083
1084 // Info("MakePID","End MakePID");
2cc71c1e 1085}
1086
7acf6008 1087//____________________________________________________________________________
e3817e5f 1088void AliPHOSPIDv1::MakeRecParticles()
1089{
b2a60966 1090 // Makes a RecParticle out of a TrackSegment
148b2bba 1091
88cb7938 1092 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
fbf811ec 1093 TObjArray * emcRecPoints = gime->EmcRecPoints() ;
1094 TObjArray * cpvRecPoints = gime->CpvRecPoints() ;
1095 TClonesArray * trackSegments = gime->TrackSegments() ;
148b2bba 1096 if ( !emcRecPoints || !cpvRecPoints || !trackSegments ) {
351dd634 1097 AliFatal("RecPoints or TrackSegments not found !") ;
148b2bba 1098 }
fbf811ec 1099 TClonesArray * recParticles = gime->RecParticles() ;
01a599c9 1100 recParticles->Clear();
148b2bba 1101
7b7c1533 1102 TIter next(trackSegments) ;
7acf6008 1103 AliPHOSTrackSegment * ts ;
6ad0bfa0 1104 Int_t index = 0 ;
09fc14a0 1105 AliPHOSRecParticle * rp ;
7acf6008 1106 while ( (ts = (AliPHOSTrackSegment *)next()) ) {
fad3e5b9 1107
7b7c1533 1108 new( (*recParticles)[index] ) AliPHOSRecParticle() ;
1109 rp = (AliPHOSRecParticle *)recParticles->At(index) ;
f0a4c9e9 1110 rp->SetTrackSegment(index) ;
9688c1dd 1111 rp->SetIndexInList(index) ;
148b2bba 1112
7acf6008 1113 AliPHOSEmcRecPoint * emc = 0 ;
1114 if(ts->GetEmcIndex()>=0)
7b7c1533 1115 emc = (AliPHOSEmcRecPoint *) emcRecPoints->At(ts->GetEmcIndex()) ;
fad3e5b9 1116
8d4608b5 1117 AliPHOSCpvRecPoint * cpv = 0 ;
7acf6008 1118 if(ts->GetCpvIndex()>=0)
8d4608b5 1119 cpv = (AliPHOSCpvRecPoint *) cpvRecPoints->At(ts->GetCpvIndex()) ;
fad3e5b9 1120
bd76890a 1121 Int_t track = 0 ;
1122 track = ts->GetTrackIndex() ;
1123
148b2bba 1124 // Now set type (reconstructed) of the particle
1125
1126 // Choose the cluster energy range
9fa5f1d0 1127
fbf811ec 1128 if (!emc) {
351dd634 1129 AliFatal(Form("-> emc(%d) = %d", ts->GetEmcIndex(), emc )) ;
fbf811ec 1130 }
50739f15 1131
e3817e5f 1132 Float_t e = emc->GetEnergy() ;
bc0c084c 1133
6f969528 1134 Float_t lambda[2] ;
1135 emc->GetElipsAxis(lambda) ;
50739f15 1136
1137 if((lambda[0]>0.01) && (lambda[1]>0.01)){
1138 // Looking PCA. Define and calculate the data (X),
bc0c084c 1139 // introduce in the function X2P that gives the components (P).
1140
c947e71a 1141 Float_t spher = 0. ;
1142 Float_t emaxdtotal = 0. ;
50739f15 1143
bc0c084c 1144 if((lambda[0]+lambda[1])!=0)
c947e71a 1145 spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]);
50739f15 1146
c947e71a 1147 emaxdtotal=emc->GetMaximalEnergy()/emc->GetEnergy();
50739f15 1148
1149 fX[0] = lambda[0] ;
1150 fX[1] = lambda[1] ;
1151 fX[2] = emc->GetDispersion() ;
c947e71a 1152 fX[3] = spher ;
50739f15 1153 fX[4] = emc->GetMultiplicity() ;
c947e71a 1154 fX[5] = emaxdtotal ;
50739f15 1155 fX[6] = emc->GetCoreEnergy() ;
1156
e3817e5f 1157 fPrincipalPhoton->X2P(fX,fPPhoton);
1158 fPrincipalPi0 ->X2P(fX,fPPi0);
1f0e7ccd 1159
50739f15 1160 }
1161 else{
e3817e5f 1162 fPPhoton[0]=-100.0; //We do not accept clusters with
1163 fPPhoton[1]=-100.0; //one cell as a photon-like
1164 fPPi0[0] =-100.0;
1165 fPPi0[1] =-100.0;
50739f15 1166 }
1167
2cc71c1e 1168 Float_t time = emc->GetTime() ;
1169 rp->SetTof(time) ;
9fa5f1d0 1170
bc0c084c 1171 // Loop of Efficiency-Purity (the 3 points of purity or efficiency
1172 // are taken into account to set the particle identification)
e3817e5f 1173 for(Int_t effPur = 0; effPur < 3 ; effPur++){
50739f15 1174
bc0c084c 1175 // Looking at the CPV detector. If RCPV greater than CpvEmcDistance,
1176 // 1st,2nd or 3rd bit (depending on the efficiency-purity point )
1177 // is set to 1
35adb638 1178 if(GetCPVBit(emc, cpv, effPur,e) == 1 ){
e3817e5f 1179 rp->SetPIDBit(effPur) ;
35adb638 1180 //cout<<"CPV bit "<<effPur<<endl;
1181 }
50739f15 1182 // Looking the TOF. If TOF smaller than gate, 4th, 5th or 6th
1183 // bit (depending on the efficiency-purity point )is set to 1
2cc71c1e 1184 if(time< (*fParameters)(3,effPur))
e3817e5f 1185 rp->SetPIDBit(effPur+3) ;
2cc71c1e 1186
e3817e5f 1187 //Photon PCA
50739f15 1188 //If we are inside the ellipse, 7th, 8th or 9th
1189 // bit (depending on the efficiency-purity point )is set to 1
e3817e5f 1190 if(GetPrincipalBit("photon",fPPhoton,effPur,e) == 1)
1191 rp->SetPIDBit(effPur+6) ;
1f0e7ccd 1192
e3817e5f 1193 //Pi0 PCA
1f0e7ccd 1194 //If we are inside the ellipse, 10th, 11th or 12th
1195 // bit (depending on the efficiency-purity point )is set to 1
e3817e5f 1196 if(GetPrincipalBit("pi0" ,fPPi0 ,effPur,e) == 1)
1197 rp->SetPIDBit(effPur+9) ;
f0a4c9e9 1198 }
e3817e5f 1199 if(GetHardPhotonBit(emc))
1200 rp->SetPIDBit(12) ;
1201 if(GetHardPi0Bit (emc))
1202 rp->SetPIDBit(13) ;
1f0e7ccd 1203
bd76890a 1204 if(track >= 0)
1205 rp->SetPIDBit(14) ;
1206
9fa5f1d0 1207 //Set momentum, energy and other parameters
50739f15 1208 Float_t encal = GetCalibratedEnergy(e);
9fa5f1d0 1209 TVector3 dir = GetMomentumDirection(emc,cpv) ;
1210 dir.SetMag(encal) ;
1211 rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),encal) ;
1212 rp->SetCalcMass(0);
e0ed2e49 1213 rp->Name(); //If photon sets the particle pdg name to gamma
e747b8da 1214 rp->SetProductionVertex(0,0,0,0);
1215 rp->SetFirstMother(-1);
1216 rp->SetLastMother(-1);
1217 rp->SetFirstDaughter(-1);
1218 rp->SetLastDaughter(-1);
1219 rp->SetPolarisation(0,0,0);
d956e9b7 1220 //Set the position in global coordinate system from the RecPoint
1221 AliPHOSGeometry * geom = gime->PHOSGeometry() ;
1222 AliPHOSTrackSegment * ts = gime->TrackSegment(rp->GetPHOSTSIndex()) ;
1223 AliPHOSEmcRecPoint * erp = gime->EmcRecPoint(ts->GetEmcIndex()) ;
1224 TVector3 pos ;
1225 geom->GetGlobal(erp, pos) ;
1226 rp->SetPos(pos);
6ad0bfa0 1227 index++ ;
1228 }
6ad0bfa0 1229}
e3817e5f 1230
09fc14a0 1231//____________________________________________________________________________
88cb7938 1232void AliPHOSPIDv1::Print() const
09fc14a0 1233{
b2a60966 1234 // Print the parameters used for the particle type identification
bc0c084c 1235
351dd634 1236 AliInfo("=============== AliPHOSPIDv1 ================") ;
88cb7938 1237 printf("Making PID\n") ;
1238 printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileNamePrincipalPhoton.Data() ) ;
1239 printf(" Name of parameters file %s\n", fFileNameParameters.Data() ) ;
1240 printf(" Matrix of Parameters: 14x4\n") ;
1241 printf(" Energy Calibration 1x3 [3 parametres to calibrate energy: A + B* E + C * E^2]\n") ;
1242 printf(" RCPV 2x3 rows x and z, columns function cut parameters\n") ;
1243 printf(" TOF 1x3 [High Eff-Low Pur,Medium Eff-Pur, Low Eff-High Pur]\n") ;
1244 printf(" PCA 5x4 [5 ellipse parametres and 4 parametres to calculate them: A/Sqrt(E) + B* E + C * E^2 + D]\n") ;
1245 Printf(" Pi0 PCA 5x3 [5 ellipse parametres and 3 parametres to calculate them: A + B* E + C * E^2]\n") ;
50739f15 1246 fParameters->Print() ;
09fc14a0 1247}
1248
a496c46c 1249
69183710 1250
7acf6008 1251//____________________________________________________________________________
a4e98857 1252void AliPHOSPIDv1::PrintRecParticles(Option_t * option)
1253{
dd5c4038 1254 // Print table of reconstructed particles
1255
88cb7938 1256 AliPHOSGetter *gime = AliPHOSGetter::Instance() ;
bf8f1fbd 1257
88cb7938 1258 TClonesArray * recParticles = gime->RecParticles() ;
21cd0c07 1259
1260 TString message ;
3bf72d32 1261 message = "\nevent " ;
1262 message += gAlice->GetEvNumber() ;
1263 message += " found " ;
1264 message += recParticles->GetEntriesFast();
1265 message += " RecParticles\n" ;
1266
7acf6008 1267 if(strstr(option,"all")) { // printing found TS
3bf72d32 1268 message += "\n PARTICLE Index \n" ;
7acf6008 1269
1270 Int_t index ;
7b7c1533 1271 for (index = 0 ; index < recParticles->GetEntries() ; index++) {
21cd0c07 1272 AliPHOSRecParticle * rp = (AliPHOSRecParticle * ) recParticles->At(index) ;
3bf72d32 1273 message += "\n" ;
1274 message += rp->Name().Data() ;
1275 message += " " ;
1276 message += rp->GetIndexInList() ;
1277 message += " " ;
1278 message += rp->GetType() ;
7acf6008 1279 }
3bf72d32 1280 }
351dd634 1281 AliInfo(message.Data() ) ;
69183710 1282}
88cb7938 1283
1284//____________________________________________________________________________
1285void AliPHOSPIDv1::SetParameters()
1286{
1287 // PCA : To do the Principal Components Analysis it is necessary
1288 // the Principal file, which is opened here
1289 fX = new double[7]; // Data for the PCA
1290 fPPhoton = new double[7]; // Eigenvalues of the PCA
1291 fPPi0 = new double[7]; // Eigenvalues of the Pi0 PCA
1292
1293 // Read photon principals from the photon file
1294
1295 fFileNamePrincipalPhoton = "$ALICE_ROOT/PHOS/PCA8pa15_0.5-100.root" ;
1296 TFile f( fFileNamePrincipalPhoton.Data(), "read" ) ;
1297 fPrincipalPhoton = dynamic_cast<TPrincipal*> (f.Get("principal")) ;
1298 f.Close() ;
1299
1300 // Read pi0 principals from the pi0 file
1301
1302 fFileNamePrincipalPi0 = "$ALICE_ROOT/PHOS/PCA_pi0_40-120.root" ;
1303 TFile fPi0( fFileNamePrincipalPi0.Data(), "read" ) ;
1304 fPrincipalPi0 = dynamic_cast<TPrincipal*> (fPi0.Get("principal")) ;
1305 fPi0.Close() ;
1306
1307 // Open parameters file and initialization of the Parameters matrix.
1308 // In the File Parameters.dat are all the parameters. These are introduced
1309 // in a matrix of 16x4
1310 //
1311 // All the parameters defined in this file are, in order of row:
1312 // line 0 : calibration
1313 // lines 1,2 : CPV rectangular cat for X and Z
1314 // line 3 : TOF cut
1315 // lines 4-8 : parameters to calculate photon PCA ellipse
1316 // lines 9-13: parameters to calculate pi0 PCA ellipse
1317 // lines 14-15: parameters to calculate border for high-pt photons and pi0
1318
1319 fFileNameParameters = gSystem->ExpandPathName("$ALICE_ROOT/PHOS/Parameters.dat");
1320 fParameters = new TMatrix(16,4) ;
c947e71a 1321 const Int_t kMaxLeng=255;
1322 char string[kMaxLeng];
88cb7938 1323
1324 // Open a text file with PID parameters
1325 FILE *fd = fopen(fFileNameParameters.Data(),"r");
1326 if (!fd)
351dd634 1327 AliFatal(Form("File %s with a PID parameters cannot be opened\n",
1328 fFileNameParameters.Data()));
88cb7938 1329
1330 Int_t i=0;
1331 // Read parameter file line-by-line and skip empty line and comments
c947e71a 1332 while (fgets(string,kMaxLeng,fd) != NULL) {
88cb7938 1333 if (string[0] == '\n' ) continue;
1334 if (string[0] == '!' ) continue;
1335 sscanf(string, "%f %f %f %f",
1336 &(*fParameters)(i,0), &(*fParameters)(i,1),
1337 &(*fParameters)(i,2), &(*fParameters)(i,3));
1338 i++;
351dd634 1339 AliDebug(1, Form("SetParameters", "line %d: %s",i,string));
88cb7938 1340 }
1341 fclose(fd);
1342}
1343
1344//____________________________________________________________________________
1345void AliPHOSPIDv1::SetParameterCalibration(Int_t i,Float_t param)
1346{
1347 // Set parameter "Calibration" i to a value param
351dd634 1348 if(i>2 || i<0) {
1349 AliError(Form("Invalid parameter number: %d",i));
1350 } else
88cb7938 1351 (*fParameters)(0,i) = param ;
1352}
1353
1354//____________________________________________________________________________
1355void AliPHOSPIDv1::SetParameterCpv2Emc(Int_t i, TString axis, Float_t cut)
1356{
1357 // Set the parameters to calculate Cpv-to-Emc Distance Cut depending on
1358 // Purity-Efficiency point i
1359
351dd634 1360 if(i>2 || i<0) {
1361 AliError(Form("Invalid parameter number: %d",i));
1362 } else {
88cb7938 1363 axis.ToLower();
1364 if (axis == "x") (*fParameters)(1,i) = cut;
1365 else if (axis == "z") (*fParameters)(2,i) = cut;
351dd634 1366 else {
1367 AliError(Form("Invalid axis name: %s",axis.Data()));
1368 }
88cb7938 1369 }
1370}
1371
1372//____________________________________________________________________________
1373void AliPHOSPIDv1::SetParameterPhotonBoundary(Int_t i,Float_t param)
1374{
1375 // Set parameter "Hard photon boundary" i to a value param
351dd634 1376 if(i>4 || i<0) {
1377 AliError(Form("Invalid parameter number: %d",i));
1378 } else
88cb7938 1379 (*fParameters)(14,i) = param ;
1380}
1381
1382//____________________________________________________________________________
1383void AliPHOSPIDv1::SetParameterPi0Boundary(Int_t i,Float_t param)
1384{
1385 // Set parameter "Hard pi0 boundary" i to a value param
351dd634 1386 if(i>1 || i<0) {
1387 AliError(Form("Invalid parameter number: %d",i));
1388 } else
88cb7938 1389 (*fParameters)(15,i) = param ;
1390}
1391
1392//_____________________________________________________________________________
1393void AliPHOSPIDv1::SetParameterTimeGate(Int_t i, Float_t gate)
1394{
1395 // Set the parameter TimeGate depending on Purity-Efficiency point i
351dd634 1396 if (i>2 || i<0) {
1397 AliError(Form("Invalid Efficiency-Purity choice %d",i));
1398 } else
88cb7938 1399 (*fParameters)(3,i)= gate ;
1400}
1401
1402//_____________________________________________________________________________
1403void AliPHOSPIDv1::SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t par)
1404{
1405 // Set the parameter "i" that is needed to calculate the ellipse
1406 // parameter "param" for a particle "particle"
1407
1408 particle.ToLower();
1409 param. ToLower();
1410 Int_t p= -1;
1411 Int_t offset=0;
1412
1413 if (particle == "photon") offset=0;
1414 else if (particle == "pi0") offset=5;
1415 else
351dd634 1416 AliError(Form("Wrong particle name: %s (choose from pi0/photon)\n",
1417 particle.Data()));
88cb7938 1418
1419 if (param.Contains("a")) p=4+offset;
1420 else if(param.Contains("b")) p=5+offset;
1421 else if(param.Contains("c")) p=6+offset;
1422 else if(param.Contains("x0"))p=7+offset;
1423 else if(param.Contains("y0"))p=8+offset;
351dd634 1424 if((i>4)||(i<0)) {
1425 AliError(Form("No parameter with index %d", i)) ;
1426 } else if(p==-1) {
1427 AliError(Form("No parameter with name %s", param.Data() )) ;
1428 } else
88cb7938 1429 (*fParameters)(p,i) = par ;
1430}
1431
1432//____________________________________________________________________________
1433void AliPHOSPIDv1::Unload()
1434{
c947e71a 1435 //Unloads RecPoints, Tracks and RecParticles
88cb7938 1436 AliPHOSGetter * gime = AliPHOSGetter::Instance() ;
1437 gime->PhosLoader()->UnloadRecPoints() ;
1438 gime->PhosLoader()->UnloadTracks() ;
1439 gime->PhosLoader()->UnloadRecParticles() ;
1440}
1441
1442//____________________________________________________________________________
90cceaf6 1443void AliPHOSPIDv1::WriteRecParticles()
88cb7938 1444{
c947e71a 1445 //It writes reconstructed particles and pid to file
1446
88cb7938 1447 AliPHOSGetter *gime = AliPHOSGetter::Instance() ;
1448
1449 TClonesArray * recParticles = gime->RecParticles() ;
1450 recParticles->Expand(recParticles->GetEntriesFast() ) ;
adcca1e6 1451 if(fWrite){
1452 TTree * treeP = gime->TreeP();
1453
1454 //First rp
1455 Int_t bufferSize = 32000 ;
1456 TBranch * rpBranch = treeP->Branch("PHOSRP",&recParticles,bufferSize);
1457 rpBranch->SetTitle(BranchName());
1458
1459 rpBranch->Fill() ;
1460
1461 gime->WriteRecParticles("OVERWRITE");
1462 gime->WritePID("OVERWRITE");
1463 }
88cb7938 1464}
1465
35adb638 1466
1467//_______________________________________________________________________
1468void AliPHOSPIDv1::SetInitPID(const Double_t *p) {
1469 // Sets values for the initial population of each particle type
1470 for (Int_t i=0; i<AliESDtrack::kSPECIESN; i++) fInitPID[i] = p[i];
1471}
1472//_______________________________________________________________________
1473void AliPHOSPIDv1::GetInitPID(Double_t *p) const {
1474 // Gets values for the initial population of each particle type
1475 for (Int_t i=0; i<AliESDtrack::kSPECIESN; i++) p[i] = fInitPID[i];
1476}