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Still fixing AliITSsimulationSSD.h for missing AliITSTableSSD's.
[u/mrichter/AliRoot.git] / PHOS / AliPHOSAnalyze.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//_________________________________________________________________________
efad3788 19// Algorythm class to analyze PHOS events. In this class we demostrate,
20// how to handle reconstructed objects with AliPHSOIndexToObject.
21// As an example we propose sulotions for four most frequently used tasks:
22// DrawRecon(...) - to draw reconstructed objects in the PHOS plane,
23// very usefull in the debuging
24// InvarianMass(...) - to calculate "REAL" and "MIXED" photon pairs
25// invariant mass distributions
26// EnergyResoluition(...) -\ Energy and position resolutions of the
27// PositionResolution(...)-/ reconstructed photons
28// Contamination(...) - calculates contamination of the photon spectrum and
29// pobability of reconstruction of several primaries as
30// kGAMMA,kELECTRON etc.
31//
32// User Case:
e4761a49 33// root [0] AliPHOSAnalyze * a = new AliPHOSAnalyze("galice.root")
efad3788 34// // set the file you want to analyse
35// root [1] a->DrawRecon(1,3)
36// // plot RecObjects, made in event 1, PHOS module 3
37// root [2] a->DrawRecon(1,3,"PHOSRP","another PID")
38// // plot RecObjets made in the event 1, PHOS module 3,
39// // produced in the another reconstruction pass,
40// // which produced PHOS RecParticles ("PHOSRP") with
41// // title "another PID".
42// root [3] a->InvariantMass()
43// // Calculates "REAL" and "MIXED" invariant mass
44// // distributions of kGAMMA and (kGAMMA+kNEUTRALEM)
45// // and APPENDS this to the file "invmass.root"
46// root [4] a->PositionResolution()
47// // calculates two dimentional histos: energy of the primary
48// // photon vs distance betwin incedence point and reconstructed
49// // poisition. One can analyse the produced file position.root
50// // with macro PhotonPosition.C
51// root [5] a->EnergyResolution()
52// // calculates two dimentional histos: energy of the primary
53// // photon vs energy of the reconstructed particle. One can
54// // analyse the produced file energy.root
55// // with macro PhotonEnergy.C
56// root [6] a->Contamination()
57// // fills spectra of primary photons and several kinds of
58// // reconstructed particles, so that analyzing them one can
59// // estimate conatmination, efficiency of registration etc.
a3dfe79c 60//*--
efad3788 61//*-- Author: Dmitri Peressounko (SUBATECH & RRC Kurchatov Institute)
6ad0bfa0 62//////////////////////////////////////////////////////////////////////////////
63
baef0810 64
6ad0bfa0 65// --- ROOT system ---
66
92862013 67#include "TFile.h"
68#include "TH1.h"
6ad0bfa0 69#include "TH2.h"
83448140 70#include "TH2.h"
6ad0bfa0 71#include "TParticle.h"
72#include "TClonesArray.h"
73#include "TTree.h"
74#include "TMath.h"
a88eea6f 75#include "TROOT.h"
76#include "TFolder.h"
6ad0bfa0 77
78// --- Standard library ---
79
efad3788 80#include <iomanip.h>
92862013 81
6ad0bfa0 82// --- AliRoot header files ---
83
84#include "AliRun.h"
83448140 85#include "AliPHOSv1.h"
6ad0bfa0 86#include "AliPHOSAnalyze.h"
6ad0bfa0 87#include "AliPHOSDigit.h"
efad3788 88#include "AliPHOSSDigitizer.h"
6ad0bfa0 89#include "AliPHOSTrackSegment.h"
90#include "AliPHOSRecParticle.h"
867ede0e 91#include "AliPHOSCpvRecPoint.h"
7b7c1533 92#include "AliPHOSGetter.h"
6ad0bfa0 93
baef0810 94
6ad0bfa0 95ClassImp(AliPHOSAnalyze)
96
6ad0bfa0 97//____________________________________________________________________________
98 AliPHOSAnalyze::AliPHOSAnalyze()
99{
b2a60966 100 // default ctor (useless)
efad3788 101 fCorrection = 1.2 ; //Value calculated for default parameters of reconstruction
6ad0bfa0 102}
103
104//____________________________________________________________________________
efad3788 105AliPHOSAnalyze::AliPHOSAnalyze(Text_t * fileName)
6ad0bfa0 106{
83974468 107 // ctor: analyze events from root file "name"
efad3788 108 ffileName = fileName ;
7b7c1533 109 fCorrection = 1.05 ; //Value calculated for default parameters of reconstruction
6ad0bfa0 110}
111
88714635 112//____________________________________________________________________________
113AliPHOSAnalyze::AliPHOSAnalyze(const AliPHOSAnalyze & ana)
114{
115 // copy ctor
116 ( (AliPHOSAnalyze &)ana ).Copy(*this) ;
117}
118
6ad0bfa0 119//____________________________________________________________________________
120AliPHOSAnalyze::~AliPHOSAnalyze()
121{
122 // dtor
123
6ad0bfa0 124}
6ad0bfa0 125//____________________________________________________________________________
efad3788 126void AliPHOSAnalyze::DrawRecon(Int_t Nevent,Int_t Nmod,const char * branchName,const char* branchTitle){
127 //Draws pimary particles and reconstructed
128 //digits, RecPoints, RecPartices etc
129 //for event Nevent in the module Nmod.
9688c1dd 130
7b7c1533 131 //========== Create ObjectGetter
132 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),branchTitle) ;
1c5cf796 133 if(Nevent >= gAlice->TreeE()->GetEntries() ) {
134 cout << "There is no event " << Nevent << ", only " << gAlice->TreeE()->GetEntries() << "events available " <<endl ;
135 return ;
136 }
7b7c1533 137 const AliPHOSGeometry * phosgeom = gime->PHOSGeometry() ;
138 gime->Event(Nevent);
9688c1dd 139
140 Int_t nx = phosgeom->GetNPhi() ;
141 Int_t nz = phosgeom->GetNZ() ;
142 Float_t * cri= phosgeom->GetEMCAGeometry()->GetCrystalHalfSize() ;
143 Float_t x = nx*cri[0] ;
144 Float_t z = nz*cri[2] ;
145 Int_t nxCPV = (Int_t) (nx*phosgeom->GetPadSizePhi()/(2.*cri[0])) ;
146 Int_t nzCPV = (Int_t) (nz*phosgeom->GetPadSizeZ()/(2.*cri[2])) ;
147
1c5cf796 148 TH2F * emcDigits = (TH2F*) gROOT->FindObject("emcDigits") ;
149 if(emcDigits)
150 emcDigits->Delete() ;
151 emcDigits = new TH2F("emcDigits","EMC digits", nx,-x,x,nz,-z,z);
152 TH2F * emcSdigits =(TH2F*) gROOT->FindObject("emcSdigits") ;
153 if(emcSdigits)
154 emcSdigits->Delete() ;
155 emcSdigits = new TH2F("emcSdigits","EMC sdigits", nx,-x,x,nz,-z,z);
156 TH2F * emcRecPoints = (TH2F*)gROOT->FindObject("emcRecPoints") ;
157 if(emcRecPoints)
158 emcRecPoints->Delete() ;
159 emcRecPoints = new TH2F("emcRecPoints","EMC RecPoints",nx,-x,x,nz,-z,z);
160 TH2F * cpvSdigits =(TH2F*) gROOT->FindObject("cpvSdigits") ;
161 if(cpvSdigits)
162 cpvSdigits->Delete() ;
163 cpvSdigits = new TH2F("cpvSdigits","CPV sdigits", nx,-x,x,nz,-z,z);
164 TH2F * cpvDigits = (TH2F*)gROOT->FindObject("cpvDigits") ;
165 if(cpvDigits)
166 cpvDigits->Delete() ;
167 cpvDigits = new TH2F("cpvDigits","CPV digits", nxCPV,-x,x,nzCPV,-z,z) ;
168 TH2F * cpvRecPoints= (TH2F*)gROOT->FindObject("cpvRecPoints") ;
169 if(cpvRecPoints)
170 cpvRecPoints->Delete() ;
171 cpvRecPoints = new TH2F("cpvRecPoints","CPV RecPoints", nxCPV,-x,x,nzCPV,-z,z) ;
172
173 TH2F * phot = (TH2F*)gROOT->FindObject("phot") ;
174 if(phot)
175 phot->Delete() ;
176 phot = new TH2F("phot","Primary Photon", nx,-x,x,nz,-z,z);
177 TH2F * recPhot = (TH2F*)gROOT->FindObject("recPhot") ;
178 if(recPhot)
179 recPhot->Delete() ;
180 recPhot = new TH2F("recPhot","RecParticles with primary Photon",nx,-x,x,nz,-z,z);
9688c1dd 181
ed4205d8 182
efad3788 183 //Plot Primary Particles
7b7c1533 184 const TParticle * primary ;
efad3788 185 Int_t iPrimary ;
7b7c1533 186 for ( iPrimary = 0 ; iPrimary < gime->NPrimaries() ; iPrimary++)
efad3788 187 {
7b7c1533 188 primary = gime->Primary(iPrimary) ;
efad3788 189 Int_t primaryType = primary->GetPdgCode() ;
1c5cf796 190// if( (primaryType == 211)||(primaryType == -211)||(primaryType == 2212)||(primaryType == -2212)
191// ||(primaryType == 11)||(primaryType == -11) ) {
192// Int_t moduleNumber ;
193// Double_t primX, primZ ;
194// phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
195// if(moduleNumber==Nmod)
196// charg->Fill(primZ,primX,primary->Energy()) ;
197// }
efad3788 198 if( primaryType == 22 ) {
199 Int_t moduleNumber ;
200 Double_t primX, primZ ;
7b7c1533 201 phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
202 if(moduleNumber==Nmod)
efad3788 203 phot->Fill(primZ,primX,primary->Energy()) ;
204 }
1c5cf796 205// else{
206// if( primaryType == -2112 ) {
207// Int_t moduleNumber ;
208// Double_t primX, primZ ;
209// phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
210// if(moduleNumber==Nmod)
211// nbar->Fill(primZ,primX,primary->Energy()) ;
212// }
213// }
efad3788 214 }
9688c1dd 215
ed4205d8 216
efad3788 217 Int_t iSDigit ;
cce01dd5 218 AliPHOSDigit * sdigit ;
afa51c4e 219 const TClonesArray * sdigits = gime->SDigits() ;
1c5cf796 220 Int_t nsdig[5] = {0,0,0,0,0} ;
9688c1dd 221 if(sdigits){
222 for(iSDigit = 0; iSDigit < sdigits->GetEntriesFast() ; iSDigit++)
efad3788 223 {
9688c1dd 224 sdigit = (AliPHOSDigit *) sdigits->At(iSDigit) ;
efad3788 225 Int_t relid[4];
7b7c1533 226 phosgeom->AbsToRelNumbering(sdigit->GetId(), relid) ;
efad3788 227 Float_t x,z ;
7b7c1533 228 phosgeom->RelPosInModule(relid,x,z) ;
9688c1dd 229 Float_t e = gime->SDigitizer()->Calibrate(sdigit->GetAmp()) ;
1c5cf796 230 nsdig[relid[0]-1]++ ;
efad3788 231 if(relid[0]==Nmod){
232 if(relid[1]==0) //EMC
9688c1dd 233 emcSdigits->Fill(x,z,e) ;
234 if( relid[1]!=0 )
235 cpvSdigits->Fill(x,z,e) ;
efad3788 236 }
237 }
9688c1dd 238 }
1c5cf796 239 cout << "Number of EMC + CPV SDigits per module: " <<endl ;
240 cout << nsdig[0] << " " << nsdig[1] << " " << nsdig[2] << " " << nsdig[3]<< " " << nsdig[4] << endl ;
241 cout << endl ;
242
9688c1dd 243
efad3788 244 //Plot digits
245 Int_t iDigit ;
cce01dd5 246 AliPHOSDigit * digit ;
afa51c4e 247 const TClonesArray * digits = gime->Digits();
9688c1dd 248 if(digits) {
cce01dd5 249 for(iDigit = 0; iDigit < digits->GetEntriesFast(); iDigit++)
250 {
9688c1dd 251 digit = (AliPHOSDigit *) digits->At(iDigit) ;
cce01dd5 252 Int_t relid[4];
253 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
254 Float_t x,z ;
255 phosgeom->RelPosInModule(relid,x,z) ;
9688c1dd 256 Float_t e = gime->SDigitizer()->Calibrate(digit->GetAmp()) ;
cce01dd5 257 if(relid[0]==Nmod){
258 if(relid[1]==0) //EMC
9688c1dd 259 emcDigits->Fill(x,z,e) ;
260 if( relid[1]!=0 )
261 cpvDigits->Fill(x,z,e) ;
cce01dd5 262 }
efad3788 263 }
9688c1dd 264 }
cce01dd5 265
266
efad3788 267 //Plot RecPoints
268 Int_t irecp ;
269 TVector3 pos ;
9688c1dd 270 TObjArray * emcrp = gime->EmcRecPoints() ;
271 if(emcrp) {
cce01dd5 272 for(irecp = 0; irecp < emcrp->GetEntriesFast() ; irecp ++){
9688c1dd 273 AliPHOSEmcRecPoint * emc = (AliPHOSEmcRecPoint *) emcrp->At(irecp) ;
cce01dd5 274 if(emc->GetPHOSMod()==Nmod){
275 emc->GetLocalPosition(pos) ;
9688c1dd 276 emcRecPoints->Fill(pos.X(),pos.Z(),emc->GetEnergy());
cce01dd5 277 }
efad3788 278 }
9688c1dd 279 }
cce01dd5 280
9688c1dd 281 TObjArray * cpvrp = gime->CpvRecPoints() ;
282 if(cpvrp) {
cce01dd5 283 for(irecp = 0; irecp < cpvrp->GetEntriesFast() ; irecp ++){
9688c1dd 284 AliPHOSRecPoint * cpv = (AliPHOSCpvRecPoint *) cpvrp->At(irecp) ;
285 if(cpv->GetPHOSMod()==Nmod){
286 cpv->GetLocalPosition(pos) ;
287 cpvRecPoints->Fill(pos.X(),pos.Z(),cpv->GetEnergy());
efad3788 288 }
289 }
9688c1dd 290 }
291
efad3788 292 //Plot RecParticles
9688c1dd 293 AliPHOSRecParticle * recParticle ;
efad3788 294 Int_t iRecParticle ;
9688c1dd 295 TClonesArray * rp = gime->RecParticles() ;
296 TClonesArray * ts = gime->TrackSegments() ;
297 if(rp && ts && emcrp) {
298 for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast() ; iRecParticle++ )
cce01dd5 299 {
9688c1dd 300 recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
cce01dd5 301 Int_t moduleNumberRec ;
302 Double_t recX, recZ ;
303 phosgeom->ImpactOnEmc(recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
304 if(moduleNumberRec == Nmod){
ed4205d8 305
cce01dd5 306 Double_t minDistance = 5. ;
9688c1dd 307 Int_t closestPrimary = -1 ;
308
cce01dd5 309 //extract list of primaries: it is stored at EMC RecPoints
9688c1dd 310 Int_t emcIndex = ((AliPHOSTrackSegment *) ts->At(recParticle->GetPHOSTSIndex()))->GetEmcIndex() ;
cce01dd5 311 Int_t numberofprimaries ;
9688c1dd 312 Int_t * listofprimaries = ((AliPHOSRecPoint*) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
cce01dd5 313 Int_t index ;
314 const TParticle * primary ;
315 Double_t distance = minDistance ;
316
317 for ( index = 0 ; index < numberofprimaries ; index++){
318 primary = gime->Primary(listofprimaries[index]) ;
319 Int_t moduleNumber ;
320 Double_t primX, primZ ;
321 phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
322 if(moduleNumberRec == moduleNumber)
323 distance = TMath::Sqrt((recX-primX)*(recX-primX)+(recZ-primZ)*(recZ-primZ) ) ;
324 if(minDistance > distance)
325 {
326 minDistance = distance ;
327 closestPrimary = listofprimaries[index] ;
328 }
329 }
330
331 if(closestPrimary >=0 ){
332
333 Int_t primaryType = gime->Primary(closestPrimary)->GetPdgCode() ;
334
335 if(primaryType==22)
336 recPhot->Fill(recZ,recX,recParticle->Energy()) ;
1c5cf796 337// else
338// if(primaryType==-2112)
339// recNbar->Fill(recZ,recX,recParticle->Energy()) ;
cce01dd5 340 }
efad3788 341 }
342 }
9688c1dd 343
344 }
ed4205d8 345
efad3788 346 //Plot made histograms
9688c1dd 347 emcSdigits->Draw("box") ;
348 emcDigits->SetLineColor(5) ;
1c5cf796 349 emcDigits->Draw("boxsame") ;
9688c1dd 350 emcRecPoints->SetLineColor(2) ;
351 emcRecPoints->Draw("boxsame") ;
352 cpvSdigits->SetLineColor(1) ;
1c5cf796 353 cpvSdigits->Draw("boxsame") ;
2bed9e3e 354
2bed9e3e 355}
e4761a49 356//____________________________________________________________________________
357void AliPHOSAnalyze::Ls(){
358 //lists branches and titles of PHOS-related branches of TreeR, TreeD, TreeS
359
7b7c1533 360 AliPHOSGetter::GetInstance(ffileName.Data()) ;
134ce69a 361
e4761a49 362 Int_t ibranch;
363 TObjArray * branches;
364
365 branches = gAlice->TreeS()->GetListOfBranches() ;
366
367 cout << "TreeS: " << endl ;
368 for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
369 TBranch * branch=(TBranch *) branches->At(ibranch) ;
370 if(strstr(branch->GetName(),"PHOS") )
371 cout << " " << branch->GetName() << " " << branch->GetTitle() << endl ;
372 }
373 cout << endl ;
374
375 branches = gAlice->TreeD()->GetListOfBranches() ;
376
377 cout << "TreeD: " << endl ;
378 for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
379 TBranch * branch=(TBranch *) branches->At(ibranch) ;
380 if(strstr(branch->GetName(),"PHOS") )
381 cout << " " << branch->GetName() << " " << branch->GetTitle() << endl ;
382 }
383 cout << endl ;
384
385
386 branches = gAlice->TreeR()->GetListOfBranches() ;
387
388 cout << "TreeR: " << endl ;
389 for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
390 TBranch * branch=(TBranch *) branches->At(ibranch) ;
391 if(strstr(branch->GetName(),"PHOS") )
392 cout << " " << branch->GetName() << " " << branch->GetTitle() << endl ;
393 }
394 cout << endl ;
395
396
397}
2bed9e3e 398//____________________________________________________________________________
efad3788 399 void AliPHOSAnalyze::InvariantMass(const char* branchTitle)
2bed9e3e 400{
efad3788 401 // Calculates Real and Mixed invariant mass distributions
7b7c1533 402 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),branchTitle) ;
8c0cd6e9 403
efad3788 404 Int_t nMixedEvents = 4 ; //# of events used for calculation of 'mixed' distribution
2bed9e3e 405
efad3788 406 //opening file
407 TFile * mfile = new TFile("invmass.root","update");
69183710 408
efad3788 409 //========== Reading /Booking Histograms
410 TH2D * hRealEM = 0 ;
411 hRealEM = (TH2D*) mfile->Get("hRealEM") ;
412 if(hRealEM == 0)
413 hRealEM = new TH2D("hRealEM", "Real for EM particles", 250,0.,1.,40,0.,4.) ;
414 TH2D * hRealPhot = 0 ;
415
416 hRealPhot = (TH2D*)mfile->Get("hRealPhot");
417 if(hRealPhot == 0)
418 hRealPhot = new TH2D("hRealPhot", "Real for kPhoton particles", 250,0.,1.,40,0.,4.) ;
419
420 TH2D * hMixedEM = 0 ;
421 hMixedEM = (TH2D*) mfile->Get("hMixedEM") ;
422 if(hMixedEM == 0)
423 hMixedEM = new TH2D("hMixedEM", "Mixed for EM particles", 250,0.,1.,40,0.,4.) ;
424
425 TH2D * hMixedPhot = 0 ;
426 hMixedPhot = (TH2D*) mfile->Get("hMixedPhot") ;
427 if(hMixedPhot == 0)
428 hMixedPhot = new TH2D("hMixedPhot","Mixed for kPhoton particles",250,0.,1.,40,0.,4.) ;
69183710 429
efad3788 430
431 //reading event and copyng it to TConesArray of all photons
432
433 TClonesArray * allRecParticleList = new TClonesArray("AliPHOSRecParticle", 1000) ;
fd0eb6da 434 Int_t * nRecParticles = new Int_t[nMixedEvents] ; // to mark boundaries of each event in the total list
efad3788 435 for(Int_t index = 0; index < nMixedEvents; index ++)
436 nRecParticles[index] = 0 ;
437 Int_t iRecPhot = 0 ; // number of EM particles in total list
69183710 438
efad3788 439 //scan over all events
440 Int_t event ;
154fc86d 441 Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
7b7c1533 442 // for(event = 0; event < gime->MaxEvent(); event++ ){
443 for(event = 0; event < maxevent; event++ ){
9688c1dd 444 gime->Event(event,"R"); //will read only TreeR
efad3788 445
446 //copy EM RecParticles to the "total" list
7b7c1533 447 const AliPHOSRecParticle * recParticle ;
efad3788 448 Int_t iRecParticle ;
9688c1dd 449 TClonesArray * rp = gime->RecParticles() ;
450 if(!rp){
451 cout << "AliPHOSAnalyze::InvariantMass --> Can't find RecParticles " << endl ;
452 return ;
453 }
454
455 for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast(); iRecParticle++ )
456 {
457 recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
458 if((recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)||
459 (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW))
460 new( (*allRecParticleList)[iRecPhot++] ) AliPHOSRecParticle(*recParticle) ;
461 }
efad3788 462
463 Int_t mevent = event%nMixedEvents ; //event number in the "mixed" cicle
464 nRecParticles[mevent] = iRecPhot-1 ;
9688c1dd 465
efad3788 466 //check, if it is time to calculate invariant mass?
154fc86d 467 Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
7b7c1533 468 if((mevent == 0) && (event +1 == maxevent)){
9688c1dd 469
470 // if((mevent == 0) && (event +1 == gime->MaxEvent())){
69183710 471
efad3788 472 //calculate invariant mass:
473 Int_t irp1,irp2 ;
474 Int_t nCurEvent = 0 ;
69183710 475
efad3788 476 for(irp1 = 0; irp1 < allRecParticleList->GetEntries()-1; irp1++){
477 AliPHOSRecParticle * rp1 = (AliPHOSRecParticle *)allRecParticleList->At(irp1) ;
478
479 for(irp2 = irp1+1; irp2 < allRecParticleList->GetEntries(); irp2++){
480 AliPHOSRecParticle * rp2 = (AliPHOSRecParticle *)allRecParticleList->At(irp2) ;
481
482 Double_t invMass ;
483 invMass = (rp1->Energy()+rp2->Energy())*(rp1->Energy()+rp2->Energy())-
484 (rp1->Px()+rp2->Px())*(rp1->Px()+rp2->Px())-
485 (rp1->Py()+rp2->Py())*(rp1->Py()+rp2->Py())-
486 (rp1->Pz()+rp2->Pz())*(rp1->Pz()+rp2->Pz()) ;
487
488 if(invMass> 0)
489 invMass = TMath::Sqrt(invMass);
490
491 Double_t pt ;
492 pt = TMath::Sqrt((rp1->Px()+rp2->Px() )*( rp1->Px()+rp2->Px() ) +
493 (rp1->Py()+rp2->Py() )*( rp1->Py()+rp2->Py() ) );
494
495 if(irp1 > nRecParticles[nCurEvent])
496 nCurEvent++;
497
498 if(irp2 <= nRecParticles[nCurEvent]){ //'Real' event
499 hRealEM->Fill(invMass,pt);
9688c1dd 500 if((rp1->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)&&
501 (rp2->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST) )
efad3788 502 hRealPhot->Fill(invMass,pt);
503 }
504 else{
505 hMixedEM->Fill(invMass,pt);
9688c1dd 506 if((rp1->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)&&
507 (rp2->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST) )
efad3788 508 hMixedPhot->Fill(invMass,pt);
509 } //real-mixed
510
511 } //loop over second rp
512 }//loop over first rp
ed4205d8 513
efad3788 514 //Make some cleanings
515 for(Int_t index = 0; index < nMixedEvents; index ++)
516 nRecParticles[index] = 0 ;
517 iRecPhot = 0 ;
518 allRecParticleList->Clear() ;
69183710 519
efad3788 520 }
521 }
522 delete allRecParticleList ;
69183710 523
efad3788 524 //writing output
525 mfile->cd();
69183710 526
efad3788 527 hRealEM->Write(0,kOverwrite) ;
528 hRealPhot->Write(0,kOverwrite) ;
529 hMixedEM->Write(0,kOverwrite) ;
530 hMixedPhot->Write(0,kOverwrite) ;
69183710 531
efad3788 532 mfile->Write();
533 mfile->Close();
534 delete mfile ;
fd0eb6da 535 delete nRecParticles;
c3b9b3f9 536
537}
538
ed4205d8 539//____________________________________________________________________________
efad3788 540 void AliPHOSAnalyze::EnergyResolution(const char * branchTitle)
ed4205d8 541{
efad3788 542 //fills two dimentional histo: energy of primary vs. energy of reconstructed
ed4205d8 543
efad3788 544 TH2F * hAllEnergy = 0 ; //all reconstructed with primary photon
545 TH2F * hPhotEnergy= 0 ; //kGamma with primary photon
546 TH2F * hEMEnergy = 0 ; //electromagnetic with primary photon
ed4205d8 547
efad3788 548 //opening file and reading histograms if any
549 TFile * efile = new TFile("energy.root","update");
ed4205d8 550
efad3788 551 hAllEnergy = (TH2F*)efile->Get("hAllEnergy") ;
552 if(hAllEnergy == 0)
553 hAllEnergy = new TH2F("hAllEnergy", "Energy of any RP with primary photon",100, 0., 5., 100, 0., 5.);
554
555 hPhotEnergy =(TH2F*) efile->Get("hPhotEnergy") ;
556 if(hPhotEnergy == 0)
557 hPhotEnergy = new TH2F("hPhotEnergy", "Energy of kGAMMA with primary photon",100, 0., 5., 100, 0., 5.);
558
559 hEMEnergy =(TH2F*) efile->Get("hEMEnergy");
560 if(hEMEnergy == 0)
561 hEMEnergy = new TH2F("hEMEnergy", "Energy of EM with primary photon", 100, 0., 5., 100, 0., 5.);
ed4205d8 562
ed4205d8 563
7b7c1533 564 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),branchTitle) ;
565 const AliPHOSGeometry * phosgeom = gime->PHOSGeometry() ;
efad3788 566
567 Int_t ievent;
154fc86d 568 Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
7b7c1533 569 for ( ievent=0; ievent < maxevent ; ievent++){
efad3788 570
571 //read the current event
7b7c1533 572 gime->Event(ievent) ;
efad3788 573
7b7c1533 574 const AliPHOSRecParticle * recParticle ;
efad3788 575 Int_t iRecParticle ;
9688c1dd 576 TClonesArray * rp = gime->RecParticles() ;
577 if(!rp) {
578 cout << "AliPHOSAnalyze::EnergyResolution --> Event " <<ievent
579 << ", Can't find RecParticles " << endl ;
580 return ;
581 }
582 TClonesArray * ts = gime->TrackSegments() ;
583 if(!ts) {
584 cout << "AliPHOSAnalyze::EnergyResolution --> Event " <<ievent
585 << ", Can't find TrackSegments " << endl ;
586 return ;
587 }
588 TObjArray * emcrp = gime->EmcRecPoints() ;
589 if(!emcrp){
590 cout << "AliPHOSAnalyze::EnergyResolution --> Event " <<ievent
591 << ", Can't find EmcRecPoints " << endl ;
592 return ;
593 }
594
595 for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast() ;iRecParticle++ ){
596 recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
597
598 //find the closest primary
599 Int_t moduleNumberRec ;
600 Double_t recX, recZ ;
601 phosgeom->ImpactOnEmc(recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
602
603 Double_t minDistance = 100. ;
604 Int_t closestPrimary = -1 ;
605
606 //extract list of primaries: it is stored at EMC RecPoints
607 Int_t emcIndex = ((AliPHOSTrackSegment*) ts->At(recParticle->GetPHOSTSIndex()))->GetEmcIndex() ;
608 Int_t numberofprimaries ;
609 Int_t * listofprimaries = ((AliPHOSEmcRecPoint*) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
610
611 Int_t index ;
612 const TParticle * primary ;
613 Double_t distance = minDistance ;
614 Double_t dX, dZ;
615 Double_t dXmin = 0.;
616 Double_t dZmin = 0. ;
617 for ( index = 0 ; index < numberofprimaries ; index++){
618 primary = gime->Primary(listofprimaries[index]) ;
619 Int_t moduleNumber ;
620 Double_t primX, primZ ;
621 phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
622 if(moduleNumberRec == moduleNumber) {
623 dX = recX - primX;
624 dZ = recZ - primZ;
625 distance = TMath::Sqrt(dX*dX + dZ*dZ) ;
626 if(minDistance > distance) {
627 minDistance = distance ;
628 dXmin = dX;
629 dZmin = dZ;
630 closestPrimary = listofprimaries[index] ;
efad3788 631 }
632 }
9688c1dd 633 }
634
635 //if found primary, fill histograms
636 if(closestPrimary >=0 ){
637 const TParticle * primary = gime->Primary(closestPrimary) ;
638 if(primary->GetPdgCode() == 22){
639 hAllEnergy->Fill(primary->Energy(), recParticle->Energy()) ;
640 if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST){
641 hPhotEnergy->Fill(primary->Energy(), recParticle->Energy() ) ;
642 hEMEnergy->Fill(primary->Energy(), recParticle->Energy() ) ;
cce01dd5 643 }
9688c1dd 644 else
645 if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW)
646 hEMEnergy->Fill(primary->Energy(), recParticle->Energy() ) ;
efad3788 647 }
648 }
9688c1dd 649 }
efad3788 650 }
9688c1dd 651
efad3788 652 //write filled histograms
653 efile->cd() ;
654 hAllEnergy->Write(0,kOverwrite) ;
655 hPhotEnergy->Write(0,kOverwrite) ;
656 hEMEnergy->Write(0,kOverwrite) ;
657 // efile->Write() ;
658 efile->Close() ;
659 delete efile ;
9688c1dd 660
efad3788 661}
fc879520 662//____________________________________________________________________________
efad3788 663void AliPHOSAnalyze::PositionResolution(const char * branchTitle)
fc879520 664{
efad3788 665 //fills two dimentional histo: energy vs. primary - reconstructed distance
666
667
668
669 TH2F * hAllPosition = 0; // Position of any RP with primary photon
670 TH2F * hPhotPosition = 0; // Position of kGAMMA with primary photon
671 TH2F * hEMPosition = 0; // Position of EM with primary photon
672
673 TH1F * hAllPositionX = 0; // X-Position Resolution of photons with photon primary
674 TH1F * hAllPositionZ = 0; // Z-Position Resolution of photons with photon primary
675
676
677 //opening file and reading histograms if any
678 TFile * pfile = new TFile("position.root","update");
679
680 hAllPosition = (TH2F*)pfile->Get("hAllPosition");
681 if(hAllPosition == 0)
682 hAllPosition = new TH2F("hAllPosition",
683 "Position of any RP with primary photon",100, 0., 5., 100, 0., 5.);
684 hPhotPosition= (TH2F*)pfile->Get("hPhotPosition");
685 if(hPhotPosition == 0)
686 hPhotPosition = new TH2F("hPhotPosition",
687 "Position of kGAMMA with primary photon",100, 0., 5., 100, 0., 5.);
688 hEMPosition= (TH2F*)pfile->Get("hEMPosition") ;
689 if(hEMPosition == 0)
690 hEMPosition = new TH2F("hEMPosition",
691 "Position of EM with primary photon", 100, 0., 5., 100, 0., 5.);
692 hAllPositionX = (TH1F*)pfile->Get("hAllPositionX") ;
693 if(hAllPositionX == 0)
694 hAllPositionX = new TH1F("hAllPositionX",
695 "Delta X of any RP with primary photon",100, -2., 2.);
696 hAllPositionZ =(TH1F*) pfile->Get("hAllPositionZ") ;
697 if(hAllPositionZ == 0)
698 hAllPositionZ = new TH1F("hAllPositionZ",
699 "Delta X of any RP with primary photon",100, -2., 2.);
700
701
7b7c1533 702 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),branchTitle) ;
703 const AliPHOSGeometry * phosgeom = gime->PHOSGeometry() ;
a88eea6f 704
efad3788 705 Int_t ievent;
9688c1dd 706 Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
7b7c1533 707 for ( ievent=0; ievent < maxevent ; ievent++){
9688c1dd 708
efad3788 709 //read the current event
7b7c1533 710 gime->Event(ievent) ;
9688c1dd 711 TClonesArray * rp = gime->RecParticles() ;
712 if(!rp) {
713 cout << "AliPHOSAnalyze::PositionResolution --> Event " <<ievent
714 << ", Can't find RecParticles " << endl ;
715 return ;
716 }
717 TClonesArray * ts = gime->TrackSegments() ;
718 if(!ts) {
719 cout << "AliPHOSAnalyze::PositionResolution --> Event " <<ievent
720 << ", Can't find TrackSegments " << endl ;
721 return ;
722 }
723 TObjArray * emcrp = gime->EmcRecPoints() ;
724 if(!emcrp){
725 cout << "AliPHOSAnalyze::PositionResolution --> Event " <<ievent
726 << ", Can't find EmcRecPoints " << endl ;
727 return ;
728 }
efad3788 729
9688c1dd 730
7b7c1533 731 const AliPHOSRecParticle * recParticle ;
efad3788 732 Int_t iRecParticle ;
9688c1dd 733 for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast(); iRecParticle++ ){
734 recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
735
736 //find the closest primary
737 Int_t moduleNumberRec ;
738 Double_t recX, recZ ;
739 phosgeom->ImpactOnEmc(recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
740
741 Double_t minDistance = 100. ;
742 Int_t closestPrimary = -1 ;
743
744 //extract list of primaries: it is stored at EMC RecPoints
745 Int_t emcIndex = ((AliPHOSTrackSegment*) ts->At(recParticle->GetPHOSTSIndex()))->GetEmcIndex() ;
746 Int_t numberofprimaries ;
747 Int_t * listofprimaries = ((AliPHOSEmcRecPoint *) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
748
749 Int_t index ;
750 const TParticle * primary ;
751 Double_t distance = minDistance ;
752 Double_t dX = 1000; // incredible number
753 Double_t dZ = 1000; // for the case if no primary will be found
754 Double_t dXmin = 0.;
755 Double_t dZmin = 0. ;
756 for ( index = 0 ; index < numberofprimaries ; index++){
757 primary = gime->Primary(listofprimaries[index]) ;
758 Int_t moduleNumber ;
759 Double_t primX, primZ ;
760 phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
761 if(moduleNumberRec == moduleNumber) {
762 dX = recX - primX;
763 dZ = recZ - primZ;
764 distance = TMath::Sqrt(dX*dX + dZ*dZ) ;
765 if(minDistance > distance) {
766 minDistance = distance ;
767 dXmin = dX;
768 dZmin = dZ;
769 closestPrimary = listofprimaries[index] ;
efad3788 770 }
771 }
9688c1dd 772 }
773
774 //if found primary, fill histograms
775 if(closestPrimary >=0 ){
776 const TParticle * primary = gime->Primary(closestPrimary) ;
777 if(primary->GetPdgCode() == 22){
778 hAllPosition->Fill(primary->Energy(), minDistance) ;
779 hAllPositionX->Fill(primary->Energy(), dX) ;
780 hAllPositionZ->Fill(primary->Energy(), dZ) ;
781 if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST){
782 hPhotPosition->Fill(primary->Energy(), minDistance ) ;
783 hEMPosition->Fill(primary->Energy(), minDistance ) ;
cce01dd5 784 }
9688c1dd 785 else
786 if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW)
787 hEMPosition->Fill(primary->Energy(), minDistance ) ;
efad3788 788 }
789 }
9688c1dd 790 }
efad3788 791 }
792
793 //Write output histgrams
794 pfile->cd() ;
795 hAllPosition->Write(0,kOverwrite) ;
796 hAllPositionX->Write(0,kOverwrite) ;
797 hAllPositionZ->Write(0,kOverwrite) ;
798 hPhotPosition->Write(0,kOverwrite) ;
799 hEMPosition->Write(0,kOverwrite) ;
800 pfile->Write() ;
801 pfile->Close() ;
802 delete pfile ;
9688c1dd 803
804
efad3788 805}
92862013 806//____________________________________________________________________________
efad3788 807void AliPHOSAnalyze::Contamination(const char* RecPointsTitle){
808// fills spectra of primary photons and several kinds of
809// reconstructed particles, so that analyzing them one can
810// estimate conatmination, efficiency of registration etc.
811
812 //define several general histograms
813 TH1F * hPrimary = 0; //spectrum (P_t distribution) of primary photons
814 TH1F * hAllRP = 0; //spectrum of all RecParticles in PHOS
815 TH1F * hPhot = 0; //spectrum of kGAMMA RecParticles
efad3788 816 TH1F * hShape = 0; //spectrum of all EM RecParticles
817 TH1F * hVeto = 0; //spectrum of all neutral RecParticles
818
819 //Now separate histograms in accoradance with primary
820 //primary - photon
821 TH1F * hPhotReg = 0; //Registeres as photon
822 TH1F * hPhotEM = 0; //Registered as EM
efad3788 823
824 //primary - n
825 TH1F * hNReg = 0; //Registeres as photon
826 TH1F * hNEM = 0; //Registered as EM
efad3788 827
828 //primary - nBar
829 TH1F * hNBarReg = 0; //Registeres as photon
830 TH1F * hNBarEM = 0; //Registered as EM
efad3788 831
832 //primary - charged hadron (pBar excluded)
833 TH1F * hChargedReg = 0; //Registeres as photon
834 TH1F * hChargedEM = 0; //Registered as EM
efad3788 835
836 //primary - pBar
837 TH1F * hPbarReg = 0; //Registeres as photon
838 TH1F * hPbarEM = 0; //Registered as EM
efad3788 839
840
841 //Reading histograms from the file
842 TFile * cfile = new TFile("contamination.root","update") ;
843
844 //read general histograms
845 hPrimary = (TH1F*) cfile->Get("hPrimary") ;
846 if(hPrimary == 0)
847 hPrimary= new TH1F("hPrimary", "Primary photon spectrum", 100, 0., 5.);
848 hAllRP = (TH1F*)cfile->Get("hAllRP") ;
849 if(hAllRP == 0)
850 hAllRP = new TH1F("hAllRP","All Reconstructed particles", 100, 0., 5.);
851 hPhot = (TH1F*)cfile->Get("hPhot") ;
852 if(hPhot == 0)
853 hPhot = new TH1F("hPhot","All kGAMMA RecParticles",100, 0., 5.);
efad3788 854 hShape = (TH1F*) cfile->Get("hShape") ;
855 if(hShape == 0)
856 hShape = new TH1F("hShape","All particles with EM shower",100, 0., 5.);
857 hVeto= (TH1F*)cfile->Get("hVeto") ;
858 if(hVeto == 0)
859 hVeto = new TH1F("hVeto", "All uncharged particles", 100, 0., 5.);
860
861
862 //primary - photon
863 hPhotReg = (TH1F*)cfile->Get("hPhotReg");
864 if(hPhotReg == 0)
865 hPhotReg = new TH1F("hPhotReg","Photon registered as photon",100, 0., 5.);
866 hPhotEM =(TH1F*)cfile->Get("hPhotEM");
867 if(hPhotEM== 0)
868 hPhotEM = new TH1F("hPhotEM", "Photon registered as EM", 100, 0., 5.);
efad3788 869
870 //primary - n
871 hNReg = (TH1F*)cfile->Get("hNReg");
872 if(hNReg== 0)
873 hNReg = new TH1F("hNReg", "N registered as photon", 100, 0., 5.);
874 hNEM = (TH1F*)cfile->Get("hNEM");
875 if(hNEM== 0)
876 hNEM = new TH1F("hNEM", "N registered as EM", 100, 0., 5.);
efad3788 877
878 //primary - nBar
879 hNBarReg =(TH1F*)cfile->Get("hNBarReg");
880 if(hNBarReg== 0)
881 hNBarReg = new TH1F("hNBarReg", "NBar registered as photon", 100, 0., 5.);
882 hNBarEM =(TH1F*)cfile->Get("hNBarEM");
883 if(hNBarEM== 0)
884 hNBarEM = new TH1F("hNBarEM", "NBar registered as EM", 100, 0., 5.);
efad3788 885
886 //primary - charged hadron (pBar excluded)
887 hChargedReg = (TH1F*)cfile->Get("hChargedReg");
888 if(hChargedReg== 0)
889 hChargedReg= new TH1F("hChargedReg", "Charged hadron registered as photon",100, 0., 5.);
890 hChargedEM = (TH1F*)cfile->Get("hChargedEM");
891 if(hChargedEM== 0)
892 hChargedEM= new TH1F("hChargedEM","Charged registered as EM",100, 0., 5.);
9688c1dd 893
efad3788 894 //primary - pBar
895 hPbarReg = (TH1F*)cfile->Get("hPbarReg");
896 if(hPbarReg== 0)
897 hPbarReg= new TH1F("hPbarReg", "pBar registered as photon",100, 0., 5.);
898 hPbarEM = (TH1F*)cfile->Get("hPbarEM");
899 if(hPbarEM== 0)
900 hPbarEM= new TH1F("hPbarEM","Pbar registered as EM",100, 0., 5.);
eecb6765 901
92862013 902
efad3788 903 //Now make some initializations
904
905 Int_t counter[8][5] ; //# of registered particles
906 Int_t i1,i2 ;
907 for(i1 = 0; i1<8; i1++)
908 for(i2 = 0; i2<5; i2++)
909 counter[i1][i2] = 0 ;
910
911
912
7b7c1533 913 AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),RecPointsTitle) ;
914 const AliPHOSGeometry * phosgeom = gime->PHOSGeometry() ;
154fc86d 915
efad3788 916 Int_t ievent;
154fc86d 917 Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
7b7c1533 918 for ( ievent=0; ievent < maxevent ; ievent++){
efad3788 919
7b7c1533 920 gime->Event(ievent) ;
efad3788 921
9688c1dd 922 TClonesArray * rp = gime->RecParticles() ;
923 if(!rp) {
924 cout << "AliPHOSAnalyze::Contamination --> Event " <<ievent
925 << ", Can't find RecParticles " << endl ;
926 return ;
927 }
928 TClonesArray * ts = gime->TrackSegments() ;
929 if(!ts) {
930 cout << "AliPHOSAnalyze::Contamination --> Event " <<ievent
931 << ", Can't find TrackSegments " << endl ;
932 return ;
933 }
934 TObjArray * emcrp = gime->EmcRecPoints() ;
935 if(!emcrp){
936 cout << "AliPHOSAnalyze::Contamination --> Event " <<ievent
937 << ", Can't find EmcRecPoints " << endl ;
938 return ;
939 }
940
941
efad3788 942 //=========== Make spectrum of the primary photons
7b7c1533 943 const TParticle * primary ;
efad3788 944 Int_t iPrimary ;
7b7c1533 945 for( iPrimary = 0 ; iPrimary < gime->NPrimaries() ; iPrimary++){
946 primary = gime->Primary(iPrimary) ;
efad3788 947 Int_t primaryType = primary->GetPdgCode() ;
948 if( primaryType == 22 ) {
949 //check, if photons folls onto PHOS
950 Int_t moduleNumber ;
951 Double_t primX, primZ ;
7b7c1533 952 phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
efad3788 953 if(moduleNumber)
954 hPrimary->Fill(primary->Energy()) ;
955
956 }
957
958 }
9688c1dd 959
efad3788 960 //========== Now scan over RecParticles
7b7c1533 961 const AliPHOSRecParticle * recParticle ;
efad3788 962 Int_t iRecParticle ;
9688c1dd 963 for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast(); iRecParticle++ ){
964 recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
965 //fill histo spectrum of all RecParticles
966 hAllRP->Fill(CorrectedEnergy(recParticle->Energy())) ;
967
968 //==========find the closest primary
969 Int_t moduleNumberRec ;
970 Double_t recX, recZ ;
971 phosgeom->ImpactOnEmc(recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
972
973 Double_t minDistance = 100. ;
974 Int_t closestPrimary = -1 ;
975
976 //extract list of primaries: it is stored at EMC RecPoints
977 Int_t emcIndex = ((AliPHOSTrackSegment *) ts->At(recParticle->GetPHOSTSIndex()))->GetEmcIndex() ;
978 Int_t numberofprimaries ;
979 Int_t * listofprimaries = ((AliPHOSEmcRecPoint *) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
980 Int_t index ;
981 const TParticle * primary ;
982 Double_t distance = minDistance ;
983 Double_t dX, dZ;
984 Double_t dXmin = 0.;
985 Double_t dZmin = 0. ;
986 for ( index = 0 ; index < numberofprimaries ; index++){
987 primary = gime->Primary(listofprimaries[index]) ;
988 Int_t moduleNumber ;
989 Double_t primX, primZ ;
990 phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
991 if(moduleNumberRec == moduleNumber) {
992 dX = recX - primX;
993 dZ = recZ - primZ;
994 distance = TMath::Sqrt(dX*dX + dZ*dZ) ;
995 if(minDistance > distance) {
996 minDistance = distance ;
997 dXmin = dX;
998 dZmin = dZ;
999 closestPrimary = listofprimaries[index] ;
efad3788 1000 }
1001 }
9688c1dd 1002 }
1003
1004 //===========define the "type" of closest primary
1005 if(closestPrimary >=0 ){
1006 Int_t primaryCode = -1;
1007 const TParticle * primary = gime->Primary(closestPrimary) ;
1008 Int_t primaryType = primary->GetPdgCode() ;
1009 if(primaryType == 22) // photon ?
1010 primaryCode = 0 ;
1011 else
1012 if(primaryType == 2112) // neutron
1013 primaryCode = 1 ;
efad3788 1014 else
9688c1dd 1015 if(primaryType == -2112) // Anti neutron
1016 primaryCode = 2 ;
efad3788 1017 else
9688c1dd 1018 if(primaryType == -2122) //Anti proton
1019 primaryCode = 4 ;
1020 else {
1021 TParticle tempo(*primary) ;
1022 if(tempo.GetPDG()->Charge())
1023 primaryCode = 3 ;
1024 }
1025
1026 //==========Now look at the type of RecParticle
1027 Float_t energy = CorrectedEnergy(recParticle->Energy()) ;
1028 if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST){
1029 hPhot->Fill(energy ) ;
1030 switch(primaryCode){
1031 case 0:
1032 hPhotReg->Fill(energy ) ;
1033 break ;
1034 case 1:
1035 hNReg->Fill(energy ) ;
1036 break ;
1037 case 2:
1038 hNBarReg->Fill(energy ) ;
1039 break ;
1040 case 3:
1041 hChargedReg->Fill(energy ) ;
1042 break ;
1043 case 4:
1044 hPbarReg->Fill(energy ) ;
1045 break ;
1046 default:
1047 break ;
efad3788 1048 }
9688c1dd 1049 }
1050 if((recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)||
1051 (recParticle->GetType() == AliPHOSFastRecParticle::kCHARGEDEMFAST)||
1052 (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW)||
1053 (recParticle->GetType() == AliPHOSFastRecParticle::kCHARGEDEMSLOW) ){ //with EM shower
1054 hShape->Fill(energy ) ;
1055 switch(primaryCode){
1056 case 0:
1057 hPhotEM->Fill(energy ) ;
1058 break ;
1059 case 1:
1060 hNEM->Fill(energy ) ;
1061 break ;
1062 case 2:
1063 hNBarEM->Fill(energy ) ;
1064 break ;
1065 case 3:
1066 hChargedEM->Fill(energy ) ;
1067 break ;
1068 case 4:
1069 hPbarEM->Fill(energy ) ;
1070 break ;
1071 default:
1072 break ;
efad3788 1073 }
1074 }
1075
9688c1dd 1076 if((recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)||
1077 (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALHAFAST) ||
1078 (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW) ||
1079 (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALHASLOW) ) //nuetral
1080 hVeto->Fill(energy ) ;
1081
1082 //fill number of primaries identified as ...
1083 if(primaryCode >= 0) // Primary code defined
1084 counter[recParticle->GetType()][primaryCode]++ ;
1085
1086 }
1087
1088 } // no closest primary found
efad3788 1089 }
46b146ca 1090
46b146ca 1091
efad3788 1092 //=================== SaveHistograms
1093 cfile->cd() ;
1094 hPrimary->Write(0,kOverwrite);
1095 hAllRP->Write(0,kOverwrite);
1096 hPhot->Write(0,kOverwrite);
efad3788 1097 hShape->Write(0,kOverwrite);
1098 hVeto->Write(0,kOverwrite);
1099 hPhotReg->Write(0,kOverwrite);
1100 hPhotEM->Write(0,kOverwrite);
efad3788 1101 hNReg ->Write(0,kOverwrite);
1102 hNEM ->Write(0,kOverwrite);
efad3788 1103 hNBarReg ->Write(0,kOverwrite);
1104 hNBarEM ->Write(0,kOverwrite);
efad3788 1105 hChargedReg ->Write(0,kOverwrite);
1106 hChargedEM ->Write(0,kOverwrite);
efad3788 1107 hPbarReg ->Write(0,kOverwrite);
1108 hPbarEM ->Write(0,kOverwrite);
46b146ca 1109
efad3788 1110 cfile->Write(0,kOverwrite);
1111 cfile->Close();
1112 delete cfile ;
1113
69183710 1114
efad3788 1115 //print Final Table
154fc86d 1116 maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
7b7c1533 1117 // cout << "Resolutions: Analyzed " << gime->MaxEvent() << " event(s)" << endl ;
2aad621e 1118
7b7c1533 1119 cout << "Resolutions: Analyzed " << maxevent << " event(s)" << endl ;
efad3788 1120 cout << endl ;
b2a60966 1121
efad3788 1122 cout << " Primary: Photon Neutron Antineutron Charged hadron AntiProton" << endl ;
1123 cout << "--------------------------------------------------------------------------------" << endl ;
1124 cout << " kGAMMA: "
1125 << setw(8) << counter[2][0] << setw(9) << counter[2][1] << setw(13) << counter[2][2]
1126 << setw(15)<< counter[2][3] << setw(13) << counter[2][4] << endl ;
1127 cout << " kGAMMAHA: "
1128 << setw(8) << counter[3][0] << setw(9) << counter[3][1] << setw(13) << counter[3][2]
1129 << setw(15)<< counter[3][3] << setw(13) << counter[3][4] << endl ;
1130 cout << " kNEUTRALEM: "
1131 << setw(8) << counter[0][0] << setw(9) << counter[0][1] << setw(13) << counter[0][2]
1132 << setw(15)<< counter[0][3] << setw(13) << counter[0][4] << endl ;
1133 cout << " kNEUTRALHA: "
1134 << setw(8) << counter[1][0] << setw(9) << counter[1][1] << setw(13) << counter[1][2]
1135 << setw(15)<< counter[1][3] << setw(13) << counter[1][4] << endl ;
1136 cout << " kABSURDEM: "
1137 << setw(8) << counter[4][0] << setw(9) << counter[4][1] << setw(13) << counter[4][2]
1138 << setw(15)<< counter[4][3] << setw(13) << counter[4][4] << endl ;
1139 cout << " kABSURDHA: "
1140 << setw(8) << counter[5][0] << setw(9) << counter[5][1] << setw(13) << counter[5][2]
1141 << setw(15)<< counter[5][3] << setw(13) << counter[5][4] << endl ;
1142 cout << " kELECTRON: "
1143 << setw(8) << counter[6][0] << setw(9) << counter[6][1] << setw(13) << counter[6][2]
1144 << setw(15)<< counter[6][3] << setw(13) << counter[6][4] << endl ;
1145 cout << " kCHARGEDHA: "
1146 << setw(8) << counter[7][0] << setw(9) << counter[7][1] << setw(13) << counter[7][2]
1147 << setw(15)<< counter[7][3] << setw(13) << counter[7][4] << endl ;
1148 cout << "--------------------------------------------------------------------------------" << endl ;
1149
1150 Int_t totalInd = 0 ;
1151 for(i1 = 0; i1<8; i1++)
1152 for(i2 = 0; i2<5; i2++)
1153 totalInd+=counter[i1][i2] ;
1154 cout << "Indentified particles: " << totalInd << endl ;
46b146ca 1155
69183710 1156}
1157
46b146ca 1158
efad3788 1159