PWG2/FORWARD/analysis/AliFMDAnalysisTaskCollector.cxx

   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
  16 /* $Id:$ */
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 //                                                                           //
  20 //  Here some comments on what this task does                                //
  21
  22 #include <TChain.h>
  23 #include <TF1.h>
  24 #include <TFile.h>
  25 #include <TInterpreter.h>
  26 #include <TList.h>
  27 #include <TMath.h>
  28 #include <TROOT.h>
  29 #include <TSystem.h>
  30 #include <iostream>
  31
  32 #include "AliFMDAnalysisTaskCollector.h"
  33 #include "AliAnalysisManager.h"
  34 #include "AliESDFMD.h"
  35 #include "AliESDEvent.h"
  36 #include "AliAODEvent.h"
  37 #include "AliAODHandler.h"
  38 #include "AliMCEventHandler.h"
  39 #include "AliStack.h"
  40 #include "AliMultiplicity.h"
  41 #include "AliESDVertex.h"
  42 #include "AliFMDAnaParameters.h"
  43 //#include "AliFMDGeometry.h"
  44
  45
  46 ClassImp(AliFMDAnalysisTaskCollector)
  47
  48 //____________________________________________________________________
  49 Double_t  AliFMDAnalysisTaskCollector::TripleLandau(Double_t *x, Double_t *par) {
  50
  51   Double_t energy        = x[0];
  52   Double_t constant = par[0];
  53   Double_t mpv      = par[1];
  54   Double_t sigma    = par[2];
  55   Double_t alpha    = par[3];
  56   Double_t beta     = par[4];
  57
  58   Double_t f = constant*(TMath::Landau(energy,mpv,sigma,kTRUE)+
  59                          alpha*TMath::Landau(energy,2*mpv+2*sigma*TMath::Log(2),2*sigma,kTRUE)+
  60                          beta*TMath::Landau(energy,3*mpv+3*sigma*TMath::Log(3),3*sigma,kTRUE) );
  61
  62   return f;
  63 }
  64 //____________________________________________________________________
  65
  66 AliFMDAnalysisTaskCollector::AliFMDAnalysisTaskCollector()
  67 : fDebug(0),
  68   fOutputList(0),
  69   fArray(0),
  70   fZvtxDist(0),
  71   fEvents(0),
  72   fEmptyEvents(0)
  73 {
  74   // Default constructor
  75
  76
  77 }
  78 //____________________________________________________________________
  79 AliFMDAnalysisTaskCollector::AliFMDAnalysisTaskCollector(const char* name):
  80     AliAnalysisTaskSE(name),
  81     fDebug(0),
  82     fOutputList(0),
  83     fArray(0),
  84     fZvtxDist(0),
  85     fEvents(0),
  86     fEmptyEvents(0)
  87 {
  88   // Default constructor
  89
  90   DefineOutput(1, TList::Class());
  91 }
  92 //____________________________________________________________________
  93 void AliFMDAnalysisTaskCollector::UserCreateOutputObjects()
  94 {
  95   // Create the output container
  96   printf("AnalysisTaskFMD::CreateOutPutData() \n");
  97
  98   fOutputList = new TList();//(TList*)GetOutputData(0);
  99   AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
 100
 101   fArray     = new TObjArray();
 102   fArray->SetName("FMD");
 103   fArray->SetOwner();
 104   TH1F* hEdist = 0;
 105   TH1F* hEmptyEdist = 0;
 106   TH1F* hRingEdist = 0;
 107   for(Int_t nEta = 0; nEta < pars->GetNetaBins(); nEta++) {
 108     TObjArray* etaArray = new TObjArray();
 109     fArray->AddAtAndExpand(etaArray,nEta);
 110     for(Int_t det =1; det<=3;det++)
 111       {
 112         TObjArray* detArray = new TObjArray();
 113         detArray->SetName(Form("FMD%d",det));
 114         etaArray->AddAtAndExpand(detArray,det);
 115         Int_t nRings = (det==1 ? 1 : 2);
 116         for(Int_t ring = 0;ring<nRings;ring++)
 117           {
 118             Char_t ringChar = (ring == 0 ? 'I' : 'O');
 119             hEdist = new TH1F(Form("FMD%d%c_etabin%d",det,ringChar,nEta),Form("FMD%d%c_etabin%d",det,ringChar,nEta),200,0,6);
 120             hEdist->SetXTitle("#Delta E / E_{MIP}");
 121             fOutputList->Add(hEdist);
 122             detArray->AddAtAndExpand(hEdist,ring);
 123
 124           }
 125       }
 126
 127   }
 128
 129   for(Int_t det =1; det<=3;det++)
 130     {
 131       Int_t nRings = (det==1 ? 1 : 2);
 132       for(Int_t ring = 0;ring<nRings;ring++)
 133         {
 134           Char_t ringChar = (ring == 0 ? 'I' : 'O');
 135           hRingEdist = new TH1F(Form("ringFMD%d%c",det,ringChar),Form("ringFMD%d%c",det,ringChar),200,0,6);
 136           hRingEdist->SetXTitle("#Delta E / E_{MIP}");
 137           fOutputList->Add(hRingEdist);
 138           hEmptyEdist = new TH1F(Form("emptyFMD%d%c",det,ringChar),Form("emptyFMD%d%c",det,ringChar),200,0,6);
 139           hEmptyEdist->SetXTitle("#Delta E / E_{MIP}");
 140           fOutputList->Add(hEmptyEdist);
 141
 142         }
 143     }
 144   fZvtxDist  = new TH1F("ZvtxDist","Vertex distribution",100,-30,30);
 145   fZvtxDist->SetXTitle("z vertex");
 146   fOutputList->Add(fZvtxDist);
 147 }
 148
 149 //____________________________________________________________________
 150 void AliFMDAnalysisTaskCollector::UserExec(Option_t */*option*/)
 151 {
 152
 153   AliESDEvent* esd = (AliESDEvent*)InputEvent();
 154   AliESD* old = esd->GetAliESDOld();
 155   if (old) {
 156     esd->CopyFromOldESD();
 157   }
 158   AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
 159   TString triggers = esd->GetFiredTriggerClasses();
 160   //if(!triggers.IsNull()) return;
 161   //Bool_t trigger = pars->IsEventTriggered(esd);
 162
 163   Bool_t physics = pars->IsEventTriggered(esd);
 164   Bool_t empty   = pars->IsEventTriggered(esd,AliFMDAnaParameters::kEMPTY);
 165   //std::cout<<physics<<"   "<<empty<<std::endl;
 166   //if(!trigger)
 167   //  physics = kFALSE;
 168   Double_t vertex[3];
 169
 170   Bool_t vtxStatus =   pars->GetVertex(esd,vertex);
 171   if(!vtxStatus)
 172     physics = kFALSE;
 173
 174   if(physics) {
 175     fZvtxDist->Fill(vertex[2]);
 176     if(TMath::Abs(vertex[2]) > pars->GetVtxCutZ())
 177       physics = kFALSE;
 178   }
 179   std::cout<<"Bananer "<<vtxStatus<<"    "<<physics<<std::endl;
 180   AliESDFMD* fmd = esd->GetFMDData();
 181   if (!fmd) return;
 182   if(physics)
 183     fEvents++;
 184   else if(empty)
 185     fEmptyEvents++;
 186
 187   if(!physics && !empty)
 188     return;
 189   TH1F* Edist = 0;
 190   TH1F* emptyEdist = 0;
 191   TH1F* ringEdist = 0;
 192   for(UShort_t det=1;det<=3;det++) {
 193
 194     Int_t nRings = (det==1 ? 1 : 2);
 195     for (UShort_t ir = 0; ir < nRings; ir++) {
 196       Char_t   ring = (ir == 0 ? 'I' : 'O');
 197       emptyEdist = (TH1F*)fOutputList->FindObject(Form("emptyFMD%d%c",det,ring));
 198       ringEdist = (TH1F*)fOutputList->FindObject(Form("ringFMD%d%c",det,ring));
 199       UShort_t nsec = (ir == 0 ? 20  : 40);
 200       UShort_t nstr = (ir == 0 ? 512 : 256);
 201
 202       for(UShort_t sec =0; sec < nsec;  sec++)  {
 203         for(UShort_t strip = 0; strip < nstr; strip++) {
 204
 205
 206           Float_t mult = fmd->Multiplicity(det,ring,sec,strip);
 207           if(mult == AliESDFMD::kInvalidMult || mult == 0) continue;
 208
 209           Float_t eta = pars->GetEtaFromStrip(det,ring,sec,strip,vertex[2]);
 210
 211           Int_t nEta  = pars->GetEtaBin(eta);
 212           //      std::cout<<det<<"  "<<ring<<"   "<<sec<<"    "<<strip<<"   "<<vertex[2]<<"   "<<eta<<"   "<<nEta<<std::endl;
 213           if(physics) {
 214             Edist = (TH1F*)fOutputList->FindObject(Form("FMD%d%c_etabin%d",det,ring,nEta));
 215             Edist->Fill(mult);
 216             ringEdist->Fill(mult);
 217           }
 218           else if(empty) {
 219             emptyEdist->Fill(mult);
 220
 221           }
 222           else {
 223             AliWarning("Something is wrong - wrong trigger");
 224             continue;
 225           }
 226
 227
 228         }
 229       }
 230     }
 231
 232     PostData(1, fOutputList);
 233
 234   }
 235 }
 236 //____________________________________________________________________
 237
 238 void AliFMDAnalysisTaskCollector::Terminate(Option_t */*option*/) {
 239   std::cout<<"Analysed "<<fEvents<<" events and "<<fEmptyEvents<<" empty"<<std::endl;
 240   AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
 241
 242
 243     for(Int_t det = 1; det<=3; det++) {
 244       Int_t nRings  =  (det == 1 ? 1 : 2);
 245       for(Int_t ring = 0;ring<nRings; ring++) {
 246
 247         Char_t ringChar = (ring == 0 ? 'I' : 'O');
 248         TH1F* hRingEdist = (TH1F*)fOutputList->FindObject(Form("ringFMD%d%c",det,ringChar));
 249         TH1F* hEmptyEdist = (TH1F*)fOutputList->FindObject(Form("emptyFMD%d%c",det,ringChar));
 250         if(fEmptyEvents)
 251           hEmptyEdist->Scale(1./(Float_t)fEmptyEvents);
 252
 253         if(fEvents)
 254           hRingEdist->Scale(1./(Float_t)fEvents);
 255         for(Int_t nEta = 0; nEta < pars->GetNetaBins(); nEta++) {
 256           TH1F* hEdist = (TH1F*)fOutputList->FindObject(Form("FMD%d%c_etabin%d",det,ringChar,nEta));
 257           if(fEvents)
 258             hEdist->Scale(1./(Float_t)fEvents);
 259
 260
 261       }
 262     }
 263   }
 264
 265 }
 266 //____________________________________________________________________
 267 void AliFMDAnalysisTaskCollector::ReadFromFile(const Char_t* filename, Bool_t store, Int_t speciesOption)  {
 268
 269   //speciesOption:
 270   //0: p+p Landau fit
 271   //1: Pb+Pb triple landau convolution fit
 272
 273   AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
 274   //pars->Init(kTRUE,AliFMDAnaParameters::kBackgroundCorrection);
 275
 276   TFile fin(filename,"UPDATE");
 277
 278   TList* list = (TList*)fin.Get("energyDist");
 279
 280   AliFMDAnaCalibEnergyDistribution* EnergyDist = new AliFMDAnaCalibEnergyDistribution();
 281
 282   EnergyDist->SetNetaBins(pars->GetNetaBins());
 283   EnergyDist->SetEtaLimits(pars->GetEtaMin(),pars->GetEtaMax());
 284
 285   TF1* fitFunc = 0;
 286
 287   for(Int_t det = 1; det<=3; det++) {
 288     Int_t nRings  =  (det == 1 ? 1 : 2);
 289     for(Int_t ring = 0;ring<nRings; ring++) {
 290       Char_t ringChar = (ring == 0 ? 'I' : 'O');
 291       TH1F* hEmptyEdist = (TH1F*)list->FindObject(Form("emptyFMD%d%c",det,ringChar));
 292       TH1F* hRingEdist = (TH1F*)list->FindObject(Form("ringFMD%d%c",det,ringChar));
 293       fitFunc = FitEnergyDistribution(hEmptyEdist, speciesOption) ;
 294       if(fitFunc)
 295         fitFunc->Write(Form("emptyFMD%d%c_fitfunc",det,ringChar),TObject::kWriteDelete);
 296       fitFunc = FitEnergyDistribution(hRingEdist, speciesOption) ;
 297       if(fitFunc)
 298         fitFunc->Write(Form("FMD%d%c_fitfunc",det,ringChar),TObject::kWriteDelete);
 299
 300
 301       EnergyDist->SetEmptyEnergyDistribution(det,ringChar,hEmptyEdist);
 302       EnergyDist->SetRingEnergyDistribution(det,ringChar,hRingEdist);
 303       for(Int_t nEta = 0; nEta < pars->GetNetaBins(); nEta++) {
 304         TH1F* hEdist = (TH1F*)list->FindObject(Form("FMD%d%c_etabin%d",det,ringChar,nEta));
 305
 306         fitFunc = FitEnergyDistribution(hEdist, speciesOption) ;
 307         if(fitFunc)
 308           fitFunc->Write(Form("FMD%d%c_etabin%d_fitfunc",det,ringChar,nEta),TObject::kWriteDelete);
 309         EnergyDist->SetEnergyDistribution(det,ringChar,nEta,hEdist);
 310
 311       }
 312
 313     }
 314
 315   }
 316
 317   fin.Write();
 318   fin.Close();
 319
 320   if(store) {
 321     TFile fcalib(pars->GetPath(pars->GetEdistID() ),"RECREATE");
 322     EnergyDist->Write(AliFMDAnaParameters::GetEdistID());
 323     fcalib.Close();
 324   }
 325
 326
 327
 328 }
 329 //____________________________________________________________________
 330 TF1* AliFMDAnalysisTaskCollector::FitEnergyDistribution(TH1F* hEnergy, Int_t /*speciesOption*/) {
 331   AliFMDAnaParameters* pars = AliFMDAnaParameters::Instance();
 332   TF1* fitFunc = 0;
 333   if(hEnergy->GetEntries() != 0) {
 334
 335     hEnergy->GetXaxis()->SetRangeUser(0.2,hEnergy->GetXaxis()->GetXmax());
 336
 337     if(pars->GetCollisionSystem() == 0)
 338       fitFunc =  new TF1("FMDfitFunc","landau",hEnergy->GetBinCenter(hEnergy->GetMaximumBin())-0.2,3);
 339     if(pars->GetCollisionSystem() == 1) {
 340       fitFunc = new TF1("FMDfitFunc",TripleLandau,hEnergy->GetBinCenter(hEnergy->GetMaximumBin())-0.2,5,5);
 341       fitFunc->SetParNames("constant","MPV","sigma","2-Mip weight","3-Mip weight");
 342       fitFunc->SetParameters(10,0.8,0.1,0.05,0.01);
 343       fitFunc->SetParLimits(1,0.6,1.2);
 344       fitFunc->SetParLimits(3,0,1);
 345       fitFunc->SetParLimits(4,0,1);
 346
 347     }
 348     hEnergy->Fit(fitFunc,"","",hEnergy->GetBinCenter(hEnergy->GetMaximumBin())-0.2,3);
 349
 350   }
 351   return fitFunc;
 352
 353 }
 354 //____________________________________________________________________
 355 //
 356 // EOF
 357 //