PWGHF/vertexingHF/macros/HFPtSpectrum.C

   1 #if !defined(__CINT__) || defined(__MAKECINT__)
   2 #include <Riostream.h>
   3 #include "TH1D.h"
   4 #include "TH1.h"
   5 #include "TH2F.h"
   6 #include "TNtuple.h"
   7 #include "TFile.h"
   8 #include "TGraphAsymmErrors.h"
   9 #include "TCanvas.h"
  10 #include "TROOT.h"
  11 #include "TStyle.h"
  12 #include "TLegend.h"
  13 #include "AliHFSystErr.h"
  14 #include "AliHFPtSpectrum.h"
  15 #endif
  16
  17 /* $Id$ */
  18
  19 //
  20 // Macro to use the AliHFPtSpectrum class
  21 //  to compute the feed-down corrections for heavy-flavor
  22 //
  23 //  Z.Conesa, September 2010 (zconesa@in2p3.fr)
  24 //
  25
  26
  27
  28 //
  29 // Macro execution parameters:
  30 //  0) filename with the theoretical predictions  (direct & feed-down)
  31 //  1) acceptance and reconstruction efficiencies file name (direct & feed-down)
  32 //  2) reconstructed spectra file name
  33 //  3) output file name
  34 //  4) Set the feed-down calculation option flag: knone=none, kfc=fc only, kNb=Nb only
  35 //  5-6) Set the luminosity: the number of events analyzed, and the cross-section of the sample [pb]
  36 //  7) Set whether the yield is for particle + anti-particles or only one of the 'charges'
  37 //  8) Set the centrality class
  38 //  9) Flag to decide if there is need to evaluate the dependence on the energy loss
  39 //
  40
  41 enum centrality{ kpp7, kpp276, k07half, kpPb0100, k010, k1020, k020, k2040, k2030, k3040, k4050, k3050, k5060, k4060, k6080, k4080, k80100 };
  42 enum BFDSubtrMethod { knone, kfc, kNb };
  43 enum RaavsEP {kPhiIntegrated, kInPlane, kOutOfPlane};
  44 enum rapidity{ kdefault, km01to01, k01to04, k04to07, k04to08 };
  45
  46 void HFPtSpectrum ( const char *mcfilename="FeedDownCorrectionMC.root",
  47                     const char *efffilename="Efficiencies.root",
  48                     const char *recofilename="Reconstructed.root", const char *recohistoname="hRawSpectrumD0",
  49                     const char *outfilename="HFPtSpectrum.root",
  50                     Int_t fdMethod=kNb, Double_t nevents=1.0, Double_t sigma=1.0, // sigma[pb]
  51                     Bool_t isParticlePlusAntiParticleYield=true, Int_t cc=kpp7, Bool_t PbPbEloss=false,
  52                     Int_t isRaavsEP=kPhiIntegrated,const char *epResolfile="",
  53                     Int_t rapiditySlice=kdefault) {
  54
  55
  56   gROOT->Macro("$ALICE_ROOT/PWGHF/vertexingHF/macros/LoadLibraries.C");
  57
  58   //  Set if calculation considers asymmetric uncertainties or not
  59   Bool_t asym = true;
  60
  61   // Set the meson and decay
  62   // (only D0 -> K pi, D+--> K pi pi & D* --> D0 pi & D+s -->KKpi implemented here)
  63   Bool_t isD0Kpi = false;
  64   Bool_t isDplusKpipi = false;
  65   Bool_t isDstarD0pi = false;
  66   Bool_t isDsKKpi = true;
  67   Bool_t isLctopKpi = false;
  68   if (isD0Kpi && isDplusKpipi && isDstarD0pi && isDsKKpi) {
  69     cout << "Sorry, can not deal with more than one correction at the same time"<<endl;
  70     return;
  71   }
  72
  73   Int_t option=3;
  74   if (fdMethod==kfc) option=1;
  75   else if (fdMethod==kNb) option=2;
  76   else if (fdMethod==knone) { option=0; asym=false; }
  77   else option=3;
  78
  79   if (option>2) {
  80     cout<< "Bad calculation option, should be <=2"<<endl;
  81     return;
  82   }
  83
  84
  85   //
  86   // Defining the Tab values for the given centrality class
  87   // https://twiki.cern.ch/twiki/bin/viewauth/ALICE/CentStudies
  88   //
  89   Double_t tab = 1., tabUnc = 0.;
  90   if ( cc == k07half ) {
  91     tab = 24.81; tabUnc = 0.8037;
  92   } else if ( cc == k010 ) {
  93     tab = 23.48; tabUnc = 0.97;
  94   } else if ( cc == k1020 ) {
  95     tab = 14.4318; tabUnc = 0.5733;
  96   } else if ( cc == k020 ) {
  97     tab = 18.93; tabUnc = 0.74;
  98   } else if ( cc == k2040 ) {
  99     tab = 6.86; tabUnc = 0.28;
 100   } else if ( cc == k2030 ) {
 101     tab = 8.73769; tabUnc = 0.370219;
 102   } else if ( cc == k3040 ) {
 103     tab = 5.02755; tabUnc = 0.22099;
 104   } else if ( cc == k4050 ) {
 105     tab = 2.68327; tabUnc = 0.137073;
 106   } else if ( cc == k3050 ) {
 107     tab = 3.87011; tabUnc = 0.183847;
 108   } else if ( cc == k4060 ) {
 109     tab = 2.00;  tabUnc= 0.11;
 110   } else if ( cc == k4080 ) {
 111     tab = 1.20451; tabUnc = 0.071843;
 112   } else if ( cc == k5060 ) {
 113     tab = 1.32884; tabUnc = 0.0929536;
 114   } else if ( cc == k6080 ) {
 115     tab = 0.419; tabUnc = 0.033;
 116   } else if ( cc == k80100 ){
 117     tab = 0.0690; tabUnc = 0.0062;
 118   }
 119
 120   // pPb Glauber (A. Toia)
 121   // https://twiki.cern.ch/twiki/bin/viewauth/ALICE/PACentStudies#Glauber_Calculations_with_sigma
 122   else if( cc == kpPb0100 ){
 123     tab = 0.098334; tabUnc = 0.0070679;
 124   }
 125   tab *= 1e-9; // to pass from mb^{-1} to pb^{-1}
 126   tabUnc *= 1e-9;
 127
 128
 129
 130   //
 131   // Get the histograms from the files
 132   //
 133   TH1D *hDirectMCpt=0;           // Input MC c-->D spectra
 134   TH1D *hFeedDownMCpt=0;         // Input MC b-->D spectra
 135   TH1D *hDirectMCptMax=0;        // Input MC maximum c-->D spectra
 136   TH1D *hDirectMCptMin=0;        // Input MC minimum c-->D spectra
 137   TH1D *hFeedDownMCptMax=0;      // Input MC maximum b-->D spectra
 138   TH1D *hFeedDownMCptMin=0;      // Input MC minimum b-->D spectra
 139   //  TGraphAsymmErrors *gPrediction=0; // Input MC c-->D spectra
 140   TH1D *hDirectEffpt=0;          // c-->D Acceptance and efficiency correction
 141   TH1D *hFeedDownEffpt=0;        // b-->D Acceptance and efficiency correction
 142   TH1D *hRECpt=0;                // all reconstructed D
 143
 144   //
 145   // Define/Get the input histograms
 146   //
 147   Int_t decay=0;
 148   TFile * mcfile = new TFile(mcfilename,"read");
 149   if (isD0Kpi){
 150     decay = 1;
 151     hDirectMCpt = (TH1D*)mcfile->Get("hD0Kpipred_central");
 152     hFeedDownMCpt = (TH1D*)mcfile->Get("hD0KpifromBpred_central_corr");
 153     hDirectMCptMax = (TH1D*)mcfile->Get("hD0Kpipred_max");
 154     hDirectMCptMin = (TH1D*)mcfile->Get("hD0Kpipred_min");
 155     hFeedDownMCptMax = (TH1D*)mcfile->Get("hD0KpifromBpred_max_corr");
 156     hFeedDownMCptMin = (TH1D*)mcfile->Get("hD0KpifromBpred_min_corr");
 157     //    gPrediction = (TGraphAsymmErrors*)mcfile->Get("D0Kpiprediction");
 158   }
 159   else if (isDplusKpipi){
 160     decay = 2;
 161     hDirectMCpt = (TH1D*)mcfile->Get("hDpluskpipipred_central");
 162     hFeedDownMCpt = (TH1D*)mcfile->Get("hDpluskpipifromBpred_central_corr");
 163     hDirectMCptMax = (TH1D*)mcfile->Get("hDpluskpipipred_max");
 164     hDirectMCptMin = (TH1D*)mcfile->Get("hDpluskpipipred_min");
 165     hFeedDownMCptMax = (TH1D*)mcfile->Get("hDpluskpipifromBpred_max_corr");
 166     hFeedDownMCptMin = (TH1D*)mcfile->Get("hDpluskpipifromBpred_min_corr");
 167     //    gPrediction = (TGraphAsymmErrors*)mcfile->Get("Dpluskpipiprediction");
 168   }
 169   else if(isDstarD0pi){
 170     decay = 3;
 171     hDirectMCpt = (TH1D*)mcfile->Get("hDstarD0pipred_central");
 172     hFeedDownMCpt = (TH1D*)mcfile->Get("hDstarD0pifromBpred_central_corr");
 173     hDirectMCptMax = (TH1D*)mcfile->Get("hDstarD0pipred_max");
 174     hDirectMCptMin = (TH1D*)mcfile->Get("hDstarD0pipred_min");
 175     hFeedDownMCptMax = (TH1D*)mcfile->Get("hDstarD0pifromBpred_max_corr");
 176     hFeedDownMCptMin = (TH1D*)mcfile->Get("hDstarD0pifromBpred_min_corr");
 177     //    gPrediction = (TGraphAsymmErrors*)mcfile->Get("DstarD0piprediction");
 178   }
 179   else if (isDsKKpi){
 180     decay = 4;
 181     hDirectMCpt = (TH1D*)mcfile->Get("hDsPhipitoKkpipred_central");
 182     hFeedDownMCpt = (TH1D*)mcfile->Get("hDsPhipitoKkpifromBpred_central_corr");
 183     hDirectMCptMax = (TH1D*)mcfile->Get("hDsPhipitoKkpipred_max");
 184     hDirectMCptMin = (TH1D*)mcfile->Get("hDsPhipitoKkpipred_min");
 185     hFeedDownMCptMax = (TH1D*)mcfile->Get("hDsPhipitoKkpifromBpred_max_corr");
 186     hFeedDownMCptMin = (TH1D*)mcfile->Get("hDsPhipitoKkpifromBpred_min_corr");
 187   }
 188   else if (isLctopKpi){
 189     decay = 5;
 190     hDirectMCpt = (TH1D*)mcfile->Get("hLcpkpipred_central");
 191     hFeedDownMCpt = (TH1D*)mcfile->Get("hLcpkpifromBpred_central_corr");
 192     hDirectMCptMax = (TH1D*)mcfile->Get("hLcpkpipred_max");
 193     hDirectMCptMin = (TH1D*)mcfile->Get("hLcpkpipred_min");
 194     hFeedDownMCptMax = (TH1D*)mcfile->Get("hLcpkpifromBpred_max_corr");
 195     hFeedDownMCptMin = (TH1D*)mcfile->Get("hLcpkpifromBpred_min_corr");
 196   }
 197   //
 198   hDirectMCpt->SetNameTitle("hDirectMCpt","direct MC spectra");
 199   hFeedDownMCpt->SetNameTitle("hFeedDownMCpt","feed-down MC spectra");
 200   hDirectMCptMax->SetNameTitle("hDirectMCptMax","max direct MC spectra");
 201   hDirectMCptMin->SetNameTitle("hDirectMCptMin","min direct MC spectra");
 202   hFeedDownMCptMax->SetNameTitle("hFeedDownMCptMax","max feed-down MC spectra");
 203   hFeedDownMCptMin->SetNameTitle("hFeedDownMCptMin","min feed-down MC spectra");
 204   //
 205   // Scale FONLL inputs if we do the analysis in y-slices
 206   //
 207   if(rapiditySlice!=kdefault){
 208     Double_t scaleFONLL = 1.0;
 209     if(rapiditySlice==km01to01) scaleFONLL = 0.2/1.0;
 210     else if (rapiditySlice==k01to04) scaleFONLL = 0.3/1.0;
 211     else if (rapiditySlice==k04to07) scaleFONLL = 0.1/1.0;
 212     else if (rapiditySlice==k04to08) scaleFONLL = 0.1/1.0;
 213     hDirectMCpt->Scale(scaleFONLL);
 214     hFeedDownMCpt->Scale(scaleFONLL);
 215     hDirectMCptMax->Scale(scaleFONLL);
 216     hDirectMCptMin->Scale(scaleFONLL);
 217     hFeedDownMCptMax->Scale(scaleFONLL);
 218     hFeedDownMCptMin->Scale(scaleFONLL);
 219   }
 220
 221   //
 222   //
 223   TFile * efffile = new TFile(efffilename,"read");
 224   hDirectEffpt = (TH1D*)efffile->Get("hEffD");
 225   hDirectEffpt->SetNameTitle("hDirectEffpt","direct acc x eff");
 226   hFeedDownEffpt = (TH1D*)efffile->Get("hEffB");
 227   hFeedDownEffpt->SetNameTitle("hFeedDownEffpt","feed-down acc x eff");
 228   //
 229   //
 230   TFile * recofile = new TFile(recofilename,"read");
 231   hRECpt = (TH1D*)recofile->Get(recohistoname);
 232   hRECpt->SetNameTitle("hRECpt","Reconstructed spectra");
 233
 234   //
 235   // Read the file of the EP resolution correction
 236   TFile *EPf;
 237   TH1D *hEPresolCorr;
 238   if(isRaavsEP>0.){
 239     EPf = new TFile(epResolfile,"read");
 240     if(isRaavsEP==kInPlane) hEPresolCorr = (TH1D*)EPf->Get("hCorrEPresol_InPlane");
 241     else if(isRaavsEP==kOutOfPlane) hEPresolCorr = (TH1D*)EPf->Get("hCorrEPresol_OutOfPlane");
 242     for(Int_t i=1; i<=hRECpt->GetNbinsX(); i++) {
 243       Double_t value = hRECpt->GetBinContent(i);
 244       Double_t error = hRECpt->GetBinError(i);
 245       Double_t pt = hRECpt->GetBinCenter(i);
 246       Int_t epbin = hEPresolCorr->FindBin( pt );
 247       Double_t epcorr = hEPresolCorr->GetBinContent( epbin );
 248       value = value*epcorr;
 249       error = error*epcorr;
 250       hRECpt->SetBinContent(i,value);
 251       hRECpt->SetBinError(i,error);
 252     }
 253   }
 254
 255   //
 256   // Define the output histograms
 257   //
 258   TFile *out = new TFile(outfilename,"recreate");
 259   //
 260   TH1D *histofc=0;
 261   TH1D *histofcMax=0;
 262   TH1D *histofcMin=0;
 263   TH1D *histoYieldCorr=0;
 264   TH1D *histoYieldCorrMax=0;
 265   TH1D *histoYieldCorrMin=0;
 266   TH1D *histoSigmaCorr=0;
 267   TH1D *histoSigmaCorrMax=0;
 268   TH1D *histoSigmaCorrMin=0;
 269   //
 270   TH2D *histofcRcb=0;
 271   TH1D *histofcRcb_px=0;
 272   TH2D *histoYieldCorrRcb=0;
 273   TH2D *histoSigmaCorrRcb=0;
 274   //
 275   TGraphAsymmErrors * gYieldCorr = 0;
 276   TGraphAsymmErrors * gSigmaCorr = 0;
 277   TGraphAsymmErrors * gFcExtreme = 0;
 278   TGraphAsymmErrors * gFcConservative = 0;
 279   TGraphAsymmErrors * gYieldCorrExtreme = 0;
 280   TGraphAsymmErrors * gSigmaCorrExtreme = 0;
 281   TGraphAsymmErrors * gYieldCorrConservative = 0;
 282   TGraphAsymmErrors * gSigmaCorrConservative = 0;
 283   //
 284   TNtuple * nSigma = 0;
 285
 286
 287   //
 288   // Main functionalities for the calculation
 289   //
 290
 291   // Define and set the basic option flags
 292   AliHFPtSpectrum * spectra = new AliHFPtSpectrum("AliHFPtSpectrum","AliHFPtSpectrum",option);
 293   spectra->SetFeedDownCalculationOption(option);
 294   spectra->SetComputeAsymmetricUncertainties(asym);
 295   // Set flag on whether to additional PbPb Eloss hypothesis have to be computed
 296   spectra->SetComputeElossHypothesis(PbPbEloss);
 297
 298   // Feed the input histograms
 299   //  reconstructed spectra
 300   cout << " Setting the reconstructed spectrum,";
 301   spectra->SetReconstructedSpectrum(hRECpt);
 302   // acceptance and efficiency corrections
 303   cout << " the efficiency,";
 304   spectra->SetAccEffCorrection(hDirectEffpt,hFeedDownEffpt);
 305   //    spectra->SetfIsStatUncEff(false);
 306   // option specific histos (theory)
 307   cout << " the theoretical spectra";
 308   if(option==1){
 309     spectra->SetMCptSpectra(hDirectMCpt,hFeedDownMCpt);
 310     if(asym) spectra->SetMCptDistributionsBounds(hDirectMCptMax,hDirectMCptMin,hFeedDownMCptMax,hFeedDownMCptMin);
 311   }
 312   else if(option==2){
 313     spectra->SetFeedDownMCptSpectra(hFeedDownMCpt);
 314     if(asym) spectra->SetFeedDownMCptDistributionsBounds(hFeedDownMCptMax,hFeedDownMCptMin);
 315   }
 316
 317   cout << " and the normalization" <<endl;
 318   // Set normalization factors (uncertainties set to 0. as example)
 319   spectra->SetNormalization(nevents,sigma);
 320   Double_t lumi = nevents / sigma ;
 321   Double_t lumiUnc = 0.04*lumi; // 10% uncertainty on the luminosity
 322   spectra->SetLuminosity(lumi,lumiUnc);
 323   Double_t effTrig = 1.0;
 324   spectra->SetTriggerEfficiency(effTrig,0.);
 325   if(isRaavsEP>0.) spectra->SetIsEventPlaneAnalysis(kTRUE);
 326
 327   // Set the global uncertainties on the efficiencies (in percent)
 328   Double_t globalEffUnc = 0.15;
 329   Double_t globalBCEffRatioUnc = 0.15;
 330   spectra->SetAccEffPercentageUncertainty(globalEffUnc,globalBCEffRatioUnc);
 331
 332   // Set if the yield is for particle+anti-particle or only one type
 333   spectra->SetIsParticlePlusAntiParticleYield(isParticlePlusAntiParticleYield);
 334
 335   // Set the Tab parameter and uncertainties
 336   if ( (cc != kpp7) && (cc != kpp276) ) {
 337     spectra->SetTabParameter(tab,tabUnc);
 338   }
 339
 340   // Do the calculations
 341   cout << " Doing the calculation... "<< endl;
 342   Double_t deltaY = 1.0;
 343   Double_t branchingRatioC = 1.0;
 344   Double_t branchingRatioBintoFinalDecay = 1.0; // this is relative to the input theoretical prediction
 345   spectra->ComputeHFPtSpectrum(deltaY,branchingRatioC,branchingRatioBintoFinalDecay);
 346   cout << "   ended the calculation, getting the histograms back " << endl;
 347
 348   // Set the systematics externally
 349   Bool_t combineFeedDown = true;
 350   AliHFSystErr *systematics = new AliHFSystErr();
 351   if( cc==kpp276 ) {
 352     systematics->SetIsLowEnergy(true);
 353   }
 354   else if ( cc == kpPb0100 ){
 355     systematics->SetCollisionType(0);
 356     cout <<endl<<" Beware pPb systematics not yet implemented, using pp at 7 TeV !!"<<endl<<endl;
 357   }
 358   //
 359   else if( cc!=kpp7 )  {
 360     systematics->SetCollisionType(1);
 361     if ( cc == k07half ) systematics->SetCentrality("07half");
 362     else if ( cc == k010 )  systematics->SetCentrality("010");
 363     else if ( cc == k1020 )  systematics->SetCentrality("1020");
 364     else if ( cc == k020 )  systematics->SetCentrality("020");
 365     else if ( cc == k2040 || cc == k2030 || cc == k3040 ) {
 366       systematics->SetCentrality("2040");
 367       systematics->SetIsPbPb2010EnergyScan(true);
 368     }
 369     else if ( cc == k3050 ) {
 370       if (isRaavsEP == kPhiIntegrated) systematics->SetCentrality("4080");
 371       else if (isRaavsEP == kInPlane) systematics->SetCentrality("3050InPlane");
 372       else if (isRaavsEP == kOutOfPlane) systematics->SetCentrality("3050OutOfPlane");
 373     }
 374     else if ( cc == k4060 || cc == k4050 || cc == k5060 )  systematics->SetCentrality("4060");
 375     else if ( cc == k6080 )  systematics->SetCentrality("6080");
 376     else if ( cc == k4080 ) systematics->SetCentrality("4080");
 377     else {
 378       cout << " Systematics not yet implemented " << endl;
 379       return;
 380     }
 381   } else { systematics->SetCollisionType(0); }
 382   //
 383   systematics->Init(decay);
 384   spectra->ComputeSystUncertainties(systematics,combineFeedDown);
 385
 386   //
 387   // Get the output histograms
 388   //
 389   // the corrected yield and cross-section
 390   histoYieldCorr = (TH1D*)spectra->GetHistoFeedDownCorrectedSpectrum();
 391   histoSigmaCorr = (TH1D*)spectra->GetHistoCrossSectionFromYieldSpectrum();
 392   histoYieldCorrMax = (TH1D*)spectra->GetHistoUpperLimitFeedDownCorrectedSpectrum();
 393   histoYieldCorrMin = (TH1D*)spectra->GetHistoLowerLimitFeedDownCorrectedSpectrum();
 394   histoSigmaCorrMax = (TH1D*)spectra->GetHistoUpperLimitCrossSectionFromYieldSpectrum();
 395   histoSigmaCorrMin = (TH1D*)spectra->GetHistoLowerLimitCrossSectionFromYieldSpectrum();
 396   histoYieldCorr->SetNameTitle("histoYieldCorr","corrected yield");
 397   histoYieldCorrMax->SetNameTitle("histoYieldCorrMax","max corrected yield");
 398   histoYieldCorrMin->SetNameTitle("histoYieldCorrMin","min corrected yield");
 399   histoSigmaCorr->SetNameTitle("histoSigmaCorr","corrected invariant cross-section");
 400   histoSigmaCorrMax->SetNameTitle("histoSigmaCorrMax","max corrected invariant cross-section");
 401   histoSigmaCorrMin->SetNameTitle("histoSigmaCorrMin","min corrected invariant cross-section");
 402   // the efficiencies
 403   if(!hDirectEffpt) hDirectEffpt = (TH1D*)spectra->GetDirectAccEffCorrection();
 404   if(!hFeedDownEffpt) hFeedDownEffpt = (TH1D*)spectra->GetFeedDownAccEffCorrection();
 405   // Get the PbPb Eloss hypothesis histograms
 406   if(PbPbEloss){
 407     histofcRcb = spectra->GetHistoFeedDownCorrectionFcVsEloss();
 408     histoYieldCorrRcb = spectra->GetHistoFeedDownCorrectedSpectrumVsEloss();
 409     histoSigmaCorrRcb = spectra->GetHistoCrossSectionFromYieldSpectrumVsEloss();
 410     histofcRcb->SetName("histofcRcb");
 411     histoYieldCorrRcb->SetName("histoYieldCorrRcb");
 412     histoSigmaCorrRcb->SetName("histoSigmaCorrRcb");
 413   }
 414
 415   // Get & Rename the TGraphs
 416   gSigmaCorr = spectra->GetCrossSectionFromYieldSpectrum();
 417   gYieldCorr = spectra->GetFeedDownCorrectedSpectrum();
 418   if (asym) {
 419     gSigmaCorrExtreme = spectra->GetCrossSectionFromYieldSpectrumExtreme();
 420     gYieldCorrExtreme = spectra->GetFeedDownCorrectedSpectrumExtreme();
 421     gSigmaCorrConservative = spectra->GetCrossSectionFromYieldSpectrumConservative();
 422     gYieldCorrConservative = spectra->GetFeedDownCorrectedSpectrumConservative();
 423   }
 424
 425   // Get & Rename the TGraphs
 426   if (option==0){
 427     gYieldCorr->SetNameTitle("gYieldCorr","gYieldCorr (uncorr)");
 428     gSigmaCorr->SetNameTitle("gSigmaCorr","gSigmaCorr (uncorr)");
 429   }
 430   if (option==1){
 431     // fc histos
 432     histofc = (TH1D*)spectra->GetHistoFeedDownCorrectionFc();
 433     histofcMax = (TH1D*)spectra->GetHistoUpperLimitFeedDownCorrectionFc();
 434     histofcMin = (TH1D*)spectra->GetHistoLowerLimitFeedDownCorrectionFc();
 435     histofc->SetNameTitle("histofc","fc correction factor");
 436     histofcMax->SetNameTitle("histofcMax","max fc correction factor");
 437     histofcMin->SetNameTitle("histofcMin","min fc correction factor");
 438     if (asym) {
 439       gYieldCorr->SetNameTitle("gYieldCorr","gYieldCorr (by fc)");
 440       gSigmaCorr->SetNameTitle("gSigmaCorr","gSigmaCorr (by fc)");
 441       gFcExtreme = spectra->GetFeedDownCorrectionFcExtreme();
 442       gFcExtreme->SetNameTitle("gFcExtreme","gFcExtreme");
 443       gYieldCorrExtreme->SetNameTitle("gYieldCorrExtreme","Extreme gYieldCorr (by fc)");
 444       gSigmaCorrExtreme->SetNameTitle("gSigmaCorrExtreme","Extreme gSigmaCorr (by fc)");
 445       gFcConservative = spectra->GetFeedDownCorrectionFcConservative();
 446       gFcConservative->SetNameTitle("gFcConservative","gFcConservative");
 447       gYieldCorrConservative->SetNameTitle("gYieldCorrConservative","Conservative gYieldCorr (by fc)");
 448       gSigmaCorrConservative->SetNameTitle("gSigmaCorrConservative","Conservative gSigmaCorr (by fc)");
 449     }
 450   }
 451   if (option==2 && asym) {
 452     gYieldCorr->SetNameTitle("gYieldCorr","gYieldCorr (by Nb)");
 453     gSigmaCorr->SetNameTitle("gSigmaCorr","gSigmaCorr (by Nb)");
 454     gYieldCorrExtreme->SetNameTitle("gYieldCorrExtreme","Extreme gYieldCorr (by Nb)");
 455     gSigmaCorrExtreme->SetNameTitle("gSigmaCorrExtreme","Extreme gSigmaCorr (by Nb)");
 456     gYieldCorrConservative->SetNameTitle("gYieldCorrConservative","Conservative gYieldCorr (by Nb)");
 457     gSigmaCorrConservative->SetNameTitle("gSigmaCorrConservative","Conservative gSigmaCorr (by Nb)");
 458     gFcConservative = spectra->GetFeedDownCorrectionFcConservative();
 459     gFcConservative->SetNameTitle("gFcConservative","gFcConservative");
 460   }
 461
 462   if(PbPbEloss){
 463     nSigma = spectra->GetNtupleCrossSectionVsEloss();
 464   }
 465
 466   //
 467   // Now, plot the results ! :)
 468   //
 469
 470   gROOT->SetStyle("Plain");
 471
 472   cout << " Drawing the results ! " << endl;
 473
 474   // control plots
 475   if (option==1) {
 476
 477     TCanvas *ceff = new TCanvas("ceff","efficiency drawing");
 478     ceff->Divide(1,2);
 479     ceff->cd(1);
 480     hDirectEffpt->Draw();
 481     ceff->cd(2);
 482     hFeedDownEffpt->Draw();
 483     ceff->Update();
 484
 485     TCanvas *cTheoryRebin = new TCanvas("cTheoryRebin","control the theoretical spectra rebin");
 486     cTheoryRebin->Divide(1,2);
 487     cTheoryRebin->cd(1);
 488     hDirectMCpt->Draw("");
 489     TH1D *hDirectMCptRebin = (TH1D*)spectra->GetDirectTheoreticalSpectrum();
 490     hDirectMCptRebin->SetLineColor(2);
 491     hDirectMCptRebin->Draw("same");
 492     cTheoryRebin->cd(2);
 493     hFeedDownMCpt->Draw("");
 494     TH1D *hFeedDownRebin = (TH1D*)spectra->GetFeedDownTheoreticalSpectrum();
 495     hFeedDownRebin->SetLineColor(2);
 496     hFeedDownRebin->Draw("same");
 497     cTheoryRebin->Update();
 498
 499     TCanvas *cTheoryRebinLimits = new TCanvas("cTheoryRebinLimits","control the theoretical spectra limits rebin");
 500     cTheoryRebinLimits->Divide(1,2);
 501     cTheoryRebinLimits->cd(1);
 502     hDirectMCptMax->Draw("");
 503     TH1D *hDirectMCptMaxRebin = (TH1D*)spectra->GetDirectTheoreticalUpperLimitSpectrum();
 504     hDirectMCptMaxRebin->SetLineColor(2);
 505     hDirectMCptMaxRebin->Draw("same");
 506     hDirectMCptMin->Draw("same");
 507     TH1D *hDirectMCptMinRebin = (TH1D*)spectra->GetDirectTheoreticalLowerLimitSpectrum();
 508     hDirectMCptMinRebin->SetLineColor(2);
 509     hDirectMCptMinRebin->Draw("same");
 510     cTheoryRebinLimits->cd(2);
 511     hFeedDownMCptMax->Draw("");
 512     TH1D *hFeedDownMaxRebin = (TH1D*)spectra->GetFeedDownTheoreticalUpperLimitSpectrum();
 513     hFeedDownMaxRebin->SetLineColor(2);
 514     hFeedDownMaxRebin->Draw("same");
 515     hFeedDownMCptMin->Draw("same");
 516     TH1D *hFeedDownMinRebin = (TH1D*)spectra->GetFeedDownTheoreticalLowerLimitSpectrum();
 517     hFeedDownMinRebin->SetLineColor(2);
 518     hFeedDownMinRebin->Draw("same");
 519     cTheoryRebinLimits->Update();
 520   }
 521
 522   if (option==1) {
 523
 524     TCanvas * cfc = new TCanvas("cfc","Fc");
 525     histofcMax->Draw("c");
 526     histofc->Draw("csame");
 527     histofcMin->Draw("csame");
 528     cfc->Update();
 529
 530     if (asym) {
 531       TH2F *histofcDraw= new TH2F("histofcDraw","histofc (for drawing)",100,0,33.25,100,0.01,1.25);
 532       histofcDraw->SetStats(0);
 533       histofcDraw->GetXaxis()->SetTitle("p_{T}  [GeV]");
 534       histofcDraw ->GetXaxis()->SetTitleSize(0.05);
 535       histofcDraw->GetXaxis()->SetTitleOffset(0.95);
 536       histofcDraw->GetYaxis()->SetTitle(" fc ");
 537       histofcDraw->GetYaxis()->SetTitleSize(0.05);
 538
 539       if (gFcExtreme){
 540
 541 //      for(Int_t item=0; item<gSigmaCorr->GetN(); item++){
 542 //        Double_t center=0., value=0.;
 543 //        gFcExtreme->GetPoint(item,center,value);
 544 //        Double_t highunc = gFcExtreme->GetErrorYhigh(item) / value ;
 545 //        Double_t lowunc = gFcExtreme->GetErrorYlow(item) / value ;
 546 //        cout << "Fc extreme: i=" << item << ", center=" << center <<", value=" << value << " high unc=" << highunc*100 << "%, low unc=" << lowunc*100 << "%"<<endl;
 547 //      }
 548 //      for(Int_t item=0; item<gSigmaCorr->GetN(); item++){
 549 //        Double_t center=0., value=0.;
 550 //        gFcConservative->GetPoint(item,center,value);
 551 //        Double_t highunc = gFcConservative->GetErrorYhigh(item) / value ;
 552 //        Double_t lowunc = gFcConservative->GetErrorYlow(item) / value ;
 553 //        cout << "Fc conservative: i=" << item << ", center=" << center <<", value=" << value << " high unc=" << highunc*100 << "%, low unc=" << lowunc*100 << "%"<<endl;
 554 //      }
 555         TCanvas *cfcExtreme = new TCanvas("cfcExtreme","Extreme Asymmetric fc (TGraphAsymmErr)");
 556         gFcExtreme->SetFillStyle(3006);
 557         gFcExtreme->SetLineWidth(3);
 558         gFcExtreme->SetMarkerStyle(20);
 559         gFcExtreme->SetFillColor(2);
 560         histofcDraw->Draw();
 561         gFcExtreme->Draw("3same");
 562
 563         if(gFcConservative){
 564           gFcConservative->SetFillStyle(3007);
 565           gFcConservative->SetFillColor(4);
 566           gFcConservative->Draw("3same");
 567         }
 568
 569         cfcExtreme->Update();
 570       }
 571     }
 572
 573   }
 574
 575   //
 576   // Drawing the results (the raw-reconstructed, the expected, and the corrected spectra)
 577   //
 578   TCanvas * cresult = new TCanvas("cresult","corrected yields & sigma");
 579   hDirectMCpt->SetMarkerStyle(20);
 580   hDirectMCpt->SetMarkerColor(4);
 581   hDirectMCpt->Draw("p");
 582   histoSigmaCorr->SetMarkerStyle(21);
 583   histoSigmaCorr->SetMarkerColor(2);
 584   histoSigmaCorr->Draw("psame");
 585   histoYieldCorr->SetMarkerStyle(22);
 586   histoYieldCorr->SetMarkerColor(6);
 587   histoYieldCorr->Draw("psame");
 588   hRECpt->SetMarkerStyle(23);
 589   hRECpt->SetMarkerColor(3);
 590   hRECpt->Draw("psame");
 591   cresult->SetLogy();
 592   cresult->Update();
 593
 594   TCanvas * cresult2 = new TCanvas("cresult2","corrected yield & sigma");
 595   histoSigmaCorr->SetMarkerStyle(21);
 596   histoSigmaCorr->SetMarkerColor(2);
 597   histoSigmaCorr->Draw("p");
 598   histoYieldCorr->SetMarkerStyle(22);
 599   histoYieldCorr->SetMarkerColor(6);
 600   histoYieldCorr->Draw("psame");
 601   hRECpt->SetMarkerStyle(23);
 602   hRECpt->SetMarkerColor(3);
 603   hRECpt->Draw("psame");
 604   cresult2->SetLogy();
 605   cresult2->Update();
 606
 607
 608   if (asym) {
 609
 610     TH2F *histoDraw = new TH2F("histoDraw","histo (for drawing)",100,0,33.25,100,50.,1e7);
 611     float max = 1.1*gYieldCorr->GetMaximum();
 612     histoDraw->SetAxisRange(0.1,max,"Y");
 613     histoDraw->SetStats(0);
 614     histoDraw->GetXaxis()->SetTitle("p_{T}  [GeV]");
 615     histoDraw->GetXaxis()->SetTitleSize(0.05);
 616     histoDraw->GetXaxis()->SetTitleOffset(0.95);
 617     histoDraw->GetYaxis()->SetTitle("#frac{d#N}{dp_{T}} |_{|y|<1} [L & trigger uncorr]");
 618     histoDraw->GetYaxis()->SetTitleSize(0.05);
 619     TCanvas * cyieldAsym = new TCanvas("cyieldAsym","Asymmetric corrected yield (TGraphAsymmErr)");
 620     gYieldCorr->SetFillStyle(3001);
 621     gYieldCorr->SetLineWidth(3);
 622     gYieldCorr->SetMarkerStyle(20);
 623     gYieldCorr->SetFillColor(3);
 624     histoDraw->Draw();
 625     gYieldCorr->Draw("3LPsame");
 626     gYieldCorr->Draw("Xsame");
 627     cyieldAsym->SetLogy();
 628     cyieldAsym->Update();
 629
 630     TCanvas * cyieldExtreme = new TCanvas("cyieldExtreme","Extreme Asymmetric corrected yield (TGraphAsymmErr)");
 631     histoYieldCorr->Draw();
 632     gYieldCorrExtreme->SetFillStyle(3002);
 633     gYieldCorrExtreme->SetLineWidth(3);
 634     gYieldCorrExtreme->SetMarkerStyle(20);
 635     gYieldCorrExtreme->SetFillColor(2);
 636     histoYieldCorr->Draw();
 637     gYieldCorr->Draw("3same");
 638     gYieldCorrExtreme->Draw("3same");
 639     cyieldExtreme->SetLogy();
 640     cyieldExtreme->Update();
 641
 642     TH2F *histo2Draw = new TH2F("histo2Draw","histo2 (for drawing)",100,0,33.25,100,50.,1e9);
 643     max = 1.1*gSigmaCorr->GetMaximum();
 644     histo2Draw->SetAxisRange(0.1,max,"Y");
 645     histo2Draw->SetStats(0);
 646     histo2Draw->GetXaxis()->SetTitle("p_{T}  [GeV]");
 647     histo2Draw->GetXaxis()->SetTitleSize(0.05);
 648     histo2Draw->GetXaxis()->SetTitleOffset(0.95);
 649     histo2Draw->GetYaxis()->SetTitle("#frac{1}{BR} #times #frac{d#sigma}{dp_{T}} |_{|y|<1}");
 650     histo2Draw->GetYaxis()->SetTitleSize(0.05);
 651     TCanvas * csigmaAsym = new TCanvas("csigmaAsym","Asymmetric corrected sigma (TGraphAsymmErr)");
 652     gSigmaCorr->SetFillStyle(3001);
 653     gSigmaCorr->SetLineWidth(3);
 654     gSigmaCorr->SetMarkerStyle(21);
 655     gSigmaCorr->SetFillColor(3);
 656     histo2Draw->Draw();
 657     gSigmaCorr->Draw("3LPsame");
 658     gSigmaCorr->Draw("Xsame");
 659     csigmaAsym->SetLogy();
 660     csigmaAsym->Update();
 661
 662 //     cout << endl <<" Sytematics (stat approach) " <<endl;
 663 //     for(Int_t item=0; item<gSigmaCorr->GetN(); item++){
 664 //       Double_t center=0., value=0.;
 665 //       gSigmaCorr->GetPoint(item,center,value);
 666 //       Double_t highunc = gSigmaCorr->GetErrorYhigh(item) / value ;
 667 //       Double_t lowunc = gSigmaCorr->GetErrorYlow(item) / value ;
 668 //       cout << "Sigma syst (stat), i=" << item << ", center=" << center <<", value=" << value << " high unc=" << highunc*100 << "%, low unc=" << lowunc*100 << "%"<<endl;
 669 //     }
 670
 671     TCanvas * csigmaExtreme = new TCanvas("csigmaExtreme","Asymmetric extreme corrected sigma (TGraphAsymmErr)");
 672     histoSigmaCorr->Draw();
 673     gSigmaCorr->Draw("3Psame");
 674     gSigmaCorrExtreme->SetFillStyle(3002);
 675     gSigmaCorrExtreme->SetLineWidth(3);
 676     gSigmaCorrExtreme->SetMarkerStyle(21);
 677     gSigmaCorrExtreme->SetFillColor(2);
 678     gSigmaCorrExtreme->Draw("3Psame");
 679     csigmaExtreme->SetLogy();
 680     csigmaExtreme->Update();
 681
 682 //     cout << endl << " Sytematics (Extreme approach)" <<endl;
 683 //     for(Int_t item=0; item<gSigmaCorrExtreme->GetN(); item++){
 684 //       Double_t center=0., value=0.;
 685 //       gSigmaCorrExtreme->GetPoint(item,center,value);
 686 //       Double_t highunc = gSigmaCorrExtreme->GetErrorYhigh(item) / value ;
 687 //       Double_t lowunc = gSigmaCorrExtreme->GetErrorYlow(item) / value ;
 688 //       cout << "Sigma syst (extreme) i=" << item << ", center=" << center <<", value=" << value << " high unc=" << highunc*100 << "%, low unc=" << lowunc*100 << "%"<<endl;
 689 //     }
 690
 691 //     cout << endl << " Sytematics (Conservative approach)" <<endl;
 692 //     for(Int_t item=0; item<gSigmaCorrConservative->GetN(); item++){
 693 //       Double_t center=0., value=0.;
 694 //       gSigmaCorrConservative->GetPoint(item,center,value);
 695 //       Double_t highunc = gSigmaCorrConservative->GetErrorYhigh(item) / value ;
 696 //       Double_t lowunc = gSigmaCorrConservative->GetErrorYlow(item) / value ;
 697 //       cout << "Sigma syst (conservative) i=" << item << ", center=" << center <<", value=" << value << " high unc=" << highunc*100 << "%, low unc=" << lowunc*100 << "%"<<endl;
 698 //     }
 699
 700  }
 701
 702   // Draw the PbPb Eloss hypothesis histograms
 703   if(PbPbEloss){
 704     AliHFPtSpectrum *CalcBins=NULL;
 705     gStyle->SetPalette(1);
 706     TCanvas *canvasfcRcb = new TCanvas("canvasfcRcb","fc vs pt vs Rcb");
 707     //    histofcRcb->Draw("cont4z");
 708     histofcRcb->Draw("colz");
 709     canvasfcRcb->Update();
 710     canvasfcRcb->cd(2);
 711     TCanvas *canvasfcRcb1 = new TCanvas("canvasfcRcb1","fc vs pt vs Rcb=1");
 712     histofcRcb_px = (TH1D*)histofcRcb->ProjectionX("histofcRcb_px",40,40);
 713     histofcRcb_px->SetLineColor(2);
 714     if (option==1) {
 715       histofc->Draw();
 716       histofcRcb_px->Draw("same");
 717     } else histofcRcb_px->Draw("");
 718     canvasfcRcb1->Update();
 719     TCanvas *canvasfcRcb2 = new TCanvas("canvasfcRcb2","fc vs pt vs Rcb fixed Rcb");
 720     Int_t bin0 = CalcBins->FindTH2YBin(histofcRcb,0.25);
 721     Int_t bin1 = CalcBins->FindTH2YBin(histofcRcb,0.5);
 722     Int_t bin2 = CalcBins->FindTH2YBin(histofcRcb,1.0);
 723     Int_t bin3 = CalcBins->FindTH2YBin(histofcRcb,1.5);
 724     Int_t bin4 = CalcBins->FindTH2YBin(histofcRcb,2.0);
 725     Int_t bin5 = CalcBins->FindTH2YBin(histofcRcb,3.0);
 726     Int_t bin6 = CalcBins->FindTH2YBin(histofcRcb,4.0);
 727     TH1D * histofcRcb_px0a = (TH1D*)histofcRcb->ProjectionX("histofcRcb_px0a",bin0,bin0);
 728     TH1D * histofcRcb_px0 = (TH1D*)histofcRcb->ProjectionX("histofcRcb_px0",bin1,bin1);
 729     TH1D * histofcRcb_px1 = (TH1D*)histofcRcb->ProjectionX("histofcRcb_px1",bin2,bin2);
 730     TH1D * histofcRcb_px2 = (TH1D*)histofcRcb->ProjectionX("histofcRcb_px2",bin3,bin3);
 731     TH1D * histofcRcb_px3 = (TH1D*)histofcRcb->ProjectionX("histofcRcb_px3",bin4,bin4);
 732     TH1D * histofcRcb_px4 = (TH1D*)histofcRcb->ProjectionX("histofcRcb_px4",bin5,bin5);
 733     TH1D * histofcRcb_px5 = (TH1D*)histofcRcb->ProjectionX("histofcRcb_px5",bin6,bin6);
 734     if (option==1) {
 735       histofc->Draw();
 736       //      histofcRcb_px->Draw("same");
 737     } else {
 738       //      histofcRcb_px->Draw("");
 739       histofcRcb_px0a->SetLineColor(2);
 740       histofcRcb_px0a->Draw("");
 741     }
 742     histofcRcb_px0a->SetLineColor(2);
 743     histofcRcb_px0a->Draw("same");
 744     histofcRcb_px0->SetLineColor(4);
 745     histofcRcb_px0->Draw("same");
 746     histofcRcb_px1->SetLineColor(3);
 747     histofcRcb_px1->Draw("same");
 748     histofcRcb_px2->SetLineColor(kCyan);
 749     histofcRcb_px2->Draw("same");
 750     histofcRcb_px3->SetLineColor(kMagenta+1);
 751     histofcRcb_px3->Draw("same");
 752     histofcRcb_px4->SetLineColor(kOrange+7);
 753     histofcRcb_px4->Draw("same");
 754     histofcRcb_px5->SetLineColor(kGreen+3);
 755     histofcRcb_px5->Draw("same");
 756     TLegend *legrcc = new TLegend(0.8,0.8,0.95,0.9);
 757     legrcc->SetFillColor(0);
 758     if (option==1) {
 759       legrcc->AddEntry(histofcRcb_px0a,"Rc/b=0.25","l");
 760       legrcc->AddEntry(histofcRcb_px0,"Rc/b=0.5","l");
 761       legrcc->AddEntry(histofcRcb_px1,"Rc/b=1.0","l");
 762       legrcc->AddEntry(histofcRcb_px2,"Rc/b=1.5","l");
 763       legrcc->AddEntry(histofcRcb_px3,"Rc/b=2.0","l");
 764       legrcc->AddEntry(histofcRcb_px4,"Rc/b=3.0","l");
 765       legrcc->AddEntry(histofcRcb_px5,"Rc/b=4.0","l");
 766     }else{
 767       legrcc->AddEntry(histofcRcb_px0a,"Rb=0.25","l");
 768       legrcc->AddEntry(histofcRcb_px0,"Rb=0.5","l");
 769       legrcc->AddEntry(histofcRcb_px1,"Rb=1.0","l");
 770       legrcc->AddEntry(histofcRcb_px2,"Rb=1.5","l");
 771       legrcc->AddEntry(histofcRcb_px3,"Rb=2.0","l");
 772       legrcc->AddEntry(histofcRcb_px4,"Rb=3.0","l");
 773       legrcc->AddEntry(histofcRcb_px5,"Rb=4.0","l");
 774     }
 775     legrcc->Draw();
 776     canvasfcRcb2->Update();
 777     TCanvas *canvasYRcb = new TCanvas("canvasYRcb","corrected yield vs pt vs Rcb");
 778     histoYieldCorrRcb->Draw("cont4z");
 779     canvasYRcb->Update();
 780     TCanvas *canvasSRcb = new TCanvas("canvasSRcb","sigma vs pt vs Rcb");
 781     histoSigmaCorrRcb->Draw("cont4z");
 782     canvasSRcb->Update();
 783     TCanvas *canvasSRcb1 = new TCanvas("canvasSRcb1","sigma vs pt vs Rcb fixed Rcb");
 784     TH1D * histoSigmaCorrRcb_px0a = (TH1D*)histoSigmaCorrRcb->ProjectionX("histoSigmaCorrRcb_px0a",bin0,bin0);
 785     TH1D * histoSigmaCorrRcb_px0 = (TH1D*)histoSigmaCorrRcb->ProjectionX("histoSigmaCorrRcb_px0",bin1,bin1);
 786     TH1D * histoSigmaCorrRcb_px1 = (TH1D*)histoSigmaCorrRcb->ProjectionX("histoSigmaCorrRcb_px1",bin2,bin2);
 787     TH1D * histoSigmaCorrRcb_px2 = (TH1D*)histoSigmaCorrRcb->ProjectionX("histoSigmaCorrRcb_px2",bin3,bin3);
 788     TH1D * histoSigmaCorrRcb_px3 = (TH1D*)histoSigmaCorrRcb->ProjectionX("histoSigmaCorrRcb_px3",bin4,bin4);
 789     TH1D * histoSigmaCorrRcb_px4 = (TH1D*)histoSigmaCorrRcb->ProjectionX("histoSigmaCorrRcb_px4",bin5,bin5);
 790     TH1D * histoSigmaCorrRcb_px5 = (TH1D*)histoSigmaCorrRcb->ProjectionX("histoSigmaCorrRcb_px5",bin6,bin6);
 791     histoSigmaCorr->Draw();
 792     histoSigmaCorrRcb_px0a->SetLineColor(2);
 793     histoSigmaCorrRcb_px0a->Draw("hsame");
 794     histoSigmaCorrRcb_px0->SetLineColor(4);
 795     histoSigmaCorrRcb_px0->Draw("hsame");
 796     histoSigmaCorrRcb_px1->SetLineColor(3);
 797     histoSigmaCorrRcb_px1->Draw("hsame");
 798     histoSigmaCorrRcb_px2->SetLineColor(kCyan);
 799     histoSigmaCorrRcb_px2->Draw("hsame");
 800     histoSigmaCorrRcb_px3->SetLineColor(kMagenta+1);
 801     histoSigmaCorrRcb_px3->Draw("hsame");
 802     histoSigmaCorrRcb_px4->SetLineColor(kOrange+7);
 803     histoSigmaCorrRcb_px4->Draw("same");
 804     histoSigmaCorrRcb_px5->SetLineColor(kGreen+3);
 805     histoSigmaCorrRcb_px5->Draw("same");
 806     TLegend *legrcb = new TLegend(0.8,0.8,0.95,0.9);
 807     legrcb->SetFillColor(0);
 808     if (option==1) {
 809       legrcb->AddEntry(histoSigmaCorrRcb_px0a,"Rc/b=0.25","l");
 810       legrcb->AddEntry(histoSigmaCorrRcb_px0,"Rc/b=0.5","l");
 811       legrcb->AddEntry(histoSigmaCorrRcb_px1,"Rc/b=1.0","l");
 812       legrcb->AddEntry(histoSigmaCorrRcb_px2,"Rc/b=1.5","l");
 813       legrcb->AddEntry(histoSigmaCorrRcb_px3,"Rc/b=2.0","l");
 814       legrcb->AddEntry(histoSigmaCorrRcb_px4,"Rc/b=3.0","l");
 815       legrcb->AddEntry(histoSigmaCorrRcb_px5,"Rc/b=4.0","l");
 816     }else{
 817       legrcb->AddEntry(histoSigmaCorrRcb_px0a,"Rb=0.25","l");
 818       legrcb->AddEntry(histoSigmaCorrRcb_px0,"Rb=0.5","l");
 819       legrcb->AddEntry(histoSigmaCorrRcb_px1,"Rb=1.0","l");
 820       legrcb->AddEntry(histoSigmaCorrRcb_px2,"Rb=1.5","l");
 821       legrcb->AddEntry(histoSigmaCorrRcb_px3,"Rb=2.0","l");
 822       legrcb->AddEntry(histoSigmaCorrRcb_px4,"Rb=3.0","l");
 823       legrcb->AddEntry(histoSigmaCorrRcb_px5,"Rb=4.0","l");
 824     }
 825     legrcb->Draw();
 826     canvasSRcb1->Update();
 827   }
 828
 829
 830   //
 831   // Write the histograms to the output file
 832   //
 833   cout << " Saving the results ! " << endl<< endl;
 834
 835   out->cd();
 836   //
 837   hDirectMCpt->Write();        hFeedDownMCpt->Write();
 838   hDirectMCptMax->Write();     hDirectMCptMin->Write();
 839   hFeedDownMCptMax->Write();   hFeedDownMCptMin->Write();
 840   if(hDirectEffpt) hDirectEffpt->Write();        if(hFeedDownEffpt) hFeedDownEffpt->Write();
 841   hRECpt->Write();
 842   //
 843   histoYieldCorr->Write();
 844   histoYieldCorrMax->Write();     histoYieldCorrMin->Write();
 845   histoSigmaCorr->Write();
 846   histoSigmaCorrMax->Write();     histoSigmaCorrMin->Write();
 847
 848   if(PbPbEloss){
 849     histofcRcb->Write();    histofcRcb_px->Write();
 850     histoYieldCorrRcb->Write();
 851     histoSigmaCorrRcb->Write();
 852     nSigma->Write();
 853   }
 854
 855   gYieldCorr->Write();
 856   gSigmaCorr->Write();
 857   if(asym){
 858     if(gYieldCorrExtreme) gYieldCorrExtreme->Write();
 859     if(gSigmaCorrExtreme) gSigmaCorrExtreme->Write();
 860     if(gYieldCorrConservative) gYieldCorrConservative->Write();
 861     if(gSigmaCorrConservative) gSigmaCorrConservative->Write();
 862     if(asym && gFcConservative) gFcConservative->Write();
 863   }
 864
 865   if(option==1){
 866     histofc->Write();
 867     histofcMax->Write();     histofcMin->Write();
 868     if(asym && gFcExtreme) gFcExtreme->Write();
 869   }
 870
 871
 872   TH1D * hStatUncEffcSigma = spectra->GetDirectStatEffUncOnSigma();
 873   TH1D * hStatUncEffbSigma = spectra->GetFeedDownStatEffUncOnSigma();
 874   hStatUncEffcSigma->Write();
 875   hStatUncEffbSigma->Write();
 876   if(option!=0){
 877     TH1D * hStatUncEffcFD = spectra->GetDirectStatEffUncOnFc();
 878     TH1D * hStatUncEffbFD = spectra->GetFeedDownStatEffUncOnFc();
 879     hStatUncEffcFD->Write();
 880     hStatUncEffbFD->Write();
 881   }
 882
 883   // Draw the cross-section
 884   //  spectra->DrawSpectrum(gPrediction);
 885
 886   //  out->Close();
 887
 888 }