2 // This class calculates the exclusive charged particle density
3 // in each for the 5 FMD rings.
6 // - 5 RingHistos objects - each with a number of vertex dependent
7 // 2D histograms of the inclusive charge particle density
10 // - 5 RingHistos objects - each with a number of vertex dependent
11 // 2D histograms of the exclusive charge particle density
14 // - AliFMDCorrSecondaryMap;
15 // - AliFMDCorrVertexBias
16 // - AliFMDCorrMergingEfficiency
18 #include "AliFMDMCCorrector.h"
19 #include <AliESDFMD.h>
23 #include "AliForwardCorrectionManager.h"
27 #include <TProfile2D.h>
29 ClassImp(AliFMDMCCorrector)
35 //____________________________________________________________________
36 AliFMDMCCorrector::~AliFMDMCCorrector()
41 if (fComps) fComps->Clear();
42 if (fFMD1i) delete fFMD1i;
43 if (fFMD2i) delete fFMD2i;
44 if (fFMD2o) delete fFMD2o;
45 if (fFMD3i) delete fFMD3i;
46 if (fFMD3o) delete fFMD3o;
49 //____________________________________________________________________
51 AliFMDMCCorrector::operator=(const AliFMDMCCorrector& o)
54 // Assignement operator
57 // o Object to assign from
60 // Reference to this object
62 AliFMDCorrector::operator=(o);
67 //____________________________________________________________________
69 AliFMDMCCorrector::CorrectMC(AliForwardUtil::Histos& hists,
73 // Do the calculations
76 // hists Cache of histograms
82 AliForwardCorrectionManager& fcm = AliForwardCorrectionManager::Instance();
84 UShort_t uvb = vtxbin;
85 for (UShort_t d=1; d<=3; d++) {
86 UShort_t nr = (d == 1 ? 1 : 2);
87 for (UShort_t q=0; q<nr; q++) {
88 Char_t r = (q == 0 ? 'I' : 'O');
89 TH2D* h = hists.Get(d,r);
92 if (fUseSecondaryMap) {
93 TH2D* bg = fcm.GetSecondaryMap()->GetCorrection(d,r,uvb);
95 AliWarning(Form("No secondary correction for FMDM%d%c in vertex bin %d",
99 // Divide by primary/total ratio
102 if (fUseVertexBias) {
103 TH2D* ef = fcm.GetVertexBias()->GetCorrection(r, uvb);
105 AliWarning(Form("No event vertex bias correction in vertex bin %d",
109 // Divide by the event selection efficiency
118 //____________________________________________________________________
120 AliFMDMCCorrector::Init(const TAxis& eAxis)
123 // Initialize this object
126 // etaAxis Eta axis to use
128 AliFMDCorrector::Init(eAxis);
130 fFMD1i = Make(1,'I',eAxis);
131 fFMD2i = Make(2,'I',eAxis);
132 fFMD2o = Make(2,'O',eAxis);
133 fFMD3i = Make(3,'I',eAxis);
134 fFMD3o = Make(3,'O',eAxis);
143 //____________________________________________________________________
145 AliFMDMCCorrector::Make(UShort_t d, Char_t r,
146 const TAxis& axis) const
149 // MAke comparison profiles
157 // Newly allocated profile object
159 TProfile2D* ret = new TProfile2D(Form("FMD%d%c_esd_vs_mc", d, r),
160 Form("ESD/MC signal for FMD%d%c", d, r),
164 (r == 'I' || r == 'i') ? 20 : 40,
166 ret->GetXaxis()->SetTitle("#eta");
167 ret->GetYaxis()->SetTitle("#varphi [degrees]");
168 ret->GetZaxis()->SetTitle("#LT primary density ESD/MC#GT");
169 ret->SetDirectory(0);
172 //____________________________________________________________________
174 AliFMDMCCorrector::Fill(UShort_t d, Char_t r, TH2* esd, TH2* mc)
177 // Fill comparison profiles
185 if (!esd || !mc) return;
188 case 1: p = fFMD1i; break;
189 case 2: p = (r == 'I' || r == 'i' ? fFMD2i : fFMD2o); break;
190 case 3: p = (r == 'I' || r == 'i' ? fFMD3i : fFMD3o); break;
194 for (Int_t iEta = 1; iEta <= esd->GetNbinsX(); iEta++) {
195 Double_t eta = esd->GetXaxis()->GetBinCenter(iEta);
196 for (Int_t iPhi = 1; iPhi <= esd->GetNbinsY(); iPhi++) {
197 Double_t phi = esd->GetYaxis()->GetBinCenter(iPhi);
198 Double_t mEsd = esd->GetBinContent(iEta,iPhi);
199 Double_t mMc = mc->GetBinContent(iEta,iPhi);
201 p->Fill(eta, phi, (mMc > 0 ? mEsd / mMc : 0));
206 //____________________________________________________________________
208 AliFMDMCCorrector::CompareResults(AliForwardUtil::Histos& esd,
209 AliForwardUtil::Histos& mc)
212 // Compare the result of analysing the ESD for
213 // the inclusive charged particle density to analysing
223 Fill(1, 'I', esd.Get(1,'I'), mc.Get(1,'I'));
224 Fill(2, 'I', esd.Get(2,'I'), mc.Get(2,'I'));
225 Fill(2, 'O', esd.Get(2,'O'), mc.Get(2,'O'));
226 Fill(3, 'I', esd.Get(3,'I'), mc.Get(3,'I'));
227 Fill(3, 'O', esd.Get(3,'O'), mc.Get(3,'O'));
232 //____________________________________________________________________
234 AliFMDMCCorrector::DefineOutput(TList* dir)
237 // Output diagnostic histograms to directory
240 // dir List to write in
242 AliFMDCorrector::DefineOutput(dir);
243 TList* d = static_cast<TList*>(dir->FindObject(GetName()));
246 fComps->SetName("esd_mc_comparison");
250 //____________________________________________________________________