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>
31 ClassImp(AliFMDMCCorrector)
37 //____________________________________________________________________
38 AliFMDMCCorrector::~AliFMDMCCorrector()
43 if (fComps) fComps->Clear();
44 if (fFMD1i) delete fFMD1i;
45 if (fFMD2i) delete fFMD2i;
46 if (fFMD2o) delete fFMD2o;
47 if (fFMD3i) delete fFMD3i;
48 if (fFMD3o) delete fFMD3o;
51 //____________________________________________________________________
53 AliFMDMCCorrector::operator=(const AliFMDMCCorrector& o)
56 // Assignement operator
59 // o Object to assign from
62 // Reference to this object
64 AliFMDCorrector::operator=(o);
69 //____________________________________________________________________
71 AliFMDMCCorrector::CorrectMC(AliForwardUtil::Histos& hists,
75 // Do the calculations
78 // hists Cache of histograms
84 AliForwardCorrectionManager& fcm = AliForwardCorrectionManager::Instance();
86 UShort_t uvb = vtxbin;
87 for (UShort_t d=1; d<=3; d++) {
88 UShort_t nr = (d == 1 ? 1 : 2);
89 for (UShort_t q=0; q<nr; q++) {
90 Char_t r = (q == 0 ? 'I' : 'O');
91 TH2D* h = hists.Get(d,r);
92 TH2D* bg = fcm.GetSecondaryMap()->GetCorrection(d,r,uvb);
93 TH2D* ef = fcm.GetVertexBias()->GetCorrection(r, uvb);
95 AliWarning(Form("No secondary correction for FMDM%d%c in vertex bin %d",
100 AliWarning(Form("No event vertex bias correction in vertex bin %d",
105 // Divide by primary/total ratio
108 // Divide by the event selection efficiency
116 //____________________________________________________________________
118 AliFMDMCCorrector::Init(const TAxis& eAxis)
121 // Initialize this object
124 // etaAxis Eta axis to use
126 fFMD1i = Make(1,'I',eAxis);
127 fFMD2i = Make(2,'I',eAxis);
128 fFMD2o = Make(2,'O',eAxis);
129 fFMD3i = Make(3,'I',eAxis);
130 fFMD3o = Make(3,'O',eAxis);
139 //____________________________________________________________________
141 AliFMDMCCorrector::Make(UShort_t d, Char_t r,
142 const TAxis& axis) const
145 // MAke comparison profiles
153 // Newly allocated profile object
155 TProfile2D* ret = new TProfile2D(Form("FMD%d%c_esd_vs_mc", d, r),
156 Form("ESD/MC signal for FMD%d%c", d, r),
160 (r == 'I' || r == 'i') ? 20 : 40,
162 ret->GetXaxis()->SetTitle("#eta");
163 ret->GetYaxis()->SetTitle("#varphi [degrees]");
164 ret->GetZaxis()->SetTitle("#LT primary density ESD/MC#GT");
165 ret->SetDirectory(0);
168 //____________________________________________________________________
170 AliFMDMCCorrector::Fill(UShort_t d, Char_t r, TH2* esd, TH2* mc)
173 // Fill comparison profiles
181 if (!esd || !mc) return;
184 case 1: p = fFMD1i; break;
185 case 2: p = (r == 'I' || r == 'i' ? fFMD2i : fFMD2o); break;
186 case 3: p = (r == 'I' || r == 'i' ? fFMD3i : fFMD3o); break;
190 for (Int_t iEta = 1; iEta <= esd->GetNbinsX(); iEta++) {
191 Double_t eta = esd->GetXaxis()->GetBinCenter(iEta);
192 for (Int_t iPhi = 1; iPhi <= esd->GetNbinsY(); iPhi++) {
193 Double_t phi = esd->GetYaxis()->GetBinCenter(iPhi);
194 Double_t mEsd = esd->GetBinContent(iEta,iPhi);
195 Double_t mMc = mc->GetBinContent(iEta,iPhi);
197 p->Fill(eta, phi, (mMc > 0 ? mEsd / mMc : 0));
202 //____________________________________________________________________
204 AliFMDMCCorrector::CompareResults(AliForwardUtil::Histos& esd,
205 AliForwardUtil::Histos& mc)
208 // Compare the result of analysing the ESD for
209 // the inclusive charged particle density to analysing
219 Fill(1, 'I', esd.Get(1,'I'), mc.Get(1,'I'));
220 Fill(2, 'I', esd.Get(2,'I'), mc.Get(2,'I'));
221 Fill(2, 'O', esd.Get(2,'O'), mc.Get(2,'O'));
222 Fill(3, 'I', esd.Get(3,'I'), mc.Get(3,'I'));
223 Fill(3, 'O', esd.Get(3,'O'), mc.Get(3,'O'));
228 //____________________________________________________________________
230 AliFMDMCCorrector::DefineOutput(TList* dir)
233 // Output diagnostic histograms to directory
236 // dir List to write in
238 AliFMDCorrector::DefineOutput(dir);
239 TList* d = static_cast<TList*>(dir->FindObject(GetName()));
242 fComps->SetName("esd_mc_comparison");
246 //____________________________________________________________________