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Commit | Line | Data |
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7984e5f7 | 1 | // |
2 | // This class calculates the inclusive charged particle density | |
3 | // in each for the 5 FMD rings based on the MC truth. | |
4 | // | |
5 | // Input: | |
6 | // - AliMCEvent MC truth event infromation | |
7 | // | |
8 | // Output: | |
9 | // - None | |
10 | // | |
11 | // Corrections used: | |
12 | // - None | |
13 | // | |
14 | // | |
0bd4b00f | 15 | #include "AliFMDMCDensityCalculator.h" |
16 | #include <TMath.h> | |
17 | #include "AliForwardCorrectionManager.h" | |
18 | #include "AliFMDStripIndex.h" | |
19 | #include "AliMCEvent.h" | |
68d11054 | 20 | #include "AliESDFMD.h" |
0bd4b00f | 21 | #include "AliLog.h" |
22 | #include <TH2D.h> | |
68d11054 | 23 | #include <TProfile2D.h> |
0bd4b00f | 24 | |
25 | ClassImp(AliFMDMCDensityCalculator) | |
26 | #if 0 | |
27 | ; // For Emacs | |
28 | #endif | |
29 | ||
68d11054 | 30 | //____________________________________________________________________ |
31 | AliFMDMCDensityCalculator::~AliFMDMCDensityCalculator() | |
32 | { | |
7984e5f7 | 33 | // |
34 | // Destructor | |
35 | // | |
68d11054 | 36 | if (fComps) fComps->Clear(); |
37 | if (fFMD1i) delete fFMD1i; | |
38 | if (fFMD2i) delete fFMD2i; | |
39 | if (fFMD2o) delete fFMD2o; | |
40 | if (fFMD3i) delete fFMD3i; | |
41 | if (fFMD3o) delete fFMD3o; | |
42 | if (fFMD1iC) delete fFMD1iC; | |
43 | if (fFMD2iC) delete fFMD2iC; | |
44 | if (fFMD2oC) delete fFMD2oC; | |
45 | if (fFMD3iC) delete fFMD3iC; | |
46 | if (fFMD3oC) delete fFMD3oC; | |
47 | } | |
0bd4b00f | 48 | |
49 | //____________________________________________________________________ | |
50 | AliFMDMCDensityCalculator& | |
51 | AliFMDMCDensityCalculator::operator=(const AliFMDMCDensityCalculator& o) | |
52 | { | |
7984e5f7 | 53 | // |
54 | // Assignement operator | |
55 | // | |
56 | // Parameters: | |
57 | // o Object to assign from | |
58 | // | |
59 | // Return: | |
60 | // Reference to this object | |
61 | // | |
0bd4b00f | 62 | AliFMDDensityCalculator::operator=(o); |
63 | return *this; | |
64 | } | |
65 | ||
7984e5f7 | 66 | |
67 | //____________________________________________________________________ | |
68 | void | |
69 | AliFMDMCDensityCalculator::Init(const TAxis& eAxis) | |
70 | { | |
71 | // | |
72 | // Initialize this object | |
73 | // | |
74 | // Parameters: | |
75 | // etaAxis Eta axis to use | |
76 | // | |
77 | fFMD1i = Make(1,'I',eAxis); | |
78 | fFMD2i = Make(2,'I',eAxis); | |
79 | fFMD2o = Make(2,'O',eAxis); | |
80 | fFMD3i = Make(3,'I',eAxis); | |
81 | fFMD3o = Make(3,'O',eAxis); | |
82 | fFMD1iC = Make(1,'I'); | |
83 | fFMD2iC = Make(2,'I'); | |
84 | fFMD2oC = Make(2,'O'); | |
85 | fFMD3iC = Make(3,'I'); | |
86 | fFMD3oC = Make(3,'O'); | |
87 | ||
88 | fComps->Add(fFMD1i); | |
89 | fComps->Add(fFMD2i); | |
90 | fComps->Add(fFMD2o); | |
91 | fComps->Add(fFMD3i); | |
92 | fComps->Add(fFMD3o); | |
93 | fComps->Add(fFMD1iC); | |
94 | fComps->Add(fFMD2iC); | |
95 | fComps->Add(fFMD2oC); | |
96 | fComps->Add(fFMD3iC); | |
97 | fComps->Add(fFMD3oC); | |
98 | } | |
0bd4b00f | 99 | |
68d11054 | 100 | |
0bd4b00f | 101 | //____________________________________________________________________ |
102 | Bool_t | |
68d11054 | 103 | AliFMDMCDensityCalculator::CalculateMC(const AliESDFMD& fmd, |
104 | AliForwardUtil::Histos& hists) | |
0bd4b00f | 105 | { |
7984e5f7 | 106 | // |
107 | // Calculate the charged particle density from the MC track references. | |
108 | // | |
109 | // Parameters: | |
110 | // event MC event | |
111 | // hists Histograms to fill | |
112 | // vz Interaction z coordinate @f$ v_z@f$ | |
113 | // vtxBin bin corresponding to @f$ v_z@f$ | |
114 | // | |
115 | // Return: | |
116 | // true on success | |
117 | // | |
68d11054 | 118 | for (UShort_t d=1; d<=3; d++) { |
119 | UShort_t nr = (d == 1 ? 1 : 2); | |
120 | for (UShort_t q=0; q<nr; q++) { | |
121 | Char_t r = (q == 0 ? 'I' : 'O'); | |
122 | UShort_t ns= (q == 0 ? 20 : 40); | |
123 | UShort_t nt= (q == 0 ? 512 : 256); | |
124 | TH2D* h = hists.Get(d,r); | |
0bd4b00f | 125 | |
68d11054 | 126 | for (UShort_t s=0; s<ns; s++) { |
127 | for (UShort_t t=0; t<nt; t++) { | |
128 | Float_t mult = fmd.Multiplicity(d,r,s,t); | |
129 | ||
130 | if (mult == 0 || mult > 20) continue; | |
131 | ||
132 | Float_t phi = fmd.Phi(d,r,s,t) / 180 * TMath::Pi(); | |
133 | Float_t eta = fmd.Eta(d,r,s,t); | |
134 | ||
135 | Float_t corr = Correction(d, r, s, t, eta, 0, false); | |
136 | Float_t sig = (corr <= 0 ? 0 : mult / corr); | |
137 | h->Fill(eta,phi,sig); | |
138 | } | |
139 | } | |
0bd4b00f | 140 | } |
141 | } | |
142 | return kTRUE; | |
143 | } | |
144 | ||
68d11054 | 145 | //____________________________________________________________________ |
146 | TProfile2D* | |
147 | AliFMDMCDensityCalculator::Make(UShort_t d, Char_t r, | |
148 | const TAxis& axis) const | |
149 | { | |
7984e5f7 | 150 | // |
151 | // MAke comparison profiles | |
152 | // | |
153 | // Parameters: | |
154 | // d Detector | |
155 | // r Ring | |
156 | // axis Eta axis | |
157 | // | |
158 | // Return: | |
159 | // Newly allocated profile object | |
160 | // | |
68d11054 | 161 | TProfile2D* ret = new TProfile2D(Form("FMD%d%c_esd_vs_mc", d, r), |
162 | Form("ESD/MC signal for FMD%d%c", d, r), | |
163 | axis.GetNbins(), | |
164 | axis.GetXmin(), | |
165 | axis.GetXmax(), | |
166 | (r == 'I' || r == 'i') ? 20 : 40, | |
167 | 0, 2*TMath::Pi()); | |
168 | ret->GetXaxis()->SetTitle("#eta"); | |
169 | ret->GetYaxis()->SetTitle("#varphi [degrees]"); | |
170 | ret->GetZaxis()->SetTitle("#LT incusive density ESD/MC#GT"); | |
171 | ret->SetDirectory(0); | |
172 | return ret; | |
173 | } | |
174 | //____________________________________________________________________ | |
175 | TH2D* | |
176 | AliFMDMCDensityCalculator::Make(UShort_t d, Char_t r) const | |
177 | { | |
7984e5f7 | 178 | // |
179 | // MAke comparison profiles | |
180 | // | |
181 | // Parameters: | |
182 | // d Detector | |
183 | // r Ring | |
184 | // | |
185 | // Return: | |
186 | // Newly allocated profile object | |
187 | // | |
68d11054 | 188 | TH2D* ret = new TH2D(Form("FMD%d%c_corr_mc_esd", d, r), |
189 | Form("ESD-MC correlation for FMD%d%c", d, r), | |
190 | 200, 0, 20, 200, 0, 20); | |
191 | ret->GetXaxis()->SetTitle("m_{incl} (MC)"); | |
192 | ret->GetYaxis()->SetTitle("#Delta/#Delta_{mp} (ESD)"); | |
193 | ret->GetZaxis()->SetTitle("Correlation"); | |
194 | ret->SetDirectory(0); | |
195 | return ret; | |
196 | } | |
197 | //____________________________________________________________________ | |
198 | void | |
199 | AliFMDMCDensityCalculator::Fill(UShort_t d, Char_t r, TH2* esd, TH2* mc) | |
200 | { | |
7984e5f7 | 201 | // |
202 | // Fill comparison profiles | |
203 | // | |
204 | // Parameters: | |
205 | // d Detector | |
206 | // r Ring | |
207 | // esd ESD histogram | |
208 | // mc MC histogram | |
209 | // | |
68d11054 | 210 | if (!esd || !mc) return; |
211 | TProfile2D* p = 0; | |
212 | TH2D* h = 0; | |
213 | switch (d) { | |
214 | case 1: | |
215 | p = fFMD1i; | |
216 | h = fFMD1iC; | |
217 | break; | |
218 | case 2: | |
219 | p = (r == 'I' || r == 'i' ? fFMD2i : fFMD2o); | |
220 | h = (r == 'I' || r == 'i' ? fFMD2iC : fFMD2oC); | |
221 | break; | |
222 | case 3: | |
223 | p = (r == 'I' || r == 'i' ? fFMD3i : fFMD3o); | |
224 | h = (r == 'I' || r == 'i' ? fFMD3iC : fFMD3oC); | |
225 | break; | |
226 | } | |
227 | if (!p) return; | |
228 | ||
229 | for (Int_t iEta = 1; iEta <= esd->GetNbinsX(); iEta++) { | |
230 | Double_t eta = esd->GetXaxis()->GetBinCenter(iEta); | |
231 | for (Int_t iPhi = 1; iPhi <= esd->GetNbinsY(); iPhi++) { | |
232 | Double_t phi = esd->GetYaxis()->GetBinCenter(iPhi); | |
233 | Double_t mEsd = esd->GetBinContent(iEta,iPhi); | |
234 | Double_t mMc = mc->GetBinContent(iEta,iPhi); | |
235 | ||
236 | p->Fill(eta, phi, (mMc > 0 ? mEsd / mMc : 0)); | |
237 | h->Fill(mMc,mEsd); | |
238 | } | |
239 | } | |
240 | } | |
241 | ||
0bd4b00f | 242 | //____________________________________________________________________ |
243 | Bool_t | |
68d11054 | 244 | AliFMDMCDensityCalculator::CompareResults(AliForwardUtil::Histos& esd, |
245 | AliForwardUtil::Histos& mc) | |
0bd4b00f | 246 | { |
7984e5f7 | 247 | // |
248 | // Compare the result of analysing the ESD for | |
249 | // the inclusive charged particle density to analysing | |
250 | // MC truth | |
251 | // | |
252 | // Parameters: | |
253 | // esd | |
254 | // mc | |
255 | // | |
256 | // Return: | |
257 | // true | |
258 | // | |
68d11054 | 259 | Fill(1, 'I', esd.Get(1,'I'), mc.Get(1,'I')); |
260 | Fill(2, 'I', esd.Get(2,'I'), mc.Get(2,'I')); | |
261 | Fill(2, 'O', esd.Get(2,'O'), mc.Get(2,'O')); | |
262 | Fill(3, 'I', esd.Get(3,'I'), mc.Get(3,'I')); | |
263 | Fill(3, 'O', esd.Get(3,'O'), mc.Get(3,'O')); | |
264 | ||
265 | return kTRUE; | |
0bd4b00f | 266 | } |
267 | ||
68d11054 | 268 | //____________________________________________________________________ |
269 | void | |
270 | AliFMDMCDensityCalculator::DefineOutput(TList* dir) | |
271 | { | |
7984e5f7 | 272 | // |
273 | // Output diagnostic histograms to directory | |
274 | // | |
275 | // Parameters: | |
276 | // dir List to write in | |
277 | // | |
68d11054 | 278 | AliFMDDensityCalculator::DefineOutput(dir); |
279 | TList* d = static_cast<TList*>(dir->FindObject(GetName())); | |
280 | ||
281 | fComps = new TList; | |
282 | fComps->SetName("esd_mc_comparison"); | |
283 | d->Add(fComps); | |
284 | ||
285 | } | |
0bd4b00f | 286 | //____________________________________________________________________ |
287 | // | |
288 | // EOF | |
289 | // | |
290 | ||
291 | ||
292 |