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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 | // | |
c6d6aa81 | 36 | if (fComps) fComps->Delete(); |
68d11054 | 37 | } |
0bd4b00f | 38 | |
39 | //____________________________________________________________________ | |
40 | AliFMDMCDensityCalculator& | |
41 | AliFMDMCDensityCalculator::operator=(const AliFMDMCDensityCalculator& o) | |
42 | { | |
7984e5f7 | 43 | // |
44 | // Assignement operator | |
45 | // | |
46 | // Parameters: | |
47 | // o Object to assign from | |
48 | // | |
49 | // Return: | |
50 | // Reference to this object | |
51 | // | |
0bd4b00f | 52 | AliFMDDensityCalculator::operator=(o); |
53 | return *this; | |
54 | } | |
55 | ||
7984e5f7 | 56 | |
57 | //____________________________________________________________________ | |
58 | void | |
59 | AliFMDMCDensityCalculator::Init(const TAxis& eAxis) | |
60 | { | |
61 | // | |
62 | // Initialize this object | |
63 | // | |
64 | // Parameters: | |
65 | // etaAxis Eta axis to use | |
66 | // | |
7ec4d843 | 67 | AliFMDDensityCalculator::Init(eAxis); |
7984e5f7 | 68 | fFMD1i = Make(1,'I',eAxis); |
69 | fFMD2i = Make(2,'I',eAxis); | |
70 | fFMD2o = Make(2,'O',eAxis); | |
71 | fFMD3i = Make(3,'I',eAxis); | |
72 | fFMD3o = Make(3,'O',eAxis); | |
73 | fFMD1iC = Make(1,'I'); | |
74 | fFMD2iC = Make(2,'I'); | |
75 | fFMD2oC = Make(2,'O'); | |
76 | fFMD3iC = Make(3,'I'); | |
77 | fFMD3oC = Make(3,'O'); | |
c6d6aa81 | 78 | fFMD1iD = Make(1,'I', 20); |
79 | fFMD2iD = Make(2,'I', 20); | |
80 | fFMD2oD = Make(2,'O', 20); | |
81 | fFMD3iD = Make(3,'I', 20); | |
82 | fFMD3oD = Make(3,'O', 20); | |
7984e5f7 | 83 | |
84 | fComps->Add(fFMD1i); | |
85 | fComps->Add(fFMD2i); | |
86 | fComps->Add(fFMD2o); | |
87 | fComps->Add(fFMD3i); | |
88 | fComps->Add(fFMD3o); | |
89 | fComps->Add(fFMD1iC); | |
90 | fComps->Add(fFMD2iC); | |
91 | fComps->Add(fFMD2oC); | |
92 | fComps->Add(fFMD3iC); | |
93 | fComps->Add(fFMD3oC); | |
c6d6aa81 | 94 | fComps->Add(fFMD1iD); |
95 | fComps->Add(fFMD2iD); | |
96 | fComps->Add(fFMD2oD); | |
97 | fComps->Add(fFMD3iD); | |
98 | fComps->Add(fFMD3oD); | |
7984e5f7 | 99 | } |
0bd4b00f | 100 | |
68d11054 | 101 | |
0bd4b00f | 102 | //____________________________________________________________________ |
103 | Bool_t | |
68d11054 | 104 | AliFMDMCDensityCalculator::CalculateMC(const AliESDFMD& fmd, |
105 | AliForwardUtil::Histos& hists) | |
0bd4b00f | 106 | { |
7984e5f7 | 107 | // |
108 | // Calculate the charged particle density from the MC track references. | |
109 | // | |
110 | // Parameters: | |
b6b35c77 | 111 | // fmd Forward MC event |
7984e5f7 | 112 | // hists Histograms to fill |
113 | // vz Interaction z coordinate @f$ v_z@f$ | |
114 | // vtxBin bin corresponding to @f$ v_z@f$ | |
115 | // | |
116 | // Return: | |
117 | // true on success | |
118 | // | |
68d11054 | 119 | for (UShort_t d=1; d<=3; d++) { |
120 | UShort_t nr = (d == 1 ? 1 : 2); | |
121 | for (UShort_t q=0; q<nr; q++) { | |
122 | Char_t r = (q == 0 ? 'I' : 'O'); | |
123 | UShort_t ns= (q == 0 ? 20 : 40); | |
124 | UShort_t nt= (q == 0 ? 512 : 256); | |
125 | TH2D* h = hists.Get(d,r); | |
0bd4b00f | 126 | |
68d11054 | 127 | for (UShort_t s=0; s<ns; s++) { |
128 | for (UShort_t t=0; t<nt; t++) { | |
129 | Float_t mult = fmd.Multiplicity(d,r,s,t); | |
130 | ||
131 | if (mult == 0 || mult > 20) continue; | |
132 | ||
133 | Float_t phi = fmd.Phi(d,r,s,t) / 180 * TMath::Pi(); | |
134 | Float_t eta = fmd.Eta(d,r,s,t); | |
135 | ||
6feacd76 | 136 | Float_t corr = Correction(d, r, s, t, 0, eta, false); |
68d11054 | 137 | Float_t sig = (corr <= 0 ? 0 : mult / corr); |
138 | h->Fill(eta,phi,sig); | |
139 | } | |
140 | } | |
0bd4b00f | 141 | } |
142 | } | |
143 | return kTRUE; | |
144 | } | |
145 | ||
68d11054 | 146 | //____________________________________________________________________ |
147 | TProfile2D* | |
148 | AliFMDMCDensityCalculator::Make(UShort_t d, Char_t r, | |
149 | const TAxis& axis) const | |
150 | { | |
7984e5f7 | 151 | // |
152 | // MAke comparison profiles | |
153 | // | |
154 | // Parameters: | |
155 | // d Detector | |
156 | // r Ring | |
157 | // axis Eta axis | |
158 | // | |
159 | // Return: | |
160 | // Newly allocated profile object | |
161 | // | |
68d11054 | 162 | TProfile2D* ret = new TProfile2D(Form("FMD%d%c_esd_vs_mc", d, r), |
163 | Form("ESD/MC signal for FMD%d%c", d, r), | |
164 | axis.GetNbins(), | |
165 | axis.GetXmin(), | |
166 | axis.GetXmax(), | |
167 | (r == 'I' || r == 'i') ? 20 : 40, | |
168 | 0, 2*TMath::Pi()); | |
169 | ret->GetXaxis()->SetTitle("#eta"); | |
c6d6aa81 | 170 | ret->GetYaxis()->SetTitle("#varphi [radians]"); |
171 | ret->GetZaxis()->SetTitle("#LT #deltaN_{ch,incl}=N_{ch,incl,ana}-N_{ch,incl,mc}#GT"); | |
68d11054 | 172 | ret->SetDirectory(0); |
173 | return ret; | |
174 | } | |
175 | //____________________________________________________________________ | |
176 | TH2D* | |
177 | AliFMDMCDensityCalculator::Make(UShort_t d, Char_t r) const | |
178 | { | |
7984e5f7 | 179 | // |
180 | // MAke comparison profiles | |
181 | // | |
182 | // Parameters: | |
183 | // d Detector | |
184 | // r Ring | |
185 | // | |
186 | // Return: | |
187 | // Newly allocated profile object | |
188 | // | |
68d11054 | 189 | TH2D* ret = new TH2D(Form("FMD%d%c_corr_mc_esd", d, r), |
190 | Form("ESD-MC correlation for FMD%d%c", d, r), | |
c6d6aa81 | 191 | 41, -.5, 40.5, 410, -.5, 40.5); |
68d11054 | 192 | ret->GetXaxis()->SetTitle("m_{incl} (MC)"); |
c6d6aa81 | 193 | ret->GetYaxis()->SetTitle("m_{incl} from #Delta/#Delta_{mp} (ESD)"); |
68d11054 | 194 | ret->GetZaxis()->SetTitle("Correlation"); |
195 | ret->SetDirectory(0); | |
196 | return ret; | |
197 | } | |
198 | //____________________________________________________________________ | |
c6d6aa81 | 199 | TH1D* |
200 | AliFMDMCDensityCalculator::Make(UShort_t d, Char_t r, Int_t max) const | |
201 | { | |
202 | // | |
203 | // MAke comparison profiles | |
204 | // | |
205 | // Parameters: | |
206 | // d Detector | |
207 | // r Ring | |
208 | // | |
209 | // Return: | |
210 | // Newly allocated profile object | |
211 | // | |
212 | TH1D* ret = new TH1D(Form("FMD%d%c_diff_mc_esd", d, r), | |
213 | Form("ESD-MC difference for FMD%d%c", d, r), | |
214 | 20*max,-max, max); | |
215 | ret->GetXaxis()->SetTitle("MC - ESD"); | |
216 | ret->SetDirectory(0); | |
217 | return ret; | |
218 | } | |
219 | //____________________________________________________________________ | |
68d11054 | 220 | void |
221 | AliFMDMCDensityCalculator::Fill(UShort_t d, Char_t r, TH2* esd, TH2* mc) | |
222 | { | |
7984e5f7 | 223 | // |
224 | // Fill comparison profiles | |
225 | // | |
226 | // Parameters: | |
227 | // d Detector | |
228 | // r Ring | |
229 | // esd ESD histogram | |
230 | // mc MC histogram | |
231 | // | |
68d11054 | 232 | if (!esd || !mc) return; |
233 | TProfile2D* p = 0; | |
234 | TH2D* h = 0; | |
c6d6aa81 | 235 | TH1D* x = 0; |
68d11054 | 236 | switch (d) { |
237 | case 1: | |
238 | p = fFMD1i; | |
239 | h = fFMD1iC; | |
c6d6aa81 | 240 | x = fFMD1iD; |
68d11054 | 241 | break; |
242 | case 2: | |
243 | p = (r == 'I' || r == 'i' ? fFMD2i : fFMD2o); | |
244 | h = (r == 'I' || r == 'i' ? fFMD2iC : fFMD2oC); | |
c6d6aa81 | 245 | x = (r == 'I' || r == 'i' ? fFMD2iD : fFMD2oD); |
68d11054 | 246 | break; |
247 | case 3: | |
248 | p = (r == 'I' || r == 'i' ? fFMD3i : fFMD3o); | |
249 | h = (r == 'I' || r == 'i' ? fFMD3iC : fFMD3oC); | |
c6d6aa81 | 250 | x = (r == 'I' || r == 'i' ? fFMD3iD : fFMD3oD); |
68d11054 | 251 | break; |
252 | } | |
253 | if (!p) return; | |
254 | ||
255 | for (Int_t iEta = 1; iEta <= esd->GetNbinsX(); iEta++) { | |
256 | Double_t eta = esd->GetXaxis()->GetBinCenter(iEta); | |
257 | for (Int_t iPhi = 1; iPhi <= esd->GetNbinsY(); iPhi++) { | |
258 | Double_t phi = esd->GetYaxis()->GetBinCenter(iPhi); | |
259 | Double_t mEsd = esd->GetBinContent(iEta,iPhi); | |
260 | Double_t mMc = mc->GetBinContent(iEta,iPhi); | |
261 | ||
c6d6aa81 | 262 | if (mMc <= 0 && mEsd <= 0) continue; |
263 | x->Fill(mMc-mEsd); | |
264 | p->Fill(eta, phi, mEsd - mMc); | |
68d11054 | 265 | h->Fill(mMc,mEsd); |
266 | } | |
267 | } | |
268 | } | |
269 | ||
0bd4b00f | 270 | //____________________________________________________________________ |
271 | Bool_t | |
68d11054 | 272 | AliFMDMCDensityCalculator::CompareResults(AliForwardUtil::Histos& esd, |
273 | AliForwardUtil::Histos& mc) | |
0bd4b00f | 274 | { |
7984e5f7 | 275 | // |
276 | // Compare the result of analysing the ESD for | |
277 | // the inclusive charged particle density to analysing | |
278 | // MC truth | |
279 | // | |
280 | // Parameters: | |
281 | // esd | |
282 | // mc | |
283 | // | |
284 | // Return: | |
285 | // true | |
286 | // | |
68d11054 | 287 | Fill(1, 'I', esd.Get(1,'I'), mc.Get(1,'I')); |
288 | Fill(2, 'I', esd.Get(2,'I'), mc.Get(2,'I')); | |
289 | Fill(2, 'O', esd.Get(2,'O'), mc.Get(2,'O')); | |
290 | Fill(3, 'I', esd.Get(3,'I'), mc.Get(3,'I')); | |
291 | Fill(3, 'O', esd.Get(3,'O'), mc.Get(3,'O')); | |
292 | ||
293 | return kTRUE; | |
0bd4b00f | 294 | } |
295 | ||
68d11054 | 296 | //____________________________________________________________________ |
297 | void | |
298 | AliFMDMCDensityCalculator::DefineOutput(TList* dir) | |
299 | { | |
7984e5f7 | 300 | // |
301 | // Output diagnostic histograms to directory | |
302 | // | |
303 | // Parameters: | |
304 | // dir List to write in | |
305 | // | |
68d11054 | 306 | AliFMDDensityCalculator::DefineOutput(dir); |
307 | TList* d = static_cast<TList*>(dir->FindObject(GetName())); | |
308 | ||
309 | fComps = new TList; | |
c6d6aa81 | 310 | fComps->SetOwner(); |
68d11054 | 311 | fComps->SetName("esd_mc_comparison"); |
312 | d->Add(fComps); | |
313 | ||
314 | } | |
0bd4b00f | 315 | //____________________________________________________________________ |
316 | // | |
317 | // EOF | |
318 | // | |
319 | ||
320 | ||
321 |