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7984e5f7 | 1 | // |
2 | // This class calculates the exclusive charged particle density | |
3 | // in each for the 5 FMD rings. | |
4 | // | |
72cc12cd | 5 | #include "AliFMDCorrector.h" |
7e4038b5 | 6 | #include <AliESDFMD.h> |
7 | #include <TAxis.h> | |
8 | #include <TList.h> | |
9 | #include <TMath.h> | |
0bd4b00f | 10 | #include "AliForwardCorrectionManager.h" |
7e4038b5 | 11 | #include "AliLog.h" |
12 | #include <TH2D.h> | |
0bd4b00f | 13 | #include <TROOT.h> |
14 | #include <iostream> | |
15 | #include <iomanip> | |
7e4038b5 | 16 | |
72cc12cd | 17 | ClassImp(AliFMDCorrector) |
7e4038b5 | 18 | #if 0 |
19 | ; // For Emacs | |
20 | #endif | |
21 | ||
22 | //____________________________________________________________________ | |
72cc12cd | 23 | AliFMDCorrector::AliFMDCorrector() |
7e4038b5 | 24 | : TNamed(), |
25 | fRingHistos(), | |
7ec4d843 | 26 | fUseSecondaryMap(true), |
27 | fUseVertexBias(true), | |
28 | fUseAcceptance(true), | |
81eda625 | 29 | fUseMergingEfficiency(true), |
ea3e5d95 | 30 | fDebug(0) |
7984e5f7 | 31 | { |
32 | // Constructor | |
33 | } | |
7e4038b5 | 34 | |
35 | //____________________________________________________________________ | |
72cc12cd | 36 | AliFMDCorrector::AliFMDCorrector(const char* title) |
cc83fca2 | 37 | : TNamed("fmdCorrector", title), |
7e4038b5 | 38 | fRingHistos(), |
7ec4d843 | 39 | fUseSecondaryMap(true), |
40 | fUseVertexBias(true), | |
41 | fUseAcceptance(true), | |
81eda625 | 42 | fUseMergingEfficiency(true), |
ea3e5d95 | 43 | fDebug(0) |
7e4038b5 | 44 | { |
7984e5f7 | 45 | // Constructor |
46 | // | |
47 | // Parameters: | |
48 | // title Title | |
7e4038b5 | 49 | fRingHistos.SetName(GetName()); |
50 | fRingHistos.Add(new RingHistos(1, 'I')); | |
51 | fRingHistos.Add(new RingHistos(2, 'I')); | |
52 | fRingHistos.Add(new RingHistos(2, 'O')); | |
53 | fRingHistos.Add(new RingHistos(3, 'I')); | |
54 | fRingHistos.Add(new RingHistos(3, 'O')); | |
55 | } | |
56 | ||
57 | //____________________________________________________________________ | |
72cc12cd | 58 | AliFMDCorrector::AliFMDCorrector(const AliFMDCorrector& o) |
7e4038b5 | 59 | : TNamed(o), |
60 | fRingHistos(), | |
7ec4d843 | 61 | fUseSecondaryMap(o.fUseSecondaryMap), |
62 | fUseVertexBias(o.fUseVertexBias), | |
63 | fUseAcceptance(o.fUseAcceptance), | |
81eda625 | 64 | fUseMergingEfficiency(o.fUseMergingEfficiency), |
ea3e5d95 | 65 | fDebug(o.fDebug) |
7e4038b5 | 66 | { |
7984e5f7 | 67 | // Copy constructor |
68 | // | |
69 | // Parameters: | |
70 | // o Object to copy from | |
7e4038b5 | 71 | TIter next(&o.fRingHistos); |
72 | TObject* obj = 0; | |
73 | while ((obj = next())) fRingHistos.Add(obj); | |
74 | } | |
75 | ||
76 | //____________________________________________________________________ | |
72cc12cd | 77 | AliFMDCorrector::~AliFMDCorrector() |
7e4038b5 | 78 | { |
7984e5f7 | 79 | // Destructor |
80 | // | |
81 | // | |
7e4038b5 | 82 | fRingHistos.Delete(); |
83 | } | |
84 | ||
85 | //____________________________________________________________________ | |
72cc12cd | 86 | AliFMDCorrector& |
87 | AliFMDCorrector::operator=(const AliFMDCorrector& o) | |
7e4038b5 | 88 | { |
7984e5f7 | 89 | // Assignment operator |
90 | // | |
91 | // Parameters: | |
92 | // o Object to assign from | |
ea3e5d95 | 93 | TNamed::operator=(o); |
7e4038b5 | 94 | |
ea3e5d95 | 95 | fDebug = o.fDebug; |
7e4038b5 | 96 | fRingHistos.Delete(); |
7ec4d843 | 97 | fUseSecondaryMap = o.fUseSecondaryMap; |
98 | fUseVertexBias = o.fUseVertexBias; | |
99 | fUseAcceptance = o.fUseAcceptance; | |
81eda625 | 100 | fUseMergingEfficiency = o.fUseMergingEfficiency; |
7e4038b5 | 101 | TIter next(&o.fRingHistos); |
102 | TObject* obj = 0; | |
103 | while ((obj = next())) fRingHistos.Add(obj); | |
104 | ||
105 | return *this; | |
106 | } | |
107 | ||
7ec4d843 | 108 | //____________________________________________________________________ |
109 | void | |
110 | AliFMDCorrector::Init(const TAxis&) | |
111 | { | |
112 | // | |
113 | // Initialize this object | |
114 | // | |
115 | // Parameters: | |
116 | // etaAxis Eta axis to use | |
117 | // | |
118 | if (!fUseSecondaryMap) | |
119 | AliWarning("Secondary maps not used - BE CAREFUL"); | |
120 | if (!fUseVertexBias) | |
121 | AliWarning("Vertex bias not used"); | |
122 | if (!fUseAcceptance) | |
123 | AliWarning("Acceptance from dead-channels not used"); | |
124 | } | |
125 | ||
7e4038b5 | 126 | //____________________________________________________________________ |
72cc12cd | 127 | AliFMDCorrector::RingHistos* |
128 | AliFMDCorrector::GetRingHistos(UShort_t d, Char_t r) const | |
7e4038b5 | 129 | { |
7984e5f7 | 130 | // |
131 | // Get the ring histogram container | |
132 | // Parameters: | |
133 | // d Detector | |
134 | // r Ring | |
135 | // | |
136 | // Return: | |
137 | // Ring histogram container | |
138 | // | |
7e4038b5 | 139 | Int_t idx = -1; |
140 | switch (d) { | |
141 | case 1: idx = 0; break; | |
142 | case 2: idx = 1 + (r == 'I' || r == 'i' ? 0 : 1); break; | |
143 | case 3: idx = 3 + (r == 'I' || r == 'i' ? 0 : 1); break; | |
144 | } | |
145 | if (idx < 0 || idx >= fRingHistos.GetEntries()) return 0; | |
146 | ||
147 | return static_cast<RingHistos*>(fRingHistos.At(idx)); | |
148 | } | |
149 | ||
150 | //____________________________________________________________________ | |
151 | Bool_t | |
72cc12cd | 152 | AliFMDCorrector::Correct(AliForwardUtil::Histos& hists, |
7ec4d843 | 153 | UShort_t vtxbin) |
7e4038b5 | 154 | { |
7984e5f7 | 155 | // |
156 | // Do the calculations | |
157 | // Parameters: | |
158 | // hists Cache of histograms | |
159 | // vtxBin Vertex bin | |
160 | // | |
161 | // Return: | |
162 | // true on successs | |
163 | // | |
0bd4b00f | 164 | AliForwardCorrectionManager& fcm = AliForwardCorrectionManager::Instance(); |
7e4038b5 | 165 | |
0bd4b00f | 166 | UShort_t uvb = vtxbin; |
7e4038b5 | 167 | for (UShort_t d=1; d<=3; d++) { |
168 | UShort_t nr = (d == 1 ? 1 : 2); | |
169 | for (UShort_t q=0; q<nr; q++) { | |
72cc12cd | 170 | Char_t r = (q == 0 ? 'I' : 'O'); |
171 | TH2D* h = hists.Get(d,r); | |
172 | RingHistos* rh = GetRingHistos(d,r); | |
7ec4d843 | 173 | |
174 | if (fUseSecondaryMap) { | |
175 | TH2D* bg = fcm.GetSecondaryMap()->GetCorrection(d, r, uvb); | |
176 | if (!bg) { | |
177 | AliWarning(Form("No secondary correction for FMDM%d%c in vertex bin %d", | |
178 | d, r, uvb)); | |
179 | continue; | |
180 | } | |
181 | // Divide by primary/total ratio | |
182 | h->Divide(bg); | |
7e4038b5 | 183 | } |
7ec4d843 | 184 | if (fUseVertexBias) { |
185 | TH2D* ef = fcm.GetVertexBias()->GetCorrection(r, uvb); | |
186 | if (!ef) { | |
187 | AliWarning(Form("No event %s vertex bias correction in vertex bin %d", | |
188 | (r == 'I' || r == 'i' ? "inner" : "outer"), uvb)); | |
189 | continue; | |
190 | } | |
191 | // Divide by the event selection efficiency | |
192 | h->Divide(ef); | |
72cc12cd | 193 | } |
7ec4d843 | 194 | if (fUseAcceptance) { |
195 | TH2D* ac = fcm.GetAcceptance()->GetCorrection(d, r, uvb); | |
196 | if (!ac) { | |
197 | AliWarning(Form("No acceptance correction for FMD%d%c in vertex bin %d", | |
72cc12cd | 198 | d, r, uvb)); |
7ec4d843 | 199 | continue; |
200 | } | |
201 | // Divide by the acceptance correction | |
202 | h->Divide(ac); | |
7e4038b5 | 203 | } |
204 | ||
7e4038b5 | 205 | |
7ec4d843 | 206 | |
207 | ||
72cc12cd | 208 | |
81eda625 | 209 | if (fUseMergingEfficiency) { |
210 | if (!fcm.GetMergingEfficiency()) { | |
211 | AliWarning("No merging efficiencies"); | |
212 | continue; | |
213 | } | |
214 | TH1D* sf = fcm.GetMergingEfficiency()->GetCorrection(d,r,uvb); | |
215 | if (!fcm.GetMergingEfficiency()->GetCorrection(d,r,uvb)) { | |
216 | AliWarning(Form("No merging efficiency for FMD%d%c at vertex bin %d", | |
217 | d, r, uvb)); | |
218 | continue; | |
219 | } | |
7e4038b5 | 220 | |
81eda625 | 221 | |
222 | for (Int_t ieta = 1; ieta <= h->GetNbinsX(); ieta++) { | |
223 | Float_t c = sf->GetBinContent(ieta); | |
224 | Float_t ec = sf->GetBinError(ieta); | |
225 | ||
226 | if (c == 0) continue; | |
7e4038b5 | 227 | |
81eda625 | 228 | for (Int_t iphi = 1; iphi <= h->GetNbinsY(); iphi++) { |
229 | Double_t m = h->GetBinContent(ieta, iphi) / c; | |
230 | Double_t em = h->GetBinError(ieta, iphi); | |
7e4038b5 | 231 | |
81eda625 | 232 | Double_t e = TMath::Sqrt(em * em + (m * ec) * (m * ec)); |
233 | ||
234 | h->SetBinContent(ieta,iphi,m); | |
235 | h->SetBinError(ieta,iphi,e); | |
236 | } | |
7e4038b5 | 237 | } |
238 | } | |
7e4038b5 | 239 | rh->fDensity->Add(h); |
240 | } | |
241 | } | |
242 | ||
243 | return kTRUE; | |
244 | } | |
245 | ||
246 | //____________________________________________________________________ | |
247 | void | |
72cc12cd | 248 | AliFMDCorrector::ScaleHistograms(TList* dir, Int_t nEvents) |
7e4038b5 | 249 | { |
7984e5f7 | 250 | // |
251 | // Scale the histograms to the total number of events | |
252 | // Parameters: | |
253 | // dir Where the output is stored | |
254 | // nEvents Number of events | |
255 | // | |
7e4038b5 | 256 | if (nEvents <= 0) return; |
9d99b0dd | 257 | TList* d = static_cast<TList*>(dir->FindObject(GetName())); |
258 | if (!d) return; | |
7e4038b5 | 259 | |
260 | TIter next(&fRingHistos); | |
261 | RingHistos* o = 0; | |
9d99b0dd | 262 | while ((o = static_cast<RingHistos*>(next()))) |
263 | o->ScaleHistograms(d, nEvents); | |
7e4038b5 | 264 | } |
7e4038b5 | 265 | //____________________________________________________________________ |
266 | void | |
72cc12cd | 267 | AliFMDCorrector::DefineOutput(TList* dir) |
7e4038b5 | 268 | { |
269 | TList* d = new TList; | |
270 | d->SetName(GetName()); | |
271 | dir->Add(d); | |
272 | TIter next(&fRingHistos); | |
273 | RingHistos* o = 0; | |
274 | while ((o = static_cast<RingHistos*>(next()))) { | |
275 | o->Output(d); | |
276 | } | |
277 | } | |
278 | ||
0bd4b00f | 279 | //____________________________________________________________________ |
280 | void | |
72cc12cd | 281 | AliFMDCorrector::Print(Option_t* /* option */) const |
0bd4b00f | 282 | { |
7984e5f7 | 283 | // |
284 | // Print information | |
285 | // Parameters: | |
286 | // option Not used | |
287 | // | |
0bd4b00f | 288 | char ind[gROOT->GetDirLevel()+1]; |
289 | for (Int_t i = 0; i < gROOT->GetDirLevel(); i++) ind[i] = ' '; | |
290 | ind[gROOT->GetDirLevel()] = '\0'; | |
7ec4d843 | 291 | std::cout << ind << "AliFMDCorrector: " << GetName() << "\n" |
292 | << std::boolalpha | |
293 | << ind << " Use secondary maps: " << fUseSecondaryMap << "\n" | |
294 | << ind << " Use vertex bias: " << fUseVertexBias << "\n" | |
295 | << ind << " Use acceptance: " << fUseAcceptance << "\n" | |
296 | << ind << " Use merging efficiency: " << fUseMergingEfficiency | |
297 | << std::endl; | |
0bd4b00f | 298 | } |
299 | ||
7e4038b5 | 300 | //==================================================================== |
72cc12cd | 301 | AliFMDCorrector::RingHistos::RingHistos() |
9d99b0dd | 302 | : AliForwardUtil::RingHistos(), |
7e4038b5 | 303 | fDensity(0) |
7984e5f7 | 304 | { |
305 | // Constructor | |
306 | // | |
307 | // | |
308 | } | |
7e4038b5 | 309 | |
310 | //____________________________________________________________________ | |
72cc12cd | 311 | AliFMDCorrector::RingHistos::RingHistos(UShort_t d, Char_t r) |
9d99b0dd | 312 | : AliForwardUtil::RingHistos(d,r), |
7e4038b5 | 313 | fDensity(0) |
314 | { | |
7984e5f7 | 315 | // |
316 | // Constructor | |
317 | // Parameters: | |
318 | // d detector | |
319 | // r ring | |
320 | // | |
7e4038b5 | 321 | fDensity = new TH2D(Form("FMD%d%c_Primary_Density", d, r), |
322 | Form("in FMD%d%c", d, r), | |
323 | 200, -4, 6, (r == 'I' || r == 'i' ? 20 : 40), | |
324 | 0, 2*TMath::Pi()); | |
325 | fDensity->SetDirectory(0); | |
326 | fDensity->SetXTitle("#eta"); | |
327 | fDensity->SetYTitle("#phi [radians]"); | |
328 | fDensity->SetZTitle("Primary N_{ch} density"); | |
329 | } | |
330 | //____________________________________________________________________ | |
72cc12cd | 331 | AliFMDCorrector::RingHistos::RingHistos(const RingHistos& o) |
9d99b0dd | 332 | : AliForwardUtil::RingHistos(o), |
7e4038b5 | 333 | fDensity(o.fDensity) |
7984e5f7 | 334 | { |
335 | // | |
336 | // Copy constructor | |
337 | // Parameters: | |
338 | // o Object to copy from | |
339 | // | |
340 | } | |
7e4038b5 | 341 | |
342 | //____________________________________________________________________ | |
72cc12cd | 343 | AliFMDCorrector::RingHistos& |
344 | AliFMDCorrector::RingHistos::operator=(const RingHistos& o) | |
7e4038b5 | 345 | { |
7984e5f7 | 346 | // |
347 | // Assignment operator | |
348 | // Parameters: | |
349 | // o Object to assign from | |
350 | // | |
351 | // Return: | |
352 | // Reference to this | |
353 | // | |
9d99b0dd | 354 | AliForwardUtil::RingHistos::operator=(o); |
7e4038b5 | 355 | |
356 | if (fDensity) delete fDensity; | |
357 | ||
358 | fDensity = static_cast<TH2D*>(o.fDensity->Clone()); | |
359 | ||
360 | return *this; | |
361 | } | |
362 | //____________________________________________________________________ | |
72cc12cd | 363 | AliFMDCorrector::RingHistos::~RingHistos() |
7e4038b5 | 364 | { |
7984e5f7 | 365 | // |
366 | // Destructor | |
367 | // | |
7e4038b5 | 368 | if (fDensity) delete fDensity; |
369 | } | |
370 | ||
371 | //____________________________________________________________________ | |
372 | void | |
72cc12cd | 373 | AliFMDCorrector::RingHistos::Output(TList* dir) |
7e4038b5 | 374 | { |
7984e5f7 | 375 | // |
376 | // Make output | |
377 | // Parameters: | |
378 | // dir Where to put it | |
379 | // | |
9d99b0dd | 380 | TList* d = DefineOutputList(dir); |
7e4038b5 | 381 | d->Add(fDensity); |
9d99b0dd | 382 | } |
383 | ||
384 | //____________________________________________________________________ | |
385 | void | |
72cc12cd | 386 | AliFMDCorrector::RingHistos::ScaleHistograms(TList* dir, Int_t nEvents) |
9d99b0dd | 387 | { |
7984e5f7 | 388 | // |
389 | // Scale the histograms to the total number of events | |
390 | // Parameters: | |
391 | // dir where the output is stored | |
392 | // nEvents Number of events | |
393 | // | |
9d99b0dd | 394 | TList* l = GetOutputList(dir); |
395 | if (!l) return; | |
396 | ||
397 | TH1* density = GetOutputHist(l,Form("%s_Primary_Density", fName.Data())); | |
398 | if (density) density->Scale(1./nEvents); | |
7e4038b5 | 399 | } |
400 | ||
401 | //____________________________________________________________________ | |
402 | // | |
403 | // EOF | |
404 | // | |
405 | ||
406 | ||
407 |