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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | //_________________________________________________________________________ | |
17 | // Algorythm class to analyze PHOSv1 events: | |
18 | // Construct histograms and displays them. | |
19 | // IHEP CPV/PHOS reconstruction algorithm used. | |
20 | // Use the macro EditorBar.C for best access to the functionnalities | |
21 | //*-- | |
22 | //*-- Author: B. Polichtchouk (IHEP) | |
23 | ////////////////////////////////////////////////////////////////////////////// | |
24 | ||
25 | // --- ROOT system --- | |
26 | ||
27 | #include "TFile.h" | |
28 | #include "TH1.h" | |
29 | #include "TPad.h" | |
30 | #include "TH2.h" | |
31 | #include "TParticle.h" | |
32 | #include "TClonesArray.h" | |
33 | #include "TTree.h" | |
34 | #include "TMath.h" | |
35 | #include "TCanvas.h" | |
36 | #include "TStyle.h" | |
37 | ||
38 | // --- Standard library --- | |
39 | ||
40 | // --- AliRoot header files --- | |
41 | ||
42 | #include "AliRunLoader.h" | |
43 | #include "AliHeader.h" | |
44 | ||
45 | // --- PHOS header files --- | |
46 | #include "AliLog.h" | |
47 | #include "AliPHOSIhepAnalyze.h" | |
48 | #include "AliPHOSDigit.h" | |
49 | #include "AliPHOSRecParticle.h" | |
50 | #include "AliPHOSLoader.h" | |
51 | #include "AliPHOSHit.h" | |
52 | #include "AliPHOSImpact.h" | |
53 | #include "AliPHOSvImpacts.h" | |
54 | #include "AliPHOSCpvRecPoint.h" | |
55 | #include "AliRun.h" | |
56 | #include "AliPHOSGeometry.h" | |
57 | #include "AliPHOSEvalRecPoint.h" | |
58 | ||
59 | ClassImp(AliPHOSIhepAnalyze) | |
60 | ||
61 | //____________________________________________________________________________ | |
62 | AliPHOSIhepAnalyze::AliPHOSIhepAnalyze(): | |
63 | fRunLoader(0), | |
64 | fFileName() | |
65 | { | |
66 | } | |
67 | ||
68 | //____________________________________________________________________________ | |
69 | AliPHOSIhepAnalyze::AliPHOSIhepAnalyze(Text_t * name) : | |
70 | fRunLoader(0), | |
71 | fFileName(name) | |
72 | { | |
73 | // Constructor: open a header file | |
74 | fRunLoader = AliRunLoader::Open(fFileName); | |
75 | if (fRunLoader == 0x0) | |
76 | { | |
77 | AliFatal(Form("Can not load event from file %s",name)); | |
78 | } | |
79 | } | |
80 | ||
81 | //____________________________________________________________________________ | |
82 | void AliPHOSIhepAnalyze::AnalyzeCPV1(Int_t Nevents) | |
83 | { | |
84 | // | |
85 | // Analyzes CPV characteristics: resolutions, cluster multiplicity, | |
86 | // cluster lengths along Z and Phi. | |
87 | // Author: Yuri Kharlov | |
88 | // 9 October 2000 | |
89 | // Modified by Boris Polichtchouk, 3.07.2001 | |
90 | // | |
91 | ||
92 | // Book histograms | |
93 | ||
94 | TH1F *hDx = new TH1F("hDx" ,"CPV x-resolution@reconstruction",100,-5. , 5.); | |
95 | TH1F *hDz = new TH1F("hDz" ,"CPV z-resolution@reconstruction",100,-5. , 5.); | |
96 | TH1F *hChi2 = new TH1F("hChi2" ,"Chi2/dof of one-gamma fit",30, 0. , 10.); | |
97 | TH1S *hNrp = new TH1S("hNrp" ,"CPV rec.point multiplicity", 21,-0.5,20.5); | |
98 | TH1S *hNrpX = new TH1S("hNrpX","CPV rec.point Phi-length" , 21,-0.5,20.5); | |
99 | TH1S *hNrpZ = new TH1S("hNrpZ","CPV rec.point Z-length" , 21,-0.5,20.5); | |
100 | ||
101 | TH1F *hEg = new TH1F("hEg" ,"Energies of impacts",30,0.,6.); | |
102 | TH1F *hEr = new TH1F("hEr" ,"Amplitudes of rec. points",50,0.,20.); | |
103 | ||
104 | TList * fCpvImpacts ; | |
105 | TBranch * branchCPVimpacts; | |
106 | ||
107 | ||
108 | ||
109 | AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
110 | if ( please == 0 ) | |
111 | { | |
112 | AliError(Form("Could not obtain the Loader object !")); | |
113 | return ; | |
114 | } | |
115 | ||
116 | AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ; | |
117 | ||
118 | AliInfo(Form("Start CPV Analysis-1. Resolutions, cluster multiplicity and lengths")) ; | |
119 | for ( Int_t ievent=0; ievent<Nevents; ievent++) { | |
120 | ||
121 | Int_t nTotalGen = 0; | |
122 | Int_t nChargedGen = 0; | |
123 | ||
124 | Int_t ntracks = gAlice->GetEvent(ievent); | |
125 | AliInfo(Form(">>>>>>>Event %d .<<<<<<<", ievent)) ; | |
126 | ||
127 | /******************************************************************/ | |
128 | TTree* treeH = please->TreeH(); | |
129 | if (treeH == 0x0) | |
130 | { | |
131 | AliError(Form("Can not get TreeH")); | |
132 | return; | |
133 | } | |
134 | /******************************************************************/ | |
135 | ||
136 | // Get branch of CPV impacts | |
137 | if (! (branchCPVimpacts =treeH->GetBranch("PHOSCpvImpacts")) ) { | |
138 | AliWarning(Form("Couldn't find branch PHOSCpvImpacts. Exit.")) ; | |
139 | return; | |
140 | } | |
141 | ||
142 | // Create and fill arrays of hits for each CPV module | |
143 | ||
144 | Int_t nOfModules = phosgeom->GetNModules(); | |
145 | TClonesArray **hitsPerModule = new TClonesArray *[nOfModules]; | |
146 | Int_t iModule = 0; | |
147 | for (iModule=0; iModule < nOfModules; iModule++) | |
148 | hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100); | |
149 | ||
150 | TClonesArray *impacts; | |
151 | AliPHOSImpact *impact; | |
152 | TLorentzVector p; | |
153 | ||
154 | // First go through all primary tracks and fill the arrays | |
155 | // of hits per each CPV module | |
156 | ||
157 | for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
158 | branchCPVimpacts ->SetAddress(&fCpvImpacts); | |
159 | branchCPVimpacts ->GetEntry(itrack,0); | |
160 | ||
161 | for (iModule=0; iModule < nOfModules; iModule++) { | |
162 | impacts = (TClonesArray *)fCpvImpacts->At(iModule); | |
163 | // Do loop over impacts in the module | |
164 | for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
165 | impact=(AliPHOSImpact*)impacts->At(iImpact); | |
166 | hEg->Fill(impact->GetMomentum().E()); | |
167 | TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule]; | |
168 | if(IsCharged(impact->GetPid())) nChargedGen++; | |
169 | new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact); | |
170 | } | |
171 | } | |
172 | fCpvImpacts->Clear(); | |
173 | } | |
174 | for (iModule=0; iModule < nOfModules; iModule++) { | |
175 | Int_t nsum = hitsPerModule[iModule]->GetEntriesFast(); | |
176 | printf("CPV module %d has %d impacts\n",iModule,nsum); | |
177 | nTotalGen += nsum; | |
178 | } | |
179 | ||
180 | // Then go through reconstructed points and for each find | |
181 | // the closeset hit | |
182 | // The distance from the rec.point to the closest hit | |
183 | // gives the coordinate resolution of the CPV | |
184 | ||
185 | fRunLoader->GetEvent(ievent); | |
186 | TIter nextRP(please->CpvRecPoints()) ; | |
187 | AliPHOSCpvRecPoint *cpvRecPoint ; | |
188 | Float_t xgen, ygen, zgen; | |
189 | while( ( cpvRecPoint = (AliPHOSCpvRecPoint *)nextRP() ) ) { | |
190 | ||
191 | Float_t chi2dof = ((AliPHOSEvalRecPoint*)cpvRecPoint)->Chi2Dof(); | |
192 | hChi2->Fill(chi2dof); | |
193 | hEr->Fill(cpvRecPoint->GetEnergy()); | |
194 | ||
195 | TVector3 locpos; | |
196 | cpvRecPoint->GetLocalPosition(locpos); | |
197 | Int_t phosModule = cpvRecPoint->GetPHOSMod(); | |
198 | Int_t rpMult = cpvRecPoint->GetMultiplicity(); | |
199 | Int_t rpMultX, rpMultZ; | |
200 | cpvRecPoint->GetClusterLengths(rpMultX,rpMultZ); | |
201 | Float_t xrec = locpos.X(); | |
202 | Float_t zrec = locpos.Z(); | |
203 | Float_t dxmin = 1.e+10; | |
204 | Float_t dzmin = 1.e+10; | |
205 | Float_t r2min = 1.e+10; | |
206 | Float_t r2; | |
207 | ||
208 | Int_t nCPVhits = (hitsPerModule[phosModule-1])->GetEntriesFast(); | |
209 | Float_t locImpX=1e10,locImpZ=1e10; // local coords of closest impact | |
210 | Float_t gImpX=1e10, gImpZ=1e10,gImpY=1e10; // global coords of closest impact | |
211 | for (Int_t ihit=0; ihit<nCPVhits; ihit++) { | |
212 | impact = (AliPHOSImpact*)(hitsPerModule[phosModule-1])->UncheckedAt(ihit); | |
213 | xgen = impact->X(); | |
214 | zgen = impact->Z(); | |
215 | ygen = impact->Y(); | |
216 | ||
217 | //Transform to the local ref.frame | |
218 | Float_t phig = phosgeom->GetPHOSAngle(phosModule); | |
219 | Float_t phi = TMath::Pi()/180*phig; | |
220 | Float_t distanceIPtoCPV = phosgeom->GetIPtoOuterCoverDistance() - | |
221 | (phosgeom->GetFTPosition(1)+ | |
222 | phosgeom->GetFTPosition(2)+ | |
223 | phosgeom->GetCPVTextoliteThickness())/2; | |
224 | Float_t xoL,yoL,zoL ; | |
225 | // xoL = xgen*TMath::Cos(phig)+ygen*TMath::Sin(phig) ; | |
226 | // yoL = -xgen*TMath::Sin(phig)+ygen*TMath::Cos(phig) + distanceIPtoCPV; | |
227 | xoL = xgen*TMath::Cos(phi)-ygen*TMath::Sin(phi) ; | |
228 | yoL = xgen*TMath::Sin(phi)+ygen*TMath::Cos(phi) + distanceIPtoCPV; | |
229 | zoL = zgen; | |
230 | ||
231 | r2 = TMath::Power((xoL-xrec),2) + TMath::Power((zoL-zrec),2); | |
232 | if ( r2 < r2min ) { | |
233 | r2min = r2; | |
234 | dxmin = xoL - xrec; | |
235 | dzmin = zoL - zrec; | |
236 | locImpX = xoL; | |
237 | locImpZ = zoL; | |
238 | gImpX = xgen; | |
239 | gImpZ = zgen; | |
240 | gImpY = ygen; | |
241 | } | |
242 | } | |
243 | AliInfo(Form("Impact global (X,Z,Y) = %f %f %f", gImpX, gImpZ, gImpY)); | |
244 | AliInfo(Form("Impact local (X,Z) = %f %f", locImpX, locImpZ)); | |
245 | AliInfo(Form("Reconstructed (X,Z) = %f %f", xrec, zrec)); | |
246 | AliInfo(Form("dxmin %f dzmin %f", dxmin, dzmin)); | |
247 | hDx ->Fill(dxmin); | |
248 | hDz ->Fill(dzmin); | |
249 | // hDr ->Fill(TMath::Sqrt(r2min)); | |
250 | hNrp ->Fill(rpMult); | |
251 | hNrpX->Fill(rpMultX); | |
252 | hNrpZ->Fill(rpMultZ); | |
253 | } | |
254 | delete [] hitsPerModule; | |
255 | ||
256 | AliInfo(Form("++++ Event %d : total %d impacts, %d charged impacts and %d rec. points.", | |
257 | ievent, nTotalGen, nChargedGen, please->CpvRecPoints()->GetEntries())) ; | |
258 | } | |
259 | // Save histograms | |
260 | ||
261 | Text_t outputname[80] ; | |
262 | snprintf(outputname,80,"%s.analyzed",GetFileName().Data()); | |
263 | TFile output(outputname,"RECREATE"); | |
264 | output.cd(); | |
265 | ||
266 | // Plot histograms | |
267 | ||
268 | TCanvas *cpvCanvas = new TCanvas("Cpv1","CPV analysis-I",20,20,800,600); | |
269 | gStyle->SetOptStat(111111); | |
270 | gStyle->SetOptFit(1); | |
271 | gStyle->SetOptDate(1); | |
272 | cpvCanvas->Divide(3,3); | |
273 | ||
274 | cpvCanvas->cd(1); | |
275 | gPad->SetFillColor(10); | |
276 | hNrp->SetFillColor(16); | |
277 | hNrp->Draw(); | |
278 | ||
279 | cpvCanvas->cd(2); | |
280 | gPad->SetFillColor(10); | |
281 | hNrpX->SetFillColor(16); | |
282 | hNrpX->Draw(); | |
283 | ||
284 | cpvCanvas->cd(3); | |
285 | gPad->SetFillColor(10); | |
286 | hNrpZ->SetFillColor(16); | |
287 | hNrpZ->Draw(); | |
288 | ||
289 | cpvCanvas->cd(4); | |
290 | gPad->SetFillColor(10); | |
291 | hDx->SetFillColor(16); | |
292 | hDx->Fit("gaus"); | |
293 | hDx->Draw(); | |
294 | ||
295 | cpvCanvas->cd(5); | |
296 | gPad->SetFillColor(10); | |
297 | hDz->SetFillColor(16); | |
298 | hDz->Fit("gaus"); | |
299 | hDz->Draw(); | |
300 | ||
301 | cpvCanvas->cd(6); | |
302 | gPad->SetFillColor(10); | |
303 | hChi2->SetFillColor(16); | |
304 | hChi2->Draw(); | |
305 | ||
306 | cpvCanvas->cd(7); | |
307 | gPad->SetFillColor(10); | |
308 | hEg->SetFillColor(16); | |
309 | hEg->Draw(); | |
310 | ||
311 | cpvCanvas->cd(8); | |
312 | gPad->SetFillColor(10); | |
313 | hEr->SetFillColor(16); | |
314 | hEr->Draw(); | |
315 | ||
316 | cpvCanvas->Write(0,kOverwrite); | |
317 | ||
318 | } | |
319 | ||
320 | ||
321 | void AliPHOSIhepAnalyze::AnalyzeEMC1(Int_t Nevents) | |
322 | { | |
323 | // | |
324 | // Analyzes Emc characteristics: resolutions, cluster multiplicity, | |
325 | // cluster lengths along Z and Phi. | |
326 | // Author: Boris Polichtchouk, 24.08.2001 | |
327 | // | |
328 | ||
329 | // Book histograms | |
330 | ||
331 | TH1F *hDx = new TH1F("hDx" ,"EMC x-resolution@reconstruction",100,-5. , 5.); | |
332 | TH1F *hDz = new TH1F("hDz" ,"EMC z-resolution@reconstruction",100,-5. , 5.); | |
333 | TH1F *hChi2 = new TH1F("hChi2" ,"Chi2/dof of one-gamma fit",30, 0. , 3.); | |
334 | TH1S *hNrp = new TH1S("hNrp" ,"EMC rec.point multiplicity", 21,-0.5,20.5); | |
335 | TH1S *hNrpX = new TH1S("hNrpX","EMC rec.point Phi-length" , 21,-0.5,20.5); | |
336 | TH1S *hNrpZ = new TH1S("hNrpZ","EMC rec.point Z-length" , 21,-0.5,20.5); | |
337 | ||
338 | TList * fEmcImpacts ; | |
339 | TBranch * branchEMCimpacts; | |
340 | ||
341 | AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
342 | if ( please == 0 ) | |
343 | { | |
344 | AliError(Form("Could not obtain the Loader object !")); | |
345 | return ; | |
346 | } | |
347 | ||
348 | AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ; | |
349 | ||
350 | AliInfo(Form("Start EMC Analysis-1. Resolutions, cluster multiplicity and lengths")); | |
351 | for ( Int_t ievent=0; ievent<Nevents; ievent++) { | |
352 | ||
353 | Int_t nTotalGen = 0; | |
354 | ||
355 | Int_t ntracks = gAlice->GetEvent(ievent); | |
356 | ||
357 | AliInfo(Form(" >>>>>>>Event %d .<<<<<<<", ievent)) ; | |
358 | ||
359 | TTree* treeH = please->TreeH(); | |
360 | if (treeH == 0x0) | |
361 | { | |
362 | AliError(Form("Can not get TreeH")); | |
363 | return; | |
364 | } | |
365 | ||
366 | ||
367 | // Get branch of EMC impacts | |
368 | if (! (branchEMCimpacts =treeH->GetBranch("PHOSEmcImpacts")) ) { | |
369 | AliWarning(Form(" Couldn't find branch PHOSEmcImpacts. Exit.")); | |
370 | return; | |
371 | } | |
372 | ||
373 | // Create and fill arrays of hits for each EMC module | |
374 | ||
375 | Int_t nOfModules = phosgeom->GetNModules(); | |
376 | TClonesArray **hitsPerModule = new TClonesArray *[nOfModules]; | |
377 | Int_t iModule = 0; | |
378 | for (iModule=0; iModule < nOfModules; iModule++) | |
379 | hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100); | |
380 | ||
381 | TClonesArray *impacts; | |
382 | AliPHOSImpact *impact; | |
383 | TLorentzVector p; | |
384 | ||
385 | // First go through all primary tracks and fill the arrays | |
386 | // of hits per each EMC module | |
387 | ||
388 | for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
389 | branchEMCimpacts ->SetAddress(&fEmcImpacts); | |
390 | branchEMCimpacts ->GetEntry(itrack,0); | |
391 | ||
392 | for (iModule=0; iModule < nOfModules; iModule++) { | |
393 | impacts = (TClonesArray *)fEmcImpacts->At(iModule); | |
394 | // Do loop over impacts in the module | |
395 | for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
396 | impact=(AliPHOSImpact*)impacts->At(iImpact); | |
397 | TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule]; | |
398 | new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact); | |
399 | } | |
400 | } | |
401 | fEmcImpacts->Clear(); | |
402 | } | |
403 | for (iModule=0; iModule < nOfModules; iModule++) { | |
404 | Int_t nsum = hitsPerModule[iModule]->GetEntriesFast(); | |
405 | printf("EMC module %d has %d hits\n",iModule,nsum); | |
406 | nTotalGen += nsum; | |
407 | } | |
408 | ||
409 | // Then go through reconstructed points and for each find | |
410 | // the closeset hit | |
411 | // The distance from the rec.point to the closest hit | |
412 | // gives the coordinate resolution of the EMC | |
413 | ||
414 | fRunLoader->GetEvent(ievent); | |
415 | TIter nextRP(please->EmcRecPoints()) ; | |
416 | AliPHOSEmcRecPoint *emcRecPoint ; | |
417 | Float_t xgen, ygen, zgen; | |
418 | while( ( emcRecPoint = (AliPHOSEmcRecPoint *)nextRP() ) ) { | |
419 | ||
420 | Float_t chi2dof = ((AliPHOSEvalRecPoint*)emcRecPoint)->Chi2Dof(); | |
421 | hChi2->Fill(chi2dof); | |
422 | ||
423 | TVector3 locpos; | |
424 | emcRecPoint->GetLocalPosition(locpos); | |
425 | Int_t phosModule = emcRecPoint->GetPHOSMod(); | |
426 | Int_t rpMult = emcRecPoint->GetMultiplicity(); | |
427 | Int_t rpMultX, rpMultZ; | |
428 | ((AliPHOSEvalRecPoint*)emcRecPoint)->GetClusterLengths(rpMultX,rpMultZ); | |
429 | Float_t xrec = locpos.X(); | |
430 | Float_t zrec = locpos.Z(); | |
431 | Float_t dxmin = 1.e+10; | |
432 | Float_t dzmin = 1.e+10; | |
433 | Float_t r2min = 1.e+10; | |
434 | Float_t r2; | |
435 | ||
436 | Int_t nEMChits = (hitsPerModule[phosModule-1])->GetEntriesFast(); | |
437 | Float_t locImpX=1e10,locImpZ=1e10; // local coords of closest impact | |
438 | Float_t gImpX=1e10, gImpZ=1e10,gImpY=1e10; // global coords of closest impact | |
439 | for (Int_t ihit=0; ihit<nEMChits; ihit++) { | |
440 | impact = (AliPHOSImpact*)(hitsPerModule[phosModule-1])->UncheckedAt(ihit); | |
441 | xgen = impact->X(); | |
442 | zgen = impact->Z(); | |
443 | ygen = impact->Y(); | |
444 | ||
445 | ||
446 | //Transform to the local ref.frame | |
447 | Float_t phig = phosgeom->GetPHOSAngle(phosModule); | |
448 | Float_t phi = TMath::Pi()/180*phig; | |
449 | Float_t distanceIPtoEMC = phosgeom->GetIPtoCrystalSurface(); | |
450 | Float_t xoL,yoL,zoL ; | |
451 | // xoL = xgen*TMath::Cos(phig)+ygen*TMath::Sin(phig) ; | |
452 | // yoL = -xgen*TMath::Sin(phig)+ygen*TMath::Cos(phig) + distanceIPtoEMC; | |
453 | xoL = xgen*TMath::Cos(phi)-ygen*TMath::Sin(phi) ; | |
454 | yoL = xgen*TMath::Sin(phi)+ygen*TMath::Cos(phi) + distanceIPtoEMC; | |
455 | zoL = zgen; | |
456 | ||
457 | r2 = TMath::Power((xoL-xrec),2) + TMath::Power((zoL-zrec),2); | |
458 | if ( r2 < r2min ) { | |
459 | r2min = r2; | |
460 | dxmin = xoL - xrec; | |
461 | dzmin = zoL - zrec; | |
462 | locImpX = xoL; | |
463 | locImpZ = zoL; | |
464 | gImpX = xgen; | |
465 | gImpZ = zgen; | |
466 | gImpY = ygen; | |
467 | } | |
468 | } | |
469 | AliInfo(Form(" Impact global (X,Z,Y) = %f %f %f", gImpX, gImpZ, gImpY)); | |
470 | AliInfo(Form(" Impact local (X,Z) = %f %f", locImpX, locImpZ)); | |
471 | AliInfo(Form(" Reconstructed (X,Z) = %f %f", xrec, zrec)); | |
472 | AliInfo(Form(" dxmin %f dzmin %f", dxmin, dzmin)) ; | |
473 | hDx ->Fill(dxmin); | |
474 | hDz ->Fill(dzmin); | |
475 | // hDr ->Fill(TMath::Sqrt(r2min)); | |
476 | hNrp ->Fill(rpMult); | |
477 | hNrpX->Fill(rpMultX); | |
478 | hNrpZ->Fill(rpMultZ); | |
479 | } | |
480 | delete [] hitsPerModule; | |
481 | ||
482 | AliInfo(Form("++++ Event %d : total %d impacts, %d Emc rec. points.", | |
483 | ievent, nTotalGen, please->EmcRecPoints()->GetEntriesFast())) ; | |
484 | ||
485 | } | |
486 | // Save histograms | |
487 | ||
488 | Text_t outputname[80] ; | |
489 | snprintf(outputname,80,"%s.analyzed",GetFileName().Data()); | |
490 | TFile output(outputname,"update"); | |
491 | output.cd(); | |
492 | ||
493 | // Plot histograms | |
494 | ||
495 | TCanvas *emcCanvas = new TCanvas("Emc1","EMC analysis-I",20,20,800,400); | |
496 | gStyle->SetOptStat(111111); | |
497 | gStyle->SetOptFit(1); | |
498 | gStyle->SetOptDate(1); | |
499 | emcCanvas->Divide(3,2); | |
500 | ||
501 | emcCanvas->cd(1); | |
502 | gPad->SetFillColor(10); | |
503 | hNrp->SetFillColor(16); | |
504 | hNrp->Draw(); | |
505 | ||
506 | emcCanvas->cd(2); | |
507 | gPad->SetFillColor(10); | |
508 | hNrpX->SetFillColor(16); | |
509 | hNrpX->Draw(); | |
510 | ||
511 | emcCanvas->cd(3); | |
512 | gPad->SetFillColor(10); | |
513 | hNrpZ->SetFillColor(16); | |
514 | hNrpZ->Draw(); | |
515 | ||
516 | emcCanvas->cd(4); | |
517 | gPad->SetFillColor(10); | |
518 | hDx->SetFillColor(16); | |
519 | hDx->Fit("gaus"); | |
520 | hDx->Draw(); | |
521 | ||
522 | emcCanvas->cd(5); | |
523 | gPad->SetFillColor(10); | |
524 | hDz->SetFillColor(16); | |
525 | hDz->Fit("gaus"); | |
526 | hDz->Draw(); | |
527 | ||
528 | emcCanvas->cd(6); | |
529 | gPad->SetFillColor(10); | |
530 | hChi2->SetFillColor(16); | |
531 | hChi2->Draw(); | |
532 | ||
533 | emcCanvas->Write(0,kOverwrite); | |
534 | } | |
535 | ||
536 | //____________________________________________________________________________ | |
537 | void AliPHOSIhepAnalyze::AnalyzeCPV2(Int_t Nevents) | |
538 | { | |
539 | // CPV analysis - part II. | |
540 | // Ratio of combinatoric distances between generated | |
541 | // and reconstructed hits. | |
542 | // Author: Boris Polichtchouk (polishchuk@mx.ihep.su) | |
543 | // 24 March 2001 | |
544 | ||
545 | ||
546 | TH1F* hDrijCPVr = new TH1F("Drij_cpv_r","Distance between reconstructed hits in CPV",140,0,50); | |
547 | TH1F* hDrijCPVg = new TH1F("Drij_cpv_g","Distance between generated hits in CPV",140,0,50); | |
548 | TH1F* hDrijCPVratio = new TH1F("Drij_cpv_ratio","R_{ij}^{rec}/R_{ij}^{gen} in CPV",140,0,50); | |
549 | ||
550 | // TH1F* hT0 = new TH1F("hT0","Type of entering particle",20000,-10000,10000); | |
551 | ||
552 | hDrijCPVr->Sumw2(); | |
553 | hDrijCPVg->Sumw2(); | |
554 | hDrijCPVratio->Sumw2(); //correct treatment of errors | |
555 | ||
556 | TList * fCpvImpacts = new TList(); | |
557 | TBranch * branchCPVimpacts; | |
558 | ||
559 | AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
560 | if ( please == 0 ) | |
561 | { | |
562 | AliError(Form("Could not obtain the Loader object !")); | |
563 | return ; | |
564 | } | |
565 | AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ; | |
566 | fRunLoader->LoadHeader(); | |
567 | ||
568 | for (Int_t nev=0; nev<Nevents; nev++) | |
569 | { | |
570 | printf("\n=================== Event %10d ===================\n",nev); | |
571 | fRunLoader->GetEvent(nev); | |
572 | Int_t ntracks = fRunLoader->GetHeader()->GetNtrack(); | |
573 | ||
574 | Int_t nRecCPV = 0; // Reconstructed points in event | |
575 | Int_t nGenCPV = 0; // Impacts in event | |
576 | ||
577 | // Get branch of CPV impacts | |
578 | TTree* treeH = please->TreeH(); | |
579 | if (treeH == 0x0) | |
580 | { | |
581 | AliError(Form("Can not get TreeH")); | |
582 | return; | |
583 | } | |
584 | ||
585 | if (! (branchCPVimpacts =treeH->GetBranch("PHOSCpvImpacts")) ) return; | |
586 | ||
587 | // Create and fill arrays of hits for each CPV module | |
588 | Int_t nOfModules = phosgeom->GetNModules(); | |
589 | TClonesArray **hitsPerModule = new TClonesArray *[nOfModules]; | |
590 | Int_t iModule = 0; | |
591 | for (iModule=0; iModule < nOfModules; iModule++) | |
592 | hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100); | |
593 | ||
594 | TClonesArray *impacts; | |
595 | AliPHOSImpact *impact; | |
596 | ||
597 | for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
598 | branchCPVimpacts ->SetAddress(&fCpvImpacts); | |
599 | AliInfo(Form(" branchCPVimpacts ->SetAddress(&fCpvImpacts) OK.")); | |
600 | branchCPVimpacts ->GetEntry(itrack,0); | |
601 | ||
602 | for (iModule=0; iModule < nOfModules; iModule++) { | |
603 | impacts = (TClonesArray *)fCpvImpacts->At(iModule); | |
604 | // Do loop over impacts in the module | |
605 | for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
606 | impact=(AliPHOSImpact*)impacts->At(iImpact); | |
607 | TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule]; | |
608 | if(IsCharged(impact->GetPid())) | |
609 | new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact); | |
610 | } | |
611 | } | |
612 | fCpvImpacts->Clear(); | |
613 | } | |
614 | ||
615 | for (iModule=0; iModule < nOfModules; iModule++) { | |
616 | Int_t nsum = hitsPerModule[iModule]->GetEntriesFast(); | |
617 | printf("CPV module %d has %d hits\n",iModule,nsum); | |
618 | ||
619 | AliPHOSImpact* genHit1; | |
620 | AliPHOSImpact* genHit2; | |
621 | Int_t irp1,irp2; | |
622 | for(irp1=0; irp1< nsum; irp1++) | |
623 | { | |
624 | genHit1 = (AliPHOSImpact*)((hitsPerModule[iModule])->At(irp1)); | |
625 | for(irp2 = irp1+1; irp2<nsum; irp2++) | |
626 | { | |
627 | genHit2 = (AliPHOSImpact*)((hitsPerModule[iModule])->At(irp2)); | |
628 | Float_t dx = genHit1->X() - genHit2->X(); | |
629 | Float_t dz = genHit1->Z() - genHit2->Z(); | |
630 | Float_t dr = TMath::Sqrt(dx*dx + dz*dz); | |
631 | hDrijCPVg->Fill(dr); | |
632 | // AliInfo(Form("(dx dz dr): %f %f", dx, dz)); | |
633 | } | |
634 | } | |
635 | } | |
636 | ||
637 | ||
638 | //--------- Combinatoric distance between rec. hits in CPV | |
639 | ||
640 | TObjArray* cpvRecPoints = please->CpvRecPoints(); | |
641 | nRecCPV = cpvRecPoints->GetEntriesFast(); | |
642 | ||
643 | if(nRecCPV) | |
644 | { | |
645 | AliPHOSCpvRecPoint* recHit1; | |
646 | AliPHOSCpvRecPoint* recHit2; | |
647 | TIter nextCPVrec1(cpvRecPoints); | |
648 | while(TObject* obj1 = nextCPVrec1() ) | |
649 | { | |
650 | TIter nextCPVrec2(cpvRecPoints); | |
651 | while (TObject* obj2 = nextCPVrec2()) | |
652 | { | |
653 | if(!obj2->IsEqual(obj1)) | |
654 | { | |
655 | recHit1 = (AliPHOSCpvRecPoint*)obj1; | |
656 | recHit2 = (AliPHOSCpvRecPoint*)obj2; | |
657 | TVector3 locpos1; | |
658 | TVector3 locpos2; | |
659 | recHit1->GetLocalPosition(locpos1); | |
660 | recHit2->GetLocalPosition(locpos2); | |
661 | Float_t dx = locpos1.X() - locpos2.X(); | |
662 | Float_t dz = locpos1.Z() - locpos2.Z(); | |
663 | Float_t dr = TMath::Sqrt(dx*dx + dz*dz); | |
664 | if(recHit1->GetPHOSMod() == recHit2->GetPHOSMod()) | |
665 | hDrijCPVr->Fill(dr); | |
666 | } | |
667 | } | |
668 | } | |
669 | } | |
670 | ||
671 | AliInfo(Form(" Event %d . Total of %d hits, %d rec.points.", | |
672 | nev, nGenCPV, nRecCPV)) ; | |
673 | ||
674 | delete [] hitsPerModule; | |
675 | ||
676 | } // End of loop over events. | |
677 | ||
678 | ||
679 | // hDrijCPVg->Draw(); | |
680 | // hDrijCPVr->Draw(); | |
681 | hDrijCPVratio->Divide(hDrijCPVr,hDrijCPVg); | |
682 | hDrijCPVratio->Draw(); | |
683 | ||
684 | // hT0->Draw(); | |
685 | ||
686 | } | |
687 | ||
688 | ||
689 | void AliPHOSIhepAnalyze::CpvSingle(Int_t nevents) | |
690 | { | |
691 | // Distributions of coordinates and cluster lengths of rec. points | |
692 | // in the case of single initial particle. | |
693 | ||
694 | TH1F* hZr = new TH1F("Zrec","Reconstructed Z distribution",150,-5,5); | |
695 | TH1F* hXr = new TH1F("Xrec","Reconstructed X distribution",150,-14,-2); | |
696 | TH1F *hChi2 = new TH1F("hChi2" ,"Chi2/dof of one-gamma fit",100, 0. , 20.); | |
697 | ||
698 | TH1S *hNrp = new TH1S("hNrp" ,"CPV rec.point multiplicity",21,-0.5,20.5); | |
699 | TH1S *hNrpX = new TH1S("hNrpX","CPV rec.point Phi-length" ,21,-0.5,20.5); | |
700 | TH1S *hNrpZ = new TH1S("hNrpZ","CPV rec.point Z-length" ,21,-0.5,20.5); | |
701 | ||
702 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
703 | if ( gime == 0 ) | |
704 | { | |
705 | AliError(Form("Could not obtain the Loader object !")); | |
706 | return ; | |
707 | } | |
708 | ||
709 | for(Int_t ievent=0; ievent<nevents; ievent++) | |
710 | { | |
711 | fRunLoader->GetEvent(ievent); | |
712 | if(gime->CpvRecPoints()->GetEntriesFast()>1) continue; | |
713 | ||
714 | AliPHOSCpvRecPoint* pt = (AliPHOSCpvRecPoint*)(gime->CpvRecPoints())->At(0); | |
715 | if(pt) { | |
716 | TVector3 lpos; | |
717 | pt->GetLocalPosition(lpos); | |
718 | hXr->Fill(lpos.X()); | |
719 | hZr->Fill(lpos.Z()); | |
720 | ||
721 | Int_t rpMult = pt->GetMultiplicity(); | |
722 | hNrp->Fill(rpMult); | |
723 | Int_t rpMultX, rpMultZ; | |
724 | pt->GetClusterLengths(rpMultX,rpMultZ); | |
725 | hNrpX->Fill(rpMultX); | |
726 | hNrpZ->Fill(rpMultZ); | |
727 | hChi2->Fill(((AliPHOSEvalRecPoint*)pt)->Chi2Dof()); | |
728 | AliInfo(Form("+++++ Event %d . (Mult,MultX,MultZ) = %d %d %d +++++", | |
729 | ievent, rpMult, rpMultX, rpMultZ)) ; | |
730 | ||
731 | } | |
732 | ||
733 | } | |
734 | ||
735 | Text_t outputname[80] ; | |
736 | snprintf(outputname,80,"%s.analyzed.single",GetFileName().Data()); | |
737 | TFile output(outputname,"RECREATE"); | |
738 | output.cd(); | |
739 | ||
740 | // Plot histograms | |
741 | TCanvas *cpvCanvas = new TCanvas("SingleParticle","Single particle events",20,20,800,400); | |
742 | gStyle->SetOptStat(111111); | |
743 | gStyle->SetOptFit(1); | |
744 | gStyle->SetOptDate(1); | |
745 | cpvCanvas->Divide(3,2); | |
746 | ||
747 | cpvCanvas->cd(1); | |
748 | gPad->SetFillColor(10); | |
749 | hXr->SetFillColor(16); | |
750 | hXr->Draw(); | |
751 | ||
752 | cpvCanvas->cd(2); | |
753 | gPad->SetFillColor(10); | |
754 | hZr->SetFillColor(16); | |
755 | hZr->Draw(); | |
756 | ||
757 | cpvCanvas->cd(3); | |
758 | gPad->SetFillColor(10); | |
759 | hChi2->SetFillColor(16); | |
760 | hChi2->Draw(); | |
761 | ||
762 | cpvCanvas->cd(4); | |
763 | gPad->SetFillColor(10); | |
764 | hNrp->SetFillColor(16); | |
765 | hNrp->Draw(); | |
766 | ||
767 | cpvCanvas->cd(5); | |
768 | gPad->SetFillColor(10); | |
769 | hNrpX->SetFillColor(16); | |
770 | hNrpX->Draw(); | |
771 | ||
772 | cpvCanvas->cd(6); | |
773 | gPad->SetFillColor(10); | |
774 | hNrpZ->SetFillColor(16); | |
775 | hNrpZ->Draw(); | |
776 | ||
777 | cpvCanvas->Write(0,kOverwrite); | |
778 | ||
779 | } | |
780 | ||
781 | void AliPHOSIhepAnalyze::HitsCPV(Int_t nev) | |
782 | { | |
783 | // Cumulative list of charged CPV impacts in event nev. | |
784 | ||
785 | AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
786 | if ( please == 0 ) | |
787 | { | |
788 | AliError(Form("Could not obtain the Loader object !")); | |
789 | return ; | |
790 | } | |
791 | ||
792 | ||
793 | printf("\n=================== Event %10d ===================\n",nev); | |
794 | //16.03.2011: DP. Code below seems to be obsollete | |
795 | //Comment it to sutisfy Coverity | |
796 | /* | |
797 | TList * fCpvImpacts ; | |
798 | TBranch * branchCPVimpacts; | |
799 | ||
800 | AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ; | |
801 | ||
802 | fRunLoader->GetEvent(nev); | |
803 | Int_t ntracks = fRunLoader->GetHeader()->GetNtrack(); | |
804 | ||
805 | // Int_t nRecCPV = 0; // Reconstructed points in event // 01.10.2001 | |
806 | // Int_t nGenCPV = 0; // Impacts in event | |
807 | ||
808 | // Get branch of CPV impacts | |
809 | TTree* treeH = please->TreeH(); | |
810 | if (treeH == 0x0) | |
811 | { | |
812 | AliError(Form("Can not get TreeH")); | |
813 | return; | |
814 | } | |
815 | ||
816 | if (! (branchCPVimpacts =treeH->GetBranch("PHOSCpvImpacts")) ) return; | |
817 | ||
818 | // Create and fill arrays of hits for each CPV module | |
819 | Int_t nOfModules = phosgeom->GetNModules(); | |
820 | TClonesArray **hitsPerModule = new TClonesArray *[nOfModules]; | |
821 | Int_t iModule = 0; | |
822 | for (iModule=0; iModule < nOfModules; iModule++) | |
823 | hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100); | |
824 | ||
825 | TClonesArray *impacts; | |
826 | AliPHOSImpact *impact; | |
827 | ||
828 | for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
829 | branchCPVimpacts ->SetAddress(&fCpvImpacts); | |
830 | AliInfo(Form(" branchCPVimpacts ->SetAddress(&fCpvImpacts) OK.")); | |
831 | branchCPVimpacts ->GetEntry(itrack,0); | |
832 | ||
833 | for (iModule=0; iModule < nOfModules; iModule++) { | |
834 | impacts = (TClonesArray *)fCpvImpacts->At(iModule); | |
835 | // Do loop over impacts in the module | |
836 | for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
837 | impact=(AliPHOSImpact*)impacts->At(iImpact); | |
838 | TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule]; | |
839 | new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact); | |
840 | } | |
841 | } | |
842 | fCpvImpacts->Clear(); | |
843 | } | |
844 | ||
845 | for (iModule=0; iModule < nOfModules; iModule++) { | |
846 | Int_t nsum = hitsPerModule[iModule]->GetEntriesFast(); | |
847 | printf("CPV module %d has %d hits\n",iModule,nsum); | |
848 | } | |
849 | ||
850 | */ | |
851 | ||
852 | ||
853 | // TList * fCpvImpacts ; | |
854 | // TBranch * branchCPVimpacts; | |
855 | // AliPHOSImpact* impact; | |
856 | // TClonesArray* impacts; | |
857 | ||
858 | // AliPHOSLoader * please = AliPHOSLoader::GetInstance(GetFileName().Data(),"PHOS"); | |
859 | // const AliPHOSGeometry * fGeom = please->PHOSGeometry(); | |
860 | ||
861 | // Int_t ntracks = gAlice->GetEvent(ievent); | |
862 | // Int_t nOfModules = fGeom->GetNModules(); | |
863 | // AliInfo(Form(" Tracks: "<<ntracks<<" Modules: "<<nOfModules)); | |
864 | ||
865 | // if (! (branchCPVimpacts =gAlice->TreeH()->GetBranch("PHOSCpvImpacts")) ) return; | |
866 | ||
867 | // for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
868 | // branchCPVimpacts ->SetAddress(&fCpvImpacts); | |
869 | // Info("AnalyzeCPV1", " branchCPVimpacts ->SetAddress(&fCpvImpacts) OK."); | |
870 | // branchCPVimpacts ->GetEntry(itrack,0); | |
871 | // Info(Form(" branchCPVimpacts ->GetEntry(itrack,0) OK.")); | |
872 | ||
873 | // for (Int_t iModule=0; iModule < nOfModules; iModule++) { | |
874 | // impacts = (TClonesArray *)fCpvImpacts->At(iModule); | |
875 | // Info(Form(" fCpvImpacts->At(iModule) OK.")); | |
876 | // // Do loop over impacts in the module | |
877 | // for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
878 | // impact=(AliPHOSImpact*)impacts->At(iImpact); | |
879 | // impact->Print(); | |
880 | // if(IsCharged(impact->GetPid())) | |
881 | // { | |
882 | // Info(Form(" Add charged hit..")); | |
883 | // new(hits[hits.GetEntriesFast()]) AliPHOSImpact(*impact); | |
884 | // Info(Form("done.")); | |
885 | // } | |
886 | // } | |
887 | // } | |
888 | // fCpvImpacts->Clear(); | |
889 | // } | |
890 | ||
891 | // Info(Form(" PHOS event "<<ievent<<": "<<hits.GetEntries()<<" charged CPV hits.")); | |
892 | ||
893 | } | |
894 | ||
895 | ||
896 | // void AliPHOSIhepAnalyze::ChargedHitsCPV(TClonesArray* hits, Int_t ievent, Int_t iModule) | |
897 | // { | |
898 | // // Cumulative list of charged CPV hits in event ievent | |
899 | // // in PHOS module iModule. | |
900 | ||
901 | // HitsCPV(hits,ievent,iModule); | |
902 | // TIter next(hits); | |
903 | ||
904 | // while(AliPHOSCPVHit* cpvhit = (AliPHOSCPVHit*)next()) | |
905 | // { | |
906 | // if(!IsCharged(cpvhit->GetIpart())) | |
907 | // { | |
908 | // hits->Remove(cpvhit); | |
909 | // delete cpvhit; | |
910 | // hits->Compress(); | |
911 | // } | |
912 | // } | |
913 | ||
914 | // Info(Form(" PHOS module "<<iModule<<": "<<hits->GetEntries()<<" charged CPV hits.")); | |
915 | // } | |
916 | ||
917 | Bool_t AliPHOSIhepAnalyze::IsCharged(Int_t pdgCode) | |
918 | { | |
919 | // For HIJING | |
920 | AliInfo(Form("pdgCode %d", pdgCode)); | |
921 | if(pdgCode==211 || pdgCode==-211 || pdgCode==321 || pdgCode==-321 || pdgCode==11 || pdgCode==-11 || pdgCode==2212 || pdgCode==-2212) return kTRUE; | |
922 | else | |
923 | return kFALSE; | |
924 | } | |
925 | //--------------------------------------------------------------------------- | |
926 | ||
927 | ||
928 | ||
929 | ||
930 | ||
931 |