]>
Commit | Line | Data |
---|---|---|
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 | const AliPHOSGeometry * fGeom = please->PHOSGeometry(); | |
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 = fGeom->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 (Int_t 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 | const AliPHOSGeometry* geom = please->PHOSGeometry(); | |
219 | Float_t phig = geom->GetPHOSAngle(phosModule); | |
220 | Float_t phi = TMath::Pi()/180*phig; | |
221 | Float_t distanceIPtoCPV = geom->GetIPtoOuterCoverDistance() - | |
222 | (geom->GetFTPosition(1)+ | |
223 | geom->GetFTPosition(2)+ | |
224 | geom->GetCPVTextoliteThickness() | |
225 | )/2; | |
226 | Float_t xoL,yoL,zoL ; | |
227 | // xoL = xgen*TMath::Cos(phig)+ygen*TMath::Sin(phig) ; | |
228 | // yoL = -xgen*TMath::Sin(phig)+ygen*TMath::Cos(phig) + distanceIPtoCPV; | |
229 | xoL = xgen*TMath::Cos(phi)-ygen*TMath::Sin(phi) ; | |
230 | yoL = xgen*TMath::Sin(phi)+ygen*TMath::Cos(phi) + distanceIPtoCPV; | |
231 | zoL = zgen; | |
232 | ||
233 | r2 = TMath::Power((xoL-xrec),2) + TMath::Power((zoL-zrec),2); | |
234 | if ( r2 < r2min ) { | |
235 | r2min = r2; | |
236 | dxmin = xoL - xrec; | |
237 | dzmin = zoL - zrec; | |
238 | locImpX = xoL; | |
239 | locImpZ = zoL; | |
240 | gImpX = xgen; | |
241 | gImpZ = zgen; | |
242 | gImpY = ygen; | |
243 | } | |
244 | } | |
245 | AliInfo(Form("Impact global (X,Z,Y) = %f %f %f", gImpX, gImpZ, gImpY)); | |
246 | AliInfo(Form("Impact local (X,Z) = %f %f", locImpX, locImpZ)); | |
247 | AliInfo(Form("Reconstructed (X,Z) = %f %f", xrec, zrec)); | |
248 | AliInfo(Form("dxmin %f dzmin %f", dxmin, dzmin)); | |
249 | hDx ->Fill(dxmin); | |
250 | hDz ->Fill(dzmin); | |
251 | // hDr ->Fill(TMath::Sqrt(r2min)); | |
252 | hNrp ->Fill(rpMult); | |
253 | hNrpX->Fill(rpMultX); | |
254 | hNrpZ->Fill(rpMultZ); | |
255 | } | |
256 | delete [] hitsPerModule; | |
257 | ||
258 | AliInfo(Form("++++ Event %d : total %d impacts, %d charged impacts and %d rec. points.", | |
259 | ievent, nTotalGen, nChargedGen, please->CpvRecPoints()->GetEntries())) ; | |
260 | } | |
261 | // Save histograms | |
262 | ||
263 | Text_t outputname[80] ; | |
264 | sprintf(outputname,"%s.analyzed",GetFileName().Data()); | |
265 | TFile output(outputname,"RECREATE"); | |
266 | output.cd(); | |
267 | ||
268 | // Plot histograms | |
269 | ||
270 | TCanvas *cpvCanvas = new TCanvas("Cpv1","CPV analysis-I",20,20,800,600); | |
271 | gStyle->SetOptStat(111111); | |
272 | gStyle->SetOptFit(1); | |
273 | gStyle->SetOptDate(1); | |
274 | cpvCanvas->Divide(3,3); | |
275 | ||
276 | cpvCanvas->cd(1); | |
277 | gPad->SetFillColor(10); | |
278 | hNrp->SetFillColor(16); | |
279 | hNrp->Draw(); | |
280 | ||
281 | cpvCanvas->cd(2); | |
282 | gPad->SetFillColor(10); | |
283 | hNrpX->SetFillColor(16); | |
284 | hNrpX->Draw(); | |
285 | ||
286 | cpvCanvas->cd(3); | |
287 | gPad->SetFillColor(10); | |
288 | hNrpZ->SetFillColor(16); | |
289 | hNrpZ->Draw(); | |
290 | ||
291 | cpvCanvas->cd(4); | |
292 | gPad->SetFillColor(10); | |
293 | hDx->SetFillColor(16); | |
294 | hDx->Fit("gaus"); | |
295 | hDx->Draw(); | |
296 | ||
297 | cpvCanvas->cd(5); | |
298 | gPad->SetFillColor(10); | |
299 | hDz->SetFillColor(16); | |
300 | hDz->Fit("gaus"); | |
301 | hDz->Draw(); | |
302 | ||
303 | cpvCanvas->cd(6); | |
304 | gPad->SetFillColor(10); | |
305 | hChi2->SetFillColor(16); | |
306 | hChi2->Draw(); | |
307 | ||
308 | cpvCanvas->cd(7); | |
309 | gPad->SetFillColor(10); | |
310 | hEg->SetFillColor(16); | |
311 | hEg->Draw(); | |
312 | ||
313 | cpvCanvas->cd(8); | |
314 | gPad->SetFillColor(10); | |
315 | hEr->SetFillColor(16); | |
316 | hEr->Draw(); | |
317 | ||
318 | cpvCanvas->Write(0,kOverwrite); | |
319 | ||
320 | } | |
321 | ||
322 | ||
323 | void AliPHOSIhepAnalyze::AnalyzeEMC1(Int_t Nevents) | |
324 | { | |
325 | // | |
326 | // Analyzes Emc characteristics: resolutions, cluster multiplicity, | |
327 | // cluster lengths along Z and Phi. | |
328 | // Author: Boris Polichtchouk, 24.08.2001 | |
329 | // | |
330 | ||
331 | // Book histograms | |
332 | ||
333 | TH1F *hDx = new TH1F("hDx" ,"EMC x-resolution@reconstruction",100,-5. , 5.); | |
334 | TH1F *hDz = new TH1F("hDz" ,"EMC z-resolution@reconstruction",100,-5. , 5.); | |
335 | TH1F *hChi2 = new TH1F("hChi2" ,"Chi2/dof of one-gamma fit",30, 0. , 3.); | |
336 | TH1S *hNrp = new TH1S("hNrp" ,"EMC rec.point multiplicity", 21,-0.5,20.5); | |
337 | TH1S *hNrpX = new TH1S("hNrpX","EMC rec.point Phi-length" , 21,-0.5,20.5); | |
338 | TH1S *hNrpZ = new TH1S("hNrpZ","EMC rec.point Z-length" , 21,-0.5,20.5); | |
339 | ||
340 | TList * fEmcImpacts ; | |
341 | TBranch * branchEMCimpacts; | |
342 | ||
343 | AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
344 | if ( please == 0 ) | |
345 | { | |
346 | AliError(Form("Could not obtain the Loader object !")); | |
347 | return ; | |
348 | } | |
349 | ||
350 | const AliPHOSGeometry * fGeom = please->PHOSGeometry(); | |
351 | ||
352 | AliInfo(Form("Start EMC Analysis-1. Resolutions, cluster multiplicity and lengths")); | |
353 | for ( Int_t ievent=0; ievent<Nevents; ievent++) { | |
354 | ||
355 | Int_t nTotalGen = 0; | |
356 | ||
357 | Int_t ntracks = gAlice->GetEvent(ievent); | |
358 | ||
359 | AliInfo(Form(" >>>>>>>Event %d .<<<<<<<", ievent)) ; | |
360 | ||
361 | TTree* treeH = please->TreeH(); | |
362 | if (treeH == 0x0) | |
363 | { | |
364 | AliError(Form("Can not get TreeH")); | |
365 | return; | |
366 | } | |
367 | ||
368 | ||
369 | // Get branch of EMC impacts | |
370 | if (! (branchEMCimpacts =treeH->GetBranch("PHOSEmcImpacts")) ) { | |
371 | AliWarning(Form(" Couldn't find branch PHOSEmcImpacts. Exit.")); | |
372 | return; | |
373 | } | |
374 | ||
375 | // Create and fill arrays of hits for each EMC module | |
376 | ||
377 | Int_t nOfModules = fGeom->GetNModules(); | |
378 | TClonesArray **hitsPerModule = new TClonesArray *[nOfModules]; | |
379 | Int_t iModule = 0; | |
380 | for (iModule=0; iModule < nOfModules; iModule++) | |
381 | hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100); | |
382 | ||
383 | TClonesArray *impacts; | |
384 | AliPHOSImpact *impact; | |
385 | TLorentzVector p; | |
386 | ||
387 | // First go through all primary tracks and fill the arrays | |
388 | // of hits per each EMC module | |
389 | ||
390 | for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
391 | branchEMCimpacts ->SetAddress(&fEmcImpacts); | |
392 | branchEMCimpacts ->GetEntry(itrack,0); | |
393 | ||
394 | for (Int_t iModule=0; iModule < nOfModules; iModule++) { | |
395 | impacts = (TClonesArray *)fEmcImpacts->At(iModule); | |
396 | // Do loop over impacts in the module | |
397 | for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
398 | impact=(AliPHOSImpact*)impacts->At(iImpact); | |
399 | TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule]; | |
400 | new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact); | |
401 | } | |
402 | } | |
403 | fEmcImpacts->Clear(); | |
404 | } | |
405 | for (iModule=0; iModule < nOfModules; iModule++) { | |
406 | Int_t nsum = hitsPerModule[iModule]->GetEntriesFast(); | |
407 | printf("EMC module %d has %d hits\n",iModule,nsum); | |
408 | nTotalGen += nsum; | |
409 | } | |
410 | ||
411 | // Then go through reconstructed points and for each find | |
412 | // the closeset hit | |
413 | // The distance from the rec.point to the closest hit | |
414 | // gives the coordinate resolution of the EMC | |
415 | ||
416 | fRunLoader->GetEvent(ievent); | |
417 | TIter nextRP(please->EmcRecPoints()) ; | |
418 | AliPHOSEmcRecPoint *emcRecPoint ; | |
419 | Float_t xgen, ygen, zgen; | |
420 | while( ( emcRecPoint = (AliPHOSEmcRecPoint *)nextRP() ) ) { | |
421 | ||
422 | Float_t chi2dof = ((AliPHOSEvalRecPoint*)emcRecPoint)->Chi2Dof(); | |
423 | hChi2->Fill(chi2dof); | |
424 | ||
425 | TVector3 locpos; | |
426 | emcRecPoint->GetLocalPosition(locpos); | |
427 | Int_t phosModule = emcRecPoint->GetPHOSMod(); | |
428 | Int_t rpMult = emcRecPoint->GetMultiplicity(); | |
429 | Int_t rpMultX, rpMultZ; | |
430 | ((AliPHOSEvalRecPoint*)emcRecPoint)->GetClusterLengths(rpMultX,rpMultZ); | |
431 | Float_t xrec = locpos.X(); | |
432 | Float_t zrec = locpos.Z(); | |
433 | Float_t dxmin = 1.e+10; | |
434 | Float_t dzmin = 1.e+10; | |
435 | Float_t r2min = 1.e+10; | |
436 | Float_t r2; | |
437 | ||
438 | Int_t nEMChits = (hitsPerModule[phosModule-1])->GetEntriesFast(); | |
439 | Float_t locImpX=1e10,locImpZ=1e10; // local coords of closest impact | |
440 | Float_t gImpX=1e10, gImpZ=1e10,gImpY=1e10; // global coords of closest impact | |
441 | for (Int_t ihit=0; ihit<nEMChits; ihit++) { | |
442 | impact = (AliPHOSImpact*)(hitsPerModule[phosModule-1])->UncheckedAt(ihit); | |
443 | xgen = impact->X(); | |
444 | zgen = impact->Z(); | |
445 | ygen = impact->Y(); | |
446 | ||
447 | ||
448 | //Transform to the local ref.frame | |
449 | const AliPHOSGeometry* geom = please->PHOSGeometry(); | |
450 | Float_t phig = geom->GetPHOSAngle(phosModule); | |
451 | Float_t phi = TMath::Pi()/180*phig; | |
452 | Float_t distanceIPtoEMC = geom->GetIPtoCrystalSurface(); | |
453 | Float_t xoL,yoL,zoL ; | |
454 | // xoL = xgen*TMath::Cos(phig)+ygen*TMath::Sin(phig) ; | |
455 | // yoL = -xgen*TMath::Sin(phig)+ygen*TMath::Cos(phig) + distanceIPtoEMC; | |
456 | xoL = xgen*TMath::Cos(phi)-ygen*TMath::Sin(phi) ; | |
457 | yoL = xgen*TMath::Sin(phi)+ygen*TMath::Cos(phi) + distanceIPtoEMC; | |
458 | zoL = zgen; | |
459 | ||
460 | r2 = TMath::Power((xoL-xrec),2) + TMath::Power((zoL-zrec),2); | |
461 | if ( r2 < r2min ) { | |
462 | r2min = r2; | |
463 | dxmin = xoL - xrec; | |
464 | dzmin = zoL - zrec; | |
465 | locImpX = xoL; | |
466 | locImpZ = zoL; | |
467 | gImpX = xgen; | |
468 | gImpZ = zgen; | |
469 | gImpY = ygen; | |
470 | } | |
471 | } | |
472 | AliInfo(Form(" Impact global (X,Z,Y) = %f %f %f", gImpX, gImpZ, gImpY)); | |
473 | AliInfo(Form(" Impact local (X,Z) = %f %f", locImpX, locImpZ)); | |
474 | AliInfo(Form(" Reconstructed (X,Z) = %f %f", xrec, zrec)); | |
475 | AliInfo(Form(" dxmin %f dzmin %f", dxmin, dzmin)) ; | |
476 | hDx ->Fill(dxmin); | |
477 | hDz ->Fill(dzmin); | |
478 | // hDr ->Fill(TMath::Sqrt(r2min)); | |
479 | hNrp ->Fill(rpMult); | |
480 | hNrpX->Fill(rpMultX); | |
481 | hNrpZ->Fill(rpMultZ); | |
482 | } | |
483 | delete [] hitsPerModule; | |
484 | ||
485 | AliInfo(Form("++++ Event %d : total %d impacts, %d Emc rec. points.", | |
486 | ievent, nTotalGen, please->EmcRecPoints()->GetEntriesFast())) ; | |
487 | ||
488 | } | |
489 | // Save histograms | |
490 | ||
491 | Text_t outputname[80] ; | |
492 | sprintf(outputname,"%s.analyzed",GetFileName().Data()); | |
493 | TFile output(outputname,"update"); | |
494 | output.cd(); | |
495 | ||
496 | // Plot histograms | |
497 | ||
498 | TCanvas *emcCanvas = new TCanvas("Emc1","EMC analysis-I",20,20,800,400); | |
499 | gStyle->SetOptStat(111111); | |
500 | gStyle->SetOptFit(1); | |
501 | gStyle->SetOptDate(1); | |
502 | emcCanvas->Divide(3,2); | |
503 | ||
504 | emcCanvas->cd(1); | |
505 | gPad->SetFillColor(10); | |
506 | hNrp->SetFillColor(16); | |
507 | hNrp->Draw(); | |
508 | ||
509 | emcCanvas->cd(2); | |
510 | gPad->SetFillColor(10); | |
511 | hNrpX->SetFillColor(16); | |
512 | hNrpX->Draw(); | |
513 | ||
514 | emcCanvas->cd(3); | |
515 | gPad->SetFillColor(10); | |
516 | hNrpZ->SetFillColor(16); | |
517 | hNrpZ->Draw(); | |
518 | ||
519 | emcCanvas->cd(4); | |
520 | gPad->SetFillColor(10); | |
521 | hDx->SetFillColor(16); | |
522 | hDx->Fit("gaus"); | |
523 | hDx->Draw(); | |
524 | ||
525 | emcCanvas->cd(5); | |
526 | gPad->SetFillColor(10); | |
527 | hDz->SetFillColor(16); | |
528 | hDz->Fit("gaus"); | |
529 | hDz->Draw(); | |
530 | ||
531 | emcCanvas->cd(6); | |
532 | gPad->SetFillColor(10); | |
533 | hChi2->SetFillColor(16); | |
534 | hChi2->Draw(); | |
535 | ||
536 | emcCanvas->Write(0,kOverwrite); | |
537 | } | |
538 | ||
539 | //____________________________________________________________________________ | |
540 | void AliPHOSIhepAnalyze::AnalyzeCPV2(Int_t Nevents) | |
541 | { | |
542 | // CPV analysis - part II. | |
543 | // Ratio of combinatoric distances between generated | |
544 | // and reconstructed hits. | |
545 | // Author: Boris Polichtchouk (polishchuk@mx.ihep.su) | |
546 | // 24 March 2001 | |
547 | ||
548 | ||
549 | TH1F* hDrijCPVr = new TH1F("Drij_cpv_r","Distance between reconstructed hits in CPV",140,0,50); | |
550 | TH1F* hDrijCPVg = new TH1F("Drij_cpv_g","Distance between generated hits in CPV",140,0,50); | |
551 | TH1F* hDrijCPVratio = new TH1F("Drij_cpv_ratio","R_{ij}^{rec}/R_{ij}^{gen} in CPV",140,0,50); | |
552 | ||
553 | // TH1F* hT0 = new TH1F("hT0","Type of entering particle",20000,-10000,10000); | |
554 | ||
555 | hDrijCPVr->Sumw2(); | |
556 | hDrijCPVg->Sumw2(); | |
557 | hDrijCPVratio->Sumw2(); //correct treatment of errors | |
558 | ||
559 | TList * fCpvImpacts = new TList(); | |
560 | TBranch * branchCPVimpacts; | |
561 | ||
562 | AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
563 | if ( please == 0 ) | |
564 | { | |
565 | AliError(Form("Could not obtain the Loader object !")); | |
566 | return ; | |
567 | } | |
568 | const AliPHOSGeometry * fGeom = please->PHOSGeometry(); | |
569 | fRunLoader->LoadHeader(); | |
570 | ||
571 | for (Int_t nev=0; nev<Nevents; nev++) | |
572 | { | |
573 | printf("\n=================== Event %10d ===================\n",nev); | |
574 | fRunLoader->GetEvent(nev); | |
575 | Int_t ntracks = fRunLoader->GetHeader()->GetNtrack(); | |
576 | ||
577 | Int_t nRecCPV = 0; // Reconstructed points in event | |
578 | Int_t nGenCPV = 0; // Impacts in event | |
579 | ||
580 | // Get branch of CPV impacts | |
581 | TTree* treeH = please->TreeH(); | |
582 | if (treeH == 0x0) | |
583 | { | |
584 | AliError(Form("Can not get TreeH")); | |
585 | return; | |
586 | } | |
587 | ||
588 | if (! (branchCPVimpacts =treeH->GetBranch("PHOSCpvImpacts")) ) return; | |
589 | ||
590 | // Create and fill arrays of hits for each CPV module | |
591 | Int_t nOfModules = fGeom->GetNModules(); | |
592 | TClonesArray **hitsPerModule = new TClonesArray *[nOfModules]; | |
593 | Int_t iModule = 0; | |
594 | for (iModule=0; iModule < nOfModules; iModule++) | |
595 | hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100); | |
596 | ||
597 | TClonesArray *impacts; | |
598 | AliPHOSImpact *impact; | |
599 | ||
600 | for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
601 | branchCPVimpacts ->SetAddress(&fCpvImpacts); | |
602 | AliInfo(Form(" branchCPVimpacts ->SetAddress(&fCpvImpacts) OK.")); | |
603 | branchCPVimpacts ->GetEntry(itrack,0); | |
604 | ||
605 | for (Int_t iModule=0; iModule < nOfModules; iModule++) { | |
606 | impacts = (TClonesArray *)fCpvImpacts->At(iModule); | |
607 | // Do loop over impacts in the module | |
608 | for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
609 | impact=(AliPHOSImpact*)impacts->At(iImpact); | |
610 | TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule]; | |
611 | if(IsCharged(impact->GetPid())) | |
612 | new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact); | |
613 | } | |
614 | } | |
615 | fCpvImpacts->Clear(); | |
616 | } | |
617 | ||
618 | for (iModule=0; iModule < nOfModules; iModule++) { | |
619 | Int_t nsum = hitsPerModule[iModule]->GetEntriesFast(); | |
620 | printf("CPV module %d has %d hits\n",iModule,nsum); | |
621 | ||
622 | AliPHOSImpact* genHit1; | |
623 | AliPHOSImpact* genHit2; | |
624 | Int_t irp1,irp2; | |
625 | for(irp1=0; irp1< nsum; irp1++) | |
626 | { | |
627 | genHit1 = (AliPHOSImpact*)((hitsPerModule[iModule])->At(irp1)); | |
628 | for(irp2 = irp1+1; irp2<nsum; irp2++) | |
629 | { | |
630 | genHit2 = (AliPHOSImpact*)((hitsPerModule[iModule])->At(irp2)); | |
631 | Float_t dx = genHit1->X() - genHit2->X(); | |
632 | Float_t dz = genHit1->Z() - genHit2->Z(); | |
633 | Float_t dr = TMath::Sqrt(dx*dx + dz*dz); | |
634 | hDrijCPVg->Fill(dr); | |
635 | // AliInfo(Form("(dx dz dr): %f %f", dx, dz)); | |
636 | } | |
637 | } | |
638 | } | |
639 | ||
640 | ||
641 | //--------- Combinatoric distance between rec. hits in CPV | |
642 | ||
643 | TObjArray* cpvRecPoints = please->CpvRecPoints(); | |
644 | nRecCPV = cpvRecPoints->GetEntriesFast(); | |
645 | ||
646 | if(nRecCPV) | |
647 | { | |
648 | AliPHOSCpvRecPoint* recHit1; | |
649 | AliPHOSCpvRecPoint* recHit2; | |
650 | TIter nextCPVrec1(cpvRecPoints); | |
651 | while(TObject* obj1 = nextCPVrec1() ) | |
652 | { | |
653 | TIter nextCPVrec2(cpvRecPoints); | |
654 | while (TObject* obj2 = nextCPVrec2()) | |
655 | { | |
656 | if(!obj2->IsEqual(obj1)) | |
657 | { | |
658 | recHit1 = (AliPHOSCpvRecPoint*)obj1; | |
659 | recHit2 = (AliPHOSCpvRecPoint*)obj2; | |
660 | TVector3 locpos1; | |
661 | TVector3 locpos2; | |
662 | recHit1->GetLocalPosition(locpos1); | |
663 | recHit2->GetLocalPosition(locpos2); | |
664 | Float_t dx = locpos1.X() - locpos2.X(); | |
665 | Float_t dz = locpos1.Z() - locpos2.Z(); | |
666 | Float_t dr = TMath::Sqrt(dx*dx + dz*dz); | |
667 | if(recHit1->GetPHOSMod() == recHit2->GetPHOSMod()) | |
668 | hDrijCPVr->Fill(dr); | |
669 | } | |
670 | } | |
671 | } | |
672 | } | |
673 | ||
674 | AliInfo(Form(" Event %d . Total of %d hits, %d rec.points.", | |
675 | nev, nGenCPV, nRecCPV)) ; | |
676 | ||
677 | delete [] hitsPerModule; | |
678 | ||
679 | } // End of loop over events. | |
680 | ||
681 | ||
682 | // hDrijCPVg->Draw(); | |
683 | // hDrijCPVr->Draw(); | |
684 | hDrijCPVratio->Divide(hDrijCPVr,hDrijCPVg); | |
685 | hDrijCPVratio->Draw(); | |
686 | ||
687 | // hT0->Draw(); | |
688 | ||
689 | } | |
690 | ||
691 | ||
692 | void AliPHOSIhepAnalyze::CpvSingle(Int_t nevents) | |
693 | { | |
694 | // Distributions of coordinates and cluster lengths of rec. points | |
695 | // in the case of single initial particle. | |
696 | ||
697 | TH1F* hZr = new TH1F("Zrec","Reconstructed Z distribution",150,-5,5); | |
698 | TH1F* hXr = new TH1F("Xrec","Reconstructed X distribution",150,-14,-2); | |
699 | TH1F *hChi2 = new TH1F("hChi2" ,"Chi2/dof of one-gamma fit",100, 0. , 20.); | |
700 | ||
701 | TH1S *hNrp = new TH1S("hNrp" ,"CPV rec.point multiplicity",21,-0.5,20.5); | |
702 | TH1S *hNrpX = new TH1S("hNrpX","CPV rec.point Phi-length" ,21,-0.5,20.5); | |
703 | TH1S *hNrpZ = new TH1S("hNrpZ","CPV rec.point Z-length" ,21,-0.5,20.5); | |
704 | ||
705 | AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
706 | if ( gime == 0 ) | |
707 | { | |
708 | AliError(Form("Could not obtain the Loader object !")); | |
709 | return ; | |
710 | } | |
711 | ||
712 | for(Int_t ievent=0; ievent<nevents; ievent++) | |
713 | { | |
714 | fRunLoader->GetEvent(ievent); | |
715 | if(gime->CpvRecPoints()->GetEntriesFast()>1) continue; | |
716 | ||
717 | AliPHOSCpvRecPoint* pt = (AliPHOSCpvRecPoint*)(gime->CpvRecPoints())->At(0); | |
718 | if(pt) { | |
719 | TVector3 lpos; | |
720 | pt->GetLocalPosition(lpos); | |
721 | hXr->Fill(lpos.X()); | |
722 | hZr->Fill(lpos.Z()); | |
723 | ||
724 | Int_t rpMult = pt->GetMultiplicity(); | |
725 | hNrp->Fill(rpMult); | |
726 | Int_t rpMultX, rpMultZ; | |
727 | pt->GetClusterLengths(rpMultX,rpMultZ); | |
728 | hNrpX->Fill(rpMultX); | |
729 | hNrpZ->Fill(rpMultZ); | |
730 | hChi2->Fill(((AliPHOSEvalRecPoint*)pt)->Chi2Dof()); | |
731 | AliInfo(Form("+++++ Event %d . (Mult,MultX,MultZ) = %d %d %d +++++", | |
732 | ievent, rpMult, rpMultX, rpMultZ)) ; | |
733 | ||
734 | } | |
735 | ||
736 | } | |
737 | ||
738 | Text_t outputname[80] ; | |
739 | sprintf(outputname,"%s.analyzed.single",GetFileName().Data()); | |
740 | TFile output(outputname,"RECREATE"); | |
741 | output.cd(); | |
742 | ||
743 | // Plot histograms | |
744 | TCanvas *cpvCanvas = new TCanvas("SingleParticle","Single particle events",20,20,800,400); | |
745 | gStyle->SetOptStat(111111); | |
746 | gStyle->SetOptFit(1); | |
747 | gStyle->SetOptDate(1); | |
748 | cpvCanvas->Divide(3,2); | |
749 | ||
750 | cpvCanvas->cd(1); | |
751 | gPad->SetFillColor(10); | |
752 | hXr->SetFillColor(16); | |
753 | hXr->Draw(); | |
754 | ||
755 | cpvCanvas->cd(2); | |
756 | gPad->SetFillColor(10); | |
757 | hZr->SetFillColor(16); | |
758 | hZr->Draw(); | |
759 | ||
760 | cpvCanvas->cd(3); | |
761 | gPad->SetFillColor(10); | |
762 | hChi2->SetFillColor(16); | |
763 | hChi2->Draw(); | |
764 | ||
765 | cpvCanvas->cd(4); | |
766 | gPad->SetFillColor(10); | |
767 | hNrp->SetFillColor(16); | |
768 | hNrp->Draw(); | |
769 | ||
770 | cpvCanvas->cd(5); | |
771 | gPad->SetFillColor(10); | |
772 | hNrpX->SetFillColor(16); | |
773 | hNrpX->Draw(); | |
774 | ||
775 | cpvCanvas->cd(6); | |
776 | gPad->SetFillColor(10); | |
777 | hNrpZ->SetFillColor(16); | |
778 | hNrpZ->Draw(); | |
779 | ||
780 | cpvCanvas->Write(0,kOverwrite); | |
781 | ||
782 | } | |
783 | ||
784 | void AliPHOSIhepAnalyze::HitsCPV(Int_t nev) | |
785 | { | |
786 | // Cumulative list of charged CPV impacts in event nev. | |
787 | ||
788 | TList * fCpvImpacts ; | |
789 | TBranch * branchCPVimpacts; | |
790 | ||
791 | AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader")); | |
792 | if ( please == 0 ) | |
793 | { | |
794 | AliError(Form("Could not obtain the Loader object !")); | |
795 | return ; | |
796 | } | |
797 | const AliPHOSGeometry * fGeom = please->PHOSGeometry(); | |
798 | ||
799 | ||
800 | printf("\n=================== Event %10d ===================\n",nev); | |
801 | fRunLoader->GetEvent(nev); | |
802 | Int_t ntracks = fRunLoader->GetHeader()->GetNtrack(); | |
803 | ||
804 | // Int_t nRecCPV = 0; // Reconstructed points in event // 01.10.2001 | |
805 | // Int_t nGenCPV = 0; // Impacts in event | |
806 | ||
807 | // Get branch of CPV impacts | |
808 | TTree* treeH = please->TreeH(); | |
809 | if (treeH == 0x0) | |
810 | { | |
811 | AliError(Form("Can not get TreeH")); | |
812 | return; | |
813 | } | |
814 | ||
815 | if (! (branchCPVimpacts =treeH->GetBranch("PHOSCpvImpacts")) ) return; | |
816 | ||
817 | // Create and fill arrays of hits for each CPV module | |
818 | Int_t nOfModules = fGeom->GetNModules(); | |
819 | TClonesArray **hitsPerModule = new TClonesArray *[nOfModules]; | |
820 | Int_t iModule = 0; | |
821 | for (iModule=0; iModule < nOfModules; iModule++) | |
822 | hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100); | |
823 | ||
824 | TClonesArray *impacts; | |
825 | AliPHOSImpact *impact; | |
826 | ||
827 | for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
828 | branchCPVimpacts ->SetAddress(&fCpvImpacts); | |
829 | AliInfo(Form(" branchCPVimpacts ->SetAddress(&fCpvImpacts) OK.")); | |
830 | branchCPVimpacts ->GetEntry(itrack,0); | |
831 | ||
832 | for (Int_t iModule=0; iModule < nOfModules; iModule++) { | |
833 | impacts = (TClonesArray *)fCpvImpacts->At(iModule); | |
834 | // Do loop over impacts in the module | |
835 | for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
836 | impact=(AliPHOSImpact*)impacts->At(iImpact); | |
837 | TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule]; | |
838 | new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact); | |
839 | } | |
840 | } | |
841 | fCpvImpacts->Clear(); | |
842 | } | |
843 | ||
844 | for (iModule=0; iModule < nOfModules; iModule++) { | |
845 | Int_t nsum = hitsPerModule[iModule]->GetEntriesFast(); | |
846 | printf("CPV module %d has %d hits\n",iModule,nsum); | |
847 | } | |
848 | ||
849 | // TList * fCpvImpacts ; | |
850 | // TBranch * branchCPVimpacts; | |
851 | // AliPHOSImpact* impact; | |
852 | // TClonesArray* impacts; | |
853 | ||
854 | // AliPHOSLoader * please = AliPHOSLoader::GetInstance(GetFileName().Data(),"PHOS"); | |
855 | // const AliPHOSGeometry * fGeom = please->PHOSGeometry(); | |
856 | ||
857 | // Int_t ntracks = gAlice->GetEvent(ievent); | |
858 | // Int_t nOfModules = fGeom->GetNModules(); | |
859 | // AliInfo(Form(" Tracks: "<<ntracks<<" Modules: "<<nOfModules)); | |
860 | ||
861 | // if (! (branchCPVimpacts =gAlice->TreeH()->GetBranch("PHOSCpvImpacts")) ) return; | |
862 | ||
863 | // for (Int_t itrack=0; itrack<ntracks; itrack++) { | |
864 | // branchCPVimpacts ->SetAddress(&fCpvImpacts); | |
865 | // Info("AnalyzeCPV1", " branchCPVimpacts ->SetAddress(&fCpvImpacts) OK."); | |
866 | // branchCPVimpacts ->GetEntry(itrack,0); | |
867 | // Info(Form(" branchCPVimpacts ->GetEntry(itrack,0) OK.")); | |
868 | ||
869 | // for (Int_t iModule=0; iModule < nOfModules; iModule++) { | |
870 | // impacts = (TClonesArray *)fCpvImpacts->At(iModule); | |
871 | // Info(Form(" fCpvImpacts->At(iModule) OK.")); | |
872 | // // Do loop over impacts in the module | |
873 | // for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) { | |
874 | // impact=(AliPHOSImpact*)impacts->At(iImpact); | |
875 | // impact->Print(); | |
876 | // if(IsCharged(impact->GetPid())) | |
877 | // { | |
878 | // Info(Form(" Add charged hit..")); | |
879 | // new(hits[hits.GetEntriesFast()]) AliPHOSImpact(*impact); | |
880 | // Info(Form("done.")); | |
881 | // } | |
882 | // } | |
883 | // } | |
884 | // fCpvImpacts->Clear(); | |
885 | // } | |
886 | ||
887 | // Info(Form(" PHOS event "<<ievent<<": "<<hits.GetEntries()<<" charged CPV hits.")); | |
888 | ||
889 | } | |
890 | ||
891 | ||
892 | // void AliPHOSIhepAnalyze::ChargedHitsCPV(TClonesArray* hits, Int_t ievent, Int_t iModule) | |
893 | // { | |
894 | // // Cumulative list of charged CPV hits in event ievent | |
895 | // // in PHOS module iModule. | |
896 | ||
897 | // HitsCPV(hits,ievent,iModule); | |
898 | // TIter next(hits); | |
899 | ||
900 | // while(AliPHOSCPVHit* cpvhit = (AliPHOSCPVHit*)next()) | |
901 | // { | |
902 | // if(!IsCharged(cpvhit->GetIpart())) | |
903 | // { | |
904 | // hits->Remove(cpvhit); | |
905 | // delete cpvhit; | |
906 | // hits->Compress(); | |
907 | // } | |
908 | // } | |
909 | ||
910 | // Info(Form(" PHOS module "<<iModule<<": "<<hits->GetEntries()<<" charged CPV hits.")); | |
911 | // } | |
912 | ||
913 | Bool_t AliPHOSIhepAnalyze::IsCharged(Int_t pdgCode) | |
914 | { | |
915 | // For HIJING | |
916 | AliInfo(Form("pdgCode %d", pdgCode)); | |
917 | if(pdgCode==211 || pdgCode==-211 || pdgCode==321 || pdgCode==-321 || pdgCode==11 || pdgCode==-11 || pdgCode==2212 || pdgCode==-2212) return kTRUE; | |
918 | else | |
919 | return kFALSE; | |
920 | } | |
921 | //--------------------------------------------------------------------------- | |
922 | ||
923 | ||
924 | ||
925 | ||
926 | ||
927 |