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f7f33dec | 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 | ||
54b76c13 | 16 | /* |
17 | Comments to be written here: | |
18 | 1. What do we calibrate. | |
19 | 2. How to interpret results | |
20 | 3. Simple example | |
21 | 4. Analysis using debug streamers. | |
22 | ||
23 | ||
24 | ||
25 | 3.Simple example | |
26 | // To make cosmic scan the user interaction neccessary | |
27 | // | |
28 | .x ~/UliStyle.C | |
29 | gSystem->Load("libANALYSIS"); | |
30 | gSystem->Load("libTPCcalib"); | |
31 | TFile fcalib("CalibObjects.root"); | |
32 | TObjArray * array = (TObjArray*)fcalib.Get("TPCCalib"); | |
33 | AliTPCcalibCosmic * cosmic = ( AliTPCcalibCosmic *)array->FindObject("cosmicTPC"); | |
34 | ||
35 | ||
36 | ||
37 | */ | |
38 | ||
39 | ||
40 | ||
f7f33dec | 41 | #include "Riostream.h" |
42 | #include "TChain.h" | |
43 | #include "TTree.h" | |
44 | #include "TH1F.h" | |
45 | #include "TH2F.h" | |
46 | #include "TList.h" | |
47 | #include "TMath.h" | |
48 | #include "TCanvas.h" | |
49 | #include "TFile.h" | |
54b76c13 | 50 | #include "TF1.h" |
f7f33dec | 51 | |
54b76c13 | 52 | #include "AliTPCclusterMI.h" |
f7f33dec | 53 | #include "AliTPCseed.h" |
54 | #include "AliESDVertex.h" | |
55 | #include "AliESDEvent.h" | |
56 | #include "AliESDfriend.h" | |
57 | #include "AliESDInputHandler.h" | |
54b76c13 | 58 | #include "AliAnalysisManager.h" |
f7f33dec | 59 | |
60 | #include "AliTracker.h" | |
61 | #include "AliMagFMaps.h" | |
54b76c13 | 62 | #include "AliTPCCalROC.h" |
f7f33dec | 63 | |
64 | #include "AliLog.h" | |
65 | ||
66 | #include "AliTPCcalibCosmic.h" | |
67 | ||
68 | #include "TTreeStream.h" | |
69 | #include "AliTPCTracklet.h" | |
70 | ||
71 | ClassImp(AliTPCcalibCosmic) | |
72 | ||
73 | ||
74 | AliTPCcalibCosmic::AliTPCcalibCosmic() | |
75 | :AliTPCcalibBase(), | |
bca20570 | 76 | fGainMap(0), |
9b27d39b | 77 | fHistNTracks(0), |
78 | fClusters(0), | |
79 | fModules(0), | |
80 | fHistPt(0), | |
9b27d39b | 81 | fDeDx(0), |
54b76c13 | 82 | fDeDxMIP(0), |
83 | fMIPvalue(1), | |
9b27d39b | 84 | fCutMaxD(5), // maximal distance in rfi ditection |
85 | fCutTheta(0.03), // maximal distan theta | |
86 | fCutMinDir(-0.99) // direction vector products | |
f7f33dec | 87 | { |
54b76c13 | 88 | AliInfo("Default Constructor"); |
f7f33dec | 89 | } |
90 | ||
91 | ||
92 | AliTPCcalibCosmic::AliTPCcalibCosmic(const Text_t *name, const Text_t *title) | |
93 | :AliTPCcalibBase(), | |
bca20570 | 94 | fGainMap(0), |
9b27d39b | 95 | fHistNTracks(0), |
96 | fClusters(0), | |
97 | fModules(0), | |
98 | fHistPt(0), | |
9b27d39b | 99 | fDeDx(0), |
54b76c13 | 100 | fDeDxMIP(0), |
101 | fMIPvalue(1), | |
9b27d39b | 102 | fCutMaxD(5), // maximal distance in rfi ditection |
103 | fCutTheta(0.03), // maximal distan theta | |
104 | fCutMinDir(-0.99) // direction vector products | |
f7f33dec | 105 | { |
106 | SetName(name); | |
107 | SetTitle(title); | |
108 | AliMagFMaps * field = new AliMagFMaps("dummy1", "dummy2",0,5,0); | |
109 | AliTracker::SetFieldMap(field, kTRUE); | |
54b76c13 | 110 | |
111 | fHistNTracks = new TH1F("ntracks","Number of Tracks per Event; number of tracks per event; number of tracks",501,-0.5,500.5); | |
112 | fClusters = new TH1F("signal","Number of Clusters per track; number of clusters per track n_{cl}; counts",160,0,160); | |
113 | fModules = new TH2F("sector","Acorde hits; z (cm); x(cm)",1200,-650,650,600,-700,700); | |
114 | fHistPt = new TH1F("Pt","Pt distribution; p_{T} (GeV); counts",2000,0,50); | |
115 | fDeDx = new TH2F("DeDx","dEdx; momentum p (GeV); TPC signal (a.u.)",500,0.01,100.,500,2.,1000); | |
f7f33dec | 116 | BinLogX(fDeDx); |
54b76c13 | 117 | fDeDxMIP = new TH1F("DeDxMIP","MIP region; TPC signal (a.u.);counts ",500,2.,1000); |
118 | ||
9b27d39b | 119 | AliInfo("Non Default Constructor"); |
bca20570 | 120 | // |
f7f33dec | 121 | } |
122 | ||
123 | AliTPCcalibCosmic::~AliTPCcalibCosmic(){ | |
124 | // | |
125 | // | |
126 | // | |
127 | } | |
128 | ||
129 | ||
9b27d39b | 130 | |
131 | ||
132 | ||
f7f33dec | 133 | void AliTPCcalibCosmic::Process(AliESDEvent *event) { |
9b27d39b | 134 | // |
135 | // | |
136 | // | |
f7f33dec | 137 | if (!event) { |
138 | Printf("ERROR: ESD not available"); | |
139 | return; | |
9b27d39b | 140 | } |
f7f33dec | 141 | AliESDfriend *ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend")); |
142 | if (!ESDfriend) { | |
143 | Printf("ERROR: ESDfriend not available"); | |
144 | return; | |
145 | } | |
2acad464 | 146 | |
54b76c13 | 147 | FindPairs(event); // nearly everything takes place in find pairs... |
148 | ||
2acad464 | 149 | if (GetDebugLevel()>20) printf("Hallo world: Im here and processing an event\n"); |
9b27d39b | 150 | Int_t ntracks=event->GetNumberOfTracks(); |
151 | fHistNTracks->Fill(ntracks); | |
9b27d39b | 152 | if (ntracks==0) return; |
9b27d39b | 153 | |
54b76c13 | 154 | } |
9b27d39b | 155 | |
f7f33dec | 156 | |
157 | ||
54b76c13 | 158 | void AliTPCcalibCosmic::Analyze() { |
159 | ||
160 | fMIPvalue = CalculateMIPvalue(fDeDxMIP); | |
161 | ||
162 | return; | |
163 | ||
164 | } | |
165 | ||
f7f33dec | 166 | |
f7f33dec | 167 | |
9b27d39b | 168 | void AliTPCcalibCosmic::FindPairs(AliESDEvent *event) { |
169 | // | |
170 | // Find cosmic pairs | |
04087794 | 171 | // |
172 | // Track0 is choosen in upper TPC part | |
173 | // Track1 is choosen in lower TPC part | |
9b27d39b | 174 | // |
2acad464 | 175 | if (GetDebugLevel()>20) printf("Hallo world: Im here\n"); |
9b27d39b | 176 | AliESDfriend *ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend")); |
177 | Int_t ntracks=event->GetNumberOfTracks(); | |
9b27d39b | 178 | TObjArray tpcSeeds(ntracks); |
179 | if (ntracks==0) return; | |
180 | Double_t vtxx[3]={0,0,0}; | |
181 | Double_t svtxx[3]={0.000001,0.000001,100.}; | |
182 | AliESDVertex vtx(vtxx,svtxx); | |
183 | // | |
184 | //track loop | |
185 | // | |
54b76c13 | 186 | for (Int_t i=0;i<ntracks;++i) { |
187 | AliESDtrack *track = event->GetTrack(i); | |
188 | fClusters->Fill(track->GetTPCNcls()); | |
189 | ||
190 | const AliExternalTrackParam * trackIn = track->GetInnerParam(); | |
191 | const AliExternalTrackParam * trackOut = track->GetOuterParam(); | |
192 | if (!trackIn) continue; | |
193 | if (!trackOut) continue; | |
9b27d39b | 194 | |
195 | AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i); | |
196 | TObject *calibObject; | |
197 | AliTPCseed *seed = 0; | |
198 | for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) { | |
199 | if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break; | |
200 | } | |
201 | if (seed) tpcSeeds.AddAt(seed,i); | |
54b76c13 | 202 | |
203 | Double_t meanP = 0.5*(trackIn->GetP() + trackOut->GetP()); | |
204 | if (seed && track->GetTPCNcls() > 80 + 60/(1+TMath::Exp(-meanP+5))) { | |
205 | fDeDx->Fill(meanP, seed->CookdEdxNorm(0.0,0.45,0,0,159,fGainMap)); | |
206 | // | |
207 | if (meanP > 0.4 && meanP < 0.45) fDeDxMIP->Fill(seed->CookdEdxNorm(0.0,0.45,0,0,159,fGainMap)); | |
208 | // | |
209 | if (GetDebugLevel()>0&&meanP>0.2&&seed->CookdEdxNorm(0.0,0.45,0,0,159,fGainMap)>300) { | |
210 | TFile *curfile = AliAnalysisManager::GetAnalysisManager()->GetTree()->GetCurrentFile(); | |
211 | if (curfile) printf(">>> p+ in file: %s \t event: %i \t Number of ESD tracks: %i \n", curfile->GetName(), (int)event->GetEventNumberInFile(), (int)ntracks); | |
212 | if (track->GetOuterParam()->GetAlpha()<0) cout << " Polartiy: " << track->GetSign() << endl; | |
213 | } | |
214 | ||
215 | } | |
216 | ||
9b27d39b | 217 | } |
54b76c13 | 218 | |
9b27d39b | 219 | if (ntracks<2) return; |
220 | // | |
221 | // Find pairs | |
222 | // | |
223 | for (Int_t i=0;i<ntracks;++i) { | |
224 | AliESDtrack *track0 = event->GetTrack(i); | |
04087794 | 225 | // track0 - choosen upper part |
226 | if (!track0) continue; | |
227 | if (!track0->GetOuterParam()) continue; | |
228 | if (track0->GetOuterParam()->GetAlpha()<0) continue; | |
9b27d39b | 229 | Double_t d1[3]; |
230 | track0->GetDirection(d1); | |
04087794 | 231 | for (Int_t j=0;j<ntracks;++j) { |
232 | if (i==j) continue; | |
233 | AliESDtrack *track1 = event->GetTrack(j); | |
234 | //track 1 lower part | |
235 | if (!track1) continue; | |
236 | if (!track1->GetOuterParam()) continue; | |
237 | if (track1->GetOuterParam()->GetAlpha()>0) continue; | |
238 | // | |
239 | Double_t d2[3]; | |
240 | track1->GetDirection(d2); | |
54b76c13 | 241 | |
9b27d39b | 242 | AliTPCseed * seed0 = (AliTPCseed*) tpcSeeds.At(i); |
243 | AliTPCseed * seed1 = (AliTPCseed*) tpcSeeds.At(j); | |
244 | if (! seed0) continue; | |
245 | if (! seed1) continue; | |
bca20570 | 246 | Float_t dedx0 = seed0->CookdEdxNorm(0.05,0.55,0,0,159,fGainMap); |
247 | Float_t dedx1 = seed1->CookdEdxNorm(0.05,0.55,0,0,159,fGainMap); | |
248 | // | |
249 | Float_t dedx0I = seed0->CookdEdxNorm(0.05,0.55,0,0,63,fGainMap); | |
250 | Float_t dedx1I = seed1->CookdEdxNorm(0.05,0.55,0,0,63,fGainMap); | |
251 | // | |
252 | Float_t dedx0O = seed0->CookdEdxNorm(0.05,0.55,0,64,159,fGainMap); | |
253 | Float_t dedx1O = seed1->CookdEdxNorm(0.05,0.55,0,64,159,fGainMap); | |
254 | // | |
9b27d39b | 255 | Float_t dir = (d1[0]*d2[0] + d1[1]*d2[1] + d1[2]*d2[2]); |
256 | Float_t d0 = track0->GetLinearD(0,0); | |
257 | Float_t d1 = track1->GetLinearD(0,0); | |
258 | // | |
259 | // conservative cuts - convergence to be guarantied | |
260 | // applying before track propagation | |
261 | if (TMath::Abs(d0+d1)>fCutMaxD) continue; // distance to the 0,0 | |
262 | if (dir>fCutMinDir) continue; // direction vector product | |
263 | Float_t bz = AliTracker::GetBz(); | |
264 | Float_t dvertex0[2]; //distance to 0,0 | |
265 | Float_t dvertex1[2]; //distance to 0,0 | |
266 | track0->GetDZ(0,0,0,bz,dvertex0); | |
267 | track1->GetDZ(0,0,0,bz,dvertex1); | |
268 | if (TMath::Abs(dvertex0[1])>250) continue; | |
269 | if (TMath::Abs(dvertex1[1])>250) continue; | |
270 | // | |
271 | // | |
272 | // | |
273 | Float_t dmax = TMath::Max(TMath::Abs(d0),TMath::Abs(d1)); | |
274 | AliExternalTrackParam param0(*track0); | |
275 | AliExternalTrackParam param1(*track1); | |
276 | // | |
277 | // Propagate using Magnetic field and correct fo material budget | |
278 | // | |
279 | AliTracker::PropagateTrackTo(¶m0,dmax+1,0.0005,3,kTRUE); | |
280 | AliTracker::PropagateTrackTo(¶m1,dmax+1,0.0005,3,kTRUE); | |
281 | // | |
282 | // Propagate rest to the 0,0 DCA - z should be ignored | |
283 | // | |
284 | Bool_t b0 = param0.PropagateToDCA(&vtx,bz,1000); | |
285 | Bool_t b1 = param1.PropagateToDCA(&vtx,bz,1000); | |
286 | // | |
287 | param0.GetDZ(0,0,0,bz,dvertex0); | |
288 | param1.GetDZ(0,0,0,bz,dvertex1); | |
289 | // | |
290 | Double_t xyz0[3];//,pxyz0[3]; | |
291 | Double_t xyz1[3];//,pxyz1[3]; | |
292 | param0.GetXYZ(xyz0); | |
293 | param1.GetXYZ(xyz1); | |
294 | Bool_t isPair = IsPair(¶m0,¶m1); | |
295 | // | |
54b76c13 | 296 | if (isPair) FillAcordeHist(track0); |
297 | // | |
9b27d39b | 298 | if (fStreamLevel>0){ |
299 | TTreeSRedirector * cstream = GetDebugStreamer(); | |
300 | printf("My stream=%p\n",(void*)cstream); | |
301 | if (cstream) { | |
302 | (*cstream) << "Track0" << | |
303 | "dir="<<dir<< // direction | |
54b76c13 | 304 | "OK="<<isPair<< // will be accepted |
9b27d39b | 305 | "b0="<<b0<< // propagate status |
306 | "b1="<<b1<< // propagate status | |
307 | "Orig0.=" << track0 << // original track 0 | |
308 | "Orig1.=" << track1 << // original track 1 | |
309 | "Tr0.="<<¶m0<< // track propagated to the DCA 0,0 | |
310 | "Tr1.="<<¶m1<< // track propagated to the DCA 0,0 | |
311 | "v00="<<dvertex0[0]<< // distance using kalman | |
312 | "v01="<<dvertex0[1]<< // | |
313 | "v10="<<dvertex1[0]<< // | |
314 | "v11="<<dvertex1[1]<< // | |
315 | "d0="<<d0<< // linear distance to 0,0 | |
316 | "d1="<<d1<< // linear distance to 0,0 | |
317 | // | |
318 | "x00="<<xyz0[0]<< | |
319 | "x01="<<xyz0[1]<< | |
320 | "x02="<<xyz0[2]<< | |
321 | // | |
322 | "x10="<<xyz1[0]<< | |
323 | "x11="<<xyz1[1]<< | |
324 | "x12="<<xyz1[2]<< | |
325 | // | |
54b76c13 | 326 | "Seed0.=" << seed0 << // original seed 0 |
327 | "Seed1.=" << seed1 << // original seed 1 | |
bca20570 | 328 | // |
329 | "dedx0="<<dedx0<< // dedx0 - all | |
330 | "dedx1="<<dedx1<< // dedx1 - all | |
331 | // | |
54b76c13 | 332 | "dedx0I="<<dedx0I<< // dedx0 - inner ROC |
333 | "dedx1I="<<dedx1I<< // dedx1 - inner ROC | |
bca20570 | 334 | // |
54b76c13 | 335 | "dedx0O="<<dedx0O<< // dedx0 - outer ROC |
336 | "dedx1O="<<dedx1O<< // dedx1 - outer ROC | |
9b27d39b | 337 | "\n"; |
338 | } | |
339 | } | |
340 | } | |
341 | } | |
342 | } | |
343 | ||
9b27d39b | 344 | |
bca20570 | 345 | |
346 | ||
54b76c13 | 347 | void AliTPCcalibCosmic::FillAcordeHist(AliESDtrack *upperTrack) { |
348 | ||
349 | // Pt cut to select straight tracks which can be easily propagated to ACORDE which is outside the magnetic field | |
350 | if (upperTrack->Pt() < 10 || upperTrack->GetTPCNcls() < 80) return; | |
351 | ||
352 | const Double_t AcordePlane = 850.; // distance of the central Acorde detectors to the beam line at y =0 | |
353 | const Double_t roof = 210.5; // distance from x =0 to end of magnet roof | |
354 | ||
355 | Double_t r[3]; | |
356 | upperTrack->GetXYZ(r); | |
357 | Double_t d[3]; | |
358 | upperTrack->GetDirection(d); | |
359 | Double_t x,z; | |
360 | z = r[2] + (d[2]/d[1])*(AcordePlane - r[1]); | |
361 | x = r[0] + (d[0]/d[1])*(AcordePlane - r[1]); | |
362 | ||
363 | if (x > roof) { | |
364 | x = r[0] + (d[0]/(d[0]+d[1]))*(AcordePlane+roof-r[0]-r[1]); | |
365 | z = r[2] + (d[2]/(d[0]+d[1]))*(AcordePlane+roof-r[0]-r[1]); | |
366 | } | |
367 | if (x < -roof) { | |
368 | x = r[0] + (d[0]/(d[1]-d[0]))*(AcordePlane+roof+r[0]-r[1]); | |
369 | z = r[2] + (d[2]/(d[1]-d[0]))*(AcordePlane+roof+r[0]-r[1]); | |
370 | } | |
371 | ||
372 | fModules->Fill(z, x); | |
373 | ||
374 | } | |
375 | ||
376 | ||
377 | ||
bca20570 | 378 | Long64_t AliTPCcalibCosmic::Merge(TCollection *li) { |
379 | ||
380 | TIterator* iter = li->MakeIterator(); | |
381 | AliTPCcalibCosmic* cal = 0; | |
382 | ||
383 | while ((cal = (AliTPCcalibCosmic*)iter->Next())) { | |
384 | if (!cal->InheritsFrom(AliTPCcalibCosmic::Class())) { | |
385 | Error("Merge","Attempt to add object of class %s to a %s", cal->ClassName(), this->ClassName()); | |
386 | return -1; | |
387 | } | |
388 | ||
54b76c13 | 389 | fHistNTracks->Add(cal->GetHistNTracks()); |
390 | fClusters->Add(cal-> GetHistClusters()); | |
391 | fModules->Add(cal->GetHistAcorde()); | |
392 | fHistPt->Add(cal->GetHistPt()); | |
393 | fDeDx->Add(cal->GetHistDeDx()); | |
394 | fDeDxMIP->Add(cal->GetHistMIP()); | |
bca20570 | 395 | |
396 | } | |
397 | ||
398 | return 0; | |
9b27d39b | 399 | |
f7f33dec | 400 | } |
401 | ||
54b76c13 | 402 | |
9b27d39b | 403 | Bool_t AliTPCcalibCosmic::IsPair(AliExternalTrackParam *tr0, AliExternalTrackParam *tr1){ |
404 | // | |
405 | // | |
406 | /* | |
407 | // 0. Same direction - OPOSITE - cutDir +cutT | |
408 | TCut cutDir("cutDir","dir<-0.99") | |
409 | // 1. | |
410 | TCut cutT("cutT","abs(Tr1.fP[3]+Tr0.fP[3])<0.03") | |
411 | // | |
412 | // 2. The same rphi | |
413 | TCut cutD("cutD","abs(Tr0.fP[0]+Tr1.fP[0])<5") | |
414 | // | |
415 | // | |
416 | // | |
417 | TCut cutPt("cutPt","abs(Tr1.fP[4]+Tr0.fP[4])<1&&abs(Tr0.fP[4])+abs(Tr1.fP[4])<10"); | |
418 | // 1/Pt diff cut | |
419 | */ | |
420 | const Double_t *p0 = tr0->GetParameter(); | |
421 | const Double_t *p1 = tr1->GetParameter(); | |
422 | if (TMath::Abs(p0[3]+p1[3])>fCutTheta) return kFALSE; | |
423 | if (TMath::Abs(p0[0]+p1[0])>fCutMaxD) return kFALSE; | |
424 | Double_t d0[3], d1[3]; | |
425 | tr0->GetDirection(d0); | |
426 | tr1->GetDirection(d1); | |
427 | if (d0[0]*d1[0] + d0[1]*d1[1] + d0[2]*d1[2] >fCutMinDir) return kFALSE; | |
428 | // | |
429 | return kTRUE; | |
430 | } | |
54b76c13 | 431 | |
432 | ||
433 | ||
434 | Double_t AliTPCcalibCosmic::CalculateMIPvalue(TH1F * hist) { | |
435 | ||
436 | TF1 * funcDoubleGaus = new TF1("funcDoubleGaus", "gaus(0)+gaus(3)",0,1000); | |
437 | funcDoubleGaus->SetParameters(hist->GetEntries()*0.75,hist->GetMean()/1.3,hist->GetMean()*0.10, | |
438 | hist->GetEntries()*0.25,hist->GetMean()*1.3,hist->GetMean()*0.10); | |
439 | hist->Fit(funcDoubleGaus); | |
440 | Double_t MIPvalue = TMath::Min(funcDoubleGaus->GetParameter(1),funcDoubleGaus->GetParameter(4)); | |
441 | ||
442 | delete funcDoubleGaus; | |
443 | ||
444 | return MIPvalue; | |
445 | ||
446 | } | |
9b27d39b | 447 | |
448 | ||
f7f33dec | 449 | |
54b76c13 | 450 | |
451 | void AliTPCcalibCosmic::CalculateBetheParams(TH2F *hist, Double_t * initialParam) { | |
452 | ||
453 | return; | |
454 | ||
455 | } | |
456 | ||
457 | ||
f7f33dec | 458 | void AliTPCcalibCosmic::BinLogX(TH1 *h) { |
459 | ||
460 | // Method for the correct logarithmic binning of histograms | |
461 | ||
462 | TAxis *axis = h->GetXaxis(); | |
463 | int bins = axis->GetNbins(); | |
464 | ||
465 | Double_t from = axis->GetXmin(); | |
466 | Double_t to = axis->GetXmax(); | |
467 | Double_t *new_bins = new Double_t[bins + 1]; | |
468 | ||
469 | new_bins[0] = from; | |
470 | Double_t factor = pow(to/from, 1./bins); | |
471 | ||
472 | for (int i = 1; i <= bins; i++) { | |
473 | new_bins[i] = factor * new_bins[i-1]; | |
474 | } | |
475 | axis->Set(bins, new_bins); | |
476 | delete new_bins; | |
477 | ||
478 | } | |
479 | ||
428b47be | 480 | AliExternalTrackParam *AliTPCcalibCosmic::Invert(AliExternalTrackParam *input) |
481 | { | |
482 | // | |
483 | // Invert paramerameter - not covariance yet | |
484 | // | |
485 | AliExternalTrackParam *output = new AliExternalTrackParam(*input); | |
486 | Double_t * param = (Double_t*)output->GetParameter(); | |
487 | param[0]*=-1; | |
488 | param[3]*=-1; | |
489 | param[4]*=-1; | |
490 | // | |
491 | return output; | |
492 | } | |
7b18d067 | 493 | |
bca20570 | 494 | |
54b76c13 | 495 | /* |
bca20570 | 496 | |
7b18d067 | 497 | void AliTPCcalibCosmic::dEdxCorrection(){ |
2acad464 | 498 | TCut cutT("cutT","abs(Tr1.fP[3]+Tr0.fP[3])<0.03"); // OK |
499 | TCut cutD("cutD","abs(Tr0.fP[0]+Tr1.fP[0])<5"); // OK | |
7b18d067 | 500 | TCut cutPt("cutPt","abs(Tr1.fP[4]+Tr0.fP[4])<0.2&&abs(Tr0.fP[4])+abs(Tr1.fP[4])<10"); |
2acad464 | 501 | TCut cutN("cutN","min(Orig0.fTPCncls,Orig1.fTPCncls)>70"); |
7b18d067 | 502 | TCut cutA=cutT+cutD+cutPt+cutN; |
503 | ||
5ab97d2b | 504 | |
505 | .x ~/UliStyle.C | |
506 | gSystem->Load("libANALYSIS"); | |
507 | gSystem->Load("libTPCcalib"); | |
508 | gSystem->AddIncludePath("-I$ALICE_ROOT/TPC/macros"); | |
509 | gROOT->LoadMacro("$ALICE_ROOT/TPC/macros/AliXRDPROOFtoolkit.cxx+") | |
510 | AliXRDPROOFtoolkit tool; | |
bca20570 | 511 | TChain * chain = tool.MakeChain("cosmic.txt","Track0",0,1000000); |
512 | chain->Lookup(); | |
7b18d067 | 513 | |
514 | .x ~/rootlogon.C | |
515 | gSystem->Load("libSTAT.so"); | |
516 | ||
517 | Double_t chi2=0; | |
518 | Int_t npoints=0; | |
519 | TVectorD fitParam; | |
520 | TMatrixD covMatrix; | |
521 | ||
522 | chain->Draw("Tr0.fP[4]+Tr1.fP[4]","OK"+cutA); | |
523 | ||
524 | TString strFit; | |
525 | strFit+="(Tr0.fP[1]/250)++"; | |
526 | strFit+="(Tr0.fP[1]/250)^2++"; | |
527 | strFit+="(Tr0.fP[3])++"; | |
528 | strFit+="(Tr0.fP[3])^2++"; | |
529 | ||
530 | TString * ptParam = TStatToolkit::FitPlane(chain,"Tr0.fP[4]+Tr1.fP[4]", strFit.Data(),cutA, chi2,npoints,fitParam,covMatrix) | |
531 | ||
532 | strFit+="(Tr0.fP[1]/250)++"; | |
533 | strFit+="(Tr0.fP[1]/250)^2++"; | |
534 | strFit+="(Tr0.fP[3])++"; | |
535 | strFit+="(Tr0.fP[3])^2++"; | |
536 | strFit+="(Tr0.fP[1]/250)^2*Tr0.fP[3]++"; | |
537 | strFit+="(Tr0.fP[1]/250)^2*Tr0.fP[3]^2++"; | |
538 | // | |
539 | ||
540 | strFit+="sign(Tr0.fP[1])++" | |
541 | strFit+="sign(Tr0.fP[1])*(1-abs(Tr0.fP[1]/250))" | |
542 | ||
543 | TString * thetaParam = TStatToolkit::FitPlane(chain,"Tr0.fP[3]+Tr1.fP[3]", strFit.Data(),cutA, chi2,npoints,fitParam,covMatrix) | |
bca20570 | 544 | |
545 | ||
546 | ||
547 | (-0.009263+(Tr0.fP[1]/250)*(-0.009693)+(Tr0.fP[1]/250)^2*(0.009062)+(Tr0.fP[3])*(0.002256)+(Tr0.fP[3])^2*(-0.052775)+(Tr0.fP[1]/250)^2*Tr0.fP[3]*(-0.020627)+(Tr0.fP[1]/250)^2*Tr0.fP[3]^2*(0.049030)) | |
548 | ||
7b18d067 | 549 | */ |
550 | ||
551 | ||
428b47be | 552 | /* |
553 | gSystem->Load("libANALYSIS"); | |
554 | gSystem->Load("libSTAT"); | |
555 | gSystem->Load("libTPCcalib"); | |
556 | ||
557 | TStatToolkit toolkit; | |
558 | Double_t chi2; | |
559 | TVectorD fitParam; | |
560 | TMatrixD covMatrix; | |
561 | Int_t npoints; | |
562 | // | |
563 | TCut cutT("cutT","abs(Tr1.fP[3]+Tr0.fP[3])<0.03"); // OK | |
564 | TCut cutD("cutD","abs(Tr0.fP[0]+Tr1.fP[0])<5"); // OK | |
565 | TCut cutPt("cutPt","abs(Tr1.fP[4]+Tr0.fP[4])<0.2&&abs(Tr0.fP[4])+abs(Tr1.fP[4])<10"); | |
566 | TCut cutN("cutN","min(Orig0.fTPCncls,Orig1.fTPCncls)>110"); | |
567 | TCut cutA="abs(norm-1)<0.3"+cutT+cutD+cutPt+cutN; | |
568 | ||
569 | ||
570 | ||
571 | TTree * chain = Track0; | |
572 | ||
573 | ||
574 | chain->SetAlias("norm","signalTot0.fElements[3]/signalTot1.fElements[3]"); | |
575 | // | |
576 | chain->SetAlias("dr1","(signalTot0.fElements[1]/signalTot0.fElements[3])"); | |
577 | chain->SetAlias("dr2","(signalTot0.fElements[2]/signalTot0.fElements[3])"); | |
578 | chain->SetAlias("dr4","(signalTot0.fElements[4]/signalTot0.fElements[3])"); | |
579 | chain->SetAlias("dr5","(signalTot0.fElements[5]/signalTot0.fElements[3])"); | |
580 | ||
581 | TString fstring=""; | |
582 | fstring+="dr1++"; | |
583 | fstring+="dr2++"; | |
584 | fstring+="dr4++"; | |
585 | fstring+="dr5++"; | |
586 | // | |
587 | fstring+="dr1*dr2++"; | |
588 | fstring+="dr1*dr4++"; | |
589 | fstring+="dr1*dr5++"; | |
590 | fstring+="dr2*dr4++"; | |
591 | fstring+="dr2*dr5++"; | |
592 | fstring+="dr4*dr5++"; | |
593 | ||
594 | ||
595 | ||
596 | TString *strqdedx = toolkit.FitPlane(chain,"norm",fstring->Data(), cutA, chi2,npoints,fitParam,covMatrix,-1,0,200000); | |
597 | ||
598 | chain->SetAlias("corQT",strqdedx->Data()); | |
599 | ||
600 | */ | |
601 | ||
602 | ||
603 | ||
604 | ||
605 | ||
606 |