Removed strange warning
[u/mrichter/AliRoot.git] / TPC / AliTPCcalibTime.cxx
CommitLineData
c74c5f6c 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 Comments to be written here:
18 1. What do we calibrate.
19
20Time dependence of gain and drift velocity in order to account for changes in: temperature, pressure, gas composition.
21
22 AliTPCcalibTime *calibTime = new AliTPCcalibTime("cosmicTime","cosmicTime",0, 1213.9e+06, 1213.96e+06, 0.04e+04, 0.04e+04);
23
24
25 2. How to interpret results
26 3. Simple example
27
28a.) determine the required time range:
29
30AliXRDPROOFtoolkit tool;
31TChain * chain = tool.MakeChain("pass2.txt","esdTree",0,6000);
32chain->Draw("GetTimeStamp()")
33
34b) analyse calibration object on Proof in calibration train
35
36AliTPCcalibTime *calibTime = new AliTPCcalibTime("cosmicTime","cosmicTime", StartTimeStamp, EndTimeStamp, IntegrationTimeVdrift, IntegrationTimeDeDx);
37
38c) plot results
39
40TFile f("CalibObjects.root");
828383be 41AliTPCcalibTime *cal = (AliTPCcalibTime *)f->Get("TPCCalib")->FindObject("cosmicTime");
c74c5f6c 42cal->GetHistVdrift()->Projection(1,0)->Draw()
43
44 4. Analysis using debug streamers.
45
da6c0bc9 46 gSystem->AddIncludePath("-I$ALICE_ROOT/TPC/macros");
47 gROOT->LoadMacro("$ALICE_ROOT/TPC/macros/AliXRDPROOFtoolkit.cxx+")
48 AliXRDPROOFtoolkit tool;
49 TChain * chainTime = tool.MakeChain("time.txt","timeInfo",0,10200);
50 chainTime->Lookup();
51
52
c74c5f6c 53*/
54
55
56#include "Riostream.h"
57#include "TChain.h"
58#include "TTree.h"
59#include "TH1F.h"
60#include "TH2F.h"
61#include "TH3F.h"
62#include "THnSparse.h"
63#include "TList.h"
64#include "TMath.h"
65#include "TCanvas.h"
66#include "TFile.h"
67#include "TF1.h"
68#include "TVectorD.h"
69#include "TProfile.h"
70#include "TGraphErrors.h"
71#include "TCanvas.h"
72
73#include "AliTPCclusterMI.h"
74#include "AliTPCseed.h"
75#include "AliESDVertex.h"
76#include "AliESDEvent.h"
77#include "AliESDfriend.h"
78#include "AliESDInputHandler.h"
79#include "AliAnalysisManager.h"
80
81#include "AliTracker.h"
82#include "AliMagFMaps.h"
83#include "AliTPCCalROC.h"
84
85#include "AliLog.h"
86
87#include "AliTPCcalibTime.h"
88
89#include "TTreeStream.h"
90#include "AliTPCTracklet.h"
da6c0bc9 91#include "TTimeStamp.h"
92#include "AliTPCcalibDB.h"
93#include "AliTPCcalibLaser.h"
c74c5f6c 94
95ClassImp(AliTPCcalibTime)
96
97
98AliTPCcalibTime::AliTPCcalibTime()
da6c0bc9 99 :AliTPCcalibBase(),
100 fTriggerMask(0),
c74c5f6c 101 fHistDeDxTgl(0),
102 fHistDeDx(0),
103 fHistVdrift(0),
104 fIntegrationTimeDeDx(0),
da6c0bc9 105 fIntegrationTimeVdrift(0),
106 fLaser(0), // pointer to laser calibration
107 fDz(0), // current delta z
108 fdEdx(0), // current dEdx
109 fdEdxRatio(0), // current dEdx ratio
110 fTl(0), // current tan(lambda)
c74c5f6c 111 fCutMaxD(5), // maximal distance in rfi ditection
da6c0bc9 112 fCutMaxDz(20), // maximal distance in rfi ditection
c74c5f6c 113 fCutTheta(0.03), // maximal distan theta
114 fCutMinDir(-0.99) // direction vector products
115
116{
117 AliInfo("Default Constructor");
118}
119
120
121AliTPCcalibTime::AliTPCcalibTime(const Text_t *name, const Text_t *title, ULong64_t TriggerMask, UInt_t StartTime, UInt_t EndTime, Int_t deltaIntegrationTimeDeDx, Int_t deltaIntegrationTimeVdrift)
122 :AliTPCcalibBase(),
123 fTriggerMask(0),
124 fHistDeDxTgl(0),
125 fHistDeDx(0),
126 fHistVdrift(0),
127 fIntegrationTimeDeDx(0),
da6c0bc9 128 fIntegrationTimeVdrift(0),
129 fLaser(0), // pointer to laser calibration
130 fDz(0), // current delta z
131 fdEdx(0), // current dEdx
132 fdEdxRatio(0), // current dEdx ratio
133 fTl(0), // current tan(lambda)
c74c5f6c 134 fCutMaxD(5), // maximal distance in rfi ditection
da6c0bc9 135 fCutMaxDz(20), // maximal distance in rfi ditection
c74c5f6c 136 fCutTheta(0.03), // maximal distan theta
137 fCutMinDir(-0.99) // direction vector products
138{
139
140 SetName(name);
141 SetTitle(title);
142
143 AliInfo("Non Default Constructor");
144
145 fTriggerMask = TriggerMask;
146
147 fIntegrationTimeDeDx = deltaIntegrationTimeDeDx;
148 fIntegrationTimeVdrift = deltaIntegrationTimeVdrift;
149
150 Double_t deltaTime = EndTime - StartTime;
151
828383be 152 Int_t binsVdrift[2] = {TMath::Nint(deltaTime/deltaIntegrationTimeVdrift), 100};
c74c5f6c 153 Double_t xminVdrift[2] = {StartTime, -20};
154 Double_t xmaxVdrift[2] = {EndTime, 20};
155 fHistVdrift = new THnSparseF("HistVdrift","vDrift; time;#Delta z",2,binsVdrift,xminVdrift,xmaxVdrift);
156
828383be 157 Int_t binsDeDxTgl[3] = {TMath::Nint(deltaTime/deltaIntegrationTimeDeDx),30,100};
c74c5f6c 158 Double_t xminDeDxTgl[3] = {StartTime,-1,0.7};
159 Double_t xmaxDeDxTgl[3] = {EndTime,1,1.3};
160 fHistDeDxTgl = new THnSparseF("HistDeDxTgl","dEdx vs tgl;time;tgl;dEdxUp/dEdxLow",3,binsDeDxTgl,xminDeDxTgl,xmaxDeDxTgl);
161
0ffd2ae1 162 Int_t binsDeDx[2] = {TMath::Nint(deltaTime/deltaIntegrationTimeDeDx),100};
c74c5f6c 163 Double_t xminDeDx[2] = {StartTime,1};
164 Double_t xmaxDeDx[2] = {EndTime,100};
165 fHistDeDx = new THnSparseF("HistDeDx","dEdx l;time;dEdx",2,binsDeDx,xminDeDx,xmaxDeDx);
166
167}
168
169
170
171AliTPCcalibTime::~AliTPCcalibTime(){
172 //
173 //
174 //
175}
da6c0bc9 176void AliTPCcalibTime::ResetCurrent(){
177 //
178 // reset current values
179 //
180 fDz=0; // current delta z
181 fdEdx=0; // current dEdx
182 fdEdxRatio=0; // current dEdx ratio
183 fTl=0; // current tan(lambda)
184
185}
186
c74c5f6c 187
188void AliTPCcalibTime::Process(AliESDEvent *event) {
189 //
190 //
191 //
da6c0bc9 192 Int_t ntracks=event->GetNumberOfTracks();
193 if (ntracks<2) return;
194 ResetCurrent();
195 //
c74c5f6c 196 ProcessCosmic(event);
da6c0bc9 197 if (fTrigger==16){
198 if (!fLaser) fLaser = new AliTPCcalibLaser("laserTPC","laserTPC",kFALSE);
199 fLaser->Process(event);
200 }
201 //
202 // fill debug streamer
203 if (fStreamLevel>0 && fDz!=0){
204 TTreeSRedirector *cstream = GetDebugStreamer();
205 if (cstream){
206 TTimeStamp tstamp(fTime);
207 Float_t valuePressure0 = AliTPCcalibDB::GetPressure(tstamp,fRun,0);
208 Float_t valuePressure1 = AliTPCcalibDB::GetPressure(tstamp,fRun,1);
209 Double_t ptrelative0 = AliTPCcalibDB::GetPTRelative(tstamp,fRun,0);
210 Double_t ptrelative1 = AliTPCcalibDB::GetPTRelative(tstamp,fRun,1);
211 Double_t temp0 = AliTPCcalibDB::GetTemperature(tstamp,fRun,0);
212 Double_t temp1 = AliTPCcalibDB::GetTemperature(tstamp,fRun,1);
213 TVectorD vdriftA, vdriftC,vdriftAC;
214 if (fLaser && fTrigger==16) {
215 if (fLaser->fFitAside) vdriftA=*(fLaser->fFitAside);
216 if (fLaser->fFitCside) vdriftC=*(fLaser->fFitCside);
217 if (fLaser->fFitACside) vdriftAC=*(fLaser->fFitACside);
218 }
219 (*cstream)<<"timeInfo"<<
220 "run="<<fRun<< // run number
221 "event="<<fEvent<< // event number
222 "time="<<fTime<< // time stamp of event
223 "trigger="<<fTrigger<< // trigger
224 "mag="<<fMagF<< // magnetic field
225 // Environment values
226 "press0="<<valuePressure0<<
227 "press1="<<valuePressure1<<
228 "pt0="<<ptrelative0<<
229 "pt1="<<ptrelative1<<
230 "temp0="<<temp0<<
231 "temp1="<<temp1<<
232 //
233 // accumulated values
234 //
235 "fDz="<<fDz<< //! current delta z
236 "fdEdx="<<fdEdx<< //! current dEdx
237 "fdEdxRatio="<<fdEdxRatio<< //! current dEdx ratio
238 "fTl="<<fTl<< //! current tan(lambda)
239 //
240 //laser
241 //
242 "laserA.="<<&vdriftA<<
243 "laserC.="<<&vdriftC<<
244 "laserAC.="<<&vdriftAC<<
245 "\n";
246 }
247 }
c74c5f6c 248}
249
250
251
252void AliTPCcalibTime::ProcessCosmic(AliESDEvent *event) {
253
254 if (!event) {
255 Printf("ERROR: ESD not available");
256 return;
257 }
258 if (event->GetTimeStamp() == 0 ) {
259 Printf("no time stamp!");
260 return;
261 }
262
263 if (fTriggerMask != 0 && event->GetTriggerMask() != fTriggerMask) return;
264
265 UInt_t time = event->GetTimeStamp();
266
267 //
268 // Find cosmic pairs
269 //
270 // Track0 is choosen in upper TPC part
271 // Track1 is choosen in lower TPC part
272 //
273 Int_t ntracks=event->GetNumberOfTracks();
274 if (ntracks==0) return;
275 if (ntracks > 10) return; // temporary debug to remove LASER events
276
277
278 if (GetDebugLevel()>1) printf("Hallo world: Im here\n");
279 AliESDfriend *ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
280
281 TObjArray tpcSeeds(ntracks);
282 Double_t vtxx[3]={0,0,0};
283 Double_t svtxx[3]={0.000001,0.000001,100.};
284 AliESDVertex vtx(vtxx,svtxx);
285 //
286 // track loop
287 //
288 for (Int_t i=0;i<ntracks;++i) {
289 AliESDtrack *track = event->GetTrack(i);
290
291 const AliExternalTrackParam * trackIn = track->GetInnerParam();
292 const AliExternalTrackParam * trackOut = track->GetOuterParam();
293 if (!trackIn) continue;
294 if (!trackOut) continue;
295
296 AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i);
297 TObject *calibObject;
298 AliTPCseed *seed = 0;
299 for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
300 if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break;
301 }
302 if (seed) {
303 tpcSeeds.AddAt(seed,i);
304 if (track->GetTPCNcls() > 50) {
305 Double_t meanP = 0.5*(trackIn->GetP() + trackOut->GetP());
306 Double_t TPCsignal = seed->CookdEdxNorm(0.0,0.6,1,0,159,0x0,kTRUE,kTRUE);
307 Double_t vecDeDx[2] = {time, TPCsignal};
da6c0bc9 308 if (meanP > 12) {
309 fdEdx = TPCsignal;
310 fHistDeDx->Fill(vecDeDx);
311 }
c74c5f6c 312 }
313 }
314 }
315
316 if (ntracks<2) return;
317 //
318 // Find pairs
319 //
320 for (Int_t i=0;i<ntracks;++i) {
321 AliESDtrack *track0 = event->GetTrack(i);
322 // track0 - choosen upper part
323 if (!track0) continue;
324 if (!track0->GetOuterParam()) continue;
325 if (track0->GetOuterParam()->GetAlpha()<0) continue;
326 Double_t d1[3];
327 track0->GetDirection(d1);
328 for (Int_t j=0;j<ntracks;++j) {
329 if (i==j) continue;
330 AliESDtrack *track1 = event->GetTrack(j);
331 //track 1 lower part
332 if (!track1) continue;
333 if (!track1->GetOuterParam()) continue;
334 if (track1->GetOuterParam()->GetAlpha()>0) continue;
335 //
336 Double_t d2[3];
337 track1->GetDirection(d2);
338
339 AliTPCseed * seed0 = (AliTPCseed*) tpcSeeds.At(i);
340 AliTPCseed * seed1 = (AliTPCseed*) tpcSeeds.At(j);
341 if (! seed0) continue;
342 if (! seed1) continue;
343 Float_t dir = (d1[0]*d2[0] + d1[1]*d2[1] + d1[2]*d2[2]);
344 Float_t d0 = track0->GetLinearD(0,0);
345 Float_t d1 = track1->GetLinearD(0,0);
346 //
347 // conservative cuts - convergence to be guarantied
348 // applying before track propagation
349 if (TMath::Abs(d0+d1)>fCutMaxD) continue; // distance to the 0,0
350 if (dir>fCutMinDir) continue; // direction vector product
351 Float_t bz = AliTracker::GetBz();
352 Float_t dvertex0[2]; //distance to 0,0
353 Float_t dvertex1[2]; //distance to 0,0
354 track0->GetDZ(0,0,0,bz,dvertex0);
355 track1->GetDZ(0,0,0,bz,dvertex1);
356 if (TMath::Abs(dvertex0[1])>250) continue;
357 if (TMath::Abs(dvertex1[1])>250) continue;
358 //
359 //
360 //
361 Float_t dmax = TMath::Max(TMath::Abs(d0),TMath::Abs(d1));
362 AliExternalTrackParam param0(*track0);
363 AliExternalTrackParam param1(*track1);
364 //
365 // Propagate using Magnetic field and correct fo material budget
366 //
367 AliTracker::PropagateTrackTo(&param0,dmax+1,0.0005,3,kTRUE);
368 AliTracker::PropagateTrackTo(&param1,dmax+1,0.0005,3,kTRUE);
369 //
370 // Propagate rest to the 0,0 DCA - z should be ignored
371 //
828383be 372 //Bool_t b0 = ;
373 param0.PropagateToDCA(&vtx,bz,1000);
374 //Bool_t b1 =
375 param1.PropagateToDCA(&vtx,bz,1000);
c74c5f6c 376 //
377 param0.GetDZ(0,0,0,bz,dvertex0);
378 param1.GetDZ(0,0,0,bz,dvertex1);
379 //
380 Double_t xyz0[3];//,pxyz0[3];
381 Double_t xyz1[3];//,pxyz1[3];
382 param0.GetXYZ(xyz0);
383 param1.GetXYZ(xyz1);
384 Bool_t isPair = IsPair(&param0,&param1);
385
386 Double_t z0 = track0->GetOuterParam()->GetZ();
387 Double_t z1 = track1->GetOuterParam()->GetZ();
388
389 Double_t z0inner = track0->GetInnerParam()->GetZ();
390 Double_t z1inner = track1->GetInnerParam()->GetZ();
391
392 if (isPair && z0>0 && z0inner>0 && z1<0 && z1inner<0) {
393 Double_t vecVdrift[2] = {time, param0.GetZ() - param1.GetZ()};
394
da6c0bc9 395 if (track0->GetTPCNcls() > 80) {
396 fHistVdrift->Fill(vecVdrift);
397 fDz = param0.GetZ() - param1.GetZ();
398 }
c74c5f6c 399 }
400 if (isPair && z0 > 0 && z1 > 0) {
401 if (track1->GetTPCNcls()> 110 && track0->GetTPCNcls()> 110 && seed1->CookdEdxNorm(0,0.6,1,0,159,0,kFALSE,kTRUE) > 0) {
da6c0bc9 402 Float_t dedxratio = seed0->CookdEdxNorm(0,0.6,1,0,159,0,kFALSE,kTRUE)/seed1->CookdEdxNorm(0,0.6,1,0,159,0,kFALSE,kTRUE);
c74c5f6c 403 Double_t vecDeDxTgl[3] = {time, track0->GetTgl(), seed0->CookdEdxNorm(0,0.6,1,0,159,0,kFALSE,kTRUE)/seed1->CookdEdxNorm(0,0.6,1,0,159,0,kFALSE,kTRUE)};
404 fHistDeDxTgl->Fill(vecDeDxTgl);
da6c0bc9 405 fdEdxRatio = dedxratio;
406 fTl = track0->GetTgl() ;
c74c5f6c 407 }
408 }
409
410 } // end 2nd order loop
411 } // end 1st order loop
412
413}
414
415
416void AliTPCcalibTime::Analyze() {
828383be 417 //
418 //
419 //
c74c5f6c 420 TH2D * hVdrift = GetHistVdrift()->Projection(1,0);
0ffd2ae1 421 hVdrift->Draw();
c74c5f6c 422}
423
424
425Long64_t AliTPCcalibTime::Merge(TCollection *li) {
426
427 TIterator* iter = li->MakeIterator();
428 AliTPCcalibTime* cal = 0;
429
430 while ((cal = (AliTPCcalibTime*)iter->Next())) {
431 if (!cal->InheritsFrom(AliTPCcalibTime::Class())) {
432 Error("Merge","Attempt to add object of class %s to a %s", cal->ClassName(), this->ClassName());
433 return -1;
434 }
435
436 // add histograms here...
437 fHistDeDxTgl->Add(cal->GetHistDeDxVsTgl());
438 fHistVdrift->Add(cal->GetHistVdrift());
439 fHistDeDx->Add(cal->GetHistDeDx());
440
441 }
442
443 return 0;
444
445}
446
447
448
449Bool_t AliTPCcalibTime::IsPair(AliExternalTrackParam *tr0, AliExternalTrackParam *tr1){
450 //
451 //
452 /*
453 // 0. Same direction - OPOSITE - cutDir +cutT
454 TCut cutDir("cutDir","dir<-0.99")
455 // 1.
456 TCut cutT("cutT","abs(Tr1.fP[3]+Tr0.fP[3])<0.03")
457 //
458 // 2. The same rphi
459 TCut cutD("cutD","abs(Tr0.fP[0]+Tr1.fP[0])<5")
460 //
461 //
462 //
463 TCut cutPt("cutPt","abs(Tr1.fP[4]+Tr0.fP[4])<1&&abs(Tr0.fP[4])+abs(Tr1.fP[4])<10");
464 // 1/Pt diff cut
465 */
466 const Double_t *p0 = tr0->GetParameter();
467 const Double_t *p1 = tr1->GetParameter();
468 if (TMath::Abs(p0[3]+p1[3])>fCutTheta) return kFALSE;
469 if (TMath::Abs(p0[0]+p1[0])>fCutMaxD) return kFALSE;
da6c0bc9 470 if (TMath::Abs(p0[1]-p1[1])>fCutMaxDz) return kFALSE;
c74c5f6c 471 Double_t d0[3], d1[3];
472 tr0->GetDirection(d0);
473 tr1->GetDirection(d1);
474 if (d0[0]*d1[0] + d0[1]*d1[1] + d0[2]*d1[2] >fCutMinDir) return kFALSE;
475 //
476 return kTRUE;
477}