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17 // TRD dEdx base utils
24 // lu@physi.uni-heidelberg.de
33 #include "THnSparse.h"
37 #include "TObjArray.h"
39 #include "TStopwatch.h"
42 #include "TTreeStream.h"
45 #include "AliCDBMetaData.h"
46 #include "AliCDBStorage.h"
47 #include "AliESDEvent.h"
48 #include "AliESDfriendTrack.h"
49 #include "AliESDtrack.h"
50 #include "AliTRDcalibDB.h"
51 #include "AliTRDCalROC.h"
52 #include "AliTRDtrackV1.h"
54 #include "AliTRDdEdxBaseUtils.h"
58 Double_t AliTRDdEdxBaseUtils::fgQ0Frac = 0.3;
59 Double_t AliTRDdEdxBaseUtils::fgQ1Frac = 0.5;
60 Double_t AliTRDdEdxBaseUtils::fgTimeBinCountCut = 0.0;
61 Int_t AliTRDdEdxBaseUtils::fgCalibTPCnclsCut = 70;
62 Bool_t AliTRDdEdxBaseUtils::fgExBOn = kTRUE;
63 Bool_t AliTRDdEdxBaseUtils::fgPadGainOn = kTRUE;
64 Double_t AliTRDdEdxBaseUtils::fgQScale = 45;
66 //===================================================================================
68 //===================================================================================
69 void AliTRDdEdxBaseUtils::GetCDFCuts(const TH1D *hh, const Int_t ncut, Double_t cuts[], const Double_t cdfs[], const Double_t thres)
72 //counts of hh is sorted
75 for(Int_t ii=0; ii<ncut; ii++){
80 const Int_t nbin = hh->GetNbinsX();
82 for(Int_t ii=1; ii<=nbin; ii++){
83 const Double_t res = hh->GetBinContent(ii);
95 TMath::Sort(nsel, datas, id, kFALSE);
97 for(Int_t ii=0; ii<ncut; ii++){
98 const Double_t icdf = cdfs[ii];
100 printf("AliTRDdEdxBaseUtils::GetCDFCuts error cdfs[%d] %15f out of range!\n", ii, icdf); exit(1);
102 cuts[ii] = datas[id[Int_t(icdf*nsel)]];
106 Double_t AliTRDdEdxBaseUtils::GetMeanRMS(const Double_t nn, const Double_t sum, const Double_t w2s, Double_t * grms, Double_t * gerr)
109 //calculate mean (with error) and rms from sum, w2s, nn
110 //if nn=0, mean, error, and rms all = 0
113 Double_t tmean = 0, trms = 0, terr = 0;
118 const Double_t arg = w2s/nn-tmean*tmean;
119 if(TMath::Abs(arg)<EPSILON){
124 printf("AliTRDdEdxBaseUtils::GetMeanRMS error negative sqrt argument!! %e -- %e %e %f\n", arg, w2s, sum, nn); exit(1);
127 trms = TMath::Sqrt(arg);
130 terr = trms/TMath::Sqrt(nn);
144 Double_t AliTRDdEdxBaseUtils::TruncatedMean(const Int_t nx, const Double_t xdata[], const Double_t lowfrac, const Double_t highfrac, Double_t * grms, Double_t * gerr, Double_t *wws)
147 //calculate truncated mean
148 //return <x*w>_{low-high according to x}
153 for(Int_t ii=0; ii<nx; ii++){
154 printf("test %d/%d %f\n", ii, nx, xdata[ii]);
160 TMath::Sort(nx, xdata, index, kFALSE);
165 const Int_t istart = Int_t (nx*lowfrac);
166 const Int_t istop = Int_t (nx*highfrac);
168 //=,< correct, because when low=0, high=1 it is correct
169 for(Int_t ii=istart; ii<istop; ii++){
172 weight = wws[index[ii]];
174 const Double_t sx = xdata[index[ii]]*weight;
180 //printf("test in loop %d/%d %f %f %f\n", ii, nused, sx, sum, w2s);
184 return GetMeanRMS(nused, sum, w2s, grms, gerr);
187 Double_t AliTRDdEdxBaseUtils::TruncatedMean(const TH1 *hh, const Double_t lowfrac, const Double_t highfrac, Double_t * grms, Double_t * gerr)
190 //do truncation on histogram
192 //if hh is scaled, be sure Sumw2 is called before scaling!! then mean, rms and err will all be correct
194 //with under-/over-flow
195 Double_t npreTrunc = 0;
196 for(Int_t itmp=0; itmp<=hh->GetNbinsX()+1; itmp++){
197 const Double_t be = hh->GetBinError(itmp);
198 const Double_t bc = hh->GetBinContent(itmp);
201 printf("AliTRDdEdxBaseUtils::TruncatedMean (hist) error %e %e %d\n", bc, be, itmp); exit(1);
205 npreTrunc += bc*bc/be/be;
208 const Double_t nstart = npreTrunc*lowfrac;
209 const Double_t nstop = npreTrunc*highfrac;
211 //with Double_t this should also handle normalized hist
216 for(Int_t itmp=0; itmp<=hh->GetNbinsX()+1; itmp++){
217 const Double_t be = hh->GetBinError(itmp);
218 const Double_t bc = hh->GetBinContent(itmp);
221 printf("AliTRDdEdxBaseUtils::TruncatedMean (hist) error %e %e %d\n", bc, be, itmp); exit(1);
225 const Double_t weight = bc*bc/be/be;
227 //<= correct, because when high=1, nstop has to be included
228 if(ntot>nstart && ntot<=nstop){
230 const Double_t val = hh->GetBinCenter(itmp);
232 w2s += weight*val*val;
236 //printf("test %d %f %f --- %f %f -- %f %f\n", itmp, weight, val, sum, w2s, nused, nsample);
239 if(itmp>=hh->GetNbinsX()){
240 printf("AliTRDdEdxBaseUtils::TruncatedMean warning hist range too small %s %f %f %d %d, %15f %15f %15f; nused w2s sum set to 0\n", hh->GetName(), hh->GetBinLowEdge(1), hh->GetBinLowEdge(itmp), itmp, hh->GetNbinsX(), hh->GetBinContent(hh->GetNbinsX())/hh->Integral(0,hh->GetNbinsX()+1), hh->GetBinContent(hh->GetNbinsX()), hh->Integral(0,hh->GetNbinsX()+1)); //exit(1);
248 return GetMeanRMS(nused, sum, w2s, grms, gerr);
251 void AliTRDdEdxBaseUtils::FitSlicesY(const TH2D *hh, TH1D *&hnor, TH1D *&hmpv, TH1D *&hwid, TH1D *&hres, const Double_t thres, const Double_t lowfrac, const Double_t highfrac)
254 //fit slices of hh using truncation
257 const Int_t x0 = hh->GetXaxis()->GetFirst();
258 const Int_t x1 = hh->GetXaxis()->GetLast();
259 const Int_t y0 = hh->GetYaxis()->GetFirst();
260 const Int_t y1 = hh->GetYaxis()->GetLast();
262 const Int_t nx = hh->GetNbinsX();
263 const Int_t ny = hh->GetNbinsY();
264 const Double_t xmin = hh->GetXaxis()->GetXmin();
265 const Double_t xmax = hh->GetXaxis()->GetXmax();
266 const Double_t ymin = hh->GetYaxis()->GetXmin();
267 const Double_t ymax = hh->GetYaxis()->GetXmax();
269 hnor = new TH1D(Form("%s_amp",hh->GetName()), "", nx, xmin, xmax);
270 hmpv = new TH1D(Form("%s_mpv",hh->GetName()), "", nx, xmin, xmax);
271 hwid = new TH1D(Form("%s_wid",hh->GetName()), "", nx, xmin, xmax);
272 hres = new TH1D(Form("%s_res",hh->GetName()), "", nx, xmin, xmax);
274 for(Int_t ix=x0; ix<=x1; ix++){
276 const Double_t rawcount = hh->Integral(ix,ix,0, ny+1);
277 if(rawcount<EPSILON){
281 TH1D *htmp = new TH1D(Form("FitSlicesY_%s_%d", hh->GetName(), ix),"",ny, ymin, ymax);
283 for(Int_t iy=y0; iy<=y1; iy++){
284 const Double_t be = hh->GetBinError(ix,iy);
285 const Double_t bc = hh->GetBinContent(ix, iy);
289 printf("AliTRDdEdxBaseUtils::FitSlicesY error %d %d %e %e\n", ix, iy, be, bc); exit(1);
294 htmp->SetBinContent(iy, bc);
295 htmp->SetBinError(iy, be);
297 ntot += (bc/be)*(bc/be);
299 //if(be) printf("test %d %d : %f %f %f\n", ix, iy, bc, be, pow(bc/be,2));
302 hnor->SetBinContent(ix, ntot);
303 hnor->SetBinError( ix, 0);
305 if(ntot<thres || htmp->GetRMS()<EPSILON){
311 Double_t trms = -999, terr = -999;
312 const Double_t tmean = TruncatedMean(htmp, lowfrac, highfrac, &trms, &terr);
314 hmpv->SetBinContent(ix, tmean);
315 hmpv->SetBinError( ix, terr);
317 hwid->SetBinContent(ix, trms);
318 hwid->SetBinError( ix, 0);
320 hres->SetBinContent(ix, tmean>EPSILON ? trms/tmean:0);
321 hres->SetBinError( ix, 0);
326 TH1 *hhs[]={hnor, hmpv, hwid, hres};
327 const TString yt[]={"N", "MPV", "#sigma", "#sigma/MPV"};
328 const Int_t nh = sizeof(hhs)/sizeof(TH1*);
329 for(Int_t ii=0; ii<nh; ii++){
330 hhs[ii]->SetYTitle(Form("%s of %s", yt[ii].Data(), hh->GetYaxis()->GetTitle()));
331 hhs[ii]->SetXTitle(hh->GetXaxis()->GetTitle());
332 hhs[ii]->GetYaxis()->SetTitleOffset(hh->GetYaxis()->GetTitleOffset());
333 hhs[ii]->SetTitle(hh->GetTitle());
337 //===================================================================================
338 // TRD Analysis Fast Tool
339 //===================================================================================
341 Int_t AliTRDdEdxBaseUtils::GetNtracklet(const AliESDEvent *esd)
344 //number of trd tracklet in one esd event
346 const Int_t ntrk0 = esd->GetNumberOfTracks();
348 for(Int_t ii=0; ii<ntrk0; ii++){
349 ntrdv1 += esd->GetTrack(ii)->GetTRDntracklets();
354 AliTRDtrackV1 * AliTRDdEdxBaseUtils::GetTRDtrackV1(const AliESDtrack * esdtrack)
357 //Get TRD friend track
360 AliESDfriendTrack * friendtrk = (AliESDfriendTrack *)esdtrack->GetFriendTrack();
362 //printf("xlulog AliAnalysisTaskCosmicTRD::GetTRDtrack no friend!!\n"); exit(1);
366 TObject *calibObject=0x0;
367 AliTRDtrackV1 * trdtrack=0x0;
368 for(Int_t l=0; (calibObject=friendtrk->GetCalibObject(l)); l++) {
369 if( (trdtrack=dynamic_cast<AliTRDtrackV1*>(calibObject)) )
376 Bool_t AliTRDdEdxBaseUtils::IsInSameStack(const AliTRDtrackV1 *trdtrack)
379 // to check if all tracklets are in the same stack, useful in cosmic
382 TVectorD secs(18), stks(5);
384 for(Int_t ilayer = 0; ilayer < 6; ilayer++){
385 AliTRDseedV1 *tracklet=trdtrack->GetTracklet(ilayer);
389 const Int_t det = tracklet->GetDetector();
390 const Int_t isector = AliTRDgeometry::GetSector(det);
391 const Int_t istack = AliTRDgeometry::GetStack(det);
397 if(secs.Sum()!=1 || stks.Sum()!=1){
404 Bool_t AliTRDdEdxBaseUtils::GetFirstSectorStackMomentum(const AliTRDtrackV1 *trdtrack, Int_t & isec, Int_t & istk, Double_t & mom)
412 for(Int_t ilayer = 0; ilayer < 6; ilayer++){
413 AliTRDseedV1 *tracklet=trdtrack->GetTracklet(ilayer);
417 const Int_t det = tracklet->GetDetector();
418 isec = AliTRDgeometry::GetSector(det);
419 istk = AliTRDgeometry::GetStack(det);
421 mom = tracklet->GetMomentum();
432 //===================================================================================
433 // Detector and Data Constant
434 //===================================================================================
435 Int_t AliTRDdEdxBaseUtils::ToDetector(const Int_t gtb)
440 return gtb/AliTRDseedV1::kNtb;
443 Int_t AliTRDdEdxBaseUtils::ToTimeBin(const Int_t gtb)
448 return gtb%AliTRDseedV1::kNtb;
451 Int_t AliTRDdEdxBaseUtils::ToSector(const Int_t gtb)
456 return AliTRDgeometry::GetSector(ToDetector(gtb));
459 Int_t AliTRDdEdxBaseUtils::ToStack(const Int_t gtb)
464 return AliTRDgeometry::GetStack(ToDetector(gtb));
467 Int_t AliTRDdEdxBaseUtils::ToLayer(const Int_t gtb)
472 return AliTRDgeometry::GetLayer(ToDetector(gtb));
475 TString AliTRDdEdxBaseUtils::GetRunType(const Int_t run)
482 if(run>=121527 && run<= 126460)//LHC10d
484 else if(run>=126461 && run<= 130930)//LHC10e
486 else if(run>=136782 && run <= 139846)//LHC10h
487 type="PbPb2010LHC10h";
488 else if(run>= 143224 && run<= 143237)//2011Feb
489 type="cosmic2011Feb";
490 else if(run>= 150587 && run<= 154930){
491 type="cosmic2011MayJun";
493 TString runstr(Form("%d",run));
494 const TString listrun1kg("154601 154602 154629 154634 154636 154639 154643");
495 if(listrun1kg.Contains(runstr)){
510 void AliTRDdEdxBaseUtils::PrintControl()
513 //print out control variable
515 printf("\nAliTRDdEdxBaseUtils::PrintControl Q0Frac %.1f, Q1Frac %.1f, TimeBinCountCut %.2f, CalibTPCnclsCut %d, IsExBOn %d, IsPadGainOn %d, QScale %.2f\n\n", Q0Frac(), Q1Frac(), TimeBinCountCut(), CalibTPCnclsCut(), IsExBOn(), IsPadGainOn(), QScale());
518 //===================================================================================
519 // dEdx Parameterization
520 //===================================================================================
522 Double_t AliTRDdEdxBaseUtils::Q0MeanTRDpp(const Double_t bg)
525 //truncated Mean Q_{xx} in TRD
531 par[0]= 2.397001e-01;
532 par[1]= 1.334697e+00;
533 par[2]= 6.967470e+00;
534 par[3]= 9.055289e-02;
535 par[4]= 9.388760e+00;
536 par[5]= 9.452742e-04;
537 par[6]= -1.866091e+00;
538 par[7]= 1.403545e+00;
540 ///u/xlu/.task/CommondEdx/myAnaData/Optimum/check11/Merged/LHC10e_plot/Separation/see2.log:hhtype2Q0b2c2 scale 0.428543 at ltbg 0.650000
541 return 0.428543*MeandEdxTR(&bg, par);
544 Double_t AliTRDdEdxBaseUtils::Q0MeanTRDPbPb(const Double_t bg)
547 //truncated Mean Q_{xx} in TRD
554 par[0]= 1.844912e-01;
555 par[1]= 2.509702e+00;
556 par[2]= 6.744031e+00;
557 par[3]= 7.355123e-02;
558 par[4]= 1.166023e+01;
559 par[5]= 1.736186e-04;
560 par[6]= -1.716063e+00;
561 par[7]= 1.611366e+00;
563 ///u/xlu/.task/CommondEdx/myAnaData/Optimum/check11/Merged/LHC10e_plot/Separation/see4.log:hhtype4Q0b2c2 scale 0.460994 at ltbg 0.650000
564 return 0.460994*MeandEdxTR(&bg, par);
567 Double_t AliTRDdEdxBaseUtils::Q1MeanTRDpp(const Double_t bg)
570 //truncated Mean 1/(1/Q)_{xx} in TRD
575 //So 4. Mär 13:30:51 CET 2012
577 par[0]= 2.434646e-01;
578 par[1]= 1.400211e+00;
579 par[2]= 6.937471e+00;
580 par[3]= 7.758118e-02;
581 par[4]= 1.097372e+01;
582 par[5]= 4.297518e-04;
583 par[6]= -1.806266e+00;
584 par[7]= 1.543811e+00;
586 //hhtype2Q1b2c2 scale 0.418629 at ltbg 0.650000
588 return 0.418629*MeandEdxTR(&bg, par);
591 Double_t AliTRDdEdxBaseUtils::Q1MeanTRDPbPb(const Double_t bg)
594 //truncated Mean 1/(1/Q)_{xx} in TRD
599 //So 4. Mär 13:30:52 CET 2012
601 par[0]= 2.193660e-01;
602 par[1]= 2.051864e+00;
603 par[2]= 6.825112e+00;
604 par[3]= 6.151693e-02;
605 par[4]= 1.390343e+01;
606 par[5]= 6.010032e-05;
607 par[6]= -1.676324e+00;
608 par[7]= 1.838873e+00;
610 //hhtype4Q1b2c2 scale 0.457988 at ltbg 0.650000
612 return 0.457988*MeandEdxTR(&bg, par);
615 Double_t AliTRDdEdxBaseUtils::QMeanTPC(const Double_t bg)
622 //Mi 15. Feb 14:48:05 CET 2012
623 //train_2012-02-13_1214.12001, tpcsig
630 return MeandEdx(&bg, par);
633 Double_t AliTRDdEdxBaseUtils::MeandEdxTR(const Double_t * xx, const Double_t * pin)
636 //ALEPH+LOGISTIC parametrization for dEdx+TR, in unit of MIP
640 for(int ii=0; ii<3; ii++){
643 return MeanTR(xx,ptr) + MeandEdx(xx,&(pin[3]));
646 Double_t AliTRDdEdxBaseUtils::MeanTR(const Double_t * xx, const Double_t * par)
649 //ALEPH+LOGISTIC parametrization for dEdx+TR, in unit of MIP
653 const Double_t bg = xx[0];
654 const Double_t gamma = sqrt(1+bg*bg);
656 const Double_t p0 = TMath::Abs(par[1]);
657 const Double_t p1 = TMath::Abs(par[2]);
658 const Double_t p2 = TMath::Abs(par[3]);
660 const Double_t zz = TMath::Log(gamma);
661 const Double_t tryield = p0/( 1 + TMath::Exp(-p1*(zz-p2)) );
663 return par[0]+tryield;
666 Double_t AliTRDdEdxBaseUtils::MeandEdx(const Double_t * xx, const Double_t * par)
669 //ALEPH parametrization for dEdx
673 const Double_t bg = xx[0];
674 const Double_t beta = bg/TMath::Sqrt(1.+ bg*bg);
676 const Double_t p0 = TMath::Abs(par[0]);
677 const Double_t p1 = TMath::Abs(par[1]);
678 const Double_t p2 = TMath::Abs(par[2]);
679 const Double_t p3 = TMath::Abs(par[3]);
680 const Double_t p4 = TMath::Abs(par[4]);
682 const Double_t aa = TMath::Power(beta, p3);
683 const Double_t bb = TMath::Log( p2 + TMath::Power(1./bg, p4) );
685 //printf("test----- %f %f -- %f %f %f %f %f --- %f %f %f\n", bg, beta, p0, p1, p2, p3, p4, p0/aa, aa, bb);
687 return (p1-aa-bb)*p0/aa;
690 Double_t AliTRDdEdxBaseUtils::ToLogx(FFunc func, const Double_t * xx, const Double_t * par)
693 //f(x)-> f(y) with y=log10(x)
695 const Double_t x2[]={TMath::Power(10, xx[0])};
696 return func(x2, par);