* provided "as is" without express or implied warranty. *
**************************************************************************/
+/*
+ Comments to be written here:
+ 1. What do we calibrate.
+ 2. How to interpret results
+ 3. Simple example
+ 4. Analysis using debug streamers.
+
+
+
+ 3.Simple example
+ // To make cosmic scan the user interaction neccessary
+ //
+ .x ~/UliStyle.C
+ gSystem->Load("libANALYSIS");
+ gSystem->Load("libTPCcalib");
+ TFile fcalib("CalibObjects.root");
+ TObjArray * array = (TObjArray*)fcalib.Get("TPCCalib");
+ AliTPCcalibCosmic * cosmic = ( AliTPCcalibCosmic *)array->FindObject("cosmicTPC");
+
+
+
+*/
+
+
+
#include "Riostream.h"
#include "TChain.h"
#include "TTree.h"
#include "TMath.h"
#include "TCanvas.h"
#include "TFile.h"
+#include "TF1.h"
+#include "THnSparse.h"
+#include "AliTPCclusterMI.h"
#include "AliTPCseed.h"
#include "AliESDVertex.h"
#include "AliESDEvent.h"
#include "AliESDfriend.h"
#include "AliESDInputHandler.h"
+#include "AliAnalysisManager.h"
#include "AliTracker.h"
-#include "AliMagFMaps.h"
+#include "AliMagF.h"
+#include "AliTPCCalROC.h"
#include "AliLog.h"
#include "AliTPCcalibCosmic.h"
-
#include "TTreeStream.h"
#include "AliTPCTracklet.h"
+#include "AliESDcosmic.h"
+
ClassImp(AliTPCcalibCosmic)
fClusters(0),
fModules(0),
fHistPt(0),
- fPtResolution(0),
fDeDx(0),
+ fDeDxMIP(0),
+ fMIPvalue(1),
fCutMaxD(5), // maximal distance in rfi ditection
+ fCutMaxDz(40), // maximal distance in z ditection
fCutTheta(0.03), // maximal distan theta
fCutMinDir(-0.99) // direction vector products
{
- AliInfo("Defualt Constructor");
+ AliInfo("Default Constructor");
+ for (Int_t ihis=0; ihis<6;ihis++){
+ fHistoDelta[ihis]=0;
+ fHistoPull[ihis]=0;
+ }
+ for (Int_t ihis=0; ihis<4;ihis++){
+ fHistodEdxMax[ihis] =0;
+ fHistodEdxTot[ihis] =0;
+ }
}
fClusters(0),
fModules(0),
fHistPt(0),
- fPtResolution(0),
fDeDx(0),
- fCutMaxD(5), // maximal distance in rfi ditection
+ fDeDxMIP(0),
+ fMIPvalue(1),
+ fCutMaxD(5), // maximal distance in rfi ditection
+ fCutMaxDz(40), // maximal distance in z ditection
fCutTheta(0.03), // maximal distan theta
fCutMinDir(-0.99) // direction vector products
{
SetName(name);
SetTitle(title);
- AliMagFMaps * field = new AliMagFMaps("dummy1", "dummy2",0,5,0);
- AliTracker::SetFieldMap(field, kTRUE);
- fHistNTracks = new TH1F("ntracks","Number of Tracks per Event",501,-0.5,500.5);
- fClusters = new TH1F("signal","Number of Clusters per track",160,0,160);
- fModules = new TH2F("sector","Acorde hits; z (cm); x(cm)",1200,-1200,1200,600,-1000,1000);
- fHistPt = new TH1F("Pt","Pt distribution",2000,0,50);
- fPtResolution = new TH1F("PtResolution","Pt resolution",100,-50,50);
- fDeDx = new TH2F("DeDx","dEdx",500,0.01,20.,500,0.,500);
+
+ fHistNTracks = new TH1F("ntracks","Number of Tracks per Event; number of tracks per event; number of tracks",501,-0.5,500.5);
+ fClusters = new TH1F("signal","Number of Clusters per track; number of clusters per track n_{cl}; counts",160,0,160);
+ fModules = new TH2F("sector","Acorde hits; z (cm); x(cm)",1200,-650,650,600,-700,700);
+ fHistPt = new TH1F("Pt","Pt distribution; p_{T} (GeV); counts",2000,0,50);
+ fDeDx = new TH2F("DeDx","dEdx; momentum p (GeV); TPC signal (a.u.)",500,0.01,100.,500,2.,1000);
BinLogX(fDeDx);
+ fDeDxMIP = new TH1F("DeDxMIP","MIP region; TPC signal (a.u.);counts ",500,2.,1000);
+ Init();
AliInfo("Non Default Constructor");
+ //
}
AliTPCcalibCosmic::~AliTPCcalibCosmic(){
//
//
//
+ for (Int_t ihis=0; ihis<6;ihis++){
+ delete fHistoDelta[ihis];
+ delete fHistoPull[ihis];
+ }
+ for (Int_t ihis=0; ihis<4;ihis++){
+ delete fHistodEdxTot[ihis];
+ delete fHistodEdxMax[ihis];
+ }
+
+ delete fHistNTracks; // histogram showing number of ESD tracks per event
+ delete fClusters; // histogram showing the number of clusters per track
+ delete fModules; // 2d histogram of tracks which are propagated to the ACORDE scintillator array
+ delete fHistPt; // Pt histogram of reconstructed tracks
+ delete fDeDx; // dEdx spectrum showing the different particle types
+ delete fDeDxMIP; // TPC signal close to the MIP region of muons 0.4 < p < 0.45 GeV
}
+void AliTPCcalibCosmic::Init(){
+ //
+ // init component
+ // Make performance histograms
+ //
+
+ // tracking performance bins
+ // 0 - delta of interest
+ // 1 - min (track0, track1) number of clusters
+ // 2 - R - vertex radius
+ // 3 - P1 - mean z
+ // 4 - P2 - snp(phi) at inner wall of TPC
+ // 5 - P3 - tan(theta) at inner wall of TPC
+ // 6 - P4 - 1/pt mean
+ // 7 - pt - pt mean
+ // 8 - alpha
+
+ Double_t xminTrack[9], xmaxTrack[9];
+ Int_t binsTrack[9];
+ TString axisName[9];
+ //
+ binsTrack[0] =100;
+ axisName[0] ="#Delta";
+ //
+ binsTrack[1] =8;
+ xminTrack[1] =80; xmaxTrack[1]=160;
+ axisName[1] ="N_{cl}";
+ //
+ binsTrack[2] =10;
+ xminTrack[2] =0; xmaxTrack[2]=90; //
+ axisName[2] ="dca_{r} (cm)";
+ //
+ binsTrack[3] =25;
+ xminTrack[3] =-250; xmaxTrack[3]=250; //
+ axisName[3] ="z (cm)";
+ //
+ binsTrack[4] =10;
+ xminTrack[4] =-0.8; xmaxTrack[4]=0.8; //
+ axisName[4] ="sin(#phi)";
+ //
+ binsTrack[5] =10;
+ xminTrack[5] =-1; xmaxTrack[5]=1; //
+ axisName[5] ="tan(#theta)";
+ //
+ binsTrack[6] =10;
+ xminTrack[6] =0; xmaxTrack[6]=2; //
+ axisName[6] ="1/pt (1/GeV)";
+ //
+ binsTrack[7] =40;
+ xminTrack[7] =0.2; xmaxTrack[7]=50; //
+ axisName[7] ="pt (GeV)";
+ //
+ binsTrack[8] =32;
+ xminTrack[8] =0; xmaxTrack[8]=TMath::Pi(); //
+ axisName[8] ="alpha";
+ //
+ // delta y
+ xminTrack[0] =-1; xmaxTrack[0]=1; //
+ fHistoDelta[0] = new THnSparseS("#Delta_{Y} (cm)","#Delta_{Y} (cm)", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[0] = new THnSparseS("#Delta_{Y} (unit)","#Delta_{Y} (unit)", 9, binsTrack,xminTrack, xmaxTrack);
+ //
+ // delta z
+ xminTrack[0] =-1; xmaxTrack[0]=1; //
+ fHistoDelta[1] = new THnSparseS("#Delta_{Z} (cm)","#Delta_{Z} (cm)", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[1] = new THnSparseS("#Delta_{Z} (unit)","#Delta_{Z} (unit)", 9, binsTrack,xminTrack, xmaxTrack);
+ //
+ // delta P2
+ xminTrack[0] =-10; xmaxTrack[0]=10; //
+ fHistoDelta[2] = new THnSparseS("#Delta_{#phi} (mrad)","#Delta_{#phi} (mrad)", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[2] = new THnSparseS("#Delta_{#phi} (unit)","#Delta_{#phi} (unit)", 9, binsTrack,xminTrack, xmaxTrack);
+ //
+ // delta P3
+ xminTrack[0] =-10; xmaxTrack[0]=10; //
+ fHistoDelta[3] = new THnSparseS("#Delta_{#theta} (mrad)","#Delta_{#theta} (mrad)", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[3] = new THnSparseS("#Delta_{#theta} (unit)","#Delta_{#theta} (unit)", 9, binsTrack,xminTrack, xmaxTrack);
+ //
+ // delta P4
+ xminTrack[0] =-0.2; xmaxTrack[0]=0.2; //
+ fHistoDelta[4] = new THnSparseS("#Delta_{1/pt} (1/GeV)","#Delta_{1/pt} (1/GeV)", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[4] = new THnSparseS("#Delta_{1/pt} (unit)","#Delta_{1/pt} (unit)", 9, binsTrack,xminTrack, xmaxTrack);
+
+ //
+ // delta Pt
+ xminTrack[0] =-0.5; xmaxTrack[0]=0.5; //
+ fHistoDelta[5] = new THnSparseS("#Delta_{pt}/p_{t}","#Delta_{pt}/p_{t}", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[5] = new THnSparseS("#Delta_{pt}/p_{t} (unit)","#Delta_{pt}/p_{t} (unit)", 9, binsTrack,xminTrack, xmaxTrack);
+ //
+
+ for (Int_t idedx=0;idedx<4;idedx++){
+ xminTrack[0] =0.5; xmaxTrack[0]=1.5; //
+ binsTrack[1] =40;
+ xminTrack[1] =10; xmaxTrack[1]=160;
+
+ fHistodEdxMax[idedx] = new THnSparseS(Form("dEdx_{MaxUp}/dEdx_{MaxDown}_Pad%d",idedx),
+ Form("dEdx_{MaxUp}/dEdx_{MaxDown}_Pad%d",idedx),
+ 9, binsTrack,xminTrack, xmaxTrack);
+ fHistodEdxTot[idedx] = new THnSparseS(Form("dEdx_{TotUp}/dEdx_{TotDown}_Pad%d",idedx),
+ Form("dEdx_{TotUp}/dEdx_{TotDown}_Pad%d",idedx),
+ 9, binsTrack,xminTrack, xmaxTrack);
+ }
+
+
+
+ for (Int_t ivar=0;ivar<6;ivar++){
+ for (Int_t ivar2=0;ivar2<9;ivar2++){
+ fHistoDelta[ivar]->GetAxis(ivar2)->SetName(axisName[ivar2].Data());
+ fHistoDelta[ivar]->GetAxis(ivar2)->SetTitle(axisName[ivar2].Data());
+ fHistoPull[ivar]->GetAxis(ivar2)->SetName(axisName[ivar2].Data());
+ fHistoPull[ivar]->GetAxis(ivar2)->SetTitle(axisName[ivar2].Data());
+ BinLogX(fHistoDelta[ivar],7);
+ BinLogX(fHistoPull[ivar],7);
+ if (ivar<4){
+ fHistodEdxMax[ivar]->GetAxis(ivar2)->SetName(axisName[ivar2].Data());
+ fHistodEdxMax[ivar]->GetAxis(ivar2)->SetTitle(axisName[ivar2].Data());
+ fHistodEdxTot[ivar]->GetAxis(ivar2)->SetName(axisName[ivar2].Data());
+ fHistodEdxTot[ivar]->GetAxis(ivar2)->SetTitle(axisName[ivar2].Data());
+ BinLogX(fHistodEdxMax[ivar],7);
+ BinLogX(fHistodEdxTot[ivar],7);
+ }
+ }
+ }
+}
+
+
+void AliTPCcalibCosmic::Add(const AliTPCcalibCosmic* cosmic){
+ //
+ //
+ //
+ for (Int_t ivar=0; ivar<6;ivar++){
+ if (fHistoDelta[ivar] && cosmic->fHistoDelta[ivar]){
+ fHistoDelta[ivar]->Add(cosmic->fHistoDelta[ivar]);
+ }
+ if (fHistoPull[ivar] && cosmic->fHistoPull[ivar]){
+ fHistoPull[ivar]->Add(cosmic->fHistoPull[ivar]);
+ }
+ }
+ for (Int_t ivar=0; ivar<4;ivar++){
+ if (fHistodEdxMax[ivar] && cosmic->fHistodEdxMax[ivar]){
+ fHistodEdxMax[ivar]->Add(cosmic->fHistodEdxMax[ivar]);
+ }
+ if (fHistodEdxTot[ivar] && cosmic->fHistodEdxTot[ivar]){
+ fHistodEdxTot[ivar]->Add(cosmic->fHistodEdxTot[ivar]);
+ }
+ }
+}
+
Printf("ERROR: ESDfriend not available");
return;
}
- FindPairs(event);
+
- if (GetDebugLevel()>1) printf("Hallo world: Im here\n");
+ FindPairs(event); // nearly everything takes place in find pairs...
+
+ if (GetDebugLevel()>20) printf("Hallo world: Im here and processing an event\n");
Int_t ntracks=event->GetNumberOfTracks();
fHistNTracks->Fill(ntracks);
- TObjArray tpcSeeds(ntracks);
if (ntracks==0) return;
+ AliESDcosmic cosmicESD;
+ TTreeSRedirector * cstream = GetDebugStreamer();
+ cosmicESD.SetDebugStreamer(cstream);
+ cosmicESD.ProcessEvent(event);
+ if (cstream) cosmicESD.DumpToTree();
+
+
+}
+
+
+void AliTPCcalibCosmic::FillHistoPerformance(AliExternalTrackParam *par0, AliExternalTrackParam *par1, AliExternalTrackParam *inner0, AliExternalTrackParam *inner1, AliTPCseed *seed0, AliTPCseed *seed1){
//
- //track loop
//
- for (Int_t i=0;i<ntracks;++i) {
- AliESDtrack *track = event->GetTrack(i);
- fClusters->Fill(track->GetTPCNcls());
- AliExternalTrackParam * trackIn = new AliExternalTrackParam(*track->GetInnerParam());
-
- AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i);
- TObject *calibObject;
- AliTPCseed *seed = 0;
- for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) {
- if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break;
- }
- if (seed) tpcSeeds.AddAt(seed,i);
- if (seed && track->GetTPCNcls() > 80) fDeDx->Fill(trackIn->GetP(), seed->CookdEdxNorm(0.05,0.45,0));
+ //
+ Int_t kMinCldEdx =20;
+ Int_t ncl0 = seed0->GetNumberOfClusters();
+ Int_t ncl1 = seed1->GetNumberOfClusters();
+
+ const Double_t kpullCut = 10;
+ Double_t x[9];
+ Double_t xyz0[3];
+ Double_t xyz1[3];
+ par0->GetXYZ(xyz0);
+ par1->GetXYZ(xyz1);
+ Double_t radius0 = TMath::Sqrt(xyz0[0]*xyz0[0]+xyz0[1]*xyz0[1]);
+ Double_t radius1 = TMath::Sqrt(xyz1[0]*xyz1[0]+xyz1[1]*xyz1[1]);
+ inner0->GetXYZ(xyz0);
+ Double_t alpha = TMath::ATan2(xyz0[1],xyz0[0]);
+ // bin parameters
+ x[1] = TMath::Min(ncl0,ncl1);
+ x[2] = (radius0+radius1)*0.5;
+ x[3] = (inner0->GetZ()+inner1->GetZ())*0.5;
+ x[4] = (inner0->GetSnp()-inner1->GetSnp())*0.5;
+ x[5] = (inner0->GetTgl()-inner1->GetTgl())*0.5;
+ x[6] = (1/par0->Pt()+1/par1->Pt())*0.5;
+ x[7] = (par0->Pt()+par1->Pt())*0.5;
+ x[8] = alpha;
+ // deltas
+ Double_t delta[6];
+ Double_t sigma[6];
+ delta[0] = (par0->GetY()+par1->GetY());
+ delta[1] = (par0->GetZ()-par1->GetZ());
+ delta[2] = (par0->GetAlpha()-par1->GetAlpha()-TMath::Pi());
+ delta[3] = (par0->GetTgl()+par1->GetTgl());
+ delta[4] = (par0->GetParameter()[4]+par1->GetParameter()[4]);
+ delta[5] = (par0->Pt()-par1->Pt())/((par0->Pt()+par1->Pt())*0.5);
+ //
+ sigma[0] = TMath::Sqrt(par0->GetSigmaY2()+par1->GetSigmaY2());
+ sigma[1] = TMath::Sqrt(par0->GetSigmaZ2()+par1->GetSigmaZ2());
+ sigma[2] = TMath::Sqrt(par0->GetSigmaSnp2()+par1->GetSigmaSnp2());
+ sigma[3] = TMath::Sqrt(par0->GetSigmaTgl2()+par1->GetSigmaTgl2());
+ sigma[4] = TMath::Sqrt(par0->GetSigma1Pt2()+par1->GetSigma1Pt2());
+ sigma[5] = sigma[4]*((par0->Pt()+par1->Pt())*0.5);
+ //
+ Bool_t isOK = kTRUE;
+ for (Int_t ivar=0;ivar<6;ivar++){
+ if (sigma[ivar]==0) isOK=kFALSE;
+ x[0]= delta[ivar]/sigma[ivar];
+ if (TMath::Abs(x[0])>kpullCut) isOK = kFALSE;
}
- if (ntracks<2) return;
-
+ //
- // dE/dx,pt and ACORDE study --> studies which need the pair selection
- for (Int_t i=0;i<ntracks;++i) {
- AliESDtrack *track1 = event->GetTrack(i);
-
- Double_t d1[3];
- track1->GetDirection(d1);
-
- for (Int_t j=i+1;j<ntracks;++j) {
- AliESDtrack *track2 = event->GetTrack(j);
- Double_t d2[3];
- track2->GetDirection(d2);
-
- if (d1[0]*d2[0] + d1[1]*d2[1] + d1[2]*d2[2] < -0.999) {
-
- /*___________________________________ Pt resolution ________________________________________*/
- if (track1->Pt() != 0 && track1->GetTPCNcls() > 80 && track2->GetTPCNcls() > 80) {
- Double_t res = (track1->Pt() - track2->Pt());
- res = res/(2*(track1->Pt() + track2->Pt()));
- fPtResolution->Fill(100*res);
- }
-
- /*_______________________________ Propagation to ACORDE ___________________________________*/
- const Double_t AcordePlane = 850.; //distance of the central Acorde detectors to the beam line at y =0
- const Double_t roof = 210.5; // distance from x =0 to end of magnet roof
-
- if (d1[1] > 0 && d2[1] < 0 && track1->GetTPCNcls() > 50) {
- Double_t r[3];
- track1->GetXYZ(r);
- Double_t x,z;
- z = r[2] + (d1[2]/d1[1])*(AcordePlane - r[1]);
- x = r[0] + (d1[0]/d1[1])*(AcordePlane - r[1]);
-
- if (x > roof) {
- x = x - (x-roof)/(1 + TMath::Abs(TMath::Tan(track1->Phi())));
- z = z - TMath::Abs(TMath::Tan(track1->Phi()))/TMath::Abs(TMath::Tan(track1->Theta()))*(x-roof)/(1 + TMath::Abs(TMath::Tan(track1->Phi())));
- }
- if (x < -roof) {
- x = x - (x+roof)/(1 + TMath::Abs(TMath::Tan(track1->Phi())));
- z = z - TMath::Abs(TMath::Tan(track1->Phi()))/TMath::Abs(TMath::Tan(track1->Theta()))*(x+roof)/(1 + TMath::Abs(TMath::Tan(track1->Phi())));
- }
-
- fModules->Fill(z, x);
- }
-
- if (d2[1] > 0 && d1[1] < 0 && track2->GetTPCNcls() > 50) {
- Double_t r[3];
- track2->GetXYZ(r);
- Double_t x,z;
- z = r[2] + (d2[2]/d2[1])*(AcordePlane - r[1]);
- x = r[0] + (d2[0]/d2[1])*(AcordePlane - r[1]);
-
- if (x > roof) {
- x = x - (x-roof)/(1 + TMath::Abs(TMath::Tan(track2->Phi())));
- z = z - TMath::Abs(TMath::Tan(track2->Phi()))/TMath::Abs(TMath::Tan(track2->Theta()))*(x-roof)/(1 + TMath::Abs(TMath::Tan(track2->Phi())));
- }
- if (x < -roof) {
- x = x - (x+roof)/(1 + TMath::Abs(TMath::Tan(track2->Phi())));
- z = z - TMath::Abs(TMath::Tan(track2->Phi()))/TMath::Abs(TMath::Tan(track2->Theta()))*(x+roof)/(1 + TMath::Abs(TMath::Tan(track2->Phi())));
- }
-
- fModules->Fill(z, x);
- }
-
- // AliExternalTrackParam * trackOut = new AliExternalTrackParam(*track2->GetOuterParam());
-// AliTracker::PropagateTrackTo(trackOut,850.,105.658,30);
-// delete trackOut;
-
+ if (isOK) for (Int_t ivar=0;ivar<6;ivar++){
+ x[0]= delta[ivar]/TMath::Sqrt(2);
+ if (ivar==2 || ivar ==3) x[0]*=1000;
+ fHistoDelta[ivar]->Fill(x);
+ if (sigma[ivar]>0){
+ x[0]= delta[ivar]/sigma[ivar];
+ fHistoPull[ivar]->Fill(x);
+ }
+ }
+ //
+ // Fill dedx performance
+ //
+ for (Int_t ipad=0; ipad<4;ipad++){
+ //
+ //
+ //
+ Int_t row0=0;
+ Int_t row1=160;
+ if (ipad==0) row1=63;
+ if (ipad==1) {row0=63; row1=63+64;}
+ if (ipad==2) {row0=128;}
+ Int_t nclUp = TMath::Nint(seed0->CookdEdxAnalytical(0.01,0.7,0,row0,row1,2));
+ Int_t nclDown = TMath::Nint(seed1->CookdEdxAnalytical(0.01,0.7,0,row0,row1,2));
+ Int_t minCl = TMath::Min(nclUp,nclDown);
+ if (minCl<kMinCldEdx) continue;
+ x[1] = minCl;
+ //
+ Float_t dEdxTotUp = seed0->CookdEdxAnalytical(0.01,0.7,0,row0,row1);
+ Float_t dEdxTotDown = seed1->CookdEdxAnalytical(0.01,0.7,0,row0,row1);
+ Float_t dEdxMaxUp = seed0->CookdEdxAnalytical(0.01,0.7,1,row0,row1);
+ Float_t dEdxMaxDown = seed1->CookdEdxAnalytical(0.01,0.7,1,row0,row1);
+ //
+ if (dEdxTotDown<=0) continue;
+ if (dEdxMaxDown<=0) continue;
+ x[0]=dEdxTotUp/dEdxTotDown;
+ fHistodEdxTot[ipad]->Fill(x);
+ x[0]=dEdxMaxUp/dEdxMaxDown;
+ fHistodEdxMax[ipad]->Fill(x);
+ }
-
- break;
- }
- }
- }
-
-
-
-}
+}
+
+
+
+void AliTPCcalibCosmic::Analyze() {
+
+ fMIPvalue = CalculateMIPvalue(fDeDxMIP);
+
+ return;
+
+}
+
+
void AliTPCcalibCosmic::FindPairs(AliESDEvent *event) {
//
// Track0 is choosen in upper TPC part
// Track1 is choosen in lower TPC part
//
- if (GetDebugLevel()>1) printf("Hallo world: Im here\n");
+ if (GetDebugLevel()>20) printf("Hallo world: Im here\n");
AliESDfriend *ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
Int_t ntracks=event->GetNumberOfTracks();
TObjArray tpcSeeds(ntracks);
//
//track loop
//
- for (Int_t i=0;i<ntracks;++i) {
- AliESDtrack *track = event->GetTrack(i);
- fClusters->Fill(track->GetTPCNcls());
- AliExternalTrackParam * trackIn = new AliExternalTrackParam(*track->GetInnerParam());
-
+ for (Int_t i=0;i<ntracks;++i) {
+ AliESDtrack *track = event->GetTrack(i);
+ fClusters->Fill(track->GetTPCNcls());
+
+ const AliExternalTrackParam * trackIn = track->GetInnerParam();
+ const AliExternalTrackParam * trackOut = track->GetOuterParam();
+ if (!trackIn) continue;
+ if (!trackOut) continue;
+ if (ntracks>4 && TMath::Abs(trackIn->GetTgl())<0.0015) continue; // filter laser
+
+
AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i);
TObject *calibObject;
AliTPCseed *seed = 0;
if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break;
}
if (seed) tpcSeeds.AddAt(seed,i);
- if (seed && track->GetTPCNcls() > 80) fDeDx->Fill(trackIn->GetP(), seed->CookdEdxNorm(0.05,0.45,0));
+
+ Double_t meanP = 0.5*(trackIn->GetP() + trackOut->GetP());
+ if (seed && track->GetTPCNcls() > 80 + 60/(1+TMath::Exp(-meanP+5))) {
+ fDeDx->Fill(meanP, seed->CookdEdxNorm(0.0,0.45,0,0,159));
+ //
+ if (meanP > 0.4 && meanP < 0.45) fDeDxMIP->Fill(seed->CookdEdxNorm(0.0,0.45,0,0,159));
+ //
+ if (GetDebugLevel()>0&&meanP>0.2&&seed->CookdEdxNorm(0.0,0.45,0,0,159)>300) {
+ TFile *curfile = AliAnalysisManager::GetAnalysisManager()->GetTree()->GetCurrentFile();
+ if (curfile) printf(">>> p+ in file: %s \t event: %i \t Number of ESD tracks: %i \n", curfile->GetName(), (int)event->GetEventNumberInFile(), (int)ntracks);
+ if (track->GetOuterParam()->GetAlpha()<0) cout << " Polartiy: " << track->GetSign() << endl;
+ }
+
+ }
+
}
+
if (ntracks<2) return;
//
// Find pairs
if (!track0) continue;
if (!track0->GetOuterParam()) continue;
if (track0->GetOuterParam()->GetAlpha()<0) continue;
- Double_t d1[3];
- track0->GetDirection(d1);
+ Double_t dir0[3];
+ track0->GetDirection(dir0);
for (Int_t j=0;j<ntracks;++j) {
if (i==j) continue;
AliESDtrack *track1 = event->GetTrack(j);
if (!track1->GetOuterParam()) continue;
if (track1->GetOuterParam()->GetAlpha()>0) continue;
//
- Double_t d2[3];
- track1->GetDirection(d2);
- printf("My stream level=%d\n",fStreamLevel);
+ Double_t dir1[3];
+ track1->GetDirection(dir1);
+
AliTPCseed * seed0 = (AliTPCseed*) tpcSeeds.At(i);
AliTPCseed * seed1 = (AliTPCseed*) tpcSeeds.At(j);
if (! seed0) continue;
if (! seed1) continue;
- Float_t dedx0 = seed0->CookdEdxNorm(0.05,0.55,0);
- Float_t dedx1 = seed1->CookdEdxNorm(0.05,0.55,0);
- Float_t dir = (d1[0]*d2[0] + d1[1]*d2[1] + d1[2]*d2[2]);
+ Float_t dedx0 = seed0->CookdEdxNorm(0.05,0.55,0,0,159);
+ Float_t dedx1 = seed1->CookdEdxNorm(0.05,0.55,0,0,159);
+ //
+ Float_t dedx0I = seed0->CookdEdxNorm(0.05,0.55,0,0,63);
+ Float_t dedx1I = seed1->CookdEdxNorm(0.05,0.55,0,0,63);
+ //
+ Float_t dedx0O = seed0->CookdEdxNorm(0.05,0.55,0,64,159);
+ Float_t dedx1O = seed1->CookdEdxNorm(0.05,0.55,0,64,159);
+ //
+ Float_t dir = (dir0[0]*dir1[0] + dir0[1]*dir1[1] + dir0[2]*dir1[2]);
Float_t d0 = track0->GetLinearD(0,0);
Float_t d1 = track1->GetLinearD(0,0);
//
//
param0.GetDZ(0,0,0,bz,dvertex0);
param1.GetDZ(0,0,0,bz,dvertex1);
+ if (TMath::Abs(param0.GetZ()-param1.GetZ())>fCutMaxDz) continue;
//
Double_t xyz0[3];//,pxyz0[3];
Double_t xyz1[3];//,pxyz1[3];
param0.GetXYZ(xyz0);
param1.GetXYZ(xyz1);
Bool_t isPair = IsPair(¶m0,¶m1);
+ //
+ if (isPair) FillAcordeHist(track0);
+ //
+ // combined track params
+ //
+ AliExternalTrackParam *par0U=MakeCombinedTrack(¶m0,¶m1);
+ AliExternalTrackParam *par1U=MakeCombinedTrack(¶m1,¶m0);
+
+
//
if (fStreamLevel>0){
TTreeSRedirector * cstream = GetDebugStreamer();
- printf("My stream=%p\n",(void*)cstream);
+ //printf("My stream=%p\n",(void*)cstream);
+ AliExternalTrackParam *ip0 = (AliExternalTrackParam *)track0->GetInnerParam();
+ AliExternalTrackParam *ip1 = (AliExternalTrackParam *)track1->GetInnerParam();
+ AliExternalTrackParam *op0 = (AliExternalTrackParam *)track0->GetOuterParam();
+ AliExternalTrackParam *op1 = (AliExternalTrackParam *)track1->GetOuterParam();
+ Bool_t isCrossI = ip0->GetZ()*ip1->GetZ()<0;
+ Bool_t isCrossO = op0->GetZ()*op1->GetZ()<0;
+ Double_t alpha0 = TMath::ATan2(dir0[1],dir0[0]);
+ Double_t alpha1 = TMath::ATan2(dir1[1],dir1[0]);
+ //
+ //
+ //
+ FillHistoPerformance(¶m0, ¶m1, ip0, ip1, seed0, seed1);
+
if (cstream) {
(*cstream) << "Track0" <<
+ "run="<<fRun<< // run number
+ "event="<<fEvent<< // event number
+ "time="<<fTime<< // time stamp of event
+ "trigger="<<fTrigger<< // trigger
+ "triggerClass="<<&fTriggerClass<< // trigger
+ "mag="<<fMagF<< // magnetic field
"dir="<<dir<< // direction
- "OK="<<isPair<< // will be accepted
+ "OK="<<isPair<< // will be accepted
"b0="<<b0<< // propagate status
"b1="<<b1<< // propagate status
+ "crossI="<<isCrossI<< // cross inner
+ "crossO="<<isCrossO<< // cross outer
+ //
"Orig0.=" << track0 << // original track 0
"Orig1.=" << track1 << // original track 1
"Tr0.="<<¶m0<< // track propagated to the DCA 0,0
"Tr1.="<<¶m1<< // track propagated to the DCA 0,0
+ "Ip0.="<<ip0<< // inner param - upper
+ "Ip1.="<<ip1<< // inner param - lower
+ "Op0.="<<op0<< // outer param - upper
+ "Op1.="<<op1<< // outer param - lower
+ "Up0.="<<par0U<< // combined track 0
+ "Up1.="<<par1U<< // combined track 1
+ //
"v00="<<dvertex0[0]<< // distance using kalman
"v01="<<dvertex0[1]<< //
"v10="<<dvertex1[0]<< //
"d0="<<d0<< // linear distance to 0,0
"d1="<<d1<< // linear distance to 0,0
//
- "x00="<<xyz0[0]<<
+ //
+ //
+ "x00="<<xyz0[0]<< // global position close to vertex
"x01="<<xyz0[1]<<
"x02="<<xyz0[2]<<
//
- "x10="<<xyz1[0]<<
+ "x10="<<xyz1[0]<< // global position close to vertex
"x11="<<xyz1[1]<<
"x12="<<xyz1[2]<<
//
- "Seed0.=" << track0 << // original seed 0
- "Seed1.=" << track1 << // original seed 1
- "dedx0="<<dedx0<< // dedx0
- "dedx1="<<dedx1<< // dedx1
+ "alpha0="<<alpha0<<
+ "alpha1="<<alpha1<<
+ "dir00="<<dir0[0]<< // direction upper
+ "dir01="<<dir0[1]<<
+ "dir02="<<dir0[2]<<
+ //
+ "dir10="<<dir1[0]<< // direction lower
+ "dir11="<<dir1[1]<<
+ "dir12="<<dir1[2]<<
+ //
+ //
+ "Seed0.=" << seed0 << // original seed 0
+ "Seed1.=" << seed1 << // original seed 1
+ //
+ "dedx0="<<dedx0<< // dedx0 - all
+ "dedx1="<<dedx1<< // dedx1 - all
+ //
+ "dedx0I="<<dedx0I<< // dedx0 - inner ROC
+ "dedx1I="<<dedx1I<< // dedx1 - inner ROC
+ //
+ "dedx0O="<<dedx0O<< // dedx0 - outer ROC
+ "dedx1O="<<dedx1O<< // dedx1 - outer ROC
"\n";
}
- }
+ }
+ delete par0U;
+ delete par1U;
}
}
}
-Long64_t AliTPCcalibCosmic::Merge(TCollection */*li*/) {
+
+
+void AliTPCcalibCosmic::FillAcordeHist(AliESDtrack *upperTrack) {
+
+ // Pt cut to select straight tracks which can be easily propagated to ACORDE which is outside the magnetic field
+ if (upperTrack->Pt() < 10 || upperTrack->GetTPCNcls() < 80) return;
+
+ const Double_t AcordePlane = 850.; // distance of the central Acorde detectors to the beam line at y =0
+ const Double_t roof = 210.5; // distance from x =0 to end of magnet roof
+
+ Double_t r[3];
+ upperTrack->GetXYZ(r);
+ Double_t d[3];
+ upperTrack->GetDirection(d);
+ Double_t x,z;
+ z = r[2] + (d[2]/d[1])*(AcordePlane - r[1]);
+ x = r[0] + (d[0]/d[1])*(AcordePlane - r[1]);
+ if (x > roof) {
+ x = r[0] + (d[0]/(d[0]+d[1]))*(AcordePlane+roof-r[0]-r[1]);
+ z = r[2] + (d[2]/(d[0]+d[1]))*(AcordePlane+roof-r[0]-r[1]);
+ }
+ if (x < -roof) {
+ x = r[0] + (d[0]/(d[1]-d[0]))*(AcordePlane+roof+r[0]-r[1]);
+ z = r[2] + (d[2]/(d[1]-d[0]))*(AcordePlane+roof+r[0]-r[1]);
+ }
+
+ fModules->Fill(z, x);
+
}
+
+
+Long64_t AliTPCcalibCosmic::Merge(TCollection *li) {
+
+ TIterator* iter = li->MakeIterator();
+ AliTPCcalibCosmic* cal = 0;
+
+ while ((cal = (AliTPCcalibCosmic*)iter->Next())) {
+ if (!cal->InheritsFrom(AliTPCcalibCosmic::Class())) {
+ //Error("Merge","Attempt to add object of class %s to a %s", cal->ClassName(), this->ClassName());
+ return -1;
+ }
+
+ fHistNTracks->Add(cal->GetHistNTracks());
+ fClusters->Add(cal-> GetHistClusters());
+ fModules->Add(cal->GetHistAcorde());
+ fHistPt->Add(cal->GetHistPt());
+ fDeDx->Add(cal->GetHistDeDx());
+ fDeDxMIP->Add(cal->GetHistMIP());
+ Add(cal);
+ }
+ return 0;
+
+}
+
+
Bool_t AliTPCcalibCosmic::IsPair(AliExternalTrackParam *tr0, AliExternalTrackParam *tr1){
//
//
const Double_t *p0 = tr0->GetParameter();
const Double_t *p1 = tr1->GetParameter();
if (TMath::Abs(p0[3]+p1[3])>fCutTheta) return kFALSE;
+ if (TMath::Abs(p0[1]-p1[1])>fCutMaxDz) return kFALSE;
if (TMath::Abs(p0[0]+p1[0])>fCutMaxD) return kFALSE;
+
Double_t d0[3], d1[3];
tr0->GetDirection(d0);
tr1->GetDirection(d1);
//
return kTRUE;
}
+
+Double_t AliTPCcalibCosmic::CalculateMIPvalue(TH1F * hist) {
+
+ TF1 * funcDoubleGaus = new TF1("funcDoubleGaus", "gaus(0)+gaus(3)",0,1000);
+ funcDoubleGaus->SetParameters(hist->GetEntries()*0.75,hist->GetMean()/1.3,hist->GetMean()*0.10,
+ hist->GetEntries()*0.25,hist->GetMean()*1.3,hist->GetMean()*0.10);
+ hist->Fit(funcDoubleGaus);
+ Double_t MIPvalue = TMath::Min(funcDoubleGaus->GetParameter(1),funcDoubleGaus->GetParameter(4));
+
+ delete funcDoubleGaus;
+
+ return MIPvalue;
+
+}
+
+
+
+
+void AliTPCcalibCosmic::CalculateBetheParams(TH2F */*hist*/, Double_t * /*initialParam*/) {
+ //
+ // Not implemented yet
+ //
+ return;
+
+}
+
+
+void AliTPCcalibCosmic::BinLogX(THnSparse *h, Int_t axisDim) {
+
+ // Method for the correct logarithmic binning of histograms
+
+ TAxis *axis = h->GetAxis(axisDim);
+ int bins = axis->GetNbins();
+
+ Double_t from = axis->GetXmin();
+ Double_t to = axis->GetXmax();
+ Double_t *new_bins = new Double_t[bins + 1];
+
+ new_bins[0] = from;
+ Double_t factor = pow(to/from, 1./bins);
+
+ for (int i = 1; i <= bins; i++) {
+ new_bins[i] = factor * new_bins[i-1];
+ }
+ axis->Set(bins, new_bins);
+ delete new_bins;
+
+}
+
void AliTPCcalibCosmic::BinLogX(TH1 *h) {
}
+AliExternalTrackParam *AliTPCcalibCosmic::MakeTrack(const AliExternalTrackParam *track0, const AliExternalTrackParam *track1){
+ //
+ //
+ //
+ AliExternalTrackParam *par1R= new AliExternalTrackParam(*track1);
+ par1R->Rotate(track0->GetAlpha());
+ par1R->PropagateTo(track0->GetX(),AliTracker::GetBz());
+ //
+ //
+ Double_t * param = (Double_t*)par1R->GetParameter();
+ Double_t * covar = (Double_t*)par1R->GetCovariance();
+
+ param[0]*=1; //OK
+ param[1]*=1; //OK
+ param[2]*=1; //?
+ param[3]*=-1; //OK
+ param[4]*=-1; //OK
+ //
+ covar[6] *=-1.; covar[7] *=-1.; covar[8] *=-1.;
+ //covar[10]*=-1.; covar[11]*=-1.; covar[12]*=-1.;
+ covar[13]*=-1.;
+ return par1R;
+}
-/*
+AliExternalTrackParam *AliTPCcalibCosmic::MakeCombinedTrack(const AliExternalTrackParam *track0, const AliExternalTrackParam *track1){
+ //
+ // Make combined track
+ //
+ //
+ AliExternalTrackParam * par1T = MakeTrack(track0,track1);
+ AliExternalTrackParam * par0U = new AliExternalTrackParam(*track0);
+ //
+ UpdateTrack(*par0U,*par1T);
+ delete par1T;
+ return par0U;
+}
-void AliTPCcalibCosmic::dEdxCorrection(){
- TCut cutT("cutT","abs(Tr1.fP[3]+Tr0.fP[3])<0.03");
- TCut cutD("cutD","abs(Tr0.fP[0]+Tr1.fP[0])<5");
- TCut cutPt("cutPt","abs(Tr1.fP[4]+Tr0.fP[4])<0.2&&abs(Tr0.fP[4])+abs(Tr1.fP[4])<10");
- TCut cutN("cutN","min(Orig0.fTPCncls,Orig1.fTPCncls)>70");
- TCut cutA=cutT+cutD+cutPt+cutN;
+void AliTPCcalibCosmic::UpdateTrack(AliExternalTrackParam &track1, const AliExternalTrackParam &track2){
+ //
+ // Update track 1 with track 2
+ //
+ //
+ //
+ TMatrixD vecXk(5,1); // X vector
+ TMatrixD covXk(5,5); // X covariance
+ TMatrixD matHk(5,5); // vector to mesurement
+ TMatrixD measR(5,5); // measurement error
+ TMatrixD vecZk(5,1); // measurement
+ //
+ TMatrixD vecYk(5,1); // Innovation or measurement residual
+ TMatrixD matHkT(5,5);
+ TMatrixD matSk(5,5); // Innovation (or residual) covariance
+ TMatrixD matKk(5,5); // Optimal Kalman gain
+ TMatrixD mat1(5,5); // update covariance matrix
+ TMatrixD covXk2(5,5); //
+ TMatrixD covOut(5,5);
+ //
+ Double_t *param1=(Double_t*) track1.GetParameter();
+ Double_t *covar1=(Double_t*) track1.GetCovariance();
+ Double_t *param2=(Double_t*) track2.GetParameter();
+ Double_t *covar2=(Double_t*) track2.GetCovariance();
+ //
+ // copy data to the matrix
+ for (Int_t ipar=0; ipar<5; ipar++){
+ for (Int_t jpar=0; jpar<5; jpar++){
+ covXk(ipar,jpar) = covar1[track1.GetIndex(ipar, jpar)];
+ measR(ipar,jpar) = covar2[track2.GetIndex(ipar, jpar)];
+ matHk(ipar,jpar)=0;
+ mat1(ipar,jpar)=0;
+ }
+ vecXk(ipar,0) = param1[ipar];
+ vecZk(ipar,0) = param2[ipar];
+ matHk(ipar,ipar)=1;
+ mat1(ipar,ipar)=0;
+ }
+ //
+ //
+ //
+ //
+ //
+ vecYk = vecZk-matHk*vecXk; // Innovation or measurement residual
+ matHkT=matHk.T(); matHk.T();
+ matSk = (matHk*(covXk*matHkT))+measR; // Innovation (or residual) covariance
+ matSk.Invert();
+ matKk = (covXk*matHkT)*matSk; // Optimal Kalman gain
+ vecXk += matKk*vecYk; // updated vector
+ covXk2 = (mat1-(matKk*matHk));
+ covOut = covXk2*covXk;
+ //
+ //
+ //
+ // copy from matrix to parameters
+ if (0) {
+ vecXk.Print();
+ vecZk.Print();
+ //
+ measR.Print();
+ covXk.Print();
+ covOut.Print();
+ //
+ track1.Print();
+ track2.Print();
+ }
+ for (Int_t ipar=0; ipar<5; ipar++){
+ param1[ipar]= vecXk(ipar,0) ;
+ for (Int_t jpar=0; jpar<5; jpar++){
+ covar1[track1.GetIndex(ipar, jpar)]=covOut(ipar,jpar);
+ }
+ }
+}
- .x ~/rootlogon.C
- gSystem->Load("libSTAT.so");
- Double_t chi2=0;
- Int_t npoints=0;
- TVectorD fitParam;
- TMatrixD covMatrix;
-
- chain->Draw("Tr0.fP[4]+Tr1.fP[4]","OK"+cutA);
-
- TString strFit;
- strFit+="(Tr0.fP[1]/250)++";
- strFit+="(Tr0.fP[1]/250)^2++";
- strFit+="(Tr0.fP[3])++";
- strFit+="(Tr0.fP[3])^2++";
-
- TString * ptParam = TStatToolkit::FitPlane(chain,"Tr0.fP[4]+Tr1.fP[4]", strFit.Data(),cutA, chi2,npoints,fitParam,covMatrix)
-
-strFit+="(Tr0.fP[1]/250)++";
-strFit+="(Tr0.fP[1]/250)^2++";
-strFit+="(Tr0.fP[3])++";
-strFit+="(Tr0.fP[3])^2++";
-strFit+="(Tr0.fP[1]/250)^2*Tr0.fP[3]++";
-strFit+="(Tr0.fP[1]/250)^2*Tr0.fP[3]^2++";
-//
-
-strFit+="sign(Tr0.fP[1])++"
-strFit+="sign(Tr0.fP[1])*(1-abs(Tr0.fP[1]/250))"
-
-TString * thetaParam = TStatToolkit::FitPlane(chain,"Tr0.fP[3]+Tr1.fP[3]", strFit.Data(),cutA, chi2,npoints,fitParam,covMatrix)
-*/
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff