+
+
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
* 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
+ //
+
+ */
+
+
+
#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 "TDatabasePDG.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 "AliTPCParam.h"
#include "AliLog.h"
#include "AliTPCcalibCosmic.h"
-
#include "TTreeStream.h"
#include "AliTPCTracklet.h"
-
+//#include "AliESDcosmic.h"
+#include "AliRecoParam.h"
+#include "AliMultiplicity.h"
+#include "AliTPCTransform.h"
+#include "AliTPCcalibDB.h"
+#include "AliTPCseed.h"
+#include "AliGRPObject.h"
+#include "AliTPCCorrection.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
+ fCutMinDir(-0.99), // direction vector products
+ fCosmicTree(0) // tree with cosmic data
{
- AliInfo("Defualt Constructor");
+ //
+ // CONSTRUCTOR - SEE COMMENTS ABOVE
+ //
+ 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
+ fCutMinDir(-0.99), // direction vector products
+ fCosmicTree(0) // tree with cosmic data
{
+ //
+ // cONSTRUCTOR - SEE COMENTS ABOVE
+ //
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(){
//
+ // destructor
+ //
+ 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
+ // 9 - is corss indicator
+ Int_t ndim=10;
+ Double_t xminTrack[10], xmaxTrack[10];
+ Int_t binsTrack[10];
+ TString axisName[10];
+ //
+ 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] =40;
+ xminTrack[6] =-2; xmaxTrack[6]=2; //
+ axisName[6] ="1/pt (1/GeV)";
//
+ binsTrack[7] =50;
+ xminTrack[7] =1; xmaxTrack[7]=1000; //
+ axisName[7] ="pt (GeV)";
+ //
+ binsTrack[8] =18;
+ xminTrack[8] =0; xmaxTrack[8]=TMath::Pi(); //
+ axisName[8] ="alpha";
+ //
+ binsTrack[9] =3;
+ xminTrack[9] =-0.1; xmaxTrack[9]=2.1; //
+ axisName[9] ="cross";
+ //
+ // delta y
+ xminTrack[0] =-1; xmaxTrack[0]=1; //
+ fHistoDelta[0] = new THnSparseS("#Delta_{Y} (cm)","#Delta_{Y} (cm)", ndim, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[0] = new THnSparseS("#Delta_{Y} (unit)","#Delta_{Y} (unit)", ndim, binsTrack,xminTrack, xmaxTrack);
+ //
+ // delta z
+ xminTrack[0] =-1; xmaxTrack[0]=1; //
+ fHistoDelta[1] = new THnSparseS("#Delta_{Z} (cm)","#Delta_{Z} (cm)", ndim, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[1] = new THnSparseS("#Delta_{Z} (unit)","#Delta_{Z} (unit)", ndim, binsTrack,xminTrack, xmaxTrack);
+ //
+ // delta P2
+ xminTrack[0] =-10; xmaxTrack[0]=10; //
+ fHistoDelta[2] = new THnSparseS("#Delta_{#phi} (mrad)","#Delta_{#phi} (mrad)", ndim, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[2] = new THnSparseS("#Delta_{#phi} (unit)","#Delta_{#phi} (unit)", ndim, binsTrack,xminTrack, xmaxTrack);
+ //
+ // delta P3
+ xminTrack[0] =-10; xmaxTrack[0]=10; //
+ fHistoDelta[3] = new THnSparseS("#Delta_{#theta} (mrad)","#Delta_{#theta} (mrad)", ndim, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[3] = new THnSparseS("#Delta_{#theta} (unit)","#Delta_{#theta} (unit)", ndim, 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)", ndim, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[4] = new THnSparseS("#Delta_{1/pt} (unit)","#Delta_{1/pt} (unit)", ndim, 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}", ndim, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0] =-5; xmaxTrack[0]=5; //
+ fHistoPull[5] = new THnSparseS("#Delta_{pt}/p_{t} (unit)","#Delta_{pt}/p_{t} (unit)", ndim, 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),
+ ndim, binsTrack,xminTrack, xmaxTrack);
+ fHistodEdxTot[idedx] = new THnSparseS(Form("dEdx_{TotUp}/dEdx_{TotDown}_Pad%d",idedx),
+ Form("dEdx_{TotUp}/dEdx_{TotDown}_Pad%d",idedx),
+ ndim, binsTrack,xminTrack, xmaxTrack);
+ }
+
+
+
+ for (Int_t ivar=0;ivar<6;ivar++){
+ for (Int_t ivar2=0;ivar2<ndim;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){
+ //
+ // merge the content of the cosmic componentnts
+ //
+ 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]);
+ }
+ }
+ if (cosmic->fCosmicTree){
+ if (!fCosmicTree) {
+ fCosmicTree = new TTree("pairs","pairs");
+ fCosmicTree->SetDirectory(0);
+ }
+ AliTPCcalibCosmic::AddTree(fCosmicTree,cosmic->fCosmicTree);
+ }
+}
+
void AliTPCcalibCosmic::Process(AliESDEvent *event) {
//
- //
+ // Process of the ESD event - fill calibration components
//
if (!event) {
Printf("ERROR: ESD not available");
return;
}
- AliESDfriend *
ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
- if (!ESDfriend) {
- Printf("ERROR: ESDfriend not available");
+ AliESDfriend *
esdFriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
+ if (!esdFriend) {
+ Printf("ERROR: esdFriend not available");
return;
}
- FindPairs(event);
+
+ //
+ //Int_t isOK=kTRUE;
+ // COSMIC not signed properly
+ // UInt_t specie = event->GetEventSpecie(); // select only cosmic events
+ //if (specie==AliRecoParam::kCosmic || specie==AliRecoParam::kCalib) {
+ // isOK = kTRUE;
+ //}
+ //if (!isOK) return;
+ // Work around
+ FindCosmicPairs(event);
+ const AliMultiplicity *multiplicity = event->GetMultiplicity();
+ Int_t ntracklets = multiplicity->GetNumberOfTracklets();
+ if (ntracklets>6) return; // filter out "normal" event with high multiplicity
+ const TString &trigger = event->GetFiredTriggerClasses();
+ if (trigger.Contains("C0OB0")==0) return;
+
- 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;
+
+}
+
+
+void AliTPCcalibCosmic::FillHistoPerformance(const AliExternalTrackParam *par0, const AliExternalTrackParam *par1, const AliExternalTrackParam *inner0, const AliExternalTrackParam */*inner1*/, AliTPCseed *seed0, AliTPCseed *seed1, const AliExternalTrackParam *param0Combined , Int_t cross){
//
- //track loop
+ // par0,par1 - parameter of tracks at DCA 0
+ // inner0,inner1 - parameter of tracks at the TPC entrance
+ // seed0, seed1 - detailed track information
+ // param0Combined - Use combined track parameters for binning
//
- 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[10];
+ 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] = param0Combined->GetZ();
+ x[4] = inner0->GetSnp();
+ x[5] = param0Combined->GetTgl();
+ x[6] = param0Combined->GetSigned1Pt();
+ x[7] = param0Combined->Pt();
+ x[8] = alpha;
+ x[9] = cross;
+ // 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]; // Modifiation 10.10 use not normalized deltas
+ if (ivar==2 || ivar ==3) x[0]*=1000; // angles in radian
+ 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::FindPairs(AliESDEvent *event) {
+void AliTPCcalibCosmic::FindPairs(const AliESDEvent *event){
//
// Find cosmic pairs
//
// Track0 is choosen in upper TPC part
// Track1 is choosen in lower TPC part
//
- if (GetDebugLevel()>1) printf("Hallo world: Im here\n");
- AliESDfriend *
ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
+ 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);
if (ntracks==0) return;
//
//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);
+ 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);
+ if (!friendTrack) continue;
TObject *calibObject;
- AliTPCseed *seed = 0;
+ 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));
+
+ 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);
//
//
// Propagate using Magnetic field and correct fo material budget
//
- AliTracker::PropagateTrackTo(¶m0,dmax+1,0.0005,3,kTRUE);
- AliTracker::PropagateTrackTo(¶m1,dmax+1,0.0005,3,kTRUE);
+ Double_t sign0=-1;
+ Double_t sign1=1;
+ Double_t maxsnp=0.90;
+ AliTracker::PropagateTrackToBxByBz(¶m0,dmax+1,TDatabasePDG::Instance()->GetParticle("e-")->Mass(),3,kTRUE,maxsnp,sign0);
+ AliTracker::PropagateTrackToBxByBz(¶m1,dmax+1,TDatabasePDG::Instance()->GetParticle("e-")->Mass(),3,kTRUE,maxsnp,sign1);
//
// Propagate rest to the 0,0 DCA - z should be ignored
//
//
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);
+ if (isPair &¶m0.Pt()>1) {
+ const TString &trigger = event->GetFiredTriggerClasses();
+ UInt_t specie = event->GetEventSpecie();
+ printf("COSMIC ?\t%s\t%d\t%f\t%f\n", trigger.Data(),specie, param0.GetZ(), param1.GetZ());
+ }
+ //
+ // 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]);
+ //
+ //
+ //
+ Int_t cross =0; // 0 no cross, 2 cross on both sides
+ if (isCrossI) cross+=1;
+ if (isCrossO) cross+=1;
+ FillHistoPerformance(¶m0, ¶m1, ip0, ip1, seed0, seed1,par0U, cross);
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;
}
}
}
-/*
-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])<1&&abs(Tr0.fP[4])+abs(Tr1.fP[4])<10");
- TCut cutN("cutN","min(Orig0.fTPCncls,Orig1.fTPCncls)>70");
+
+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 *const li) {
+ //
+ // component merging
+ //
+
+ TIterator* iter = li->MakeIterator();
+ AliTPCcalibCosmic* cal = 0;
-Long64_t AliTPCcalibCosmic::Merge(TCollection */*li*/) {
+ 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){
+
+Bool_t AliTPCcalibCosmic::IsPair(AliExternalTrackParam *tr0, AliExternalTrackParam *tr1) const{
//
//
/*
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) {
+ //
+ // Calculate the MIP value - gaussian fit used
+ //
+
+ 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 aMIPvalue = TMath::Min(funcDoubleGaus->GetParameter(1),funcDoubleGaus->GetParameter(4));
+
+ delete funcDoubleGaus;
+
+ return aMIPvalue;
+
+}
+
+
+
+
+void AliTPCcalibCosmic::CalculateBetheParams(TH2F */*hist*/, Double_t * /*initialParam*/) {
+ //
+ // Not implemented yet
+ //
+ return;
+
+}
+
+
+void AliTPCcalibCosmic::BinLogX(THnSparse *const 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 *newBins = new Double_t[bins + 1];
+
+ newBins[0] = from;
+ Double_t factor = pow(to/from, 1./bins);
+
+ for (int i = 1; i <= bins; i++) {
+ newBins[i] = factor * newBins[i-1];
+ }
+ axis->Set(bins, newBins);
+ delete [] newBins;
+}
-void AliTPCcalibCosmic::BinLogX(TH1 *h) {
+
+void AliTPCcalibCosmic::BinLogX(TH1 *const h) {
// Method for the correct logarithmic binning of histograms
Double_t from = axis->GetXmin();
Double_t to = axis->GetXmax();
- Double_t *new_bins = new Double_t[bins + 1];
+ Double_t *newBins = new Double_t[bins + 1];
- new_bins[0] = from;
+ newBins[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];
+ newBins[i] = factor * newBins[i-1];
}
- axis->Set(bins, new_bins);
- delete new_bins;
+ axis->Set(bins, newBins);
+ delete [] newBins;
}
+
+AliExternalTrackParam *AliTPCcalibCosmic::MakeTrack(const AliExternalTrackParam *track0, const AliExternalTrackParam *track1){
+ //
+ // Make a atrack using the kalman update of track0 and 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::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);
+ }
+ }
+}
+
+
+
+void AliTPCcalibCosmic::FindCosmicPairs(const AliESDEvent * event) {
+ //
+ // find cosmic pairs trigger by random trigger
+ //
+ //
+ AliESDVertex *vertexSPD = (AliESDVertex *)event->GetPrimaryVertexSPD();
+ AliESDVertex *vertexTPC = (AliESDVertex *)event->GetPrimaryVertexTPC();
+ AliESDfriend *esdFriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
+ const Double_t kMinPt=1;
+ const Double_t kMinPtMax=0.8;
+ const Double_t kMinNcl=50;
+ const Double_t kMaxDelta[5]={2,600,0.02,0.02,0.1};
+ Int_t ntracks=event->GetNumberOfTracks();
+ // Float_t dcaTPC[2]={0,0};
+ // Float_t covTPC[3]={0,0,0};
+
+ UInt_t specie = event->GetEventSpecie(); // skip laser events
+ if (specie==AliRecoParam::kCalib) return;
+
+
+
+ for (Int_t itrack0=0;itrack0<ntracks;itrack0++) {
+ AliESDtrack *track0 = event->GetTrack(itrack0);
+ if (!track0) continue;
+ if (!track0->IsOn(AliESDtrack::kTPCrefit)) continue;
+
+ if (TMath::Abs(AliTracker::GetBz())>1&&track0->Pt()<kMinPt) continue;
+ if (track0->GetTPCncls()<kMinNcl) continue;
+ if (TMath::Abs(track0->GetY())<kMaxDelta[0]) continue;
+ if (track0->GetKinkIndex(0)>0) continue;
+ const Double_t * par0=track0->GetParameter(); //track param at rhe DCA
+ //rm primaries
+ //
+ //track0->GetImpactParametersTPC(dcaTPC,covTPC);
+ //if (TMath::Abs(dcaTPC[0])<kMaxDelta[0]) continue;
+ //if (TMath::Abs(dcaTPC[1])<kMaxDelta[0]*2) continue;
+ // const AliExternalTrackParam * trackIn0 = track0->GetInnerParam();
+ for (Int_t itrack1=itrack0+1;itrack1<ntracks;itrack1++) {
+ AliESDtrack *track1 = event->GetTrack(itrack1);
+ if (!track1) continue;
+ if (!track1->IsOn(AliESDtrack::kTPCrefit)) continue;
+ if (track1->GetKinkIndex(0)>0) continue;
+ if (TMath::Abs(AliTracker::GetBz())>1&&track1->Pt()<kMinPt) continue;
+ if (track1->GetTPCncls()<kMinNcl) continue;
+ if (TMath::Abs(AliTracker::GetBz())>1&&TMath::Max(track1->Pt(), track0->Pt())<kMinPtMax) continue;
+ if (TMath::Abs(track1->GetY())<kMaxDelta[0]) continue;
+ //track1->GetImpactParametersTPC(dcaTPC,covTPC);
+ // if (TMath::Abs(dcaTPC[0])<kMaxDelta[0]) continue;
+ //if (TMath::Abs(dcaTPC[1])<kMaxDelta[0]*2) continue;
+ //
+ const Double_t* par1=track1->GetParameter(); //track param at rhe DCA
+ //
+ Bool_t isPair=kTRUE;
+ for (Int_t ipar=0; ipar<5; ipar++){
+ if (ipar==4&&TMath::Abs(AliTracker::GetBz())<1) continue; // 1/pt not defined for B field off
+ if (TMath::Abs(TMath::Abs(par0[ipar])-TMath::Abs(par1[ipar]))>kMaxDelta[ipar]) isPair=kFALSE;
+ }
+ if (!isPair) continue;
+ if (TMath::Abs(TMath::Abs(track0->GetAlpha()-track1->GetAlpha())-TMath::Pi())>kMaxDelta[2]) isPair=kFALSE;
+ //delta with correct sign
+ /*
+ TCut cut0="abs(t1.fP[0]+t0.fP[0])<2"
+ TCut cut3="abs(t1.fP[3]+t0.fP[3])<0.02"
+ TCut cut4="abs(t1.fP[4]+t0.fP[4])<0.2"
+ */
+ if (TMath::Abs(par0[0]+par1[0])>kMaxDelta[0]) isPair=kFALSE; //delta y opposite sign
+ if (TMath::Abs(par0[3]+par1[3])>kMaxDelta[3]) isPair=kFALSE; //delta tgl opposite sign
+ if (TMath::Abs(AliTracker::GetBz())>1 && TMath::Abs(par0[4]+par1[4])>kMaxDelta[4]) isPair=kFALSE; //delta 1/pt opposite sign
+ if (!isPair) continue;
+ // const AliExternalTrackParam * trackIn1 = track1->GetInnerParam();
+ //
+ //
+ TTreeSRedirector * pcstream = GetDebugStreamer();
+ Int_t ntracksSPD = vertexSPD->GetNContributors();
+ Int_t ntracksTPC = vertexTPC->GetNContributors();
+ //
+ AliESDfriendTrack *friendTrack0 = esdFriend->GetTrack(itrack0);
+ if (!friendTrack0) continue;
+ AliESDfriendTrack *friendTrack1 = esdFriend->GetTrack(itrack1);
+ if (!friendTrack1) continue;
+ TObject *calibObject;
+ AliTPCseed *seed0 = 0;
+ AliTPCseed *seed1 = 0;
+ //
+ for (Int_t l=0;(calibObject=friendTrack0->GetCalibObject(l));++l) {
+ if ((seed0=dynamic_cast<AliTPCseed*>(calibObject))) break;
+ }
+ for (Int_t l=0;(calibObject=friendTrack1->GetCalibObject(l));++l) {
+ if ((seed1=dynamic_cast<AliTPCseed*>(calibObject))) break;
+ }
+ //
+ if (pcstream){
+ (*pcstream)<<"pairs"<<
+ "run="<<fRun<< // run number
+ "event="<<fEvent<< // event number
+ "time="<<fTime<< // time stamp of event
+ "trigger="<<fTrigger<< // trigger
+ "triggerClass="<<&fTriggerClass<< // trigger
+ "mag="<<fMagF<< // magnetic field
+ //
+ "nSPD="<<ntracksSPD<<
+ "nTPC="<<ntracksTPC<<
+ "vSPD.="<<vertexSPD<< //primary vertex -SPD
+ "vTPC.="<<vertexTPC<< //primary vertex -TPC
+ "t0.="<<track0<< //track0
+ "t1.="<<track1<< //track1
+ "ft0.="<<friendTrack0<< //track0
+ "ft1.="<<friendTrack1<< //track1
+ "s0.="<<seed0<< //track0
+ "s1.="<<seed1<< //track1
+ "\n";
+ }
+ if (!fCosmicTree) {
+ fCosmicTree = new TTree("pairs","pairs");
+ fCosmicTree->SetDirectory(0);
+ }
+ if (fCosmicTree->GetEntries()==0){
+ //
+ fCosmicTree->SetDirectory(0);
+ fCosmicTree->Branch("t0.",&track0);
+ fCosmicTree->Branch("t1.",&track1);
+ fCosmicTree->Branch("ft0.",&friendTrack0);
+ fCosmicTree->Branch("ft1.",&friendTrack1);
+ }else{
+ fCosmicTree->SetBranchAddress("t0.",&track0);
+ fCosmicTree->SetBranchAddress("t1.",&track1);
+ fCosmicTree->SetBranchAddress("ft0.",&friendTrack0);
+ fCosmicTree->SetBranchAddress("ft1.",&friendTrack1);
+ }
+ fCosmicTree->Fill();
+ }
+ }
+}
+
+
+void AliTPCcalibCosmic::Terminate(){
+ //
+ // copy the cosmic tree to memory resident tree
+ //
+ static Int_t counter=0;
+ printf("AliTPCcalibCosmic::Terminate\t%d\n",counter);
+ counter++;
+ AliTPCcalibBase::Terminate();
+}
+
+
+void AliTPCcalibCosmic::AddTree(TTree* treeOutput, TTree * treeInput){
+ //
+ // Add the content of tree:
+ // Notice automatic copy of tree in ROOT does not work for such complicated tree
+ //
+ AliESDtrack *track0=new AliESDtrack;
+ AliESDtrack *track1=new AliESDtrack;
+ AliESDfriendTrack *ftrack0=new AliESDfriendTrack;
+ AliESDfriendTrack *ftrack1=new AliESDfriendTrack;
+ treeInput->SetBranchAddress("t0.",&track0);
+ treeInput->SetBranchAddress("t1.",&track1);
+ treeInput->SetBranchAddress("ft0.",&ftrack0);
+ treeInput->SetBranchAddress("ft1.",&ftrack1);
+ if (treeOutput->GetEntries()==0){
+ //
+ treeOutput->SetDirectory(0);
+ treeOutput->Branch("t0.",&track0);
+ treeOutput->Branch("t1.",&track1);
+ treeOutput->Branch("ft0.",&ftrack0);
+ treeOutput->Branch("ft1.",&ftrack1);
+ }else{
+ treeOutput->SetBranchAddress("t0.",&track0);
+ treeOutput->SetBranchAddress("t1.",&track1);
+ treeOutput->SetBranchAddress("ft0.",&ftrack0);
+ treeOutput->SetBranchAddress("ft1.",&ftrack1);
+ }
+ Int_t entries= treeInput->GetEntries();
+ for (Int_t i=0; i<entries; i++){
+ treeInput->GetEntry(i);
+ treeOutput->Fill();
+ }
+}
+
+
+
+void AliTPCcalibCosmic::MakeFitTree(TTree * treeInput, TTreeSRedirector *pcstream, const TObjArray * corrArray, Int_t step, Int_t run){
+ //
+ // Make fit tree
+ // refit the tracks with original points + corrected points for each correction
+ // Input:
+ // treeInput - tree with cosmic tracks
+ // pcstream - debug output
+
+ // Algorithm:
+ // Loop over pair of cosmic tracks:
+ // 1. Find trigger offset between cosmic event and "physic" trigger
+ // 2. Refit tracks with current transformation
+ // 3. Refit tracks using additional "primitive" distortion on top
+ // Best correction estimated as linear combination of corrections
+ // minimizing the observed distortions
+ // Observed distortions - matching in the y,z, snp, theta and 1/pt
+ //
+ const Double_t kResetCov=20.;
+ const Double_t kMaxDelta[5]={1,40,0.03,0.01,0.2};
+ const Double_t kSigma=2.;
+ const Double_t kMaxTime=1050;
+ const Double_t kMaxSnp=0.8;
+ Int_t ncorr=corrArray->GetEntries();
+ AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
+ AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters();
+ AliGRPObject* grp = AliTPCcalibDB::Instance()->GetGRP(run);
+ Double_t time=0.5*(grp->GetTimeStart() +grp->GetTimeEnd());
+ transform->SetCurrentRun(run);
+ transform->SetCurrentTimeStamp(TMath::Nint(time));
+ Double_t covar[15];
+ for (Int_t i=0;i<15;i++) covar[i]=0;
+ covar[0]=kSigma*kSigma;
+ covar[2]=kSigma*kSigma;
+ covar[5]=kSigma*kSigma/Float_t(150*150);
+ covar[9]=kSigma*kSigma/Float_t(150*150);
+ covar[14]=0.2*0.2;
+ Double_t *distortions = new Double_t[ncorr+1];
+
+ AliESDtrack *track0=new AliESDtrack;
+ AliESDtrack *track1=new AliESDtrack;
+ AliESDfriendTrack *ftrack0=new AliESDfriendTrack;
+ AliESDfriendTrack *ftrack1=new AliESDfriendTrack;
+ treeInput->SetBranchAddress("t0.",&track0);
+ treeInput->SetBranchAddress("t1.",&track1);
+ treeInput->SetBranchAddress("ft0.",&ftrack0);
+ treeInput->SetBranchAddress("ft1.",&ftrack1);
+ Int_t entries= treeInput->GetEntries();
+ for (Int_t i=0; i<entries; i+=step){
+ treeInput->GetEntry(i);
+ if (i%20==0) printf("%d\n",i);
+ if (!ftrack0->GetTPCOut()) continue;
+ if (!ftrack1->GetTPCOut()) continue;
+ AliTPCseed *seed0=0;
+ AliTPCseed *seed1=0;
+ TObject *calibObject;
+ for (Int_t l=0;(calibObject=ftrack0->GetCalibObject(l));++l) {
+ if ((seed0=dynamic_cast<AliTPCseed*>(calibObject))) break;
+ }
+ for (Int_t l=0;(calibObject=ftrack1->GetCalibObject(l));++l) {
+ if ((seed1=dynamic_cast<AliTPCseed*>(calibObject))) break;
+ }
+ if (!seed0) continue;
+ if (!seed1) continue;
+ if (TMath::Abs(seed0->GetSnp())>kMaxSnp) continue;
+ if (TMath::Abs(seed1->GetSnp())>kMaxSnp) continue;
+ //
+ //
+ Int_t nclA0=0, nclC0=0; // number of clusters
+ Int_t nclA1=0, nclC1=0; // number of clusters
+ Int_t ncl0=0,ncl1=0;
+ Double_t rmin0=300, rmax0=-300; // variables to estimate the time0 - trigger offset
+ Double_t rmin1=300, rmax1=-300;
+ Double_t tmin0=2000, tmax0=-2000;
+ Double_t tmin1=2000, tmax1=-2000;
+ //
+ //
+ // calculate trigger offset usig "missing clusters"
+ for (Int_t irow=0; irow<159; irow++){
+ AliTPCclusterMI *cluster0=seed0->GetClusterPointer(irow);
+ if (cluster0 &&cluster0->GetX()>10){
+ if (cluster0->GetX()<rmin0) { rmin0=cluster0->GetX(); tmin0=cluster0->GetTimeBin();}
+ if (cluster0->GetX()>rmax0) { rmax0=cluster0->GetX(); tmax0=cluster0->GetTimeBin();}
+ ncl0++;
+ if (cluster0->GetDetector()%36<18) nclA0++;
+ if (cluster0->GetDetector()%36>=18) nclC0++;
+ }
+ AliTPCclusterMI *cluster1=seed1->GetClusterPointer(irow);
+ if (cluster1&&cluster1->GetX()>10){
+ if (cluster1->GetX()<rmin1) { rmin1=cluster1->GetX(); tmin1=cluster1->GetTimeBin();}
+ if (cluster1->GetX()>rmax1) { rmax1=cluster1->GetX(); tmax1=cluster1->GetTimeBin();}
+ ncl1++;
+ if (cluster1->GetDetector()%36<18) nclA1++;
+ if (cluster1->GetDetector()%36>=18) nclC1++;
+ }
+ }
+ Int_t cosmicType=0; // types of cosmic topology
+ if ((nclA0>nclC0) && (nclA1>nclC1)) cosmicType=0; // AA side
+ if ((nclA0<nclC0) && (nclA1<nclC1)) cosmicType=1; // CC side
+ if ((nclA0>nclC0) && (nclA1<nclC1)) cosmicType=2; // AC side
+ if ((nclA0<nclC0) && (nclA1>nclC1)) cosmicType=3; // CA side
+ //if ((nclA0>nclC0) && (nclA1<nclC1)) cosmicType=6; // AC side out of time
+ //if ((nclA0>nclC0) && (nclA1<nclC1)) cosmicType=7; // CA side out of time
+ //
+ Double_t deltaTime = 0; // correction for trigger not in time - equalizing the time arival
+ if ((cosmicType>1)&&TMath::Abs(track1->GetZ()-track0->GetZ())>4){
+ cosmicType+=4;
+ deltaTime=0.5*(track1->GetZ()-track0->GetZ())/param->GetZWidth();
+ if (nclA0>nclC0) deltaTime*=-1; // if A side track
+ }
+ //
+ TVectorD vectorDT(8);
+ Int_t crossCounter=0;
+ Double_t deltaTimeCross = AliTPCcalibCosmic::GetDeltaTime(rmin0, rmax0, rmin1, rmax1, tmin0, tmax0, tmin1, tmax1, TMath::Abs(track0->GetY()),vectorDT);
+ Bool_t isOKTrigger=kTRUE;
+ for (Int_t ic=0; ic<6;ic++) {
+ if (TMath::Abs(vectorDT[ic])>0) {
+ if (vectorDT[ic]+vectorDT[6]<0) isOKTrigger=kFALSE;
+ if (vectorDT[ic]+vectorDT[7]>kMaxTime) isOKTrigger=kFALSE;
+ if (isOKTrigger){
+ crossCounter++;
+ }
+ }
+ }
+ Double_t deltaTimeCluster=deltaTime;
+ if ((cosmicType==0 || cosmicType==1) && crossCounter>0){
+ deltaTimeCluster=deltaTimeCross;
+ cosmicType+=8;
+ }
+ if (nclA0*nclC0>0 || nclA1*nclC1>0) cosmicType+=16; // mixed A side C side - bad for visualization
+ //
+ // Apply current transformation
+ //
+ //
+ for (Int_t irow=0; irow<159; irow++){
+ AliTPCclusterMI *cluster0=seed0->GetClusterPointer(irow);
+ if (cluster0 &&cluster0->GetX()>10){
+ Double_t x0[3]={cluster0->GetRow(),cluster0->GetPad(),cluster0->GetTimeBin()+deltaTimeCluster};
+ Int_t index0[1]={cluster0->GetDetector()};
+ transform->Transform(x0,index0,0,1);
+ cluster0->SetX(x0[0]);
+ cluster0->SetY(x0[1]);
+ cluster0->SetZ(x0[2]);
+ //
+ }
+ AliTPCclusterMI *cluster1=seed1->GetClusterPointer(irow);
+ if (cluster1&&cluster1->GetX()>10){
+ Double_t x1[3]={cluster1->GetRow(),cluster1->GetPad(),cluster1->GetTimeBin()+deltaTimeCluster};
+ Int_t index1[1]={cluster1->GetDetector()};
+ transform->Transform(x1,index1,0,1);
+ cluster1->SetX(x1[0]);
+ cluster1->SetY(x1[1]);
+ cluster1->SetZ(x1[2]);
+ }
+ }
+ //
+ //
+ Double_t alpha=track0->GetAlpha(); // rotation frame
+ Double_t cos = TMath::Cos(alpha);
+ Double_t sin = TMath::Sin(alpha);
+ Double_t mass = TDatabasePDG::Instance()->GetParticle("mu+")->Mass();
+ AliExternalTrackParam btrack0=*(ftrack0->GetTPCOut());
+ AliExternalTrackParam btrack1=*(ftrack1->GetTPCOut());
+ btrack0.Rotate(alpha);
+ btrack1.Rotate(alpha);
+ // change the sign for track 1
+ Double_t* par1=(Double_t*)btrack0.GetParameter();
+ par1[3]*=-1;
+ par1[4]*=-1;
+ btrack0.AddCovariance(covar);
+ btrack1.AddCovariance(covar);
+ btrack0.ResetCovariance(kResetCov);
+ btrack1.ResetCovariance(kResetCov);
+ Bool_t isOK=kTRUE;
+ Bool_t isOKT=kTRUE;
+ TObjArray tracks0(ncorr+1);
+ TObjArray tracks1(ncorr+1);
+ //
+ Double_t dEdx0Tot=seed0->CookdEdxAnalytical(0.02,0.6,kTRUE);
+ Double_t dEdx1Tot=seed1->CookdEdxAnalytical(0.02,0.6,kTRUE);
+ Double_t dEdx0Max=seed0->CookdEdxAnalytical(0.02,0.6,kFALSE);
+ Double_t dEdx1Max=seed1->CookdEdxAnalytical(0.02,0.6,kFALSE);
+ //if (TMath::Abs((dEdx0Max+1)/(dEdx0Tot+1)-1.)>0.1) isOK=kFALSE;
+ //if (TMath::Abs((dEdx1Max+1)/(dEdx1Tot+1)-1.)>0.1) isOK=kFALSE;
+ ncl0=0; ncl1=0;
+ for (Int_t icorr=-1; icorr<ncorr; icorr++){
+ AliExternalTrackParam rtrack0=btrack0;
+ AliExternalTrackParam rtrack1=btrack1;
+ AliTPCCorrection *corr = 0;
+ if (icorr>=0) corr = (AliTPCCorrection*)corrArray->At(icorr);
+ //
+ for (Int_t irow=159; irow>0; irow--){
+ AliTPCclusterMI *cluster=seed0->GetClusterPointer(irow);
+ if (!cluster) continue;
+ if (!isOKT) break;
+ Double_t rD[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
+ transform->RotatedGlobal2Global(cluster->GetDetector()%36,rD); // transform to global
+ Float_t r[3]={rD[0],rD[1],rD[2]};
+ if (corr){
+ corr->DistortPoint(r, cluster->GetDetector());
+ }
+ //
+ Double_t cov[3]={0.01,0.,0.01};
+ Double_t lx =cos*r[0]+sin*r[1];
+ Double_t ly =-sin*r[0]+cos*r[1];
+ rD[1]=ly; rD[0]=lx; rD[2]=r[2]; //transform to track local
+ if (!AliTracker::PropagateTrackToBxByBz(&rtrack0, lx,mass,1.,kFALSE)) isOKT=kFALSE;;
+ if (!rtrack0.Update(&rD[1],cov)) isOKT =kFALSE;
+ if (icorr<0) ncl0++;
+ }
+ //
+ for (Int_t irow=159; irow>0; irow--){
+ AliTPCclusterMI *cluster=seed1->GetClusterPointer(irow);
+ if (!cluster) continue;
+ if (!isOKT) break;
+ Double_t rD[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
+ transform->RotatedGlobal2Global(cluster->GetDetector()%36,rD);
+ Float_t r[3]={rD[0],rD[1],rD[2]};
+ if (corr){
+ corr->DistortPoint(r, cluster->GetDetector());
+ }
+ //
+ Double_t cov[3]={0.01,0.,0.01};
+ Double_t lx =cos*r[0]+sin*r[1];
+ Double_t ly =-sin*r[0]+cos*r[1];
+ rD[1]=ly; rD[0]=lx; rD[2]=r[2];
+ if (!AliTracker::PropagateTrackToBxByBz(&rtrack1, lx,mass,1.,kFALSE)) isOKT=kFALSE;
+ if (!rtrack1.Update(&rD[1],cov)) isOKT=kFALSE;
+ if (icorr<0) ncl1++;
+ }
+ if (!AliTracker::PropagateTrackToBxByBz(&rtrack0, 0,mass,10.,kFALSE)) isOKT=kFALSE;
+ if (!AliTracker::PropagateTrackToBxByBz(&rtrack1, 0,mass,10.,kFALSE)) isOKT=kFALSE;
+ if (!AliTracker::PropagateTrackToBxByBz(&rtrack0, 0,mass,1.,kFALSE)) isOKT=kFALSE;
+ if (!AliTracker::PropagateTrackToBxByBz(&rtrack1, 0,mass,1.,kFALSE)) isOKT=kFALSE;
+ const Double_t *param0=rtrack0.GetParameter();
+ const Double_t *param1=rtrack1.GetParameter();
+ for (Int_t ipar=0; ipar<4; ipar++){
+ if (TMath::Abs(param1[ipar]-param0[ipar])>kMaxDelta[ipar]) isOK=kFALSE;
+ }
+ tracks0.AddAt(rtrack0.Clone(), icorr+1);
+ tracks1.AddAt(rtrack1.Clone(), icorr+1);
+ AliExternalTrackParam out0=*(ftrack0->GetTPCOut());
+ AliExternalTrackParam out1=*(ftrack1->GetTPCOut());
+ Int_t nentries=TMath::Min(ncl0,ncl1);
+
+ if (icorr<0) {
+ (*pcstream)<<"cosmic"<<
+ "isOK="<<isOK<< // correct all propagation update and also residuals
+ "isOKT="<<isOKT<< // correct all propagation update
+ "isOKTrigger="<<isOKTrigger<< // correct? estimate of trigger offset
+ "id="<<cosmicType<<
+ //
+ //
+ "cross="<<crossCounter<<
+ "vDT.="<<&vectorDT<<
+ //
+ "dTime="<<deltaTime<< // delta time using the A-c side cross
+ "dTimeCross="<<deltaTimeCross<< // delta time using missing clusters
+ //
+ "dEdx0Max="<<dEdx0Max<<
+ "dEdx0Tot="<<dEdx0Tot<<
+ "dEdx1Max="<<dEdx1Max<<
+ "dEdx1Tot="<<dEdx1Tot<<
+ //
+ "track0.="<<track0<< // original track 0
+ "track1.="<<track1<< // original track 1
+ "out0.="<<&out0<< // outer track 0
+ "out1.="<<&out1<< // outer track 1
+ "rtrack0.="<<&rtrack0<< // refitted track with current transform
+ "rtrack1.="<<&rtrack1<< //
+ "ncl0="<<ncl0<<
+ "ncl1="<<ncl1<<
+ "entries="<<nentries<< // number of clusters
+ "\n";
+ }
+ }
+ //
+
+ if (isOK){
+ Int_t nentries=TMath::Min(ncl0,ncl1);
+ for (Int_t ipar=0; ipar<5; ipar++){
+ for (Int_t icorr=-1; icorr<ncorr; icorr++){
+ AliTPCCorrection *corr = 0;
+ if (icorr>=0) corr = (AliTPCCorrection*)corrArray->At(icorr);
+ //
+ AliExternalTrackParam *param0=(AliExternalTrackParam *) tracks0.At(icorr+1);
+ AliExternalTrackParam *param1=(AliExternalTrackParam *) tracks1.At(icorr+1);
+ distortions[icorr+1]=param1->GetParameter()[ipar]-param0->GetParameter()[ipar];
+ if (icorr>=0){
+ distortions[icorr+1]-=distortions[0];
+ }
+ //
+ if (icorr<0){
+ Double_t bz=AliTrackerBase::GetBz();
+ Double_t gxyz[3];
+ param0->GetXYZ(gxyz);
+ Int_t dtype=20;
+ Double_t theta=param0->GetParameter()[3];
+ Double_t phi = alpha;
+ Double_t snp = track0->GetInnerParam()->GetSnp();
+ Double_t mean= distortions[0];
+ Int_t index = param0->GetIndex(ipar,ipar);
+ Double_t rms=TMath::Sqrt(param1->GetCovariance()[index]+param1->GetCovariance()[index]);
+ if (crossCounter<1) rms*=1;
+ Double_t sector=9*phi/TMath::Pi();
+ Double_t dsec = sector-TMath::Nint(sector+0.5);
+ Double_t gx=gxyz[0],gy=gxyz[1],gz=gxyz[2];
+ Double_t refX=TMath::Sqrt(gx*gx+gy*gy);
+ Double_t dRrec=0;
+ // Double_t pt=(param0->GetSigned1Pt()+param1->GetSigned1Pt())*0.5;
+ Double_t pt=(param0->GetSigned1Pt()+param1->GetSigned1Pt())*0.5;
+
+ (*pcstream)<<"fit"<< // dump valus for fit
+ "run="<<run<< //run number
+ "bz="<<bz<< // magnetic filed used
+ "dtype="<<dtype<< // detector match type 20
+ "ptype="<<ipar<< // parameter type
+ "theta="<<theta<< // theta
+ "phi="<<phi<< // phi
+ "snp="<<snp<< // snp
+ "mean="<<mean<< // mean dist value
+ "rms="<<rms<< // rms
+ "sector="<<sector<<
+ "dsec="<<dsec<<
+ //
+ "refX="<<refX<< // reference radius
+ "gx="<<gx<< // global position
+ "gy="<<gy<< // global position
+ "gz="<<gz<< // global position
+ "dRrec="<<dRrec<< // delta Radius in reconstruction
+ "pt="<<pt<< //1/pt
+ "id="<<cosmicType<< //type of the cosmic used
+ "entries="<<nentries;// number of entries in bin
+ (*pcstream)<<"cosmicDebug"<<
+ "p0.="<<param0<< // dump distorted track 0
+ "p1.="<<param1; // dump distorted track 1
+ }
+ if (icorr>=0){
+ (*pcstream)<<"fit"<<
+ Form("%s=",corr->GetName())<<distortions[icorr+1]; // dump correction value
+ (*pcstream)<<"cosmicDebug"<<
+ Form("%s=",corr->GetName())<<distortions[icorr+1]<< // dump correction value
+ Form("%sp0.=",corr->GetName())<<param0<< // dump distorted track 0
+ Form("%sp1.=",corr->GetName())<<param1; // dump distorted track 1
+ }
+ } //loop corrections
+ (*pcstream)<<"fit"<<"isOK="<<isOK<<"\n";
+ (*pcstream)<<"cosmicDebug"<<"isOK="<<isOK<<"\n";
+ } //loop over parameters
+ } // dump results
+ }//loop tracks
+ delete [] distortions;
+}
+
+
+
+Double_t AliTPCcalibCosmic::GetDeltaTime(Double_t rmin0, Double_t rmax0, Double_t rmin1, Double_t rmax1, Double_t tmin0, Double_t tmax0, Double_t tmin1, Double_t tmax1, Double_t dcaR, TVectorD &vectorDT)
+{
+ //
+ // Estimate trigger offset between random cosmic event and "physics" trigger
+ // Efficiency about 50 % of cases:
+ // Cases:
+ // 0. Tracks crossing A side and C side - no match in z - 30 % of cases
+ // 1. Track only on one side and dissapear at small or at high radiuses - 50 % of cases
+ // 1.a) rmax<Rc && tmax<Tcmax && tmax>tmin => deltaT=Tcmax-tmax
+ // 1.b) rmin>Rcmin && tmin<Tcmax && tmin>tmax => deltaT=Tcmax-tmin
+ // // case the z matching gives proper time
+ // 1.c) rmax<Rc && tmax>Tcmin && tmax<tmin => deltaT=-tmax
+ //
+ // check algorithm:
+ // TCut cutStop = "(min(rmax0,rmax1)<235||abs(rmin0-rmin1)>10)"; // tracks not registered for full time
+
+ // Combinations:
+ // 0-1 - forbidden
+ // 0-2 - forbidden
+ // 0-3 - occur - wrong correlation
+ // 1-2 - occur - wrong correlation
+ // 1-3 - forbidden
+ // 2-3 - occur - small number of outlyers -20%
+ // Frequency:
+ // 0 - 106
+ // 1 - 265
+ // 2 - 206
+ // 3 - 367
+ //
+ const Double_t kMaxRCut=235; // max radius
+ const Double_t kMinRCut=TMath::Max(dcaR,90.); // min radius
+ const Double_t kMaxDCut=30; // max distance for minimal radius
+ const Double_t kMinTime=110;
+ const Double_t kMaxTime=950;
+ Double_t deltaT=0;
+ Int_t counter=0;
+ vectorDT[6]=TMath::Min(TMath::Min(tmin0,tmin1),TMath::Min(tmax0,tmax1));
+ vectorDT[7]=TMath::Max(TMath::Max(tmin0,tmin1),TMath::Max(tmax0,tmax1));
+ if (TMath::Min(rmax0,rmax1)<kMaxRCut){
+ // max cross - deltaT>0
+ if (rmax0<kMaxRCut && tmax0 <kMaxTime && tmax0>tmin0) vectorDT[0]=kMaxTime-tmax0; // disapear at CE
+ if (rmax1<kMaxRCut && tmax1 <kMaxTime && tmax1>tmin1) vectorDT[1]=kMaxTime-tmax1; // disapear at CE
+ // min cross - deltaT<0 - OK they are correlated
+ if (rmax0<kMaxRCut && tmax0 >kMinTime && tmax0<tmin0) vectorDT[2]=-tmax0; // disapear at ROC
+ if (rmax1<kMaxRCut && tmax1 >kMinTime && tmax1<tmin1) vectorDT[3]=-tmax1; // disapear at ROC
+ }
+ if (rmin0> kMinRCut+kMaxDCut && tmin0 <kMaxTime && tmin0>tmax0) vectorDT[4]=kMaxTime-tmin0;
+ if (rmin1> kMinRCut+kMaxDCut && tmin1 <kMaxTime && tmin1>tmax1) vectorDT[5]=kMaxTime-tmin1;
+ Bool_t isOK=kTRUE;
+ for (Int_t i=0; i<6;i++) {
+ if (TMath::Abs(vectorDT[i])>0) {
+ counter++;
+ if (vectorDT[i]+vectorDT[6]<0) isOK=kFALSE;
+ if (vectorDT[i]+vectorDT[7]>kMaxTime) isOK=kFALSE;
+ if (isOK) deltaT=vectorDT[i];
+ }
+ }
+ return deltaT;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff