TClonesArray *particles=gAlice->Particles();
int np=particles->GetEntriesFast();
+ int *good=new int[np];
+ for (int ii=0; ii<np; ii++) good[ii]=0;
AliTPC *TPC = (AliTPC*)gAlice->GetDetector("TPC");
int ver=TPC->IsVersion();
if (digp!=0) TPC->SetDigParam(digp);
else cerr<<"Warning: default TPC parameters will be used !\n";
- int nrows=TPC->GetDigParam()->GetParam().GetNRowUp()-1;
+ int nrow_up=TPC->GetDigParam()->GetParam().GetNRowUp();
+ int nrows=TPC->GetDigParam()->GetParam().GetNRowLow()+nrow_up;
+ int zero=TPC->GetDigParam()->GetParam().GetZeroSup();
+ int gap=int(0.125*nrows);
+ int good_number=int(0.4*nrows);
+
switch (ver) {
case 1:
cerr<<"Making clusters...\n";
int lab=c->fTracks[0];
if (lab<0) continue; //noise cluster
lab=TMath::Abs(lab);
- int sector=c->fSector-1, row=c->fPadRow-1;
- GParticle *p=(GParticle*)particles->UncheckedAt(lab);
- int ks;
- if (row==nrows) {ks=p->GetKS()|0x1000; p->SetKS(ks);}
- if (row==nrows-8) {ks=p->GetKS()|0x800; p->SetKS(ks);}
- ks=p->GetKS()+1; p->SetKS(ks);
+ int row=c->fPadRow;
+ if (row==nrow_up-1 ) good[lab]|=0x1000;
+ if (row==nrow_up-1-gap) good[lab]|=0x800;
+ good[lab]++;
}
break;
if (!clusters) {cerr<<"No clusters found !\n"; return;}
int n=clusters->GetEntriesFast();
cerr<<"Number of clusters "<<n<<" \n";
-
+
cerr<<"Marking \"good\" tracks... \n";
TTree *TD=gDirectory->Get(tname);
TClonesArray *digits=TPC->Digits();
int sectors_by_rows=(int)TD->GetEntries();
for (i=0; i<sectors_by_rows; i++) {
if (!TD->GetEvent(i)) continue;
- int sec, row;
+ int row;
int ndigits=digits->GetEntriesFast();
int j;
for (j=0; j<ndigits; j++) {
int idx0=dig->fTracks[0];
int idx1=dig->fTracks[1];
int idx2=dig->fTracks[2];
- sec=dig->fSector-1; row=dig->fPadRow-1;
- if (idx0>=0 && dig->fSignal>0) count[idx0]+=1;
- if (idx1>=0 && dig->fSignal>0) count[idx1]+=1;
- if (idx2>=0 && dig->fSignal>0) count[idx2]+=1;
+ row=dig->fPadRow;
+ if (idx0>=0 && dig->fSignal>=zero) count[idx0]+=1;
+ if (idx1>=0 && dig->fSignal>=zero) count[idx1]+=1;
+ if (idx2>=0 && dig->fSignal>=zero) count[idx2]+=1;
}
for (j=0; j<np; j++) {
- GParticle *p=(GParticle*)particles->UncheckedAt(j);
if (count[j]>1) {
int ks;
- if (row==nrows ) {ks=p->GetKS()|0x1000; p->SetKS(ks);}
- if (row==nrows-8 ) {ks=p->GetKS()|0x800; p->SetKS(ks);}
- ks=p->GetKS()+1; p->SetKS(ks);
+ if (row==nrow_up-1 ) good[j]|=0x1000;
+ if (row==nrow_up-1-gap) good[j]|=0x800;
+ good[j]++;
}
count[j]=0;
}
TH1F *hd=new TH1F("hd","Impact parameter distribution ",30,0,25);
hd->SetFillColor(6);
- TH1F *hgood=new TH1F("hgood","Good tracks",20,0,2);
- TH1F *hfound=new TH1F("hfound","Found tracks",20,0,2);
- TH1F *hfake=new TH1F("hfake","Fake tracks",20,0,2);
- TH1F *hg=new TH1F("hg","",20,0,2); //efficiency for good tracks
+ TH1F *hgood=new TH1F("hgood","Good tracks",20,0,10);
+ TH1F *hfound=new TH1F("hfound","Found tracks",20,0,10);
+ TH1F *hfake=new TH1F("hfake","Fake tracks",20,0,10);
+ TH1F *hg=new TH1F("hg","",20,0,10); //efficiency for good tracks
hg->SetLineColor(4); hg->SetLineWidth(2);
- TH1F *hf=new TH1F("hf","Efficiency for fake tracks",20,0,2);
+ TH1F *hf=new TH1F("hf","Efficiency for fake tracks",20,0,10);
hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2);
+ TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,500.);
+ TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,500.);
+
for (int i=0; i<np; i++) {
- GParticle *p = (GParticle*)particles->UncheckedAt(i);
- if (p->GetParent()>=0) continue; //secondary particle
- if (p->GetKS()<0x1000+0x800+2+30) continue;
- Double_t ptg=p->GetPT(),pxg=p->GetPx(),pyg=p->GetPy(),pzg=p->GetPz();
+ TParticle *p = (TParticle*)particles->UncheckedAt(i);
+ if (p->GetFirstMother()>=0) continue; //secondary particle
+ if (good[i] < 0x1000+0x800+2+good_number) continue;
+ Double_t ptg=p->Pt(),pxg=p->Px(),pyg=p->Py(),pzg=p->Pz();
if (ptg<0.100) continue;
if (fabs(pzg/ptg)>0.999) continue;
int found=0;
for (int j=0; j<nt; j++) {
AliTPCtrack *track=(AliTPCtrack*)tracks->UncheckedAt(j);
- int lab=track->GetLab();
+ int lab=track->GetLabel(nrows);
if (fabs(lab)!=i) continue;
- //if (lab!=i) continue;
+
found=1;
- Double_t xk=76.;
+ Double_t xk=76.;
track->PropagateTo(xk);
xk-=0.11;
track->PropagateTo(xk,42.7,2.27); //C
- xk-=2.6;
+ xk-=26.;
track->PropagateTo(xk,36.2,1.98e-3); //C02
xk-=0.051;
track->PropagateTo(xk,42.7,2.27); //C
-
- xk-=0.4;
- track->PropagateTo(xk,21.82,2.33); //ITS+beam_pipe+etc (approximately)
+ xk-=25.;
+ track->PropagateTo(xk,36.7,1.29e-3);//Air
+ xk-=0.4; // +
+ track->PropagateTo(xk,21.82,2.33);//ITS+beam_pipe+etc (approximately)
track->PropagateToVertex(); //comparison should be done at the vertex
Double_t lam =TMath::ATan(pz /pt );
hl->Fill((lam - lamg)*1000.);
hpt->Fill((pt - ptg)/ptg*100.);
- Double_t x,y,z; track->GetXYZ(x,y,z);
+ Double_t x=track->GetX(), y=track->GetY(), z=track->GetZ();
hd->Fill(sqrt(x*x + y*y + z*z)*10.);
+
+ Double_t mom=track->GetP();
+ Double_t dedx=track->GetdEdX(0.05,0.80)/
+ digp->GetParam().GetPadPitchLength();
+
+ hep->Fill(mom,dedx,1.);
+ if (p->GetPdgCode()==211 || p->GetPdgCode()==-211)
+ if (mom>0.4 && mom<0.5)
+ he->Fill(dedx,1.);
+
break;
}
if (!found) cerr<<"Track number "<<i<<" was not found !\n";
}
+
+ delete[] good;
+
Stat_t ngood =hgood->GetEntries(); cerr<<"Good tracks "<<ngood<<endl;
Stat_t nfound=hfound->GetEntries();
if (ngood!=0)
hd->SetXTitle("(mm)"); hd->Draw(); c1->cd();
TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd();
- /*p5->SetTopMargin(0.25);*/ p5->SetFillColor(41); p5->SetFrameFillColor(10);
+ p5->SetFillColor(41); p5->SetFrameFillColor(10);
hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
hg->Divide(hfound,hgood,1,1.,"b");
hf->Divide(hfake,hgood,1,1.,"b");
text = new TText(0.453919,1.11408,"Good tracks");
text->SetTextSize(0.05);
text->Draw();
+
+
+
+ TCanvas *c2=new TCanvas("c2","",320,32,530,590);
+
+ TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw();
+ p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10);
+ he->SetFillColor(2); he->SetFillStyle(3005);
+ he->SetXTitle("Arbitrary Units");
+ he->Fit("gaus"); c2->cd();
+
+ TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw();
+ p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10);
+ hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)");
+ hep->Draw(); c1->cd();
+
+
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff