+++ /dev/null
-void MUONtestabso (Int_t evNumber1=0,Int_t evNumber2=0)
-{
-/////////////////////////////////////////////////////////////////////////
-// This macro is a small example of a ROOT macro
-// illustrating how to read the output of GALICE
-// and do some analysis.
-//
-/////////////////////////////////////////////////////////////////////////
-
-// Dynamically link some shared libs
- static Float_t xmuon, ymuon;
-
- if (gClassTable->GetID("AliRun") < 0) {
- gROOT->LoadMacro("loadlibs.C");
- loadlibs();
- }
-
-// Connect the Root Galice file containing Geometry, Kine and Hits
-
- TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root");
-
-
- if (!file) {
- printf("\n Creating galice.root \n");
- file = new TFile("galice.root");
- } else {
- printf("\n galice.root found in file list");
- }
- file->ls();
-
-// Get AliRun object from file or create it if not on file
- if (!gAlice) {
- gAlice = (AliRun*)(file->Get("gAlice"));
- if (gAlice) printf("AliRun object found on file\n");
- if (!gAlice) {
- printf("\n Create new gAlice object");
- gAlice = new AliRun("gAlice","Alice test program");
- }
- }
-
-
-// Create some histograms
-
-
- TH1F *zv = new TH1F("zv","z vertex" ,140,470.,505.);
- TH1F *xv = new TH1F("xv","x vertex" ,140,-70.,70.);
- TH1F *yv = new TH1F("yv","y vertex", 140,-70.,70.);
-
- TH1F *ip = new TH1F("ip","geant part",50,0.,10.);
- TH2F *rzv = new TH2F("rzv","R-z vert",100,502,504.,100,0.,100.);
-
- TH1F *ptUps = new TH1F("ptUps","pT Upsilon",50,0.,25.);
- TH1F *hde = new TH1F("hde","dE",200,0.,50);
- TH1F *hde2 = new TH1F("hde2","dE",100,1.5,5.5);
- TH2F *hdevsn = new TH2F("hdevsn","dE vs N electron",100,0.,15., 20, 0.,20.);
-
- TH1F *ekine = new TH1F("ekine","E_kin electrons",70,-5,2);
- TH1F *etheta = new TH1F("etheta","Theta electrons",90,0,90);
- TH1F *edr = new TH1F("edr","Distance to muon",100,0,10);
-
- TH1F *de = new TH1F("de","correction",100,-1,1);
-
- TH1F *dtheta = new TH1F("dtheta","Delta Theta" ,200,-5.,5.);
- AliMUONChamber* iChamber;
-//
-// Loop over events
-//
- Int_t Nh=0;
- Int_t Nh1=0;
- Int_t Nel1=0;
- Int_t Nel2=0;
- Int_t Nel3=0;
- Int_t Nel4=0;
-
- for (Int_t nev=0; nev<= evNumber2; nev++) {
- //cout << "nev " << nev <<endl;
- Int_t nparticles = gAlice->GetEvent(nev);
- //cout << "nparticles " << nparticles <<endl;
- if (nev < evNumber1) continue;
- if (nparticles <= 0) return;
-
- AliMUON *MUON = (AliMUON*) gAlice->GetModule("MUON");
-
-
- TTree *TH = gAlice->TreeH();
- Int_t ntracks = TH->GetEntries();
-//
-// Loop over tracks
-//
-
- Float_t dE;
-
- for (Int_t track=0; track<ntracks;track++) {
- Int_t Nelt=0;
- printf("\n nev %d %d %d %d %d\n ", nev, Nel1, Nel2, Nel3, Nel4);
- gAlice->ResetHits();
- Int_t nbytes += TH->GetEvent(track);
- if (MUON) {
- for(AliMUONHit* mHit=(AliMUONHit*)MUON->FirstHit(-1);
- mHit;
- mHit=(AliMUONHit*)MUON->NextHit())
- {
- Int_t nch = mHit->fChamber; // chamber number
- Float_t x = mHit->fX; // x-pos of hit
- Float_t y = mHit->fY; // y-pos
- Float_t z = mHit->fZ; // y-pos
-
- if (nch != 1) continue;
-
- Int_t ipart = mHit->fParticle;
- TClonesArray *fPartArray = gAlice->Particles();
- TParticle *Part;
- Int_t ftrack = mHit->fTrack;
- Part = (TParticle*) fPartArray->UncheckedAt(ftrack);
- Int_t ipart = Part->GetPdgCode();
- ip->Fill((float)ipart);
- TParticle *Mother;
-
- Float_t px0=Part->Px();
- Float_t py0=Part->Py();
- Float_t pz0=Part->Pz();
- Float_t thetax0=TMath::ATan2(px0,pz0);
- Float_t thetay0=TMath::ATan2(py0,pz0);
-
- if (ipart == kMuonPlus || ipart == kMuonMinus) {
-// Int_t imo = Part->GetFirstMother();
-// Mother = (TParticle*) fPartArray->UncheckedAt(imo);
-// Float_t pt = Mother->Pt();
-// ptUps->Fill(pt, (float) 1);
- Float_t E=Part->Energy();
- Float_t Eloc=mHit->fPTot;
- Float_t corr=Eloc+CorrectP(Eloc,mHit->fTheta);
- printf("\n %f %f %f", E, Eloc, corr);
- de->Fill(E-corr,1.);
- dE = E-Eloc;
- if (dE<50) hde->Fill(dE, (float) 1);
- if (dE<5.5) hde2->Fill(dE, (float) 1);
- xmuon=mHit->fX;
- ymuon=mHit->fY;
- Float_t thetax=TMath::ATan2(mHit->Px(), mHit->Momentum());
- Float_t thetay=TMath::ATan2(mHit->Py(), mHit->Momentum());
- dtheta->Fill((thetax-thetax0)*1000., 1.);
- dtheta->Fill((thetay-thetay0)*1000., 1.);
- }
-
- if (ipart == kElectron || ipart == kPositron) {
-
-
- Float_t xvert = Part->Vx(); // vertex
- Float_t yvert = Part->Vy(); // vertex
- Float_t zvert = Part->Vz(); // z vertex
- if (zvert < 503 && mHit->fTheta<90) {
- Nelt++;
- Float_t px = Part->Px();
- Float_t py = Part->Py();
- Float_t pz = Part->Pz();
- Float_t Ek = Part->Energy()-Part->GetMass();
-
- Int_t imo = Part->GetFirstMother();
- Mother = (TParticle*) fPartArray->UncheckedAt(imo);
- Int_t imot = Mother->GetPdgCode();
- xv->Fill(xvert);
- yv->Fill(yvert);
- zv->Fill(zvert);
- Float_t rvert=TMath::Sqrt(xvert*xvert+yvert*yvert);
- rzv->Fill(zvert,rvert);
- ekine->Fill(TMath::Log10(Ek),1.);
- etheta->Fill(mHit->fTheta,1.);
- Float_t ex=mHit->fX;
- Float_t ey=mHit->fY;
- dr=TMath::Sqrt((ex-xmuon)*(ex-xmuon)+(ey-ymuon)*(ey-ymuon));
- edr->Fill(dr,1.);
-
- }
- }
-
- } // hits
- } // if MUON
- if (Nelt == 1) Nel1++;
- if (Nelt == 2) Nel2++;
- if (Nelt == 3) Nel3++;
- if (Nelt > 3) Nel4++;
- hdevsn->Fill(dE, (float) Nelt, (float) 1);
-
- } // tracks
-
- } // event
-
-
-//Create a canvas, set the view range, show histograms
- TCanvas *c1 = new TCanvas("c1","Vetices from electrons and positrons",400,10,600,700);
- c1->Divide(2,2);
-
- c1->cd(1);
- ip->SetFillColor(42);
- ip->SetXTitle("ipart");
- ip->Draw();
-
- c1->cd(2);
- xv->SetFillColor(42);
- xv->SetXTitle("xvert");
- xv->Draw();
-
- c1->cd(3);
- yv->SetFillColor(42);
- yv->SetXTitle("yvert");
- yv->Draw();
-
- c1->cd(4);
- zv->SetFillColor(42);
- zv->SetXTitle("zvert");
- zv->Draw();
-
- TCanvas *c2 = new TCanvas("c2"," ",400,10,600,700);
- c2->Divide(2,2);
- c2->cd(1);
- rzv->SetXTitle("zvert");
- rzv->SetYTitle("rvert");
- rzv->Draw();
-
- c2->cd(2);
- ptUps->SetXTitle("pt");
- ptUps->Draw();
-
- c2->cd(3);
- hde->SetXTitle("dE");
- hde->Draw();
-
-
- c2->cd(4);
- hde2->SetXTitle("dE");
- hde2->Draw();
- TCanvas *c3 = new TCanvas("c3"," ",400,10,600,700);
- c3->Divide(2,2);
- c3->cd(1);
- ekine->SetXTitle("E_kin");
- ekine->Draw();
-
- c3->cd(2);
- etheta->SetXTitle("Theta");
- etheta->Draw();
-
- c3->cd(3);
- edr->SetXTitle("Distance to muon");
- edr->Draw();
-
- c3->cd(4);
- dtheta->SetXTitle(" ");
- dtheta->Draw();
-
-}
-
-Float_t CorrectP(Float_t p, Float_t theta)
-{
- printf("\n %f%", theta);
-
- if (theta<3.) {
-//W
- if (p<15) {
- return 2.737+0.0494*p-0.001123*p*p;
- } else {
- return 3.0643+0.01346*p;
- }
- } else {
-//Pb
- if (p<15) {
- return 2.1380+0.0351*p-0.000853*p*p;
- } else {
- return 2.407+0.00702*p;
- }
- }
-}
-