+++ /dev/null
-Bool_t SelectThis(AliMUONHit* mHit);
-
-Bool_t SelectThis(Float_t x, Float_t y, Float_t d)
-{
-// Float_t x = mHit->X(); // x-pos
-// Float_t y = mHit->Y(); // y-pos
- if (TMath::Abs(x) > d/2. && TMath::Abs(y) > d/2.) {
- return 1;
- } else {
- return 0;
- }
-}
-
-Bool_t SelectThat(Float_t x, Float_t y, Float_t d)
-{
- const Float_t phi0=60.*TMath::Pi()/180.;
-
- if (y<0.) return 1;
- if (x<0.) x=-x;
-
- Float_t phi = TMath::ATan2(y,x);
- Float_t dist = TMath::Sin(phi0-phi)*TMath::Sqrt(x*x+y*y);
- if (TMath::Abs(dist) > d) {
- return 1;
- } else {
- return 0 ;
- }
-}
-
-void MUONacc (Float_t d=3., Int_t evNumber1=0, Int_t evNumber2=0)
-{
-// Dynamically link some shared libs
- Float_t rmin[14] = {17.5, 17.5, 23.5, 23.5, 33.5, 33.5, 43., 43., 50., 50,
- 56.1, 56.1, 59.6, 59.6};
- Float_t rmax[14] = {91.5, 91.5, 122.5, 122.5, 158.3, 158.3, 260.0,
- 260.0, 260.0, 260.0, 293., 293, 293., 293.};
-
-
- 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();
-//
- TDatabasePDG* DataBase = new TDatabasePDG();
-
-// 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 *theta = new TH1F("theta","Theta distribution",180,0,180);
- TH1F *emult = new TH1F("emult","Event Multiplicity",100,0,1000);
- TH2F *supp = new TH2F("supp", "Diselected",100, -200., 200, 100, -200., 200.);
-
- AliMUONChamber* iChamber;
- AliSegmentation* seg;
-
-//
-// Loop over events
-//
-
- for (Int_t nev=0; nev<= evNumber2; nev++) {
- Int_t nparticles = gAlice->GetEvent(nev);
- if (nev < evNumber1) continue;
- if (nparticles <= 0) return;
-
- AliMUON *MUON = (AliMUON*) gAlice->GetModule("MUON");
-
-
- TTree *TH = gAlice->TreeH();
- Int_t ntracks = TH->GetEntries();
- TClonesArray *fPartArray = gAlice->Particles();
- Int_t npart = fPartArray->GetEntriesFast();
-
- Int_t EvMult=0;
- Int_t Nsel=0;
-//
-// Loop over primary particles (jpsi. upsilon, ...)
-//
- Int_t prim=0;
-
- for (Int_t part=0; part<30000; part+=3) {
- TParticle *MPart = gAlice->Particle(part);
- Int_t mpart = MPart->GetPdgCode();
- Int_t child1 = MPart->GetFirstDaughter();
- Int_t child2 = MPart->GetLastDaughter();
- Int_t mother = MPart->GetFirstMother();
-//
-// Loop over muons
-//
- Int_t muon1=2*prim;
- Int_t muon2=muon1+1;
-
-// printf("\n PDG Code %d %d %d %d %d %d %d %d \n",
-// part, mpart, child1, child2, mother,prim, muon1,muon2);
-
-
- Bool_t selected[2]={1,1};
- Int_t muons=0;
- for (Int_t track=muon1; track<=muon2;track++) {
- gAlice->ResetHits();
- Int_t nbytes += TH->GetEvent(track);
-
- if (MUON) {
-//
-// Loop over hits
-//
- for(AliMUONHit* mHit=(AliMUONHit*)MUON->FirstHit(-1);
- mHit;
- mHit=(AliMUONHit*)MUON->NextHit())
- {
- Int_t nch = mHit->Chamber(); // chamber number
- Float_t x = mHit->X(); // x-pos of hit
- Float_t y = mHit->Y(); // y-pos
- Float_t z = mHit->Z(); // z-pos
- Float_t Eloss = mHit->Eloss(); // energy loss
- Float_t Theta = mHit->Theta(); // theta
- Float_t Particle = mHit->Particle(); // Particle type
- Int_t itrack = Int_t(mHit->Track());
-
- TParticle *thePart = gAlice->Particle(itrack);
- Float_t pTheta=thePart->Theta();
-
- if (Particle != kMuonPlus && Particle != kMuonMinus) continue;
-
- Float_t P = mhit->Momentum();
- Float_t R = TMath::Sqrt(x*x+y*y);
- TParticlePDG* Part = DataBase->GetParticle(Particle);
- Double_t mass = Part->Mass();
- theta->Fill(pTheta*180./TMath::Pi(),1.);
-
- if (nch>14) continue;
-// printf("\n %f %f %f %d\n ", R, rmin[nch-1], rmax[nch-1], nch);
-// Geometrical acceptance of frames
-// selected[muons] = selected[muons]&&SelectThis(x,y,d);
-// Cut on default rmin and rmax
-// selected[muons] = selected[muons] &&( R > rmin[nch-1] && R < rmax[nch-1]);
-// Cut on rmin
-// selected[muons] = selected[muons] &&( R > rmin[nch-1]);
-// Cut on rmax
-// selected[muons] = selected[muons] &&( R < rmax[nch-1]);
-// selected[muons] = selected[muons] &&( R > z*TMath::Tan(2.0*TMath::Pi()/180.));
-// Bool_t ok = (z<970 && ( R > z*TMath::Tan(2.0*TMath::Pi()/180.))) ||
-// (z>970 && ( R > 970 * TMath::Tan(2.0*TMath::Pi()/180.)
-// +(z-970)* TMath::Tan(1.6*TMath::Pi()/180.)));
-//
-// Bool_t ok = (z<970 && ( R < z*TMath::Tan(9.0*TMath::Pi()/180.))) ||
-// (z>970 && ( R < 970 * TMath::Tan(9.0*TMath::Pi()/180.)
-// +(z-970)* TMath::Tan(12.0*TMath::Pi()/180.)));
- if (nch == 4 || nch == 7) {
- Bool_t ok = SelectThat(x,y,d);
- } else {
- Bool_t ok = kTRUE;
- }
-
-
- selected[muons] = selected[muons] && ok;
- if (!ok) {
- supp->Fill(x,y,1.);
-
- }
-
-
- } // hit loop
- } // if MUON
- muons++;
- } // track loop
- if (selected[0] && selected[1]) Nsel++;
- prim++;
- } // primary loop
- printf("\n Selected %d %d \n", Nsel, prim);
- }
-
-//Create a canvas, set the view range, show histograms
- Int_t k;
- TCanvas *c1 = new TCanvas("c1","Canvas 1",400,10,600,700);
- c1->Divide(2,2);
- c1->cd(1);
- theta->Draw();
- c1->cd(2);
- supp->Draw();
-
-}
-
-
-
-
-
-
-
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff