Beispiel #1
0
Int_t RunHLTITS(Int_t nev=1,Int_t run=0) {

  //  gSystem->Load("libAliHLTITS");

  TStopwatch timer;
  timer.Start();

   if (gAlice) {
      delete gAlice->GetRunLoader();
      delete gAlice; 
      gAlice=0;
   }

   AliRunLoader *rl = AliRunLoader::Open("galice.root");
   if (rl == 0x0) {
      cerr<<"Can not open session"<<endl;
      return 1;
   }
   Int_t retval = rl->LoadgAlice();
   if (retval) {
      cerr<<"AliESDtest.C : LoadgAlice returned error"<<endl;
      delete rl;
      return 1;
   }
   retval = rl->LoadHeader();
   if (retval) {
      cerr<<"AliESDtest.C : LoadHeader returned error"<<endl;
      delete rl;
      return 2;
   }
   gAlice=rl->GetAliRun();
       
   AliTracker::SetFieldMap(gAlice->Field());

   AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
   if (itsl == 0x0) {
      cerr<<"AliESDtest.C : Can not get the ITS loader"<<endl;
      return 3;
   }
   itsl->LoadRecPoints("read");

   AliITS *dITS = (AliITS*)gAlice->GetDetector("ITS");
   if (!dITS) {
      cerr<<"AliESDtest.C : Can not find the ITS detector !"<<endl;
      return 4;
   }
   //   AliITSgeom *geom = dITS->GetITSgeom();
   AliITSgeom *geom = new AliITSgeom();
   geom->ReadNewFile("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymmFMD.det");

   //An instance of the HLT ITS tracker
   AliHLTITStracker itsTracker(geom);

   TFile *ef=TFile::Open("AliESDs.root");
   if (!ef || !ef->IsOpen()) {cerr<<"Can't AliESDs.root !\n"; return 1;}
   AliESD* event = new AliESD;
   TTree* tree = (TTree*) ef->Get("esdTree");
   if (!tree) {cerr<<"no ESD tree found\n"; return 1;};
   tree->SetBranchAddress("ESD", &event);

   TFile *itsf=TFile::Open("AliESDits.root","RECREATE");
   if ((!itsf)||(!itsf->IsOpen())) {
      cerr<<"Can't AliESDits.root !\n"; return 1;
   }

   Int_t rc=0;
   if (nev>rl->GetNumberOfEvents()) nev=rl->GetNumberOfEvents();
   //The loop over events
   for (Int_t i=0; i<nev; i++) {

     cerr<<"\n\nProcessing event number : "<<i<<endl;
     tree->GetEvent(i);
     rl->GetEvent(i);

     TArrayF v(3);     
     rl->GetHeader()->GenEventHeader()->PrimaryVertex(v);
     Double_t vtx[3]={v[0],v[1],v[2]};
     Double_t cvtx[3]={0.005,0.005,0.010};
     cout<<"MC vertex position: "<<v[2]<<endl;

     AliHLTITSVertexerZ vertexer("null");
     AliESDVertex* vertex = NULL;
     TStopwatch timer2;
     timer2.Start();
     TTree* treeClusters = itsl->TreeR();
     //     vertex = vertexer.FindVertexForCurrentEvent(i);
     //     AliESDVertex *vertex = vertexer.FindVertexForCurrentEvent(geom,treeClusters);
     vertex = new AliESDVertex(vtx,cvtx);
     timer2.Stop();
     timer2.Print();
     if(!vertex){
       cerr<<"Vertex not found"<<endl;
       vertex = new AliESDVertex(vtx,cvtx);
     }
     else {
       vertex->SetTruePos(vtx);  // store also the vertex from MC
     }

     event->SetVertex(vertex);

     Double_t vtxPos[3];
     Double_t vtxErr[3];
     vertex->GetXYZ(vtxPos);
     vertex->GetSigmaXYZ(vtxErr);
     itsTracker.SetVertex(vtxPos,vtxErr);

     TTree *itsTree=itsl->TreeR();
     if (!itsTree) {
       cerr<<"Can't get the ITS cluster tree !\n";
       return 4;
     }     
     itsTracker.LoadClusters(itsTree);
     rc+=itsTracker.Clusters2Tracks(event);
     //     rc+=itsTracker.PropagateBack(event);
     itsTracker.UnloadClusters();

     if (rc==0) {
       TTree* tree = new TTree("esdTree", "Tree with ESD objects");
       tree->Branch("ESD", "AliESD", &event);
       tree->Fill();
       itsf->cd();
       tree->Write();
     } 
     if (rc) {
       cerr<<"Something bad happened...\n";
     }

   }
   delete event;

   itsf->Close();
   ef->Close();

   //   delete rl;

   timer.Stop();
   timer.Print();

   return rc;
}
Beispiel #2
0
void Config()
{


  // Get settings from environment variables
  ProcessEnvironmentVars();

  gRandom->SetSeed(seed);
  cerr<<"Seed for random number generation= "<<seed<<endl;

  // Libraries required by geant321
#if defined(__CINT__)
  gSystem->Load("liblhapdf");      // Parton density functions
  gSystem->Load("libEGPythia6");   // TGenerator interface
  if (proc != kPythia6D6T) {
      gSystem->Load("libpythia6");     // Pythia 6.2
  } else {
      gSystem->Load("libqpythia");     // Pythia 6.4
  }
  gSystem->Load("libAliPythia6");  // ALICE specific implementations
  gSystem->Load("libgeant321");
#endif

  new TGeant3TGeo("C++ Interface to Geant3");

  //=======================================================================
  //  Create the output file


  AliRunLoader* rl=0x0;

  cout<<"Config.C: Creating Run Loader ..."<<endl;
  rl = AliRunLoader::Open("galice.root",
			  AliConfig::GetDefaultEventFolderName(),
			  "recreate");
  if (rl == 0x0)
    {
      gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
      return;
    }
  rl->SetCompressionLevel(2);
  rl->SetNumberOfEventsPerFile(1000);
  gAlice->SetRunLoader(rl);
  // gAlice->SetGeometryFromFile("geometry.root");
  // gAlice->SetGeometryFromCDB();

  // Set the trigger configuration: proton-proton
  gAlice->SetTriggerDescriptor("p-p"); 

  //
  //=======================================================================
  // ************* STEERING parameters FOR ALICE SIMULATION **************
  // --- Specify event type to be tracked through the ALICE setup
  // --- All positions are in cm, angles in degrees, and P and E in GeV


    gMC->SetProcess("DCAY",1);
    gMC->SetProcess("PAIR",1);
    gMC->SetProcess("COMP",1);
    gMC->SetProcess("PHOT",1);
    gMC->SetProcess("PFIS",0);
    gMC->SetProcess("DRAY",0);
    gMC->SetProcess("ANNI",1);
    gMC->SetProcess("BREM",1);
    gMC->SetProcess("MUNU",1);
    gMC->SetProcess("CKOV",1);
    gMC->SetProcess("HADR",1);
    gMC->SetProcess("LOSS",2);
    gMC->SetProcess("MULS",1);
    gMC->SetProcess("RAYL",1);

    Float_t cut = 1.e-3;        // 1MeV cut by default
    Float_t tofmax = 1.e10;

    gMC->SetCut("CUTGAM", cut);
    gMC->SetCut("CUTELE", cut);
    gMC->SetCut("CUTNEU", cut);
    gMC->SetCut("CUTHAD", cut);
    gMC->SetCut("CUTMUO", cut);
    gMC->SetCut("BCUTE",  cut);
    gMC->SetCut("BCUTM",  cut);
    gMC->SetCut("DCUTE",  cut);
    gMC->SetCut("DCUTM",  cut);
    gMC->SetCut("PPCUTM", cut);
    gMC->SetCut("TOFMAX", tofmax);

  //======================//
  // Set External decayer //
  //======================//
  TVirtualMCDecayer* decayer = new AliDecayerPythia();
  decayer->SetForceDecay(kAll);
  decayer->Init();
  gMC->SetExternalDecayer(decayer);

  //=========================//
  // Generator Configuration //
  //=========================//
  AliGenerator* gener = 0x0;

  if (proc == kPythia6) {
      gener = MbPythia();
  } else if (proc == kPythia6D6T) {
      gener = MbPythiaTuneD6T();
  } else if (proc == kPhojet) {
      gener = MbPhojet();
  } else if (proc == kFlatJPsi) {
      gener = FlatJPsi();
  } else if (proc == kJPsi7TeV) {
      gener = JPsi7TeV();
  }

  // PRIMARY VERTEX
  //
   Double_t xv = 0;
   Double_t yv = 0;
   Double_t zv = 0;

   Double_t vtxPos[3];
   Double_t vtxErr[3];
   for (Int_t i = 0; i < 3; i++) {
       vtxPos[i] = 0.;
       vtxErr[i] = 0.;
   }
   vtxErr[2] = 4.5;

   if(AliCDBManager::Instance()->IsDefaultStorageSet()){
      AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/Calib/MeanVertexSPD");
      AliESDVertex* vertex = dynamic_cast<AliESDVertex*> (entry->GetObject());
      vertex->GetXYZ(vtxPos);
      vertex->GetSigmaXYZ(vtxErr);
    }

    printf("Vertex position from OCDB entry: x = %13.3f, y = %13.3f, z = %13.3f (sigma = %13.3f)\n",
    vtxPos[0], vtxPos[1], vtxPos[2], vtxErr[2]);

  gener->SetOrigin(vtxPos[0], vtxPos[1] + 0.04, vtxPos[2]);   // vertex position
  //
  //
  // Size of the interaction diamond
  // Longitudinal
  Float_t sigmaz  = 5.4 / TMath::Sqrt(2.); // [cm]
  if (energy == 900)
    //sigmaz  = 10.5 / TMath::Sqrt(2.); // [cm]
    //sigmaz = 3.7;
  if (energy == 7000)
    sigmaz  = 6.3 / TMath::Sqrt(2.); // [cm]

    sigmaz = vtxErr[2];
  //
  // Transverse
  Float_t betast  = 10;                 // beta* [m]
  Float_t eps     = 3.75e-6;            // emittance [m]
  Float_t gamma   = energy / 2.0 / 0.938272;  // relativistic gamma [1]
  Float_t sigmaxy = TMath::Sqrt(eps * betast / gamma) / TMath::Sqrt(2.) * 100.;  // [cm]
  printf("\n \n Diamond size x-y: %10.3e z: %10.3e\n \n", sigmaxy, sigmaz);

  gener->SetSigma(sigmaxy, sigmaxy, sigmaz);      // Sigma in (X,Y,Z) (cm) on IP position
  gener->SetCutVertexZ(3.);        // Truncate at 3 sigma
  gener->SetVertexSmear(kPerEvent);
  gener->Init();

  // FIELD
  //
  AliMagF* field = 0x0;
  if (mag == kNoField) {
    comment = comment.Append(" | L3 field 0.0 T");
    field = new AliMagF("Maps","Maps", 0., 0., AliMagF::k5kGUniform,AliMagF::kBeamTypepp, energy/2.0);
  } else if (mag == k5kG) {
    comment = comment.Append(" | L3 field 0.5 T");
    field = new AliMagF("Maps","Maps", -1., -1., AliMagF::k5kG,	AliMagF::kBeamTypepp, energy/2.0);
  }

  printf("\n \n Comment: %s \n \n", comment.Data());

  TGeoGlobalMagField::Instance()->SetField(field);

  rl->CdGAFile();

  Int_t iABSO  = 1;
  Int_t iACORDE= 0;
  Int_t iDIPO  = 1;
  Int_t iEMCAL = 1;
  Int_t iFMD   = 1;
  Int_t iFRAME = 1;
  Int_t iHALL  = 1;
  Int_t iITS   = 1;
  Int_t iMAG   = 1;
  Int_t iMUON  = 1;
  Int_t iPHOS  = 1;
  Int_t iPIPE  = 1;
  Int_t iPMD   = 1;
  Int_t iHMPID = 1;
  Int_t iSHIL  = 1;
  Int_t iT0    = 1;
  Int_t iTOF   = 1;
  Int_t iTPC   = 1;
  Int_t iTRD   = 1;
  Int_t iVZERO = 1;
  Int_t iZDC   = 1;


    //=================== Alice BODY parameters =============================
    AliBODY *BODY = new AliBODY("BODY", "Alice envelop");


    if (iMAG)
    {
        //=================== MAG parameters ============================
        // --- Start with Magnet since detector layouts may be depending ---
        // --- on the selected Magnet dimensions ---
        AliMAG *MAG = new AliMAG("MAG", "Magnet");
    }


    if (iABSO)
    {
        //=================== ABSO parameters ============================
        AliABSO *ABSO = new AliABSOv3("ABSO", "Muon Absorber");
    }

    if (iDIPO)
    {
        //=================== DIPO parameters ============================

        AliDIPO *DIPO = new AliDIPOv3("DIPO", "Dipole version 3");
    }

    if (iHALL)
    {
        //=================== HALL parameters ============================

        AliHALL *HALL = new AliHALLv3("HALL", "Alice Hall");
    }


    if (iFRAME)
    {
        //=================== FRAME parameters ============================

        AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
	FRAME->SetHoles(1);
    }

    if (iSHIL)
    {
        //=================== SHIL parameters ============================

        AliSHIL *SHIL = new AliSHILv3("SHIL", "Shielding Version 3");
    }


    if (iPIPE)
    {
        //=================== PIPE parameters ============================

        AliPIPE *PIPE = new AliPIPEv3("PIPE", "Beam Pipe");
    }

    if (iITS)
    {
        //=================== ITS parameters ============================

	AliITS *ITS  = new AliITSv11Hybrid("ITS","ITS v11Hybrid");
    }

    if (iTPC)
    {
      //============================ TPC parameters =====================

        AliTPC *TPC = new AliTPCv2("TPC", "Default");
    }


    if (iTOF) {
        //=================== TOF parameters ============================

	AliTOF *TOF = new AliTOFv6T0("TOF", "normal TOF");
    }


    if (iHMPID)
    {
        //=================== HMPID parameters ===========================

        AliHMPID *HMPID = new AliHMPIDv3("HMPID", "normal HMPID");

    }


    if (iZDC)
    {
        //=================== ZDC parameters ============================

        AliZDC *ZDC = new AliZDCv3("ZDC", "normal ZDC");
    }

    if (iTRD)
    {
        //=================== TRD parameters ============================
            // 7 TRDs only : 0, 1, 7, 8, 9, 10, 17
        AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
        AliTRDgeometry *geoTRD = TRD->GetGeometry();
	// Partial geometry: modules at 0,1,7,8,9,16,17
	// starting at 3h in positive direction
	geoTRD->SetSMstatus(2,0);
	geoTRD->SetSMstatus(3,0);
	geoTRD->SetSMstatus(4,0);
        geoTRD->SetSMstatus(5,0);
	geoTRD->SetSMstatus(6,0);
        geoTRD->SetSMstatus(11,0);
        geoTRD->SetSMstatus(12,0);
        geoTRD->SetSMstatus(13,0);
        geoTRD->SetSMstatus(14,0);
        geoTRD->SetSMstatus(15,0);
        geoTRD->SetSMstatus(16,0);
    }

    if (iFMD)
    {
        //=================== FMD parameters ============================

	AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
   }

    if (iMUON)
    {
        //=================== MUON parameters ===========================
        // New MUONv1 version (geometry defined via builders)

        AliMUON *MUON = new AliMUONv1("MUON", "default");
    }

    if (iPHOS)
    {
        //=================== PHOS parameters ===========================

        AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
        //Set simulation parameters different from the default ones.
        AliPHOSSimParam* simEmc = AliPHOSSimParam::GetInstance() ;

        // APD noise of warm (+20C) PHOS:
        // a2 = a1*(Y1/Y2)*(M1/M2), where a1 = 0.012 is APD noise at -25C,
        // Y1 = 4.3 photo-electrons/MeV, Y2 = 1.7 p.e/MeV - light yields at -25C and +20C,
        // M1 = 50, M2 = 50 - APD gain factors chosen for t1 = -25C and t2 = +20C,
        // Y = MeanLightYield*APDEfficiency.

        Float_t apdNoise = 0.012*2.5;
        simEmc->SetAPDNoise(apdNoise);

        //Raw Light Yield at +20C
        simEmc->SetMeanLightYield(18800);

        //ADC channel width at +18C.
        simEmc->SetADCchannelW(0.0125);
    }


    if (iPMD)
    {
        //=================== PMD parameters ============================

        AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
    }

    if (iT0)
    {
        //=================== T0 parameters ============================
        AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
    }

    if (iEMCAL)
    {
        //=================== EMCAL parameters ============================

        AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_COMPLETE");
    }

     if (iACORDE)
    {
        //=================== ACORDE parameters ============================

        AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
    }

     if (iVZERO)
    {
        //=================== ACORDE parameters ============================

        AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
    }
}