void sim(Int_t nev=50) {
if (gSystem->Getenv("SIM_EVENTS"))
nev = atoi(gSystem->Getenv("SIM_EVENTS"));
printf("GENERATE << %d >> events \n",nev);
gROOT->LoadMacro("IpPion.C++") ;
AliSimulation simulator;
simulator.SetMakeSDigits("PHOS");
simulator.SetMakeDigits("PHOS");
//
// Ideal OCDB
// simulator.SetDefaultStorage("local://$ALICE_ROOT/OCDB");
simulator.SetDefaultStorage("local://./OCDB");
// simulator.SetSpecificStorage("GRP/GRP/Data",
// Form("local://%s",gSystem->pwd()));
// simulator.SetDefaultStorage("alien://Folder=/alice/simulation/2008/v4-15-Release/Ideal/");
//simulator.SetSpecificStorage("GRP/Calib/MeanVertexSPD", "alien://folder=/alice/data/2010/OCDB");
//PHOS bad map from RAW OCDB
simulator.SetSpecificStorage("PHOS/*/*/","local://./OCDB");
// simulator.SetSpecificStorage("PHOS/Calib/EmcBadChannels/","local://./OCDB");
// simulator.SetSpecificStorage("PHOS/Calib/EmcGainPedestals/","local://./OCDB");
simulator.SetRunHLT("");
//
simulator.SetSpecificStorage("GRP/GRP/Data", "alien://Folder=/alice/data/2010/OCDB");
AliPHOSSimParam *simParam = AliPHOSSimParam::GetInstance() ;
simParam->SetAPDNoise(0.000001) ;
simParam->SetCellNonLineairyA(0.001) ;
// simParam->SetCellNonLineairyA(0.1) ; //Default
simParam->SetCellNonLineairyB(0.2) ;
// simParam->SetCellNonLineairyC(0.989) ; //Jan4
// simParam->SetCellNonLineairyC(0.995) ; //Jan5 - 2GeV
simParam->SetCellNonLineairyC(1.031) ; //no NL
// Vertex and Mag.field from OCDB
// simulator.UseVertexFromCDB();
simulator.UseMagFieldFromGRP();
simulator.SetRunQA(":") ;
//
// The rest
TStopwatch timer;
timer.Start();
simulator.Run(nev);
timer.Stop();
timer.Print();
}
void Sim(const Int_t nevents=10,
const Int_t debLevel=0)
{
//make simulation of MC events and merging
//with previouly reconstructed Digits from
//raw event. We assume they are in dir "Bg"
AliPHOSSimParam * phosSimParam = AliPHOSSimParam::GetInstance() ;
AliLog::SetGlobalDebugLevel(debLevel);
AliSimulation sim;
sim.SetMakeSDigits("PHOS") ;
sim.SetMakeDigits("PHOS") ;
// sim.SetMakeDigitsFromHits("ITS TPC");
// sim.SetMakeTrigger("PHOS");
//Set path to reconstricted raw digits
//and set number of simulated events per one raw
sim.MergeWith("Bg/galice.root",1) ;
phosSimParam->SetStreamDigits(1) ; //Mark this stream as digits and not SDigits
sim.Run(nevents);
}
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
gSystem->Load("libpythia6"); // Pythia
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 == kPhojet) {
gener = MbPhojet();
}
// PRIMARY VERTEX
//
gener->SetOrigin(0., 0., 0.); // 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]
//
// 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
//
AliMagWrapCheb* field = 0x0;
if (mag == kNoField) {
comment = comment.Append(" | L3 field 0.0 T");
field = new AliMagWrapCheb("Maps","Maps", 2, 0., 10., AliMagWrapCheb::k2kG);
} else if (mag == k5kG) {
comment = comment.Append(" | L3 field 0.5 T");
field = new AliMagWrapCheb("Maps","Maps", 2, 1., 10., AliMagWrapCheb::k5kG);
}
printf("\n \n Comment: %s \n \n", comment.Data());
rl->CdGAFile();
gAlice->SetField(field);
Int_t iABSO = 1;
Int_t iACORDE= 0;
Int_t iDIPO = 1;
Int_t iEMCAL = 0;
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 = 0;
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 ============================
AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
AliTRDgeometry *geoTRD = TRD->GetGeometry();
// Partial geometry: modules at 0,8,9,17
// starting at 3h in positive direction
geoTRD->SetSMstatus(1,0);
geoTRD->SetSMstatus(2,0);
geoTRD->SetSMstatus(3,0);
geoTRD->SetSMstatus(4,0);
geoTRD->SetSMstatus(5,0);
geoTRD->SetSMstatus(6,0);
geoTRD->SetSMstatus(7,0);
geoTRD->SetSMstatus(10,0);
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", "SHISH_77_TRD1_2X2_FINAL_110DEG");
}
if (iACORDE)
{
//=================== ACORDE parameters ============================
AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
}
if (iVZERO)
{
//=================== ACORDE parameters ============================
AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
}
}
