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GeneratorConfig.C
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/*
* AliDPG - ALICE Experiment Data Preparation Group
* Generator configuration script
*
*/
enum EGenerator_t {
kGeneratorDefault,
// Pythia6
kGeneratorPythia6, kGeneratorPythia6_Perugia2011,
// Pythia8
kGeneratorPythia8, kGeneratorPythia8_Monash2013,
// Pythia8 jets
kGeneratorPythia8Jets, kGeneratorPythia8Jets_Monash2013,
// Phojet
kGeneratorPhojet, kGeneratorDpmjet,
// EPOS-LHC
kGeneratorEPOSLHC, kGeneratorEPOSLHC_pp, kGeneratorEPOSLHC_PbPb,
// Hijing
kGeneratorHijing,
// Starlight
kGeneratorStarlight,
// AMPT
kGeneratorAMPT,
//
kGeneratorCustom,
//
kGeneratorPWG,
kNGenerators
};
const Char_t *GeneratorName[kNGenerators] = {
"Default",
// Pythia6
"Pythia6", "Pythia6_Perugia2011",
// Pythia8
"Pythia8", "Pythia8_Monash2013",
// Pythia8 jets
"Pythia8Jets", "Pythia8Jets_Monash2013",
// Phijet / DPMjet
"Phojet", "Dpmjet",
// EPOS-LHC
"EPOSLHC", "EPOSLHC_pp", "EPOSLHC_PbPb",
// Hijing
"Hijing",
// Starlight
"Starlight",
// AMPT
"AMPT",
//
"Custom",
//
"PWG"
};
enum ETrigger_t {
kTriggerDefault,
kTriggerPP,
kTriggerPbPb,
kTriggerCustom,
kNTriggers
};
const Char_t *TriggerName[kNTriggers] = {
"ocdb",
"p-p",
"Pb-Pb",
"Custom.cfg"
};
enum EPythia6Tune_t {
kPythia6Tune_Perugia0 = 320,
kPythia6Tune_Perugia2011 = 350
};
enum EPythia8Tune_t {
kPythia8Tune_Monash2013 = 14
};
enum EPythia6HeavyProcess_t {
kPythia6HeavyProcess_Charm,
kPythia6HeavyProcess_Beauty
};
enum EPythia6HeavyDecay_t {
kPythia6HeavyDecay_Hadrons,
kPythia6HeavyDecay_HadronsWithV0,
kPythia6HeavyDecay_Electron
};
/*****************************************************************/
/*****************************************************************/
/*****************************************************************/
// functions
AliGenerator *GeneratorCocktail(TString name);
AliGenerator *GeneratorInjector(Int_t ninj, Int_t pdg, Float_t ptmin, Float_t ptmax, Float_t ymin, Float_t ymax, Float_t phimin = 0., Float_t phimax = 360.);
AliGenerator *GeneratorPythia6(Int_t tune = 0, Int_t pdgtrig = 0, Float_t etatrig = 1.2);
AliGenerator *GeneratorPythia6Heavy(Int_t process, Int_t decay, Int_t tune = 0, Bool_t HFonly = kTRUE);
AliGenerator *GeneratorPythia8(Int_t tune = 0, Int_t pdgtrig = 0, Float_t etatrig = 1.2);
AliGenerator *GeneratorPythia8Jets(Int_t tune = 0);
AliGenerator *GeneratorPhojet();
AliGenerator *GeneratorEPOSLHC();
AliGenerator *GeneratorHijing();
AliGenerator *Generator_Jpsiee(const Char_t *params, Float_t jpsifrac, Float_t lowfrac, Float_t highfrac, Float_t bfrac);
AliGenerator *Generator_Nuclex(UInt_t injbit, Bool_t antiparticle, Int_t ninj);
AliGenerator *GeneratorStarlight();
AliGenerator *GeneratorAMPT();
/*****************************************************************/
// global variables
static TString comment;
/*****************************************************************/
GeneratorConfig(Int_t tag)
{
AliGenerator *gen = NULL;
switch (tag) {
// Default
case kGeneratorDefault:
abort();
return;
// Pythia6 (Perugia2011)
case kGeneratorPythia6:
case kGeneratorPythia6_Perugia2011:
gen = GeneratorPythia6(kPythia6Tune_Perugia2011);
break;
// Pythia8 (Monash2013)
case kGeneratorPythia8:
case kGeneratorPythia8_Monash2013:
gen = GeneratorPythia8(kPythia8Tune_Monash2013);
break;
// Pythia8Jets (Monash2013)
case kGeneratorPythia8Jets:
case kGeneratorPythia8Jets_Monash2013:
gen = GeneratorPythia8Jets(kPythia8Tune_Monash2013);
break;
// Phojet / DPMjet
case kGeneratorPhojet:
case kGeneratorDpmjet:
gen = GeneratorPhojet();
break;
// EPOSLHC
case kGeneratorEPOSLHC:
case kGeneratorEPOSLHC_pp:
case kGeneratorEPOSLHC_PbPb:
gen = GeneratorEPOSLHC();
break;
// Hijing
case kGeneratorHijing:
gen = GeneratorHijing();
break;
// Starlight
case kGeneratorStarlight:
gen = GeneratorStarlight();
break;
// AMPT
case kGeneratorAMPT:
gen = GeneratorAMPT();
break;
// Custom
case kGeneratorCustom:
if ((gROOT->LoadMacro("GeneratorCustom.C")) != 0) {
printf("ERROR: cannot find GeneratorCustom.C\n");
abort();
return;
}
gen = GeneratorCustom();
break;
// PWG
case kGeneratorPWG:
TString genstr = gSystem->Getenv("CONFIG_GENERATOR");
TObjArray *oa = genstr.Tokenize(":");
TObjString *pwg = oa->At(0);
TObjString *pwggen = oa->At(1);
TObjString *pwgopt = oa->At(2);
if (!pwg || !pwggen) {
printf("ERROR: problem parsing CONFIG_GENERATOR: %s \n", genstr.Data());
abort();
return;
}
// load PWG custom generator macro
TString pwgmacro = "$ALIDPG_ROOT/MC/CustomGenerators/";
pwgmacro += pwg->GetString();
pwgmacro += "/";
pwgmacro += pwggen->GetString();
pwgmacro += ".C";
if ((gROOT->LoadMacro(pwgmacro.Data())) != 0) {
printf("ERROR: cannot find %s \n", pwgmacro.Data());
abort();
return;
}
if (pwgopt)
gen = GeneratorCustom(pwgopt->String());
else
gen = GeneratorCustom();
break;
}
// default diamond parameters
Float_t betast = 10.; // beta* [m]
if (runNumber >= 117048) betast = 2.;
if (runNumber > 122375) betast = 3.5; // starting with fill 1179
Float_t eps = 5.e-6; // emittance [m]
Float_t gamma = energyConfig / 2.0 / 0.938272; // relativistic gamma [1]
Float_t sigmaxy = TMath::Sqrt(eps * betast / gamma) / TMath::Sqrt(2.) * 100.; // LHC period specific
if (gSystem->Getenv("CONFIG_PERIOD")) {
TString periodName = gSystem->Getenv("CONFIG_PERIOD");
if (periodName.EqualTo("LHC10h")) sigmaxy = 80.e-4;
if (periodName.EqualTo("LHC11a")) sigmaxy = 120.e-4;
if (periodName.EqualTo("LHC11h")) sigmaxy = 110.e-4;
if (periodName.EqualTo("LHC13b")) sigmaxy = 35.e-4;
if (periodName.EqualTo("LHC13c")) sigmaxy = 35.e-4;
if (periodName.EqualTo("LHC13d")) sigmaxy = 35.e-4;
if (periodName.EqualTo("LHC13e")) sigmaxy = 35.e-4;
if (periodName.EqualTo("LHC15n")) sigmaxy = 90.e-4;
if (periodName.EqualTo("LHC15o")) sigmaxy = 30.e-4;
//
if (periodName.EqualTo("LHC16f")) sigmaxy = 60.e-4;
if (periodName.EqualTo("LHC16g")) sigmaxy = 60.e-4;
if (periodName.EqualTo("LHC16i")) sigmaxy = 60.e-4;
if (periodName.EqualTo("LHC16k")) sigmaxy = 45.e-4;
if (periodName.EqualTo("LHC16l")) sigmaxy = 45.e-4;
if (periodName.EqualTo("LHC16o")) sigmaxy = 55.e-4;
if (periodName.EqualTo("LHC16p")) sigmaxy = 50.e-4;
if (periodName.EqualTo("LHC16q")) sigmaxy = 35.e-4;
if (periodName.EqualTo("LHC16r")) sigmaxy = 25.e-4;
if (periodName.EqualTo("LHC16s")) sigmaxy = 25.e-4;
if (periodName.EqualTo("LHC16t")) sigmaxy = 35.e-4;
}
printf(">>>>> Diamond sigma-xy: %f \n", sigmaxy);
gen->SetOrigin(0., 0., 0.);
gen->SetSigma(sigmaxy, sigmaxy, 5.);
gen->SetVertexSmear(kPerEvent);
gen->Init();
printf(">>>>> Generator Configuration: %s \n", comment.Data());
// Set the trigger configuration: proton-proton
AliSimulation::Instance()->SetTriggerConfig(TriggerName[triggerConfig]);
printf(">>>>> Trigger configuration: %s \n", TriggerName[triggerConfig]);
}
/*** PYTHIA 6 ****************************************************/
AliGenerator *
GeneratorPythia6(Int_t tune, Int_t pdgtrig, Float_t etatrig)
{
comment = comment.Append(" | Pythia6 low-pt");
//
// Pythia
AliGenPythia* pythia = new AliGenPythia(-1);
pythia->SetMomentumRange(0, 999999.);
pythia->SetThetaRange(0., 180.);
pythia->SetYRange(-12.,12.);
pythia->SetPtRange(0,1000.);
pythia->SetProcess(kPyMb);
pythia->SetEnergyCMS(energyConfig);
pythia->SetCrossingAngle(0,crossingConfig);
//
// Tune
if (tune > 0) {
comment = comment.Append(Form(" | tune %d", tune));
pythia->SetTune(tune);
// pythia->UseNewMultipleInteractionsScenario();
}
//
// Trigger particles
if (pdgtrig != 0) {
comment = comment.Append(Form(" | %s enhanced", TDatabasePDG::Instance()->GetParticle(pdgtrig)->GetName()));
pythia->SetTriggerParticle(pdgtrig, etatrig);
}
//
return pythia;
}
/*** PYTHIA 6 ****************************************************/
AliGenerator *
GeneratorPythia6Heavy(Int_t process, Int_t decay, Int_t tune, Bool_t HFonly)
{
//
//
comment = comment.Append(Form(" | Pythia6 heavy (%d, %d)", process, decay));
//
// set external decayer
if (decay == kPythia6HeavyDecay_Electron) {
TVirtualMCDecayer* decayer = new AliDecayerPythia();
decayer->SetForceDecay(kAll);
decayer->Init();
gMC->SetExternalDecayer(decayer);
}
//
// Pythia
AliGenPythia *pythia = GeneratorPythia6(tune);
//
// heavy process
switch (process) {
case kPythia6HeavyProcess_Charm:
pythia->SetProcess(kPyCharmppMNRwmi);
break;
case kPythia6HeavyProcess_Beauty:
pythia->SetProcess(kPyBeautyppMNRwmi);
break;
}
//
// heavy decay
switch (decay) {
case kPythia6HeavyDecay_Hadrons:
pythia->SetHeavyQuarkYRange(-1.5, 1.5);
pythia->SetForceDecay(kHadronicDWithout4Bodies);
break;
case kPythia6HeavyDecay_HadronsWithV0:
pythia->SetHeavyQuarkYRange(-1.5, 1.5);
pythia->SetForceDecay(kHadronicDWithout4BodiesWithV0);
break;
case kPythia6HeavyDecay_Electron:
pythia->SetCutOnChild(1);
pythia->SetPdgCodeParticleforAcceptanceCut(11);
pythia->SetChildYRange(-1.2, 1.2);
pythia->SetChildPtRange(0, 10000.);
break;
}
//
if (HFonly)
pythia->SetStackFillOpt(AliGenPythia::kHeavyFlavor);
return pythia;
}
/*** PYTHIA 8 ****************************************************/
AliGenerator *
GeneratorPythia8(Int_t tune, Int_t pdgtrig, Float_t etatrig)
{
//
// Libraries
gSystem->Load("libpythia8.so");
gSystem->Load("libAliPythia8.so");
//
// Environment settings
gSystem->Setenv("PYTHIA8DATA", gSystem->ExpandPathName("$ALICE_ROOT/PYTHIA8/pythia8/xmldoc"));
gSystem->Setenv("LHAPDF", gSystem->ExpandPathName("$ALICE_ROOT/LHAPDF"));
gSystem->Setenv("LHAPATH", gSystem->ExpandPathName("$ALICE_ROOT/LHAPDF/PDFsets"));
//
//
comment = comment.Append(" | Pythia8 low-pt");
//
// Pythia
AliGenPythiaPlus *pythia = new AliGenPythiaPlus(AliPythia8::Instance());
pythia->SetMomentumRange(0, 999999.);
pythia->SetThetaRange(0., 180.);
pythia->SetYRange(-12.,12.);
pythia->SetPtRange(0,1000.);
pythia->SetProcess(kPyMbDefault); // pythia->SetProcess(kPyMb);
pythia->SetEnergyCMS(energyConfig);
pythia->SetCrossingAngle(0, crossingConfig);
//
// Initialize
pythia->SetEventListRange(-1, 2);
(AliPythia8::Instance())->ReadString("Random:setSeed = on");
(AliPythia8::Instance())->ReadString(Form("Random:seed = %ld", seedConfig % 900000000));
(AliPythia8::Instance())->ReadString("111:mayDecay = on");
//
// Tune
if (tune > 0) {
comment = comment.Append(Form(" | tune %d", tune));
pythia->SetTune(tune);
}
//
// Trigger particles
if (pdgtrig != 0) {
comment = comment.Append(Form(" | %s enhanced", TDatabasePDG::Instance()->GetParticle(pdgtrig)->GetName()));
pythia->SetTriggerParticle(pdgtrig, etatrig);
}
//
return pythia;
}
/*** PYTHIA 8 JETS ***********************************************/
AliGenerator *
GeneratorPythia8Jets(Int_t tune)
{
//
//
comment = comment.Append(Form(" | Pythia8 jets (%.1f, %.1f, %d, %.1f)", pthardminConfig, pthardmaxConfig, quenchingConfig, qhatConfig));
//
// Pythia
AliGenPythiaPlus *pythia = GeneratorPythia8(tune);
//
// jets settings
pythia->SetProcess(kPyJets);
pythia->SetJetEtaRange(-1.5, 1.5); // Final state kinematic cuts
pythia->SetJetPhiRange(0., 360.);
pythia->SetJetEtRange(5., 1000.);
pythia->SetPtHard(pthardminConfig, pthardmaxConfig); // Pt transfer of the hard scattering
pythia->SetStrucFunc(kCTEQ5L);
// quenching
pythia->SetQuench(quenchingConfig);
switch (quenchingConfig) {
case 1:
Float_t k = 6.e5 * (qhatConfig / 1.7); //qhat=1.7, k=6e5, default value
AliPythia8::Instance()->InitQuenching(0., 0.1, k, 0, 0.95, 6);
break;
case 2:
pythia->SetPyquenPar(1.,0.1,0,0,1);
break;
}
//
return pythia;
}
/*** PHOJET ****************************************************/
AliGenerator *
GeneratorPhojet()
{
//
// Libraries
// gSystem->Load("libDPMJET");
// gSystem->Load("libTDPMjet");
//
comment = comment.Append(" | Phojet/DPMjet low-pt");
//
// DPMJET
AliGenDPMjet* dpmjet = new AliGenDPMjet(-1);
dpmjet->SetMomentumRange(0, 999999.);
dpmjet->SetThetaRange(0., 180.);
dpmjet->SetYRange(-12.,12.);
dpmjet->SetPtRange(0,1000.);
dpmjet->SetProcess(kDpmMb);
dpmjet->SetEnergyCMS(energyConfig);
dpmjet->SetCrossingAngle(0,crossingConfig);
// projectile-target
if (systemConfig.EqualTo("Pb-Pb")) {
dpmjet->SetProjectile("A", 208, 82);
dpmjet->SetTarget ("A", 208, 82);
dpmjet->SetImpactParameterRange(bminConfig, bmaxConfig);
}
else if (systemConfig.EqualTo("p-Pb")) {
dpmjet->SetProjectile("P", 1, 1);
dpmjet->SetTarget ("A", 208, 82);
dpmjet->SetProjectileBeamEnergy(0.5 * energyConfig * TMath::Sqrt(208./82.));
dpmjet->SetImpactParameterRange(bminConfig, bmaxConfig);
dpmjet->SetFragmentProd(kFALSE);
if (processConfig.Contains("fragments"))
dpmjet->SetFragmentProd(kTRUE);
}
else if (systemConfig.EqualTo("Pb-p")) {
dpmjet->SetProjectile("A", 208, 82);
dpmjet->SetTarget ("P", 1, 1);
dpmjet->SetProjectileBeamEnergy(0.5 * energyConfig * TMath::Sqrt(82./208.));
dpmjet->SetImpactParameterRange(bminConfig, bmaxConfig);
dpmjet->SetFragmentProd(kFALSE);
if (processConfig.Contains("fragments"))
dpmjet->SetFragmentProd(kTRUE);
}
return dpmjet;
}
/*** EPOSLHC ****************************************************/
AliGenerator *
GeneratorEPOSLHC()
{
comment = comment.Append(Form(" | EPOS-LHC (%s)", systemConfig.Data()));
//
// configure projectile/target
Int_t projectileId = 0; // PDG or Z*10000+A*10
Float_t projectileEnergy = 0.; // momentum/(GeV/c)
Int_t targetId = 0;
Float_t targetEnergy = 0;
// pp
if (systemConfig.EqualTo("p-p")) {
projectileId = 2212;
targetId = projectileId;
projectileEnergy = energyConfig / 2.;
targetEnergy = energyConfig / 2.;
}
// PbPb
else if (systemConfig.EqualTo("Pb-Pb")) {
projectileId = 82*10000 + 208*10;
targetId = projectileId;
projectileEnergy = energyConfig / 2.;
targetEnergy = energyConfig / 2.;
}
// pPb
else if (systemConfig.EqualTo("p-Pb")) {
projectileId = 2212;
targetId = 82*10000 + 208*10;
projectileEnergy = 0.5 * energyConfig * TMath::Sqrt(208./82.);
targetEnergy = 0.5 * energyConfig * TMath::Sqrt(82./208.);
}
// Pbp
else if (systemConfig.EqualTo("Pb-p")) {
projectileId = 82*10000 + 208*10;
targetId = 2212;
projectileEnergy = 0.5 * energyConfig * TMath::Sqrt(82./208.);
targetEnergy = 0.5 * energyConfig * TMath::Sqrt(208./82.);
}
// not implemented
else {
printf("EPOSLHC not implemented for %s system\n", systemConfig.Data());
abort();
}
//
// run CRMC
TString fifoname = "crmceventfifo";
gROOT->ProcessLine(Form(".! rm -rf %s", fifoname.Data()));
gROOT->ProcessLine(Form(".! mkfifo %s", fifoname.Data()));
gROOT->ProcessLine(Form(".! sh $ALIDPG_ROOT/MC/EXTRA/gen_eposlhc.sh %s %d %d %f %d %f &> gen_eposlhc.log &",
fifoname.Data(), neventsConfig,
projectileId, projectileEnergy,
targetId, targetEnergy));
//
// connect HepMC reader
AliGenReaderHepMC *reader = new AliGenReaderHepMC();
reader->SetFileName("crmceventfifo");
AliGenExtFile *gener = new AliGenExtFile(-1);
gener->SetName(Form("EPOSLHC_%s", systemConfig.Data()));
gener->SetReader(reader);
return gener;
}
/*** HIJING ****************************************************/
AliGenerator *
GeneratorHijing()
{
//
// Libraries
gSystem->Load("libHIJING");
gSystem->Load("libTHijing");
comment = comment.Append(Form(" | HIJING (b = %f-%f fm)", bminConfig, bmaxConfig));
AliGenHijing *gener = new AliGenHijing(-1);
// centre of mass energy
gener->SetEnergyCMS(energyConfig);
gener->SetImpactParameterRange(bminConfig, bmaxConfig);
// reference frame
gener->SetReferenceFrame("CMS");
// projectile-target
if (systemConfig.EqualTo("Pb-Pb")) {
gener->SetProjectile("A", 208, 82);
gener->SetTarget ("A", 208, 82);
gener->SetSpectators(0);
}
else if (systemConfig.EqualTo("p-Pb")) {
gener->SetProjectile("P", 1, 1);
gener->SetTarget ("A", 208, 82);
gener->SetBoostLHC(1);
gener->SetSpectators(1);
}
else if (systemConfig.EqualTo("Pb-p")) {
gener->SetProjectile("A", 208, 82);
gener->SetTarget ("P", 1, 1);
gener->SetBoostLHC(1);
gener->SetSpectators(1);
}
// tell hijing to keep the full parent child chain
gener->KeepFullEvent();
// enable jet quenching
gener->SetJetQuenching(0);
// enable shadowing
gener->SetShadowing(1);
// neutral pion and heavy particle decays switched off
gener->SetDecaysOff(1);
// kinematic selection
gener->SetSelectAll(0);
gener->SetPtHardMin (2.3);
return gener;
}
/*** STARLIGHT ****************************************************/
AliGenerator *
GeneratorStarlight(){
//
gSystem->Load("libStarLight.so");
gSystem->Load("libAliStarLight.so");
// Supported processes:
// _STARLIGHT_PROCESSES_BEGIN_ this comment is used by AliRoot/STARLIGHT/test/testsl.C
// kTwoGammaToMuLow - from 0.4 to 15 GeV
// kTwoGammaToElLow - from 0.4 to 15 GeV
// kTwoGammaToMuMedium - from 2.0 to 15 GeV
// kTwoGammaToElMedium - from 2.0 to 15 GeV
// kTwoGammaToMuHigh - from 4.0 to 15 GeV
// kTwoGammaToElHigh - from 4.0to 15 GeV
// kTwoGammaToRhoRho
// kTwoGammaToF2
// kCohRhoToPi
// kCohJpsiToMu
// kCohJpsiToEl
// kCohPsi2sToMu
// kCohPsi2sToEl
// kCohPsi2sToMuPi
// kCohPsi2sToElPi
// kCohUpsilonToMu
// kCohUpsilonToEl
// kIncohRhoToPi
// kIncohJpsiToMu
// kIncohJpsiToEl
// kIncohPsi2sToMu
// kIncohPsi2sToEl
// kIncohPsi2sToMuPi
// kIncohPsi2sToElPi
// kIncohUpsilonToMu
// kIncohUpsilonToEl
// kCohRhoPrime
// kIncohRhoPrime
// _STARLIGHT_PROCESSES_END_ this comment is used by AliRoot/STARLIGHT/test/testsl.C
comment.Append(Form(" | Starlight %s (%s)", processConfig.Data(), systemConfig.Data()));
// restict ymin,ymax to [-8,8] as with the default ymin,ymax set in Config.C
// there is a floating point exception in starlight
yminConfig = TMath::Max(yminConfig, -8.0f);
ymaxConfig = TMath::Min(ymaxConfig, 8.0f);
Int_t projA=1,targA=1,projZ=1,targZ=1;
// pp
if (systemConfig.EqualTo("p-p")) {
projA = 1; projZ = 1;
targA = 1; targZ = 1;
}
// PbPb
else if (systemConfig.EqualTo("Pb-Pb")) {
projA = 208; projZ = 82;
targA = 208; targZ = 82;
}
// p-Pb
else if (systemConfig.EqualTo("p-Pb")) {
projA = 1; projZ = 1;
targA = 208; targZ = 82;
}
// Pb-p
else if (systemConfig.EqualTo("Pb-p")) {
projA = 208; projZ = 82;
targA = 1; targZ = 1;
}
Float_t beam1energy = TMath::Sqrt(Double_t(projZ)/projA*targA/targZ)*energyConfig/2;
Float_t beam2energy = TMath::Sqrt(Double_t(projA)/projZ*targZ/targA)*energyConfig/2;
Float_t gamma1 = beam1energy/0.938272;
Float_t gamma2 = beam2energy/0.938272;
Int_t prod_mode = 4; // default incoherent
if (processConfig.Contains("TwoGamma")) prod_mode = 1;
else if (processConfig.Contains("CohRho")) prod_mode = 3;
else if (processConfig.Contains("CohPhi")) prod_mode = 2;
else if (processConfig.Contains("CohJpsi")) prod_mode = 2;
else if (processConfig.Contains("CohPsi2s")) prod_mode = 2;
else if (processConfig.Contains("CohUpsilon")) prod_mode = 2;
Int_t prod_pid = 443013; // default jpsi
if (processConfig.Contains("JpsiToMu")) prod_pid = 443013;
else if (processConfig.Contains("JpsiToEl")) prod_pid = 443011;
else if (processConfig.Contains("Psi2sToMu")) prod_pid = 444013;
else if (processConfig.Contains("Psi2sToEl")) prod_pid = 444011;
else if (processConfig.Contains("UpsilonToMu")) prod_pid = 553013;
else if (processConfig.Contains("UpsilonToEl")) prod_pid = 553011;
else if (processConfig.Contains("RhoToPi")) prod_pid = 113;
else if (processConfig.Contains("PhiToKa")) prod_pid = 333;
else if (processConfig.Contains("TwoGammaToMu")) prod_pid = 13;
else if (processConfig.Contains("TwoGammaToEl")) prod_pid = 11;
else if (processConfig.Contains("TwoGammaToF2")) prod_pid = 225;
else if (processConfig.Contains("TwoGammaToRhoRho")) prod_pid = 33;
// by default use automatic wmin, wmax
Float_t wmin = -1;
Float_t wmax = -1;
Int_t nwbins = 20;
if (processConfig.Contains("TwoGammaToMu") ||
processConfig.Contains("TwoGammaToEl")) {
wmax = 15;
if (processConfig.Contains("Low")) wmin = 0.4;
else if (processConfig.Contains("Medium")) wmin = 2.0;
else if (processConfig.Contains("High")) wmin = 4.0;
nwbins = 20*(wmax-wmin);
}
Bool_t cocktail = 0;
cocktail |= processConfig.Contains("Psi2sToElPi");
cocktail |= processConfig.Contains("Psi2sToMuPi");
cocktail |= processConfig.Contains("RhoPrime");
AliGenCocktail *genCocktail = 0;
if (cocktail) genCocktail = new AliGenCocktail(); // constructor must be called before other generators
AliGenStarLight* genStarLight = new AliGenStarLight(1000*1000);
genStarLight->SetParameter(Form("BEAM_1_Z = %3i #Z of target",targZ));
genStarLight->SetParameter(Form("BEAM_1_A = %3i #A of target",targA));
genStarLight->SetParameter(Form("BEAM_2_Z = %3i #Z of projectile",projZ));
genStarLight->SetParameter(Form("BEAM_2_A = %3i #A of projectile",projA));
genStarLight->SetParameter(Form("BEAM_1_GAMMA = %6.1f #Gamma of the target",gamma1));
genStarLight->SetParameter(Form("BEAM_2_GAMMA = %6.1f #Gamma of the projectile",gamma2));
genStarLight->SetParameter(Form("W_MAX = %.1f #Max value of w",wmax));
genStarLight->SetParameter(Form("W_MIN = %.1f #Min value of w",wmin));
genStarLight->SetParameter(Form("W_N_BINS = %3i #Bins i w",nwbins));
genStarLight->SetParameter(Form("RAP_MAX = %.2f #max y",TMath::Max(TMath::Abs(yminConfig),TMath::Abs(ymaxConfig))));
genStarLight->SetParameter(Form("RAP_N_BINS = %.0f #Bins i y",10*(ymaxConfig-yminConfig)));
genStarLight->SetParameter("CUT_PT = 0 #Cut in pT? 0 = (no, 1 = yes)");
genStarLight->SetParameter("PT_MIN = 0 #Minimum pT in GeV");
genStarLight->SetParameter("PT_MAX = 10 #Maximum pT in GeV");
genStarLight->SetParameter("CUT_ETA = 0 #Cut in pseudorapidity? (0 = no, 1 = yes)");
genStarLight->SetParameter("ETA_MIN = -5 #Minimum pseudorapidity");
genStarLight->SetParameter("ETA_MAX = 5 #Maximum pseudorapidity");
genStarLight->SetParameter(Form("PROD_MODE = %i #gg or gP switch (1 = 2-photon, 2 = coherent vector meson (narrow), 3 = coherent vector meson (wide), # 4 = incoherent vector meson, 5 = A+A DPMJet single, 6 = A+A DPMJet double, 7 = p+A DPMJet single, 8 = p+A Pythia single )",prod_mode));
genStarLight->SetParameter(Form("PROD_PID = %6i #Channel of interest (not relevant for photonuclear processes)",prod_pid));
genStarLight->SetParameter(Form("RND_SEED = %i #Random number seed", seedConfig));
genStarLight->SetParameter("BREAKUP_MODE = 5 #Controls the nuclear breakup");
genStarLight->SetParameter("INTERFERENCE = 0 #Interference (0 = off, 1 = on)");
genStarLight->SetParameter("IF_STRENGTH = 1. #% of interfernce (0.0 - 0.1)");
genStarLight->SetParameter("INT_PT_MAX = 0.24 #Maximum pt considered, when interference is turned on");
genStarLight->SetParameter("INT_PT_N_BINS = 120 #Number of pt bins when interference is turned on");
genStarLight->SetParameter("XSEC_METHOD = 1 # Set to 0 to use old method for calculating gamma-gamma luminosity"); //CM
genStarLight->SetParameter("BSLOPE_DEFINITION = 0"); // using default slope
genStarLight->SetParameter("BSLOPE_VALUE = 4.0"); // default slope value
genStarLight->SetRapidityMotherRange(yminConfig,ymaxConfig);
if (!genCocktail) return genStarLight;
AliGenSLEvtGen *genEvtGen = new AliGenSLEvtGen();
TString decayTable="PSI2S.MUMUPIPI.DEC"; // default
if (processConfig.Contains("Psi2sToMuPi")) decayTable="PSI2S.MUMUPIPI.DEC";
else if (processConfig.Contains("Psi2sToElPi")) decayTable="PSI2S.EEPIPI.DEC";
else if (processConfig.Contains("RhoPrime")) decayTable="RHOPRIME.RHOPIPI.DEC";
genEvtGen->SetUserDecayTable(gSystem->ExpandPathName(Form("$ALICE_ROOT/STARLIGHT/AliStarLight/DecayTables/%s",decayTable.Data())));
if (processConfig.Contains("Psi2s")) genEvtGen->SetEvtGenPartNumber(100443);
else if (processConfig.Contains("RhoPrime")) genEvtGen->SetEvtGenPartNumber(30113);
genEvtGen->SetPolarization(1); // Set polarization: transversal(1),longitudinal(-1),unpolarized(0)
gSystem->Setenv("PYTHIA8DATA", gSystem->ExpandPathName("$ALICE_ROOT/PYTHIA8/pythia8/xmldoc"));
genCocktail->AddGenerator(genStarLight,"StarLight",1.);
genCocktail->AddGenerator(genEvtGen,"EvtGen",1.);
return genCocktail;
}
/*** AMPT ********************************************************/
AliGenerator *
GeneratorAMPT() {
//
// load libs
gSystem->Load("libAMPT");
gSystem->Load("libTAmpt");
//
comment.Append(Form(" | AMPT %s (%s)", processConfig.Data(), systemConfig.Data()));
//
// configure projectile/target
TString projN, targN;
Int_t projA, projZ, targA, targZ;
// pp
if (systemConfig.EqualTo("p-p")) {
projN = "p"; projA = 1; projZ = 1;
targN = "p"; targA = 1; targZ = 1;
}
// PbPb
else if (systemConfig.EqualTo("Pb-Pb")) {
projN = "A"; projA = 208; projZ = 82;
targN = "A"; targA = 208; targZ = 82;
}
//
// configure AMPT processes
Int_t isoft = 1; //1: defaul - 4: string melting
Int_t ntmax = 150; // NTMAX: number of timesteps (D=150)
if (processConfig.Contains("StringMelting")) isoft = 4;
if (processConfig.Contains("NoART")) ntmax = 3;
//
// AMPT
AliGenAmpt *genHi = new AliGenAmpt(-1);
AliDecayer *decayer = new AliDecayerPythia();
genHi->SetForceDecay(kHadronicD);
genHi->SetDecayer(decayer);
genHi->SetEnergyCMS(energyConfig);
genHi->SetReferenceFrame("CMS");
genHi->SetProjectile(projN.Data(), projA, projZ);
genHi->SetTarget(targN.Data(), targA, targZ);
genHi->SetIsoft(isoft); //1: defaul - 4: string melting
genHi->SetStringFrag(0.5, 0.9); //Lund string frgmentation parameters
genHi->SetPtHardMin(3);
genHi->SetImpactParameterRange(bminConfig, bmaxConfig);
// Xmu = 3.2 fm^-1 and as = 0.33 ==> sigma_{partonic} = 1.5mb
// Ntmax = 150
// v_2{2} = 0.102105 +/- 0.000266894
// v_2{4} = 0.0829477 +/- 0.00106158
genHi->SetNtMax(ntmax); // NTMAX: number of timesteps (D=150)
genHi->SetXmu(3.2264); // parton screening mass in fm^(-1) (D=3.2264d0)
genHi->SetJetQuenching(0); // enable jet quenching
genHi->SetShadowing(1); // enable shadowing
genHi->SetDecaysOff(1); // neutral pion and heavy particle decays switched off
genHi->SetSpectators(0); // track spectators
//Boost into LHC lab frame
genHi->SetBoostLHC(1);
// genHi->Init();
genHi->SetRandomReactionPlane(kTRUE);
return genHi;
}
/*** COCKTAIL ****************************************************/
AliGenerator *
GeneratorCocktail(TString name)
{
// configure projectile/target
TString projN, targN;
Int_t projA, projZ, targA, targZ;
// pp
if (systemConfig.EqualTo("p-p")) {
projN = "p"; projA = 1; projZ = 1;
targN = "p"; targA = 1; targZ = 1;
}
// PbPb
else if (systemConfig.EqualTo("Pb-Pb")) {
projN = "A"; projA = 208; projZ = 82;
targN = "A"; targA = 208; targZ = 82;
}
else if (systemConfig.EqualTo("Pb-p")) {
projN = "A"; projA = 208; projZ = 82;
targN = "p"; targA = 1; targZ = 1;
}
else if (systemConfig.EqualTo("p-Pb")) {
projN = "p"; projA = 1; projZ = 1;
targN = "A"; targA = 208; targZ = 82;
}
// not implemented
else {
printf("Cocktail not implemented for %s system\n", systemConfig.Data());
abort();
}
comment = comment.Append(Form(" | cocktail %s (%s-%s)", name.Data(), projN.Data(), targN.Data()));
//
AliGenCocktail *ctl = new AliGenCocktail();
ctl->SetName(name.Data());
ctl->SetProjectile(projN, projA, projZ);
ctl->SetTarget(targN, targA, targZ);
ctl->SetEnergyCMS(energyConfig);
ctl->SetSeed(seedConfig);
return ctl;
}
/*** INJECTOR ****************************************************/
AliGenerator *
GeneratorInjector(Int_t ninj, Int_t pdg, Float_t ptmin, Float_t ptmax, Float_t ymin, Float_t ymax, Float_t phimin, Float_t phimax)
{
comment = comment.Append(Form(" | injected (pdg=%d, %d particles)", pdg, ninj));
//
// Injected particles
AliGenBox *box = new AliGenBox(ninj);
box->SetPart(pdg);
box->SetPtRange(ptmin, ptmax);
box->SetYRange(ymin, ymax);
box->SetPhiRange(phimin, phimax);
return box;
}
/*** JPSI -> EE ****************************************************/
AliGenerator *
Generator_Jpsiee(const Char_t *params, Float_t jpsifrac, Float_t lowfrac, Float_t highfrac, Float_t bfrac)
{
/*
params
"CDF pp 8.8"
"PbPb 2.76"
*/
// load libraries to use Evtgen
gSystem->Load("libPhotos");
//gSystem->Load("libEvtGenBase");
//gSystem->Load("libEvtGenModels");
gSystem->Load("libEvtGen");
gSystem->Load("libEvtGenExternal");
gSystem->Load("libTEvtGen");
//
// set external decayer
TVirtualMCDecayer* decayer = new AliDecayerPythia();
decayer->SetForceDecay(kAll);
decayer->Init();
gMC->SetExternalDecayer(decayer);
comment = comment.Append(Form(" | J/psi -> ee (%s, %.1f/%.1f/%.1f/%.1f)", params, jpsifrac, lowfrac, highfrac, bfrac));
//
//Generating a cocktail
AliGenCocktail *gener = new AliGenCocktail();
gener->UsePerEventRates();
//
// J/psi
AliGenParam *jpsi = new AliGenParam(1, AliGenMUONlib::kJpsi, params, "Jpsi");
jpsi->SetPtRange(0., 6.);
jpsi->SetYRange(-1.0, 1.0);
jpsi->SetPhiRange(0., 360.);
jpsi->SetForceDecay(kNoDecay);
//
// flat low pT
AliGenParam *jpsiLowPt = new AliGenParam(1, AliGenMUONlib::kJpsi, "Flat", "Jpsi"); // flat pt distribution
jpsiLowPt->SetPtRange(0., 0.5);
jpsiLowPt->SetYRange(-1.0, 1.0);
jpsiLowPt->SetPhiRange(0., 360.);
jpsiLowPt->SetForceDecay(kNoDecay);
//
// flat high pT
AliGenParam *jpsiHighPtFlat = new AliGenParam(1, AliGenMUONlib::kJpsi, "Flat", "Jpsi"); // 7 TeV
jpsiHighPtFlat->SetPtRange(6., 25.);
jpsiHighPtFlat->SetYRange(-1.0, 1.0);
jpsiHighPtFlat->SetPhiRange(0., 360.);
jpsiHighPtFlat->SetForceDecay(kNoDecay);
//
// Jpsi from B
AliGenPythia *pythia = new AliGenPythia(-1);
pythia->SetMomentumRange(0, 999999.);
pythia->SetThetaRange(0., 180.);
pythia->SetYRange(-2., 2.);
pythia->SetPtRange(0, 1000.);
pythia->SetProcess(kPyBeautyppMNRwmi);
pythia->SetEnergyCMS(energyConfig);
pythia->SetTune(kPythia6Tune_Perugia0);
pythia->UseNewMultipleInteractionsScenario();
pythia->SetCutOnChild(1);
pythia->SetPdgCodeParticleforAcceptanceCut(443);
pythia->SetChildYRange(-2, 2);
pythia->SetChildPtRange(0, 10000.);
pythia->SetForceDecay(kBJpsiUndecayed);
pythia->SetStackFillOpt(AliGenPythia::kHeavyFlavor);
//
//
AliGenEvtGen *gene = new AliGenEvtGen();
gene->SetForceDecay(kBJpsiDiElectron);
gene->SetParticleSwitchedOff(AliGenEvtGen::kCharmPart);
if (jpsifrac > 0.) gener->AddGenerator(jpsi, "JPsi", jpsifrac);
if (lowfrac > 0.) gener->AddGenerator(jpsiLowPt, "jpsiLowPt", lowfrac);
if (highfrac > 0.) gener->AddGenerator(jpsiHighPtFlat, "jpsiHighPtFlat", highfrac);
if (bfrac > 0.) gener->AddGenerator(pythia, "Pythia", bfrac);
gener->AddGenerator(gene, "EvtGen", 1.);
//
return gener;
}
/*** NUCLEI EXOTICA ****************************************************/
AliGenerator *
Generator_Nuclex(UInt_t injbit, Bool_t antiparticle, Int_t ninj)
{
comment = comment.Append(Form(" | Nuclex (0x%x) ", injbit));
//
//Generating a cocktail
AliGenCocktail *gener = new AliGenCocktail();
Int_t pdgcodes[19] = {
1000010020,
1000020030,
1000010030,
1000020040,
1010010030,
1010000020,
1020000020,
1030000020,
1030010020,