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[PWGLF] Add OO cascade-enriched ini file #2071

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Merged
njacazio merged 3 commits into from
Aug 7, 2025
Merged

[PWGLF] Add OO cascade-enriched ini file #2071

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55106d9
[PWGLF] Add OO cascade-enriched ini file
ddobrigk Jul 24, 2025
4319f1d
Increase omega injection
ddobrigk Aug 7, 2025
2040ba3
Add test for OO cascade configuration
ddobrigk Aug 7, 2025
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6 changes: 6 additions & 0 deletions MC/config/PWGLF/ini/GeneratorLF_Strangeness_OO5360_injection.ini
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Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
[GeneratorExternal]
fileName=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGLF/pythia8/generator_pythia8_extraStrangeness.C
funcName=generator_extraStrangeness()

[GeneratorPythia8]
config=${O2DPG_MC_CONFIG_ROOT}/MC/config/common/pythia8/generator/pythia8_OO_536.cfg
28 changes: 28 additions & 0 deletions MC/config/PWGLF/ini/tests/GeneratorLF_Strangeness_OO5360_injection.C
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@@ -0,0 +1,28 @@
int External()
{
std::string path{"o2sim_Kine.root"};

TFile file(path.c_str(), "READ");
if (file.IsZombie())
{
std::cerr << "Cannot open ROOT file " << path << "\n";
return 1;
}

auto tree = (TTree *)file.Get("o2sim");
if (!tree)
{
std::cerr << "Cannot find tree o2sim in file " << path << "\n";
return 1;
}
std::vector<o2::MCTrack> *tracks{};
tree->SetBranchAddress("MCTrack", &tracks);

auto nEvents = tree->GetEntries();
if (nEvents < 1)
{
std::cerr << "No events actually generated: not OK!";
return 1;
}
return 0;
}
2 changes: 1 addition & 1 deletion MC/config/PWGLF/pythia8/generator_pythia8_extraStrangeness.C
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Expand Up @@ -227,7 +227,7 @@ Double_t boltzPlusPower(const Double_t *x, const Double_t *p)
// OMEGA ABUNDANCE FIX
//Adjust relative abundance of multi-strange particles by injecting some
Double_t lExpectedOmegaToPion = TMath::Max(8.55057e-04 - 7.38732e-04*TMath::Exp(-nChargedParticlesAtMidRap/2.40545e+01) - 6.56785e-05,0.);
Double_t lExpectedOmega = 5.0*nPionsAtMidRap*lExpectedOmegaToPion; // extra rich, factor 5
Double_t lExpectedOmega = 30.0*nPionsAtMidRap*lExpectedOmegaToPion; // extra rich, factor 30 (omega -> rarer -> smaller Nch bias -> ok to enrich more)
Int_t lOmegaYield = gRandom->Poisson(3*lExpectedOmega); //factor 3: fix the rapidity acceptance
m = 1.67245;
pdg = 3334;
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