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[PWGLF] Made the mass and pt cut configurable #2500

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Merged
njacazio merged 1 commit into from
Oct 8, 2026
Merged

[PWGLF] Made the mass and pt cut configurable #2500

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2 changes: 1 addition & 1 deletion MC/config/PWGLF/ini/GeneratorLF_doublephi_triggerMasspTcut.ini
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
[GeneratorExternal]
fileName=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGLF/pythia8/generator_pythia8_twophi_triggerMassCut.C
funcName=generateDoublePhi(0, 0.0, 100.0, 0.8)
funcName=generateDoublePhi(0, 0.0, 100.0, 0.8, 2.4, 6.0)

[GeneratorPythia8]
config=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGLF/pythia8/generator/pythia8_inel_136tev.cfg
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17 changes: 11 additions & 6 deletions MC/config/PWGLF/pythia8/generator_pythia8_twophi_triggerMassCut.C
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Expand Up @@ -25,14 +25,17 @@ class GeneratorPythia8DoublePhi : public o2::eventgen::GeneratorPythia8
{
public:
/// Constructor
GeneratorPythia8DoublePhi(int gapSize = 0, double minPt = 0.0, double maxPt = 100.0, double maxEta = 0.8)
GeneratorPythia8DoublePhi(int gapSize = 0, double minPt = 0.0, double maxPt = 100.0, double maxEta = 0.8, double minPairMass = 2.4, double minPairPt = 6.0)
: o2::eventgen::GeneratorPythia8(),
mGapSize(gapSize),
mMinPt(minPt),
mMaxPt(maxPt),
mMaxEta(maxEta)
mMaxEta(maxEta),
mMinPairMass(minPairMass),
mMinPairPt(minPairPt)
{
fmt::printf(">> Pythia8 generator: two phi(1020) mesons, gap = %d, minPtPhi = %f, maxPtPhi = %f, |etaPhi| < %f\n", gapSize, minPt, maxPt, maxEta);
fmt::printf(">> Pythia8 generator: two phi(1020) mesons, gap = %d, minPtPhi = %f, maxPtPhi = %f, |etaPhi| < %f, minPairMass = %f, minPairPt = %f\n",
gapSize, minPt, maxPt, maxEta, minPairMass, minPairPt);
}
/// Destructor
~GeneratorPythia8DoublePhi() = default;
Expand Down Expand Up @@ -156,7 +159,7 @@ protected:
double mass = phiPhi.M();
double pt = phiPhi.Pt();

if (mass > 2.4 && pt > 4.0)
if (mass > mMinPairMass && pt > mMinPairPt)
return true;
}
}
Expand All @@ -169,13 +172,15 @@ private:
double mMinPt{0.0};
double mMaxPt{100.0};
double mMaxEta{0.8};
double mMinPairMass{2.4};
double mMinPairPt{6.0};
uint64_t mGeneratedEvents{0};
};

///___________________________________________________________
FairGenerator *generateDoublePhi(int gap = 0, double minPt = 0.0, double maxPt = 100.0, double maxEta = 0.8)
FairGenerator *generateDoublePhi(int gap = 0, double minPt = 0.0, double maxPt = 100.0, double maxEta = 0.8, double minPairMass = 2.4, double minPairPt = 6.0)
{
auto myGenerator = new GeneratorPythia8DoublePhi(gap, minPt, maxPt, maxEta);
auto myGenerator = new GeneratorPythia8DoublePhi(gap, minPt, maxPt, maxEta, minPairMass, minPairPt);

myGenerator->readString("333:onMode = off");
myGenerator->readString("333:onIfMatch = 321 -321");
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