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PWGLF: add INELGT0 normalisation scheme #1061

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Merged
mario-krueger merged 1 commit into from
Jul 27, 2022
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PWGLF: add INELGT0 normalisation scheme #1061

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11 changes: 10 additions & 1 deletion PWGLF/Tasks/spectraCharged.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -42,12 +42,15 @@ struct chargedSpectra {
Configurable<float> ptMinCut{"ptMinCut", 0.15f, "pt min cut"};
Configurable<float> ptMaxCut{"ptMaxCut", 10.f, "pt max cut"};

Configurable<bool> normINELGT0{"normINELGT0", false, "normalize INEL>0 according to MC"};

// helper struct to store transient properties
struct varContainer {
uint32_t multMeas{0u};
uint32_t multTrue{0u};
bool isAcceptedEvent{false};
bool isAcceptedEventMC{false};
bool isINELGT0EventMC{false};
bool isChargedPrimary{false};
};
varContainer vars;
Expand Down Expand Up @@ -218,6 +221,10 @@ bool chargedSpectra::initParticle(const P& particle)
return false;
}
vars.isChargedPrimary = particle.isPhysicalPrimary();

// event class is INEL>0 in case it has a charged particle in abs(eta) < 1
vars.isINELGT0EventMC = vars.isINELGT0EventMC || (vars.isChargedPrimary && (std::abs(particle.eta()) < 1.));

if (std::abs(particle.eta()) >= etaCut) {
return false;
}
Expand Down Expand Up @@ -280,14 +287,16 @@ void chargedSpectra::initEvent(const C& collision, const T& tracks)
template <typename C, typename P>
void chargedSpectra::initEventMC(const C& collision, const P& particles)
{
vars.isINELGT0EventMC = false; // will be set to true in case a charged particle within eta +-1 is found
vars.multTrue = 0;
for (auto& particle : particles) {
if (!initParticle(particle) || !vars.isChargedPrimary) {
continue;
}
++vars.multTrue;
}
vars.isAcceptedEventMC = ((std::abs(collision.posZ()) < 10.f) && (vars.multTrue > 0));
bool isGoodEventClass = (normINELGT0) ? vars.isINELGT0EventMC : (vars.multTrue > 0);
vars.isAcceptedEventMC = isGoodEventClass && (std::abs(collision.posZ()) < 10.f);
}

//**************************************************************************************************
Expand Down