Skip to content

[PWGCF] Add process function to extract reflection distributions from MC #14657

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
victor-gonzalez merged 1 commit into from
Jan 27, 2026
+34 −10
Merged

[PWGCF] Add process function to extract reflection distributions from MC #14657

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
44 changes: 34 additions & 10 deletions PWGCF/Tasks/correlations.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

Check failure on line 1 in PWGCF/Tasks/correlations.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[name/workflow-file] 

Name of a workflow file must match the name of the main struct in it (without the PWG prefix). (Class implementation files should be in "Core" directories.)
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
Expand Down Expand Up @@ -189,6 +189,12 @@
registry.add("invMassTwoPartDEta", "2D 2-prong invariant mass (GeV/c^2)", {HistType::kTHnSparseF, {axisSpecMass, axisSpecMass, axisPtTrigger, axisPtAssoc, axisDeltaEta}});
}
}
if (doprocessMCReflection2ProngML) {
const AxisSpec& a = AxisSpec(axisInvMass);
AxisSpec axisSpecMass = {1000, a.binEdges[0], a.binEdges[a.getNbins()]};
registry.add("invMassSignal", "2-prong invariant mass (GeV/c^2)", {HistType::kTH3F, {axisSpecMass, axisPtTrigger, axisMultiplicity}});
registry.add("invMassReflected", "2-prong invariant mass (GeV/c^2)", {HistType::kTH3F, {axisSpecMass, axisPtTrigger, axisMultiplicity}});
}
if (doprocessSameDerivedMultSet) {
if (cfgMultCorrelationsMask == 0)
LOGF(fatal, "cfgMultCorrelationsMask can not be 0 when MultSet process functions are in use.");
Expand Down Expand Up @@ -281,7 +287,7 @@

if (!cfgEfficiencyAssociated.value.empty())
efficiencyAssociatedCache.reserve(512);
if (doprocessMCEfficiency2Prong || doprocessMCEfficiency2ProngML) {
if (doprocessMCEfficiency2Prong || doprocessMCEfficiency2ProngML || doprocessMCReflection2ProngML) {
p2indexCache.reserve(16);
if (cfgMcTriggerPDGs->empty())
LOGF(fatal, "At least one PDG code in {} is to be selected to process 2-prong efficiency.", cfgMcTriggerPDGs.name);
Expand Down Expand Up @@ -397,7 +403,7 @@

if (cfgCorrelationMethod == 1 && track1.decay() != track2.decay())
continue;
if (cfgCorrelationMethod == 2 && track1.decay() == track2.decay())

Check failure on line 406 in PWGCF/Tasks/correlations.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
registry.fill(HIST("invMassTwoPart"), track1.invMass(), track2.invMass(), track1.pt(), track2.pt(), multiplicity);
registry.fill(HIST("invMassTwoPartDPhi"), track1.invMass(), track2.invMass(), track1.pt(), track2.pt(), TVector2::Phi_0_2pi(track1.phi() - track2.phi() + TMath::Pi() / 2.0) - TMath::Pi() / 2.0);
Expand Down Expand Up @@ -666,7 +672,7 @@
if constexpr (std::experimental::is_detected<HasDecay, typename TTracks1::iterator>::value && std::experimental::is_detected<HasDecay, typename TTracks2::iterator>::value) {
if (cfgCorrelationMethod == 1 && track1.decay() != track2.decay())
continue;
if (cfgCorrelationMethod == 2 && track1.decay() == track2.decay())

Check failure on line 675 in PWGCF/Tasks/correlations.cxx

View workflow job for this annotation

GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
continue;
}

Expand Down Expand Up @@ -1158,7 +1164,7 @@
}
PROCESS_SWITCH(CorrelationTask, processMCEfficiency, "MC: Extract efficiencies", false);

template <class p2type>
template <bool reflectionSpec, class p2type>
void processMCEfficiency2ProngT(soa::Filtered<aod::CFMcCollisions>::iterator const& mcCollision, soa::Join<aod::CFMcParticles, aod::CF2ProngMcParts> const& mcParticles, soa::SmallGroups<aod::CFCollisionsWithLabel> const& collisions, aod::CFTracksWithLabel const&, p2type const& p2tracks, Preslice<p2type>& perCollision2Prong)
{
auto multiplicity = mcCollision.multiplicity();
Expand All @@ -1178,22 +1184,26 @@
continue; // wrong decay channel
if (mcParticle.cfParticleDaugh0Id() < 0 && mcParticle.cfParticleDaugh1Id() < 0)
continue; // daughters not found
same->getTrackHistEfficiency()->Fill(CorrelationContainer::MC, mcParticle.eta(), mcParticle.pt(), 4, multiplicity, mcCollision.posZ());
if constexpr (!reflectionSpec)
same->getTrackHistEfficiency()->Fill(CorrelationContainer::MC, mcParticle.eta(), mcParticle.pt(), 4, multiplicity, mcCollision.posZ());
p2indexCache.push_back(mcParticle.globalIndex());
}
}
for (const auto& collision : collisions) {
auto grouped2ProngTracks = p2tracks.sliceBy(perCollision2Prong, collision.globalIndex());

for (const auto& p2track : grouped2ProngTracks) {
if (cfgDecayParticleMask != 0 && (cfgDecayParticleMask & (1u << static_cast<uint32_t>(p2track.decay()))) == 0u)
continue;
if constexpr (!reflectionSpec) {
if (cfgDecayParticleMask != 0 && (cfgDecayParticleMask & (1u << static_cast<uint32_t>(p2track.decay()))) == 0u)
continue;
}
// Check if the mc particles of the prongs are found.
if constexpr (std::experimental::is_detected<HasMlProbD0, typename p2type::iterator>::value) {
if (!passMLScore(p2track))
continue;
}
same->getTrackHistEfficiency()->Fill(CorrelationContainer::RecoAll, p2track.eta(), p2track.pt(), 4, multiplicity, mcCollision.posZ());
if constexpr (!reflectionSpec)
same->getTrackHistEfficiency()->Fill(CorrelationContainer::RecoAll, p2track.eta(), p2track.pt(), 4, multiplicity, mcCollision.posZ());
auto fillMC2p = [&](const aod::CFTracksWithLabel::iterator& p) -> bool {
if (!p.has_cfMCParticle())
return false;
Expand All @@ -1204,7 +1214,14 @@
if (m == p2indexCache.end())
return false;
const auto& mcParticle = mcParticles.iteratorAt(*m - mcParticles.begin().globalIndex());
same->getTrackHistEfficiency()->Fill(CorrelationContainer::RecoPrimaries, mcParticle.eta(), mcParticle.pt(), 4, multiplicity, mcCollision.posZ());
if constexpr (!reflectionSpec) {
same->getTrackHistEfficiency()->Fill(CorrelationContainer::RecoPrimaries, mcParticle.eta(), mcParticle.pt(), 4, multiplicity, mcCollision.posZ());
} else {
if (mcParticle.mcDecay() == p2track.decay())
registry.fill(HIST("invMassSignal"), p2track.invMass(), p2track.pt(), multiplicity);
else // one particle may be filled into both histograms through duplicates
registry.fill(HIST("invMassReflected"), p2track.invMass(), p2track.pt(), multiplicity);
}
return true;
};
if (p2track.has_cfTrackProng0()) {
Expand All @@ -1218,25 +1235,32 @@
}

// fake track
same->getTrackHistEfficiency()->Fill(CorrelationContainer::Fake, p2track.eta(), p2track.pt(), 4, multiplicity, mcCollision.posZ());
if constexpr (!reflectionSpec)
same->getTrackHistEfficiency()->Fill(CorrelationContainer::Fake, p2track.eta(), p2track.pt(), 4, multiplicity, mcCollision.posZ());
}
}
}

Preslice<aod::CF2ProngTracks> perCollision2Prong = aod::cftrack::cfCollisionId;
void processMCEfficiency2Prong(soa::Filtered<aod::CFMcCollisions>::iterator const& mcCollision, soa::Join<aod::CFMcParticles, aod::CF2ProngMcParts> const& mcParticles, soa::SmallGroups<aod::CFCollisionsWithLabel> const& collisions, aod::CFTracksWithLabel const& tracks, aod::CF2ProngTracks const& p2tracks)
{
processMCEfficiency2ProngT(mcCollision, mcParticles, collisions, tracks, p2tracks, perCollision2Prong);
processMCEfficiency2ProngT<false>(mcCollision, mcParticles, collisions, tracks, p2tracks, perCollision2Prong);
}
PROCESS_SWITCH(CorrelationTask, processMCEfficiency2Prong, "MC: Extract efficiencies for 2-prong particles", false);

Preslice<soa::Join<aod::CF2ProngTracks, aod::CF2ProngTrackmls>> perCollision2ProngML = aod::cftrack::cfCollisionId;
void processMCEfficiency2ProngML(soa::Filtered<aod::CFMcCollisions>::iterator const& mcCollision, soa::Join<aod::CFMcParticles, aod::CF2ProngMcParts> const& mcParticles, soa::SmallGroups<aod::CFCollisionsWithLabel> const& collisions, aod::CFTracksWithLabel const& tracks, soa::Join<aod::CF2ProngTracks, aod::CF2ProngTrackmls> const& p2tracks)
{
processMCEfficiency2ProngT(mcCollision, mcParticles, collisions, tracks, p2tracks, perCollision2ProngML);
processMCEfficiency2ProngT<false>(mcCollision, mcParticles, collisions, tracks, p2tracks, perCollision2ProngML);
}
PROCESS_SWITCH(CorrelationTask, processMCEfficiency2ProngML, "MC: Extract efficiencies for 2-prong particles with ML scores", false);

void processMCReflection2ProngML(soa::Filtered<aod::CFMcCollisions>::iterator const& mcCollision, soa::Join<aod::CFMcParticles, aod::CF2ProngMcParts> const& mcParticles, soa::SmallGroups<aod::CFCollisionsWithLabel> const& collisions, aod::CFTracksWithLabel const& tracks, soa::Join<aod::CF2ProngTracks, aod::CF2ProngTrackmls> const& p2tracks)
{
processMCEfficiency2ProngT<true>(mcCollision, mcParticles, collisions, tracks, p2tracks, perCollision2ProngML);
}
PROCESS_SWITCH(CorrelationTask, processMCReflection2ProngML, "MC: Extract reflection distributions for 2-prong particles with ML scores", false);

template <class Particles1, class Particles2>
void processMCSameDerivedT(soa::Filtered<aod::CFMcCollisions>::iterator const& mcCollision, Particles1 const& mcParticles1, Particles2 const& mcParticles2, soa::SmallGroups<aod::CFCollisionsWithLabel> const& collisions)
{
Expand Down
Loading