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[PWGLF] fix double omega mass calculation #14232

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ercolessi merged 1 commit into from
Dec 16, 2025
Merged

[PWGLF] fix double omega mass calculation #14232

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16 changes: 10 additions & 6 deletions PWGLF/TableProducer/Strangeness/doubleCascTreeCreator.cxx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

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[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 @@ -35,7 +35,7 @@
#include "Framework/runDataProcessing.h"
#include "ReconstructionDataFormats/Track.h"

#include "TDatabasePDG.h"

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[pdg/database] 

Do not use TDatabasePDG directly. Use o2::constants::physics::Mass... or Service<o2::framework::O2DatabasePDG> instead.

#include <random>
#include <utility>
Expand Down Expand Up @@ -86,25 +86,25 @@
OutputObj<ZorroSummary> zorroSummary{"zorroSummary"};

Configurable<bool> cfgSkimmedProcessing{"cfgSkimmedProcessing", false, "Skimmed dataset processing"};
Configurable<std::string> ccdburl{"ccdb-url", "http://alice-ccdb.cern.ch", "url of the ccdb repository"};

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)

ConfigurableAxis centAxis{"centAxis", {106, 0, 106}, "binning for the centrality"};
ConfigurableAxis zVtxAxis{"zVtxBins", {100, -20.f, 20.f}, "Binning for the vertex z in cm"};

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)

// binning of (anti)lambda mass QA histograms
ConfigurableAxis massOmegaAxis{"massLambdaAxis", {400, o2::constants::physics::MassOmegaMinus - 0.05f, o2::constants::physics::MassOmegaMinus + 0.035}, "binning for the Omega invariant-mass"};
ConfigurableAxis massOmegaAxis{"massOmegaAxis", {400, o2::constants::physics::MassOmegaMinus - 0.05f, o2::constants::physics::MassOmegaMinus + 0.05}, "binning for the Omega invariant-mass"};
ConfigurableAxis massXiAxis{"massXiAxis", {400, o2::constants::physics::MassXiMinus - 0.05f, o2::constants::physics::MassXiMinus + 0.05f}, "binning for the Xi invariant-mass"};

Configurable<float> zVtxMax{"zVtxMax", 10.0f, "maximum z position of the primary vertex"};
Configurable<float> etaMax{"etaMax", 0.9f, "maximum eta"};
ConfigurableAxis momAxis{"momAxisFine", {5.e2, 0.f, 5.f}, "momentum axis binning"};

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)

Configurable<float> cascPtMin{"cascPtMin", 1.f, "minimum (anti)casc pT (GeV/c)"};
Configurable<float> cascPtMax{"cascPtMax", 4.f, "maximum (anti)casc pT (GeV/c)"};
Configurable<float> cascPtMax{"cascPtMax", 5.f, "maximum (anti)casc pT (GeV/c)"};

Configurable<float> minNCrossedRows{"minNCrossedRows", 100, "Minimum number of crossed TPC rows"};
Configurable<float> minNITSClus{"minNITSClus", 0., "Minimum number of ITS clusters"};
Configurable<float> minNTPCClus{"minNTPCClus", 100, "Minimum number of TPC clusters"};
Configurable<float> minNTPCClus{"minNTPCClus", 80, "Minimum number of TPC clusters"};
Configurable<float> maxNSharedTPCClus{"maxNSharedTPCClus", 5, "Maximum number of shared TPC clusters"};

Configurable<double> minCascCosPA{"minCascCosPA", 0.99f, "Minimum cosine of the pointing angle of the cascade"};
Expand All @@ -125,7 +125,7 @@
if (track.itsNCls() < minNITSClus ||
track.tpcNClsFound() < minNTPCClus ||
track.tpcNClsCrossedRows() < minNCrossedRows ||
track.tpcNClsCrossedRows() < 0.8 * track.tpcNClsFindable() ||

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
track.tpcNClsShared() > maxNSharedTPCClus) {
return false;
}
Expand Down Expand Up @@ -159,8 +159,10 @@

// event QA
histos.add<TH1>("QA/zVtx", ";#it{z}_{vtx} (cm);Entries", HistType::kTH1F, {zVtxAxis});
histos.add<TH2>("QA/massXi", ";#it{p}_{T} (GeV/#it{c});#it{M}(#Lambda + #pi^{-}) (GeV/#it{c}^{2});Entries", HistType::kTH2F, {momAxis, massXiAxis});
histos.add<TH2>("QA/massOmega", ";#it{p}_{T} (GeV/#it{c});#it{M}(#Omega + #pi^{-}) (GeV/#it{c}^{2});Entries", HistType::kTH2F, {momAxis, massOmegaAxis});
histos.add<TH2>("QA/massXi1", ";#it{p}_{T} (GeV/#it{c});#it{M}(#Lambda + #pi^{-}) (GeV/#it{c}^{2});Entries", HistType::kTH2F, {momAxis, massXiAxis});
histos.add<TH2>("QA/massOmega1", ";#it{p}_{T} (GeV/#it{c});#it{M}(#Omega + #pi^{-}) (GeV/#it{c}^{2});Entries", HistType::kTH2F, {momAxis, massOmegaAxis});
histos.add<TH2>("QA/massXi2", ";#it{p}_{T} (GeV/#it{c});#it{M}(#Lambda + #pi^{-}) (GeV/#it{c}^{2});Entries", HistType::kTH2F, {momAxis, massXiAxis});
histos.add<TH2>("QA/massOmega2", ";#it{p}_{T} (GeV/#it{c});#it{M}(#Omega + #pi^{-}) (GeV/#it{c}^{2});Entries", HistType::kTH2F, {momAxis, massOmegaAxis});
}

template <class C, class T>
Expand Down Expand Up @@ -210,7 +212,7 @@
};

template <class T>
bool doubleOmegaMass(T const&, FullCascades::iterator const& casc1, FullCascades::iterator const& casc2)
float doubleOmegaMass(T const&, FullCascades::iterator const& casc1, FullCascades::iterator const& casc2)
{
// the fake omega decay is the one with the smaller radius
auto& fakeOmega = casc1.cascradius() < casc2.cascradius() ? casc1 : casc2;
Expand All @@ -233,11 +235,13 @@
{
doubleCascCands.clear();

for (auto& casc1 : cascades) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (!isSelectedCasc(collision, tracks, casc1)) {
continue;
}
histos.fill(HIST("QA/massXi"), casc1.pt(), casc1.mXi());
histos.fill(HIST("QA/massOmega"), casc1.pt(), casc1.mOmega());
for (auto& casc2 : cascades) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
if (!isSelectedCasc(collision, tracks, casc2)) {
continue;
}
Expand Down Expand Up @@ -299,7 +303,7 @@
histos.fill(HIST("QA/zVtx"), collision.posZ());
fillDoubleCasc(collision, tracks, cascades);

for (auto& cand : doubleCascCands) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.
doubleCascTable(
cand.ptCasc1,
cand.etaCasc1,
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