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[PWGCF] FemtoUniverse: Add 3D histogram of TOF Nsigma, pT and centrality for purity studies #16960

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Merged
prchakra merged 1 commit into from
Jul 8, 2026
Merged

[PWGCF] FemtoUniverse: Add 3D histogram of TOF Nsigma, pT and centrality for purity studies #16960

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26 changes: 26 additions & 0 deletions PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackMultKtExtended.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -170,6 +170,7 @@
/// Particle part
ConfigurableAxis confTempFitVarBins{"confTempFitVarBins", {300, -0.15, 0.15}, "binning of the TempFitVar in the pT vs. TempFitVar plot"};
ConfigurableAxis confTempFitVarpTBins{"confTempFitVarpTBins", {20, 0.5, 4.05}, "pT binning of the pT vs. TempFitVar plot"};
ConfigurableAxis confTOFnSigmaBins{"confTOFnSigmaBins", {200, -4.975, 5.025}, "Binning of the TOF Nsigma vs. pT vs. centrality plot"};

/// Correlation part
ConfigurableAxis confMultBins{"confMultBins", {VARIABLE_WIDTH, 0.0f, 4.0f, 8.0f, 12.0f, 16.0f, 20.0f, 24.0f, 28.0f, 32.0f, 36.0f, 40.0f, 44.0f, 48.0f, 52.0f, 56.0f, 60.0f, 64.0f, 68.0f, 72.0f, 76.0f, 80.0f, 84.0f, 88.0f, 92.0f, 96.0f, 100.0f, 200.0f, 99999.f}, "Mixing bins - multiplicity or centrality"}; // \todo to be obtained from the hash task
Expand Down Expand Up @@ -356,6 +357,27 @@
return false;
}

template <typename PartType>
float whichTOFNSigma(int PDGcode, PartType part)
{
switch (PDGcode) {
case 2212: // Proton+
case -2212: // Proton-
return trackCuts.getNsigmaTOF(part, o2::track::PID::Proton);
case 211: // Pion+
case -211: // Pion-
case 111: // Pion 0
return trackCuts.getNsigmaTOF(part, o2::track::PID::Pion);
case 321: // Kaon+
case -321: // Kaon-
case 130: // Kaon 0 LONG
case 310: // Kaon 0 SHORT
return trackCuts.getNsigmaTOF(part, o2::track::PID::Kaon);
Comment on lines +363 to +375

@vkucera vkucera Jul 8, 2026

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Why are you using magic numbers instead of named constants?

@alicja-pp alicja-pp Jul 8, 2026

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I am correcting it now. The linter did not point out the issues in those changes.

default:
return 0;
}
}

void init(InitContext&)
{
colBinning = ColumnBinningPolicy<aod::collision::PosZ, aod::femtouniversecollision::MultV0M>{{confVtxBins, confMultBins}, true};
Expand All @@ -365,6 +387,8 @@
trackHistoPartOne.init(&qaRegistry, confTempFitVarpTBins, confTempFitVarBins, twotracksconfigs.confIsMC, trackonefilter.confPDGCodePartOne, true);

trackHistoPartTwo.init(&qaRegistry, confTempFitVarpTBins, confTempFitVarBins, twotracksconfigs.confIsMC, tracktwofilter.confPDGCodePartTwo, true);
qaRegistry.add("Tracks_one/nSigmaTOF", "; #it{p} (GeV/#it{c}); n#sigma_{TOF}; Centrality", kTH3F, {confTempFitVarpTBins, confTOFnSigmaBins, confMultBins});
qaRegistry.add("Tracks_two/nSigmaTOF", "; #it{p} (GeV/#it{c}); n#sigma_{TOF}; Centrality", kTH3F, {confTempFitVarpTBins, confTOFnSigmaBins, confMultBins});

if (confFillDebug) {
sphericityRegistry.add("sphericity", ";Sphericity;Entries", kTH1F, {{150, 0.0, 3, "Sphericity"}});
Expand Down Expand Up @@ -481,6 +505,7 @@
continue;
}
trackHistoPartOne.fillQA<isMC, true>(part);
qaRegistry.fill(HIST("Tracks_one/nSigmaTOF"), part.pt(), whichTOFNSigma(trackonefilter.confPDGCodePartOne, part), multCol);
}
}

Expand All @@ -490,6 +515,7 @@
continue;
}
trackHistoPartTwo.fillQA<isMC, true>(part);
qaRegistry.fill(HIST("Tracks_two/nSigmaTOF"), part.pt(), whichTOFNSigma(tracktwofilter.confPDGCodePartTwo, part), multCol);
}
}

Expand Down Expand Up @@ -524,7 +550,7 @@
randgen = new TRandom2(0);
rand = randgen->Rndm();

if (rand > 0.5) {

Check failure on line 553 in PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackMultKtExtended.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
part1 = p2;
part2 = p1;
}
Expand Down Expand Up @@ -563,7 +589,7 @@
randgen = new TRandom2(0);
rand = randgen->Rndm();

if (rand > 0.5) {

Check failure on line 592 in PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackMultKtExtended.cxx

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GitHub Actions / O2 linter

[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
part1 = p2;
part2 = p1;
}
Expand Down Expand Up @@ -716,7 +742,7 @@
randgen = new TRandom2(0);
rand = randgen->Rndm();

if (rand > 0.5) {

Check failure on line 745 in PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackMultKtExtended.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
part1 = p2;
part2 = p1;
}
Expand Down Expand Up @@ -891,7 +917,7 @@
randgen = new TRandom2(0);
rand = randgen->Rndm();

if (rand > 0.5) {

Check failure on line 920 in PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackMultKtExtended.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
part1 = p2;
part2 = p1;
}
Expand Down
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