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Merged
maciacco merged 3 commits into from
Aug 29, 2025
Merged

[PWGLF] Update nucleitpcpbpb.cxx #12782

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4b85905
Update nucleitpcpbpb.cxx
jtanwar2212 Aug 29, 2025
3d91b31
Merge branch 'AliceO2Group:master' into master
jtanwar2212 Aug 29, 2025
d595bfb
Update nucleitpcpbpb.cxx
jtanwar2212 Aug 29, 2025
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128 changes: 84 additions & 44 deletions PWGLF/Tasks/Nuspex/nucleitpcpbpb.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 @@ -67,25 +67,25 @@
{5.393020, 7.859534, 0.004048, 2.323197, 1.609307, 0.09}, // triton
{-126.557359, -0.858569, 1.111643, 1.210323, 2.656374, 0.09}, // helion
{-126.557359, -0.858569, 1.111643, 1.210323, 2.656374, 0.09}}; // alpha
const int nTrkSettings = 14;
static const std::vector<std::string> trackPIDsettingsNames{"useBBparams", "minITSnCls", "minITSnClscos", "minTPCnCls", "maxTPCchi2", "minTPCchi2", "maxITSchi2", "maxTPCnSigma", "maxDcaXY", "maxDcaZ", "minITSclsSize", "maxITSclsSize", "minTPCnClsCrossedRows", "minReqClusterITSib"};
const int nTrkSettings = 13;
static const std::vector<std::string> trackPIDsettingsNames{"useBBparams", "minITSnCls", "minITSnClscos", "minTPCnCls", "maxTPCchi2", "minTPCchi2", "maxITSchi2", "maxTPCnSigma", "maxDcaXY", "maxDcaZ", "minITSclsSize", "minTPCnClsCrossedRows", "minReqClusterITSib"};
constexpr double kTrackPIDSettings[nParticles][nTrkSettings]{
{0, 0, 4, 60, 4.0, 0.5, 100, 2.5, 2., 2., 0., 1000, 70, 1},
{1, 0, 4, 70, 4.0, 0.5, 100, 3.0, 2., 2., 0., 1000, 70, 1},
{1, 0, 4, 70, 4.0, 0.5, 100, 3.0, 2., 2., 0., 1000, 70, 1},
{1, 0, 4, 70, 4.0, 0.5, 100, 3.0, 2., 2., 0., 1000, 70, 1},
{1, 0, 4, 75, 4.0, 0.5, 100, 5.0, 2., 2., 0., 1000, 70, 1},
{1, 0, 4, 70, 4.0, 0.5, 100, 5.0, 2., 2., 0., 1000, 70, 1}};
{0, 0, 4, 60, 4.0, 0.5, 100, 2.5, 2., 2., 0., 70, 1},
{1, 0, 4, 70, 4.0, 0.5, 100, 3.0, 2., 2., 0., 70, 1},
{1, 0, 4, 70, 4.0, 0.5, 100, 3.0, 2., 2., 0., 70, 1},
{1, 0, 4, 70, 4.0, 0.5, 100, 3.0, 2., 2., 0., 70, 1},
{1, 0, 4, 75, 4.0, 0.5, 100, 5.0, 2., 2., 0., 70, 1},
{1, 0, 4, 70, 4.0, 0.5, 100, 5.0, 2., 2., 0., 70, 1}};

const int nTrkSettings2 = 4;
static const std::vector<std::string> trackPIDsettingsNames2{"useITSnsigma", "minITSnsigma", "maxITSnsigma", "fillsparsh"};
const int nTrkSettings2 = 6;
static const std::vector<std::string> trackPIDsettingsNames2{"useITSnsigma", "minITSnsigma", "maxITSnsigma", "fillsparsh", "useTPCnsigmaTOF", "maxTPCnsigmaTOF"};
constexpr double kTrackPIDSettings2[nParticles][nTrkSettings2]{
{1, -5, 4, 0},
{1, -5, 4, 0},
{1, -5, 4, 0},
{1, -5, 4, 1},
{1, -5, 4, 1},
{1, -5, 4, 1}};
{1, -5, 4, 0, 1, 2},
{1, -5, 4, 0, 1, 2},
{1, -5, 4, 0, 1, 2},
{1, -5, 4, 1, 1, 2},
{1, -5, 4, 1, 1, 2},
{1, -5, 4, 1, 1, 2}};

struct PrimParticles {
TString name;
Expand All @@ -104,6 +104,7 @@
}; // struct PrimParticles
//----------------------------------------------------------------------------------------------------------------
std::vector<std::shared_ptr<TH2>> hmass;
std::vector<std::shared_ptr<TH2>> hmassnsigma;
} // namespace
//----------------------------------------------------------------------------------------------------------------
struct NucleitpcPbPb {
Expand Down Expand Up @@ -142,26 +143,24 @@
Configurable<bool> cfgminGetMeanItsClsSizeRequire{"cfgminGetMeanItsClsSizeRequire", true, "Require minGetMeanItsClsSize Cut"};
Configurable<bool> cfgmaxGetMeanItsClsSizeRequire{"cfgmaxGetMeanItsClsSizeRequire", true, "Require maxGetMeanItsClsSize Cut"};
Configurable<bool> cfgDCAwithptRequire{"cfgDCAwithptRequire", true, "Require DCA cuts with pt dependance"};
Configurable<bool> cfgDCAnopt{"cfgDCAnopt", true, "Require DCA cuts without pt dependance"};
Configurable<bool> cfgRequirebetaplot{"cfgRequirebetaplot", true, "Require beta plot"};

Configurable<LabeledArray<double>> cfgBetheBlochParams{"cfgBetheBlochParams", {kBetheBlochDefault[0], nParticles, nBetheParams, particleNames, betheBlochParNames}, "TPC Bethe-Bloch parameterisation for light nuclei"};
Configurable<LabeledArray<double>> cfgTrackPIDsettings{"cfgTrackPIDsettings", {kTrackPIDSettings[0], nParticles, nTrkSettings, particleNames, trackPIDsettingsNames}, "track selection and PID criteria"};
Configurable<LabeledArray<double>> cfgTrackPIDsettings2{"cfgTrackPIDsettings2", {kTrackPIDSettings2[0], nParticles, nTrkSettings2, particleNames, trackPIDsettingsNames2}, "track selection and PID criteria"};
Configurable<bool> cfgFillhspectra{"cfgFillhspectra", true, "fill data sparsh"};
Configurable<bool> cfgFillmass{"cfgFillmass", false, "Fill mass histograms"};
Configurable<bool> cfgFillmassnsigma{"cfgFillmassnsigma", true, "Fill mass vs nsigma histograms"};
Configurable<float> centcut{"centcut", 80.0f, "centrality cut"};
Configurable<float> cfgCutRapidity{"cfgCutRapidity", 0.5f, "Rapidity range"};
Configurable<float> cfgZvertex{"cfgZvertex", 10, "Min Z Vertex"};
Configurable<bool> cfgZvertexRequire{"cfgZvertexRequire", true, "Pos Z cut require"};
Configurable<bool> cfgZvertexRequireMC{"cfgZvertexRequireMC", true, "Pos Z cut require for generated particles"};
Configurable<bool> cfgsel8Require{"cfgsel8Require", true, "sel8 cut require"};
Configurable<float> cfgtpcNClsFound{"cfgtpcNClsFound", 100.0f, "min. no. of tpcNClsFound"};
Configurable<float> cfgitsNCls{"cfgitsNCls", 2.0f, "min. no. of itsNCls"};
o2::track::TrackParametrizationWithError<float> mTrackParCov;
// Binning configuration
ConfigurableAxis axisMagField{"axisMagField", {10, -10., 10.}, "magnetic field"};
ConfigurableAxis axisNev{"axisNev", {3, 0., 3.}, "Number of events"};
ConfigurableAxis axisNev{"axisNev", {5, 0., 5.}, "Number of events"};
ConfigurableAxis axisRigidity{"axisRigidity", {4000, -10., 10.}, "#it{p}^{TPC}/#it{z}"};
ConfigurableAxis axisdEdx{"axisdEdx", {4000, 0, 4000}, "d#it{E}/d#it{x}"};
ConfigurableAxis axisCent{"axisCent", {100, 0, 100}, "centrality"};
Expand All @@ -171,13 +170,9 @@
ConfigurableAxis axiseta{"axiseta", {100, -1, 1}, "eta"};
ConfigurableAxis axisrapidity{"axisrapidity", {100, -2, 2}, "rapidity"};
ConfigurableAxis axismass{"axismass", {100, -10, 10}, "mass^{2}"};
ConfigurableAxis nsigmaAxis{"nsigmaAxis", {160, -20, 20}, "n#sigma_{#pi^{+}}"};
ConfigurableAxis nsigmaAxis{"nsigmaAxis", {160, -10, 10}, "n#sigma_{#pi^{+}}"};
ConfigurableAxis speciesBitAxis{"speciesBitAxis", {8, -0.5, 7.5}, "particle type 0: pion, 1: proton, 2: deuteron, 3: triton, 4:He3, 5:He4"};
ConfigurableAxis axisDCA{"axisDCA", {400, -10., 10.}, "DCA axis"};
ConfigurableAxis axisTPCcls{"axisTPCcls", {400, 0., 200.}, "TPCcls axis"};
ConfigurableAxis axisITScls{"axisITScls", {400, 0., 200.}, "ITScls axis"};
ConfigurableAxis axisITSchi2{"axisITSchi2", {400, 0., 100.}, "ITSchi2 axis"};
ConfigurableAxis axisTPCchi2{"axisTPCchi2", {400, 0., 100.}, "TPCchi2 axis"};

// CCDB
Service<o2::ccdb::BasicCCDBManager> ccdb;
Expand Down Expand Up @@ -224,6 +219,7 @@
histos.add("Tpcsignal", "Tpcsignal", kTH2F, {axisRigidity, axisdEdx});

hmass.resize(2 * nParticles + 2);
hmassnsigma.resize(2 * nParticles + 2);

for (int i = 0; i < nParticles; i++) {
TString histName = primaryParticles[i].name;
Expand All @@ -232,8 +228,15 @@
hmass[2 * i + 1] = histos.add<TH2>(Form("histmass_ptanti/histmass_%s", histName.Data()), ";p_T{TPC} (GeV/#it{c}); mass^{2}", HistType::kTH2F, {ptAxis, axismass});
}
}
for (int i = 0; i < nParticles; i++) {
TString histName = primaryParticles[i].name;
if (cfgFillmassnsigma) {
hmassnsigma[2 * i] = histos.add<TH2>(Form("histmass_nsigma/histmass_%s", histName.Data()), ";nsigma; mass^{2}", HistType::kTH2F, {nsigmaAxis, axismass});
hmassnsigma[2 * i + 1] = histos.add<TH2>(Form("histmass_nsigmaanti/histmass_%s", histName.Data()), ";p_T{TPC} (GeV/#it{c}); mass^{2}", HistType::kTH2F, {nsigmaAxis, axismass});
}
}

histos.add<THnSparse>("hSpectra", " ", HistType::kTHnSparseF, {speciesBitAxis, ptAxis, nsigmaAxis, {5, -2.5, 2.5}, axisCent, axisRigidity, axisdEdx, axisDCA, axisDCA, nsigmaAxis});
histos.add<THnSparse>("hSpectra", " ", HistType::kTHnSparseF, {speciesBitAxis, ptAxis, nsigmaAxis, {5, -2.5, 2.5}, axisCent, axisDCA, axisDCA, axisrapidity, axiseta});

if (doprocessMC) {
histomc.add("histVtxZgen", "histVtxZgen", kTH1F, {axisVtxZ});
Expand All @@ -253,8 +256,11 @@
histomc.add("histPtRecoHe4", "histPtgenHe4", kTH1F, {ptAxis});
histomc.add("histPtRecoAntiHe4", "histPtgenAntiHe4", kTH1F, {ptAxis});
histomc.add("histDeltaPtVsPtGen", " delta pt vs pt rec", HistType::kTH2F, {{1000, 0, 10}, {1000, -0.5, 0.5, "p_{T}(reco) - p_{T}(gen);p_{T}(reco)"}});
histomc.add("histDeltaPtVsPtGenanti", " delta pt vs pt rec", HistType::kTH2F, {{1000, 0, 10}, {1000, -0.5, 0.5, "p_{T}(reco) - p_{T}(gen);p_{T}(reco)"}});
histomc.add("histPIDtrack", " delta pt vs pt rec", HistType::kTH2F, {{1000, 0, 10, "p_{T}(reco)"}, {9, -0.5, 8.5, "p_{T}(reco) - p_{T}(gen)"}});
histomc.add("histPIDtrackanti", " delta pt vs pt rec", HistType::kTH2F, {{1000, 0, 10, "p_{T}(reco)"}, {9, -0.5, 8.5, "p_{T}(reco) - p_{T}(gen)"}});
histomc.add("histDeltaPtVsPtGenHe4", " delta pt vs pt rec", HistType::kTH2F, {{1000, 0, 10}, {1000, -0.5, 0.5, "p_{T}(reco) - p_{T}(gen);p_{T}(reco)"}});
histomc.add("histDeltaPtVsPtGenHe4anti", " delta pt vs pt rec", HistType::kTH2F, {{1000, 0, 10}, {1000, -0.5, 0.5, "p_{T}(reco) - p_{T}(gen);p_{T}(reco)"}});
}
}
//----------------------------------------------------------------------------------------------------------------
Expand Down Expand Up @@ -309,7 +315,7 @@
}
if (track.sign() < 0) {
sign = -1;
} // <- This redeclares a new local variable!
}
if (std::abs(getRapidity(track, i)) > cfgCutRapidity && cfgRapidityRequire)
continue;
if (track.tpcNClsFound() < cfgTrackPIDsettings->get(i, "minTPCnCls") && cfgTPCNClsfoundRequire)
Expand All @@ -331,8 +337,6 @@
continue;
if (getMeanItsClsSize(track) < cfgTrackPIDsettings->get(i, "minITSclsSize") && cfgminGetMeanItsClsSizeRequire)
continue;
if (getMeanItsClsSize(track) > cfgTrackPIDsettings->get(i, "maxITSclsSize") && cfgmaxGetMeanItsClsSizeRequire)
continue;

bool insideDCAxy = (std::abs(track.dcaXY()) <= (cfgTrackPIDsettings->get(i, "maxDcaXY") * (0.0105f + 0.0350f / std::pow(ptMomn, 1.1f)))); // o2-linter: disable=magic-number (To be checked)
if ((!(insideDCAxy) || std::abs(track.dcaZ()) > dcazSigma(ptMomn, cfgTrackPIDsettings->get(i, "maxDcaZ"))) && cfgDCAwithptRequire)
Expand All @@ -342,23 +346,24 @@
if ((std::abs(tpcNsigma) > cfgTrackPIDsettings->get(i, "maxTPCnSigma")) && cfgmaxTPCnSigmaRequire)
continue;
float itsSigma = getITSnSigma(track, primaryParticles.at(i));

if (itsSigma < cfgTrackPIDsettings2->get(i, "minITSnsigma") && cfgTrackPIDsettings2->get(i, "useITSnsigma") < 1)
continue;
if (itsSigma > cfgTrackPIDsettings2->get(i, "maxITSnsigma") && cfgTrackPIDsettings2->get(i, "useITSnsigma") < 1)
continue;
histos.fill(HIST("Tpcsignal"), getRigidity(track) * track.sign(), track.tpcSignal());

fillhmass(track, i);
if (cfgFillhspectra && cfgTrackPIDsettings2->get(i, "fillsparsh") == 1) {
histos.fill(HIST("hSpectra"), i, ptMomn, tpcNsigma, sign, collision.centFT0C(), getRigidity(track) * track.sign(), track.tpcSignal(), track.dcaZ(), track.dcaXY(), itsSigma);
histos.fill(HIST("hSpectra"), i, ptMomn, tpcNsigma, sign, collision.centFT0C(), track.dcaZ(), track.dcaXY(), getRapidity(track, i), track.eta());
}
fillhmassnsigma(track, i, tpcNsigma);
if ((std::abs(tpcNsigma) > cfgTrackPIDsettings2->get(i, "maxTPCnsigmaTOF")) && cfgTrackPIDsettings2->get(i, "useTPCnsigmaTOF") < 1)
continue;
fillhmass(track, i);

if (cfgRequirebetaplot) {
histos.fill(HIST("Tofsignal"), getRigidity(track) * track.sign(), o2::pid::tof::Beta::GetBeta(track));
}
}
if (track.tpcNClsFound() > cfgtpcNClsFound || track.itsNCls() > cfgitsNCls) {
histos.fill(HIST("Tpcsignal"), getRigidity(track) * track.sign(), track.tpcSignal());
}
histos.fill(HIST("histeta"), track.eta());
} // track loop
///////////////////////////////////////////////
Expand Down Expand Up @@ -420,7 +425,6 @@
if (std::abs(collision.posZ()) > cfgZvertex && cfgZvertexRequire)
continue;
collPassedEvSel = collision.sel8();
occupancy = collision.trackOccupancyInTimeRange();
if (!collPassedEvSel && cfgsel8Require)
continue;
histomc.fill(HIST("histNevReco"), 1.5);
Expand All @@ -429,6 +433,7 @@
histomc.fill(HIST("histCentFT0MReco"), collision.centFT0M());
if (collision.centFT0C() > centcut)
continue;
histomc.fill(HIST("histNevReco"), 2.5);
if (removeITSROFrameBorder && !collision.selection_bit(aod::evsel::kNoITSROFrameBorder))
continue;
if (removeNoSameBunchPileup && !collision.selection_bit(aod::evsel::kNoSameBunchPileup))
Expand Down Expand Up @@ -478,7 +483,7 @@
}
if (track.sign() < 0) {
sign = -1;
} // <- This redeclares a new local variable!
}
if (std::abs(getRapidity(track, i)) > cfgCutRapidity && cfgRapidityRequire)
continue;
if (track.tpcNClsFound() < cfgTrackPIDsettings->get(i, "minTPCnCls") && cfgTPCNClsfoundRequire)
Expand All @@ -500,8 +505,6 @@
continue;
if (getMeanItsClsSize(track) < cfgTrackPIDsettings->get(i, "minITSclsSize") && cfgminGetMeanItsClsSizeRequire)
continue;
if (getMeanItsClsSize(track) > cfgTrackPIDsettings->get(i, "maxITSclsSize") && cfgmaxGetMeanItsClsSizeRequire)
continue;

bool insideDCAxy = (std::abs(track.dcaXY()) <= (cfgTrackPIDsettings->get(i, "maxDcaXY") * (0.0105f + 0.0350f / std::pow(ptMomn, 1.1f)))); // o2-linter: disable=magic-number (To be checked)
if ((!(insideDCAxy) || std::abs(track.dcaZ()) > dcazSigma(ptMomn, cfgTrackPIDsettings->get(i, "maxDcaZ"))) && cfgDCAwithptRequire)
Expand All @@ -511,16 +514,20 @@
if ((std::abs(tpcNsigma) > cfgTrackPIDsettings->get(i, "maxTPCnSigma")) && cfgmaxTPCnSigmaRequire)
continue;
float itsSigma = getITSnSigma(track, primaryParticles.at(i));

if (itsSigma < cfgTrackPIDsettings2->get(i, "minITSnsigma") && cfgTrackPIDsettings2->get(i, "useITSnsigma") < 1)
continue;
if (itsSigma > cfgTrackPIDsettings2->get(i, "maxITSnsigma") && cfgTrackPIDsettings2->get(i, "useITSnsigma") < 1)
continue;
histos.fill(HIST("Tpcsignal"), getRigidity(track) * track.sign(), track.tpcSignal());

fillhmass(track, i);
if (cfgFillhspectra && cfgTrackPIDsettings2->get(i, "fillsparsh") == 1) {
histos.fill(HIST("hSpectra"), i, ptMomn, tpcNsigma, sign, collision.centFT0C(), getRigidity(track) * track.sign(), track.tpcSignal(), track.dcaZ(), track.dcaXY(), itsSigma);
histos.fill(HIST("hSpectra"), i, ptMomn, tpcNsigma, sign, collision.centFT0C(), track.dcaZ(), track.dcaXY(), getRapidity(track, i), track.eta());
}
fillhmassnsigma(track, i, tpcNsigma);
if ((std::abs(tpcNsigma) > cfgTrackPIDsettings2->get(i, "maxTPCnsigmaTOF")) && cfgTrackPIDsettings2->get(i, "useTPCnsigmaTOF") < 1)
continue;
fillhmass(track, i);

if (cfgRequirebetaplot) {
histos.fill(HIST("Tofsignal"), getRigidity(track) * track.sign(), o2::pid::tof::Beta::GetBeta(track));
}
Expand All @@ -545,12 +552,21 @@
float deltaPt = ptReco - ptGen;

if (pdg == -particlePdgCodes.at(4)) {
histomc.fill(HIST("histDeltaPtVsPtGenanti"), ptReco, deltaPt);
histomc.fill(HIST("histPIDtrackanti"), ptReco, track.pidForTracking());
}
if (pdg == particlePdgCodes.at(4)) {
histomc.fill(HIST("histDeltaPtVsPtGen"), ptReco, deltaPt);
histomc.fill(HIST("histPIDtrack"), ptReco, track.pidForTracking());
}

if (pdg == -particlePdgCodes.at(5)) {
histomc.fill(HIST("histDeltaPtVsPtGenHe4anti"), ptReco, deltaPt);
}
if (pdg == particlePdgCodes.at(5)) {
histomc.fill(HIST("histDeltaPtVsPtGenHe4"), ptReco, deltaPt);
}

if (pdg == particlePdgCodes.at(4)) {
histomc.fill(HIST("histPtRecoHe3"), ptReco);
} else if (pdg == -particlePdgCodes.at(4)) {
Expand Down Expand Up @@ -628,14 +644,15 @@
if (!track.hasTOF() || !cfgFillmass)
return;
float beta{o2::pid::tof::Beta::GetBeta(track)};
if (beta <= 0.f || beta >= 1.f)
const float eps = 1e-6f;
if (beta < eps || beta > 1.0f - eps)
return;
float charge = (species == he3 || species == he4) ? 2.f : 1.f;
float p = getRigidity(track); // assuming this is the momentum from inner TPC
float massTOF = p * charge * std::sqrt(1.f / (beta * beta) - 1.f);
// get PDG mass
float pdgMass = particleMasses[species];
float massDiff = massTOF - pdgMass;
float massDiff = massTOF * massTOF - pdgMass * pdgMass;
float ptMomn;
setTrackParCov(track, mTrackParCov);
mTrackParCov.setPID(track.pidForTracking());
Expand All @@ -648,6 +665,29 @@
}
//----------------------------------------------------------------------------------------------------------------
template <class T>
void fillhmassnsigma(T const& track, int species, float sigma)
{
if (!track.hasTOF() || !cfgFillmassnsigma)
return;
float beta{o2::pid::tof::Beta::GetBeta(track)};
const float eps = 1e-6f;
if (beta < eps || beta > 1.0f - eps)
return;
float charge = (species == he3 || species == he4) ? 2.f : 1.f;
float p = getRigidity(track); // assuming this is the momentum from inner TPC
float massTOF = p * charge * std::sqrt(1.f / (beta * beta) - 1.f);
// get PDG mass
float pdgMass = particleMasses[species];
float massDiff = massTOF * massTOF - pdgMass * pdgMass;

if (track.sign() > 0) {
hmassnsigma[2 * species]->Fill(sigma, massDiff);
} else if (track.sign() < 0) {
hmassnsigma[2 * species + 1]->Fill(sigma, massDiff);
}
}
//----------------------------------------------------------------------------------------------------------------
template <class T>
float getTPCnSigma(T const& track, PrimParticles& particle)
{
const float rigidity = getRigidity(track);
Expand Down
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