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[PWGCF] fix some bugs in flowGfwOmegaXi.cxx #16458

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Merged
wenyaCern merged 4 commits into from
May 29, 2026
+27 −15
Merged

[PWGCF] fix some bugs in flowGfwOmegaXi.cxx #16458

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fuchuncui May 29, 2026
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fuchuncui May 29, 2026
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fuchuncui May 29, 2026
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42 changes: 27 additions & 15 deletions PWGCF/Flow/Tasks/flowGfwOmegaXi.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -116,8 +116,10 @@ struct FlowGfwOmegaXi {
O2_DEFINE_CONFIGURABLE(cfgv0_dcadaupitopv, float, 0.01f, "minimum daughter pion DCA to PV")
O2_DEFINE_CONFIGURABLE(cfgv0_dcadauprtopv, float, 0.1f, "minimum daughter proton DCA to PV")
O2_DEFINE_CONFIGURABLE(cfgv0_dcav0dau, float, 0.5f, "maximum DCA among V0 daughters")
O2_DEFINE_CONFIGURABLE(cfgv0_mk0swindow, float, 0.1f, "Invariant mass window of K0s")
O2_DEFINE_CONFIGURABLE(cfgv0_mlambdawindow, float, 0.04f, "Invariant mass window of lambda")
O2_DEFINE_CONFIGURABLE(cfgv0_mk0slow, float, 0.4f, "minimun invariant mass cut of K0s")
O2_DEFINE_CONFIGURABLE(cfgv0_mk0shigh, float, 0.6f, "maximum invariant mass cut of K0s")
O2_DEFINE_CONFIGURABLE(cfgv0_mlambdalow, float, 1.08f, "minimun invariant mass cut of lambda")
O2_DEFINE_CONFIGURABLE(cfgv0_mlambdahigh, float, 1.16f, "maximum invariant mass cut of lambda")
O2_DEFINE_CONFIGURABLE(cfgv0_ArmPodocut, float, 0.2f, "Armenteros Podolski cut for K0")
O2_DEFINE_CONFIGURABLE(cfgv0_compmassrejLambda, float, 0.01f, "competing mass rejection of lambda")
O2_DEFINE_CONFIGURABLE(cfgv0_compmassrejK0s, float, 0.005f, "competing mass rejection of K0s")
Expand Down Expand Up @@ -213,6 +215,7 @@ struct FlowGfwOmegaXi {
O2_DEFINE_CONFIGURABLE(cfgOutputLocDenWeights, bool, false, "Fill and output local density weights")
O2_DEFINE_CONFIGURABLE(cfgOutputQA, bool, false, "do QA")
O2_DEFINE_CONFIGURABLE(cfgUseT0MCent, bool, false, "Use T0M cent")
O2_DEFINE_CONFIGURABLE(cfgcheckhole, bool, true, "Check and reject vtxz-eta-phi hole")

ConfigurableAxis cfgaxisVertex{"cfgaxisVertex", {20, -10, 10}, "vertex axis for histograms"};
ConfigurableAxis cfgaxisPhi{"cfgaxisPhi", {60, 0.0, constants::math::TwoPI}, "phi axis for histograms"};
Expand All @@ -233,7 +236,7 @@ struct FlowGfwOmegaXi {
AxisSpec axisMultiplicity{{0, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90}, "Centrality (%)"};

Filter collisionFilter = nabs(aod::collision::posZ) < cfgCutVertex;
Filter trackFilter = (nabs(aod::track::eta) < trkQualityOpts.cfgCutEta.value) && (aod::track::pt > trkQualityOpts.cfgCutPtPOIMin.value) && (aod::track::pt < trkQualityOpts.cfgCutPtPOIMax.value) && ((requireGlobalTrackInFilter()) || (aod::track::isGlobalTrackSDD == (uint8_t)true)) && (aod::track::tpcChi2NCl < cfgCutChi2prTPCcls) && (nabs(aod::track::dcaZ) < trkQualityOpts.cfgCutDCAz.value) && (nabs(aod::track::dcaXY) < trkQualityOpts.cfgCutDCAxy.value);
Filter trackFilter = (nabs(aod::track::eta) < trkQualityOpts.cfgCutEta.value) && ((requireGlobalTrackInFilter()) || (aod::track::isGlobalTrackSDD == (uint8_t)true)) && (aod::track::tpcChi2NCl < cfgCutChi2prTPCcls);

using TracksPID = soa::Join<aod::pidTPCPi, aod::pidTPCKa, aod::pidTPCPr, aod::pidTOFPi, aod::pidTOFKa, aod::pidTOFPr>;
using AodTracks = soa::Filtered<soa::Join<aod::Tracks, aod::TrackSelection, o2::aod::TrackSelectionExtension, aod::TracksExtra, TracksPID, aod::TracksIU, aod::TracksDCA>>; // tracks filter
Expand Down Expand Up @@ -959,10 +962,17 @@ struct FlowGfwOmegaXi {
if (eff <= 0)
return false;
weight_nue = 1. / eff;
if (mAcceptance.size() == static_cast<uint64_t>(nspecies))
if (mAcceptance.size() == static_cast<uint64_t>(nspecies)) {
weight_nua = mAcceptance[ispecies]->getNUA(track.phi(), track.eta(), vtxz);
else
if (cfgcheckhole) {
float checkleft = mAcceptance[ispecies]->getNUA(1, track.eta(), vtxz);
float checkright = mAcceptance[ispecies]->getNUA(2, track.eta(), vtxz);
if (weight_nua == 1 && checkleft == 1 && checkright == 1)
return false;
}
} else {
weight_nua = 1;
}
return true;
}

Expand Down Expand Up @@ -1132,6 +1142,11 @@ struct FlowGfwOmegaXi {
}
if ((track.tpcNClsFound() <= trkQualityOpts.cfgTPCNCls.value) || (track.tpcNClsCrossedRows() <= trkQualityOpts.cfgTPCCrossedRows.value) || (track.itsNCls() <= trkQualityOpts.cfgChITSNCls.value))
continue;
if ((track.pt() < trkQualityOpts.cfgCutPtPOIMin.value) || (track.pt() > trkQualityOpts.cfgCutPtPOIMax.value))
continue;
if ((std::fabs(track.dcaZ()) > trkQualityOpts.cfgCutDCAz.value) || (std::fabs(track.dcaXY()) > trkQualityOpts.cfgCutDCAxy.value))
continue;

registry.fill(HIST("hPhi"), track.phi());
registry.fill(HIST("hPhicorr"), track.phi(), wacc);
registry.fill(HIST("hEta"), track.eta());
Expand Down Expand Up @@ -1190,7 +1205,7 @@ struct FlowGfwOmegaXi {
// K0short
if (v0.pt() > trkQualityOpts.cfgCutPtK0sMin.value && v0.pt() < trkQualityOpts.cfgCutPtK0sMax.value) {
if (v0.qtarm() / std::fabs(v0.alpha()) > v0BuilderOpts.cfgv0_ArmPodocut.value &&
std::fabs(v0.mK0Short() - o2::constants::physics::MassK0Short) < v0BuilderOpts.cfgv0_mk0swindow.value &&
v0.mK0Short() > v0BuilderOpts.cfgv0_mk0slow.value && v0.mK0Short() < v0BuilderOpts.cfgv0_mk0shigh.value &&
(std::fabs(v0posdau.tpcNSigmaPi()) < cfgNSigma[0] && std::fabs(v0negdau.tpcNSigmaPi()) < cfgNSigma[0]) &&
((std::fabs(v0.tofNSigmaK0PiPlus()) < cfgNSigma[3] || v0posdau.pt() < lowpt) && (std::fabs(v0.tofNSigmaK0PiMinus()) < cfgNSigma[3] || v0negdau.pt() < lowpt)) &&
((std::fabs(itsResponse.nSigmaITS<o2::track::PID::Pion>(v0posdau)) < cfgNSigma[6]) || v0posdau.pt() > lowpt) && ((std::fabs(itsResponse.nSigmaITS<o2::track::PID::Pion>(v0negdau)) < cfgNSigma[6]) || v0negdau.pt() > lowpt)) {
Expand All @@ -1203,14 +1218,14 @@ struct FlowGfwOmegaXi {
}
// Lambda and antiLambda
if (v0.pt() > trkQualityOpts.cfgCutPtLambdaMin.value && v0.pt() < trkQualityOpts.cfgCutPtLambdaMax.value) {
if (std::fabs(v0.mLambda() - o2::constants::physics::MassLambda) < v0BuilderOpts.cfgv0_mlambdawindow.value &&
if (v0.mLambda() > v0BuilderOpts.cfgv0_mlambdalow.value && v0.mLambda() < v0BuilderOpts.cfgv0_mlambdahigh.value &&
(std::fabs(v0posdau.tpcNSigmaPr()) < cfgNSigma[1] && std::fabs(v0negdau.tpcNSigmaPi()) < cfgNSigma[0]) &&
((std::fabs(v0.tofNSigmaLaPr()) < cfgNSigma[4] || v0posdau.pt() < lowpt) && (std::fabs(v0.tofNSigmaLaPi()) < cfgNSigma[3] || v0negdau.pt() < lowpt)) &&
((std::fabs(itsResponse.nSigmaITS<o2::track::PID::Proton>(v0posdau)) < cfgNSigma[7]) || v0posdau.pt() > lowpt) && ((std::fabs(itsResponse.nSigmaITS<o2::track::PID::Pion>(v0negdau)) < cfgNSigma[6]) || v0negdau.pt() > lowpt)) {
registry.fill(HIST("InvMassLambda_all"), v0.pt(), v0.mLambda(), v0.eta(), cent);
isLambda = true;
}
if (std::fabs(v0.mAntiLambda() - o2::constants::physics::MassLambda) < v0BuilderOpts.cfgv0_mlambdawindow.value &&
if (v0.mAntiLambda() > v0BuilderOpts.cfgv0_mlambdalow.value && v0.mAntiLambda() < v0BuilderOpts.cfgv0_mlambdahigh.value &&
(std::fabs(v0negdau.tpcNSigmaPr()) < cfgNSigma[1] && std::fabs(v0posdau.tpcNSigmaPi()) < cfgNSigma[0]) &&
((std::fabs(v0.tofNSigmaALaPr()) < cfgNSigma[4] || v0negdau.pt() < lowpt) && (std::fabs(v0.tofNSigmaALaPi()) < cfgNSigma[3] || v0posdau.pt() < lowpt)) &&
((std::fabs(itsResponse.nSigmaITS<o2::track::PID::Proton>(v0negdau)) < cfgNSigma[7]) || v0posdau.pt() > lowpt) && ((std::fabs(itsResponse.nSigmaITS<o2::track::PID::Pion>(v0posdau)) < cfgNSigma[6]) || v0negdau.pt() > lowpt)) {
Expand Down Expand Up @@ -1399,9 +1414,9 @@ struct FlowGfwOmegaXi {
}
registry.fill(HIST("correction/hRunNumberPhiEtaVertexLambda"), matchedPosition, v0.phi(), v0.eta(), vtxz);
if (isLambda)
registry.fill(HIST("correction/hPhiEtaInvmassLambda"), matchedPosition, v0.phi(), v0.eta(), v0.mLambda());
registry.fill(HIST("correction/hPhiEtaInvmassLambda"), v0.phi(), v0.eta(), v0.mLambda());
if (isALambda)
registry.fill(HIST("correction/hPhiEtaInvmassLambda"), matchedPosition, v0.phi(), v0.eta(), v0.mAntiLambda());
registry.fill(HIST("correction/hPhiEtaInvmassLambda"), v0.phi(), v0.eta(), v0.mAntiLambda());
}
}
}
Expand Down Expand Up @@ -2244,7 +2259,6 @@ struct FlowGfwOmegaXi {
// K0short
if (std::abs(pdgCode) == kK0Short) {
if (v0.qtarm() / std::fabs(v0.alpha()) > v0BuilderOpts.cfgv0_ArmPodocut.value &&
std::fabs(v0.mK0Short() - o2::constants::physics::MassK0Short) < v0BuilderOpts.cfgv0_mk0swindow.value &&
(std::fabs(v0posdau.tpcNSigmaPi()) < cfgNSigma[0] && std::fabs(v0negdau.tpcNSigmaPi()) < cfgNSigma[0])) {
if (cfgDoAccEffCorr)
setCurrentParticleWeights(weff, wacc, v0, vtxz, 1);
Expand All @@ -2260,8 +2274,7 @@ struct FlowGfwOmegaXi {
}
}
// Lambda and antiLambda
if (std::fabs(v0.mLambda() - o2::constants::physics::MassLambda) < v0BuilderOpts.cfgv0_mlambdawindow.value &&
(std::fabs(v0posdau.tpcNSigmaPr()) < cfgNSigma[1] && std::fabs(v0negdau.tpcNSigmaPi()) < cfgNSigma[0])) {
if ((std::fabs(v0posdau.tpcNSigmaPr()) < cfgNSigma[1] && std::fabs(v0negdau.tpcNSigmaPi()) < cfgNSigma[0])) {
if (std::abs(pdgCode) == kLambda0) {
if (cfgDoAccEffCorr)
setCurrentParticleWeights(weff, wacc, v0, vtxz, 2);
Expand All @@ -2275,8 +2288,7 @@ struct FlowGfwOmegaXi {
}
fGFW->Fill(v0Eta, fLambdaPtAxis->FindBin(v0Pt) - 1, v0Phi, wacc * weff * wloc, 16);
}
} else if (std::fabs(v0.mLambda() - o2::constants::physics::MassLambda) < v0BuilderOpts.cfgv0_mlambdawindow.value &&
(std::fabs(v0negdau.tpcNSigmaPr()) < cfgNSigma[1] && std::fabs(v0posdau.tpcNSigmaPi()) < cfgNSigma[0])) {
} else if ((std::fabs(v0negdau.tpcNSigmaPr()) < cfgNSigma[1] && std::fabs(v0posdau.tpcNSigmaPi()) < cfgNSigma[0])) {
if (std::abs(pdgCode) == kLambda0) {
if (cfgDoAccEffCorr)
setCurrentParticleWeights(weff, wacc, v0, vtxz, 2);
Expand Down
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