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[PWGCF] Add shift to flowSP #16812

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Merged
wenyaCern merged 4 commits into from
Jun 25, 2026
+15 −9
Merged

[PWGCF] Add shift to flowSP #16812

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5179f52
Add shift to flowSP
cnkoster Jun 25, 2026
e1346a2
Please consider the following formatting changes
alibuild Jun 25, 2026
dfade3f
Merge pull request #100 from alibuild/alibot-cleanup-16812
cnkoster Jun 25, 2026
5e5575c
move histos to place where they are always added and filled
cnkoster Jun 25, 2026
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24 changes: 15 additions & 9 deletions PWGCF/Flow/Tasks/flowSP.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -118,13 +118,13 @@ struct FlowSP {
O2_DEFINE_CONFIGURABLE(cCentNGlobal, bool, false, "Set centrality estimator to CentNGlobal");
// Standard selections
O2_DEFINE_CONFIGURABLE(cTrackSelsDCAxy, float, 0.2, "Cut on DCA in the transverse direction (cm)");
O2_DEFINE_CONFIGURABLE(cTrackSelsDCAz, float, 2, "Cut on DCA in the longitudinal direction (cm)");
O2_DEFINE_CONFIGURABLE(cTrackSelsDCAz, float, 0.2, "Cut on DCA in the longitudinal direction (cm)");
O2_DEFINE_CONFIGURABLE(cTrackSelsNcls, float, 70, "Cut on number of TPC clusters found");
O2_DEFINE_CONFIGURABLE(cTrackSelsFshcls, float, 0.4, "Cut on fraction of shared TPC clusters found");
O2_DEFINE_CONFIGURABLE(cTrackSelsPtmin, float, 0.2, "minimum pt (GeV/c)");
O2_DEFINE_CONFIGURABLE(cTrackSelsPtmax, float, 10, "maximum pt (GeV/c)");
O2_DEFINE_CONFIGURABLE(cTrackSelsEta, float, 0.8, "eta cut");
O2_DEFINE_CONFIGURABLE(cIsMCReco, bool, true, "Is MC Reco");
O2_DEFINE_CONFIGURABLE(cIsMCReco, bool, false, "Is MC Reco");
O2_DEFINE_CONFIGURABLE(cEvSelsVtxZ, float, 10, "vertex cut (cm)");
O2_DEFINE_CONFIGURABLE(cMagField, float, 99999, "Configurable magnetic field;default CCDB will be queried");
O2_DEFINE_CONFIGURABLE(cCentMin, float, 0, "Minimum cenrality for selected events");
Expand Down Expand Up @@ -469,7 +469,6 @@ struct FlowSP {
histos.add("QA/after/PsiA_vs_Vz", "", {HistType::kTH2D, {axisPhiPlane, axisVz}});
histos.add("QA/after/PsiC_vs_Vz", "", {HistType::kTH2D, {axisPhiPlane, axisVz}});
histos.add("QA/after/PsiFull_vs_Vz", "", {HistType::kTH2D, {axisPhiPlane, axisVz}});
// histos.add("QA/after/DeltaPsivsPx", "", {HistType::kTH3D, {axisCent, axisPhiPlane, axisPx}});
}

if (cfg.cFillQABefore) {
Expand Down Expand Up @@ -571,6 +570,8 @@ struct FlowSP {
registry.add<TProfile>("QQCorrelations/qAXqCY", "", kTProfile, {axisCent});
registry.add<TProfile>("QQCorrelations/qAYqCX", "", kTProfile, {axisCent});
registry.add<TProfile>("QQCorrelations/qAXYqCXY", "", kTProfile, {axisCent});
registry.add<TProfile3D>("shift/ShiftZDCC", "ShiftZDCC", kTProfile3D, {{100, 0, 100}, {2, 0, 2}, {10, 0, 10}});
registry.add<TProfile3D>("shift/ShiftZDCA", "ShiftZDCA", kTProfile3D, {{100, 0, 100}, {2, 0, 2}, {10, 0, 10}});

if (cfg.cFillGeneralV1Histos) {
// track properties per centrality and per eta, pt bin
Expand Down Expand Up @@ -626,8 +627,7 @@ struct FlowSP {
registry.add<TProfile3D>("incl/vnFull_EP", "", kTProfile3D, {axisPt, axisEtaVn, axisCentrality});
}
if (cfg.cFillEventPlaneQA) {
histos.add<TH1>("QA/hSPplaneA", "hSPplaneA", kTH1D, {axisPhiPlane});
histos.add<TH1>("QA/hSPplaneC", "hSPplaneC", kTH1D, {axisPhiPlane});
histos.add<TH2>("QA/hSPplaneAC", "hSPplaneAC", kTH2D, {axisPhiPlane, axisPhiPlane});
histos.add<TH1>("QA/hSPplaneFull", "hSPplaneFull", kTH1D, {axisPhiPlane});
histos.add<TProfile>("QA/hCosPhiACosPhiC", "hCosPhiACosPhiC; Centrality(%); #LT Cos(#Psi^{A})Cos(#Psi^{C})#GT", kTProfile, {axisCent});
histos.add<TProfile>("QA/hSinPhiASinPhiC", "hSinPhiASinPhiC; Centrality(%); #LT Sin(#Psi^{A})Sin(#Psi^{C})#GT", kTProfile, {axisCent});
Expand Down Expand Up @@ -1178,7 +1178,6 @@ struct FlowSP {
histos.fill(HIST("QA/") + HIST(Time[ft]) + HIST("/PsiA_vs_Vz"), psiA, collision.posZ(), spm.centWeight);
histos.fill(HIST("QA/") + HIST(Time[ft]) + HIST("/PsiC_vs_Vz"), psiC, collision.posZ(), spm.centWeight);
histos.fill(HIST("QA/") + HIST(Time[ft]) + HIST("/PsiFull_vs_Vz"), psiFull, collision.posZ(), spm.centWeight);
// histos.fill(HIST("QA/") + HIST(Time[ft]) + HIST("/DeltaPsivsPx"), spm.centrality, psiA - psiC - constants::math::PI, track.px(), spm.centWeight);
}
}
return;
Expand Down Expand Up @@ -1424,6 +1423,8 @@ struct FlowSP {
spm.psiA = 1.0 * std::atan2(spm.qyA, spm.qxA);
spm.psiC = 1.0 * std::atan2(spm.qyC, spm.qxC);

int nshift = 10; // no. of iterations

// https://twiki.cern.ch/twiki/pub/ALICE/DirectedFlowAnalysisNote/vn_ZDC_ALICE_INT_NOTE_version02.pdf
spm.psiFull = 1.0 * std::atan2(spm.qyA + spm.qyC, spm.qxA + spm.qxC);

Expand All @@ -1434,13 +1435,18 @@ struct FlowSP {
registry.fill(HIST("QQCorrelations/qAXYqCXY"), spm.centrality, spm.qyA * spm.qxC + spm.qxA * spm.qyC);
registry.fill(HIST("QQCorrelations/qAqCX"), spm.centrality, spm.qxA * spm.qxC);
registry.fill(HIST("QQCorrelations/qAqCY"), spm.centrality, spm.qyA * spm.qyC);
for (int ishift = 1; ishift <= nshift; ishift++) {
registry.fill(HIST("shift/ShiftZDCC"), spm.centrality, 0.5, ishift - 0.5, std::sin(ishift * 1.0 * spm.psiC));
registry.fill(HIST("shift/ShiftZDCC"), spm.centrality, 1.5, ishift - 0.5, std::cos(ishift * 1.0 * spm.psiC));
registry.fill(HIST("shift/ShiftZDCA"), spm.centrality, 0.5, ishift - 0.5, std::sin(ishift * 1.0 * spm.psiA));
registry.fill(HIST("shift/ShiftZDCA"), spm.centrality, 1.5, ishift - 0.5, std::cos(ishift * 1.0 * spm.psiA));
}

if (cfg.cFillEventQA) {
histos.fill(HIST("QA/hCentFull"), spm.centrality, 1);
}
if (cfg.cFillEventPlaneQA) {
histos.fill(HIST("QA/hSPplaneA"), spm.psiA, 1);
histos.fill(HIST("QA/hSPplaneC"), spm.psiC, 1);
histos.fill(HIST("QA/hSPplaneAC"), spm.psiA, spm.psiC, 1);
histos.fill(HIST("QA/hSPplaneFull"), spm.psiFull, 1);
histos.fill(HIST("QA/hCosPhiACosPhiC"), spm.centrality, std::cos(spm.psiA) * std::cos(spm.psiC));
histos.fill(HIST("QA/hSinPhiASinPhiC"), spm.centrality, std::sin(spm.psiA) * std::sin(spm.psiC));
Expand Down Expand Up @@ -1499,7 +1505,7 @@ struct FlowSP {
}

// Always fill centrality histogram after event selections!
histos.fill(HIST("hCentralityCW"), spm.centrality);
histos.fill(HIST("hCentralityCW"), spm.centrality, spm.centWeight);

fillEventQA<kAfter>(collision, tracks);

Expand Down
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