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[PWGLF] Added 2(phi-psi) axis for inv mass #9731

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Merged
dmallick2 merged 3 commits into from
Feb 4, 2025
Merged

[PWGLF] Added 2(phi-psi) axis for inv mass #9731

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ac776a4
Added 2(phi-psi) axis for inv mass
SuJeong-Ji Feb 4, 2025
976aa36
Please consider the following formatting changes
alibuild Feb 4, 2025
0a2f431
Merge pull request #8 from alibuild/alibot-cleanup-9731
SuJeong-Ji Feb 4, 2025
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14 changes: 8 additions & 6 deletions PWGLF/Tasks/Resonances/chk892Flow.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -117,8 +117,9 @@ struct Chk892Flow {
Configurable<int> cNbinsDiv{"cNbinsDiv", 1, "Integer to divide the number of bins"};
Configurable<int> cNbinsDivQA{"cNbinsDivQA", 1, "Integer to divide the number of bins for QA"};
ConfigurableAxis cfgAxisV2{"cfgAxisV2", {200, -2, 2}, "Binning of the v2 axis"};
ConfigurableAxis cfgAxisPhi{"cfgAxisPhi", {8, 0, constants::math::PI}, "Binning of the #phi axis"};

/// Event cuts
// Event cuts
o2::analysis::CollisonCuts colCuts;
Configurable<float> cfgEvtZvtx{"cfgEvtZvtx", 10.f, "Evt sel: Max. z-Vertex (cm)"};
Configurable<int> cfgEvtOccupancyInTimeRangeMax{"cfgEvtOccupancyInTimeRangeMax", -1, "Evt sel: maximum track occupancy"};
Expand Down Expand Up @@ -245,6 +246,7 @@ struct Chk892Flow {
AxisSpec ptAxis = {cfgBinsPt, "#it{p}_{T} (GeV/#it{c})"};
AxisSpec ptAxisQA = {cfgBinsPtQA, "#it{p}_{T} (GeV/#it{c})"};
AxisSpec v2Axis = {cfgAxisV2, "#v_{2}"};
AxisSpec phiAxis = {cfgAxisPhi, "2(#phi-#Psi_{2})"};
AxisSpec radiusAxis = {50, 0, 5, "Radius (cm)"};
AxisSpec cpaAxis = {30, 0.97, 1.0, "CPA"};
AxisSpec tauAxis = {250, 0, 25, "Lifetime (cm)"};
Expand Down Expand Up @@ -341,8 +343,8 @@ struct Chk892Flow {

// Kstar
// Invariant mass nSparse
histos.add("hInvmass_Kstar", "Invariant mass of unlike-sign chK(892)", HistType::kTHnSparseD, {axisType, centAxis, ptAxis, invMassAxisReso, v2Axis});
histos.add("hInvmass_K0s", "Invariant mass of unlike-sign K0s", HistType::kTHnSparseD, {centAxis, ptAxis, invMassAxisK0s, v2Axis});
histos.add("hInvmass_Kstar", "Invariant mass of unlike-sign chK(892)", HistType::kTHnSparseD, {axisType, centAxis, ptAxis, invMassAxisReso, v2Axis, phiAxis});
histos.add("hInvmass_K0s", "Invariant mass of unlike-sign K0s", HistType::kTHnSparseD, {centAxis, ptAxis, invMassAxisK0s, v2Axis, phiAxis});

// Mass QA (quick check)
histos.add("QA/before/KstarRapidity", "Rapidity distribution of chK(892)", HistType::kTH1D, {yAxis});
Expand Down Expand Up @@ -821,7 +823,7 @@ struct Chk892Flow {
histos.fill(HIST("QA/after/hInvmassSecondary"), trkkMass);

histos.fill(HIST("QA/after/k0sv2vsinvmass"), lResoSecondary.M(), v2K0s);
histos.fill(HIST("hInvmass_K0s"), lCentrality, lResoSecondary.Pt(), lResoSecondary.M(), v2K0s);
histos.fill(HIST("hInvmass_K0s"), lCentrality, lResoSecondary.Pt(), lResoSecondary.M(), v2K0s, static_cast<float>(nmode) * lPhiMinusPsiK0s);
}
k0sIndicies.push_back(k0sCand.index());
}
Expand Down Expand Up @@ -854,7 +856,7 @@ struct Chk892Flow {
histos.fill(HIST("QA/after/KstarRapidity"), lResoKstar.Rapidity());
histos.fill(HIST("QA/after/kstarinvmass"), lResoKstar.M());
histos.fill(HIST("QA/after/kstarv2vsinvmass"), lResoKstar.M(), v2Kstar);
histos.fill(HIST("hInvmass_Kstar"), typeKstar, lCentrality, lResoKstar.Pt(), lResoKstar.M(), v2Kstar);
histos.fill(HIST("hInvmass_Kstar"), typeKstar, lCentrality, lResoKstar.Pt(), lResoKstar.M(), v2Kstar, static_cast<float>(nmode) * lPhiMinusPsiKstar);

if (cfgFillRotBkg) {
for (int i = 0; i < cfgNrotBkg; i++) {
Expand All @@ -872,7 +874,7 @@ struct Chk892Flow {
auto lPhiMinusPsiKstar = RecoDecay::constrainAngle(lResonanceRot.Phi() - lEPDet, 0.0, 2); // constrain angle to range 0, Pi
auto v2Kstar = std::cos(static_cast<float>(nmode) * lPhiMinusPsiKstar);
typeKstar = bTrack.sign() > 0 ? BinType::kKstarP_Rot : BinType::kKstarN_Rot;
histos.fill(HIST("hInvmass_Kstar"), typeKstar, lCentrality, lResonanceRot.Pt(), lResonanceRot.M(), v2Kstar);
histos.fill(HIST("hInvmass_Kstar"), typeKstar, lCentrality, lResonanceRot.Pt(), lResonanceRot.M(), v2Kstar, static_cast<float>(nmode) * lPhiMinusPsiKstar);
}
}
} // IsMix
Expand Down
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