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[PWGDQ] Add coherent Jpsi A2 definition in FillPairMC #16912

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[PWGDQ] Add coherent Jpsi A2 definition in FillPairMC #16912

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0f1bacf
add A2 in MC
ypwangg Jul 3, 2026
ab4fa43
fix bug
ypwangg Jul 3, 2026
6617cfd
fix bug in VM daughter direction
ypwangg Jul 3, 2026
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25 changes: 25 additions & 0 deletions PWGDQ/Core/VarManager.h
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Original file line number Diff line number Diff line change
Expand Up @@ -822,6 +822,14 @@
kCos2DeltaPhiPP_TPC,
kCos2DeltaPhiPP_FT0A,
kCos2DeltaPhiPP_FT0C,
kDeltaPhiRP_Random,
kDeltaPhiRP_MC,
kCos2DeltaPhiRP_Random,
kCos2DeltaPhiRP_MC,
kDeltaPhiPP_Random,
kDeltaPhiPP_MC,
kCos2DeltaPhiPP_Random,
kCos2DeltaPhiPP_MC,
kNullA2,
kInfA2,
kSel1, // if track1 is used in TPC Q vector calculation
Expand Down Expand Up @@ -1874,9 +1882,9 @@
}
if constexpr ((fillMap & MuonCov) > 0 || (fillMap & ReducedMuonCov) > 0) {
o2::dataformats::GlobalFwdTrack propmuon = PropagateMuon(muontrack, collision);
double px = propmuon.getP() * sin(M_PI / 2 - atan(mfttrack.tgl())) * cos(mfttrack.phi());

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double py = propmuon.getP() * sin(M_PI / 2 - atan(mfttrack.tgl())) * sin(mfttrack.phi());

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double pz = propmuon.getP() * cos(M_PI / 2 - atan(mfttrack.tgl()));

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double pt = std::sqrt(std::pow(px, 2) + std::pow(py, 2));
auto mftprop = o2::aod::fwdtrackutils::getTrackParCovFwdShift(mfttrack, fgzShiftFwd);
values[kX] = mftprop.getX();
Expand Down Expand Up @@ -4632,6 +4640,23 @@
ROOT::Math::XYZVector zaxisTrue = ROOT::Math::XYZVector(TMath::Cos(values[kMCEventPlaneAngle]), TMath::Sin(values[kMCEventPlaneAngle]), 0).Unit();
values[kMCCosThetaStar] = v_CM.Dot(zaxisTrue);
}

if (fgUsedVars[kCos2DeltaPhiRP_Random] || fgUsedVars[kCos2DeltaPhiPP_Random] || fgUsedVars[kCos2DeltaPhiRP_MC] || fgUsedVars[kCos2DeltaPhiPP_MC]) {
ROOT::Math::Boost boostv12{v12.BoostToCM()};
ROOT::Math::PtEtaPhiMVector v_daughter = boostv12(t1.pdgCode() > 0 ? v1 : v2);

// reaction plane
float phi = v_daughter.Phi() > TMath::Pi() ? v_daughter.Phi() - 2. * TMath::Pi() : v_daughter.Phi();
values[kDeltaPhiRP_Random] = phi - values[kRandomPsi2];
values[kDeltaPhiRP_Random] = values[kDeltaPhiRP_Random] > TMath::Pi() ? 2. * TMath::Pi() - values[kDeltaPhiRP_Random] : values[kDeltaPhiRP_Random];
values[kDeltaPhiRP_MC] = phi - values[kMCEventPlaneAngle];
values[kDeltaPhiRP_MC] = values[kDeltaPhiRP_MC] > TMath::Pi() ? 2. * TMath::Pi() - values[kDeltaPhiRP_MC] : values[kDeltaPhiRP_MC];
// fold delta phi into [-pi/2, pi/2]
values[kDeltaPhiRP_Random] = values[kDeltaPhiRP_Random] > TMath::Pi() / 2. ? TMath::Pi() - values[kDeltaPhiRP_Random] : values[kDeltaPhiRP_Random];
values[kDeltaPhiRP_MC] = values[kDeltaPhiRP_MC] > TMath::Pi() / 2. ? TMath::Pi() - values[kDeltaPhiRP_MC] : values[kDeltaPhiRP_MC];
values[kCos2DeltaPhiRP_Random] = TMath::Cos(2. * (phi - values[kRandomPsi2]));
values[kCos2DeltaPhiRP_MC] = TMath::Cos(2. * (phi - values[kMCEventPlaneAngle]));
}
}

template <int candidateType, typename T1, typename T2, typename T3>
Expand Down Expand Up @@ -4945,13 +4970,13 @@
values[kVertexingLxyErr] = (KFPV.GetCovariance(0) + KFGeoTwoProng.GetCovariance(0)) * dxPair2PV * dxPair2PV + (KFPV.GetCovariance(2) + KFGeoTwoProng.GetCovariance(2)) * dyPair2PV * dyPair2PV + 2 * ((KFPV.GetCovariance(1) + KFGeoTwoProng.GetCovariance(1)) * dxPair2PV * dyPair2PV);
values[kVertexingLzErr] = (KFPV.GetCovariance(5) + KFGeoTwoProng.GetCovariance(5)) * dzPair2PV * dzPair2PV;
values[kVertexingLxyzErr] = (KFPV.GetCovariance(0) + KFGeoTwoProng.GetCovariance(0)) * dxPair2PV * dxPair2PV + (KFPV.GetCovariance(2) + KFGeoTwoProng.GetCovariance(2)) * dyPair2PV * dyPair2PV + (KFPV.GetCovariance(5) + KFGeoTwoProng.GetCovariance(5)) * dzPair2PV * dzPair2PV + 2 * ((KFPV.GetCovariance(1) + KFGeoTwoProng.GetCovariance(1)) * dxPair2PV * dyPair2PV + (KFPV.GetCovariance(3) + KFGeoTwoProng.GetCovariance(3)) * dxPair2PV * dzPair2PV + (KFPV.GetCovariance(4) + KFGeoTwoProng.GetCovariance(4)) * dyPair2PV * dzPair2PV);
if (fabs(values[kVertexingLxy]) < 1.e-8f)

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values[kVertexingLxy] = 1.e-8f;
values[kVertexingLxyErr] = values[kVertexingLxyErr] < 0. ? 1.e8f : std::sqrt(values[kVertexingLxyErr]) / values[kVertexingLxy];
if (fabs(values[kVertexingLz]) < 1.e-8f)

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values[kVertexingLz] = 1.e-8f;
values[kVertexingLzErr] = values[kVertexingLzErr] < 0. ? 1.e8f : std::sqrt(values[kVertexingLzErr]) / values[kVertexingLz];
if (fabs(values[kVertexingLxyz]) < 1.e-8f)

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values[kVertexingLxyz] = 1.e-8f;
values[kVertexingLxyzErr] = values[kVertexingLxyzErr] < 0. ? 1.e8f : std::sqrt(values[kVertexingLxyzErr]) / values[kVertexingLxyz];
values[kVertexingTauxy] = KFGeoTwoProng.GetPseudoProperDecayTime(KFPV, KFGeoTwoProng.GetMass()) / (o2::constants::physics::LightSpeedCm2NS);
Expand Down Expand Up @@ -5355,13 +5380,13 @@
values[kVertexingLxyErr] = (KFPV.GetCovariance(0) + KFGeoThreeProng.GetCovariance(0)) * dxTriplet2PV * dxTriplet2PV + (KFPV.GetCovariance(2) + KFGeoThreeProng.GetCovariance(2)) * dyTriplet2PV * dyTriplet2PV + 2 * ((KFPV.GetCovariance(1) + KFGeoThreeProng.GetCovariance(1)) * dxTriplet2PV * dyTriplet2PV);
values[kVertexingLzErr] = (KFPV.GetCovariance(5) + KFGeoThreeProng.GetCovariance(5)) * dzTriplet2PV * dzTriplet2PV;
values[kVertexingLxyzErr] = (KFPV.GetCovariance(0) + KFGeoThreeProng.GetCovariance(0)) * dxTriplet2PV * dxTriplet2PV + (KFPV.GetCovariance(2) + KFGeoThreeProng.GetCovariance(2)) * dyTriplet2PV * dyTriplet2PV + (KFPV.GetCovariance(5) + KFGeoThreeProng.GetCovariance(5)) * dzTriplet2PV * dzTriplet2PV + 2 * ((KFPV.GetCovariance(1) + KFGeoThreeProng.GetCovariance(1)) * dxTriplet2PV * dyTriplet2PV + (KFPV.GetCovariance(3) + KFGeoThreeProng.GetCovariance(3)) * dxTriplet2PV * dzTriplet2PV + (KFPV.GetCovariance(4) + KFGeoThreeProng.GetCovariance(4)) * dyTriplet2PV * dzTriplet2PV);
if (fabs(values[kVertexingLxy]) < 1.e-8f)

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values[kVertexingLxy] = 1.e-8f;
values[kVertexingLxyErr] = values[kVertexingLxyErr] < 0. ? 1.e8f : std::sqrt(values[kVertexingLxyErr]) / values[kVertexingLxy];
if (fabs(values[kVertexingLz]) < 1.e-8f)

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values[kVertexingLz] = 1.e-8f;
values[kVertexingLzErr] = values[kVertexingLzErr] < 0. ? 1.e8f : std::sqrt(values[kVertexingLzErr]) / values[kVertexingLz];
if (fabs(values[kVertexingLxyz]) < 1.e-8f)

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values[kVertexingLxyz] = 1.e-8f;
values[kVertexingLxyzErr] = values[kVertexingLxyzErr] < 0. ? 1.e8f : std::sqrt(values[kVertexingLxyzErr]) / values[kVertexingLxyz];

Expand Down Expand Up @@ -5612,7 +5637,7 @@
values[kVertexingLxyErr] = (KFPV.GetCovariance(0) + KFGeoThreeProng.GetCovariance(0)) * dxTriplet3PV * dxTriplet3PV + (KFPV.GetCovariance(2) + KFGeoThreeProng.GetCovariance(2)) * dyTriplet3PV * dyTriplet3PV + 2 * ((KFPV.GetCovariance(1) + KFGeoThreeProng.GetCovariance(1)) * dxTriplet3PV * dyTriplet3PV);
values[kVertexingLzErr] = (KFPV.GetCovariance(5) + KFGeoThreeProng.GetCovariance(5)) * dzTriplet3PV * dzTriplet3PV;
values[kVertexingLxyzErr] = (KFPV.GetCovariance(0) + KFGeoThreeProng.GetCovariance(0)) * dxTriplet3PV * dxTriplet3PV + (KFPV.GetCovariance(2) + KFGeoThreeProng.GetCovariance(2)) * dyTriplet3PV * dyTriplet3PV + (KFPV.GetCovariance(5) + KFGeoThreeProng.GetCovariance(5)) * dzTriplet3PV * dzTriplet3PV + 2 * ((KFPV.GetCovariance(1) + KFGeoThreeProng.GetCovariance(1)) * dxTriplet3PV * dyTriplet3PV + (KFPV.GetCovariance(3) + KFGeoThreeProng.GetCovariance(3)) * dxTriplet3PV * dzTriplet3PV + (KFPV.GetCovariance(4) + KFGeoThreeProng.GetCovariance(4)) * dyTriplet3PV * dzTriplet3PV);
if (fabs(values[kVertexingLxy]) < 1.e-8f)

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[std-prefix] 

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values[kVertexingLxy] = 1.e-8f;
values[kVertexingLxyErr] = values[kVertexingLxyErr] < 0. ? 1.e8f : std::sqrt(values[kVertexingLxyErr]) / values[kVertexingLxy];
if (fabs(values[kVertexingLz]) < 1.e-8f)
Expand Down
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