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[PWGDQ] Add calculation of muon pair production rate asymmetry #8759

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Dec 4, 2024
Merged

[PWGDQ] Add calculation of muon pair production rate asymmetry #8759

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ae21862
Add calculation of muon pair production rate asymmetry
kentokimura-HU Dec 2, 2024
41aae2d
Removed the trailing spaces at the end of the line
kkimura0623 Dec 2, 2024
242f963
Update HistogramsLibrary.cxx
kkimura0623 Dec 2, 2024
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26 changes: 26 additions & 0 deletions PWGDQ/Core/HistogramsLibrary.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -1030,6 +1030,18 @@ void o2::aod::dqhistograms::DefineHistograms(HistogramManager* hm, const char* h
hm->AddHistogram(histClass, "Mass_Pt_cosThetaCS_phiCS", "", 4, varspTCS, binspT, xminpT, xmaxpT, 0, -1, kFALSE);
hm->AddHistogram(histClass, "Mass_y_cosThetaCS_phiCS", "", 4, varsrapCS, binsy, xminy, xmaxy, 0, -1, kFALSE);
}
if (subGroupStr.Contains("dimuon-polarization-vp")) {
int varspTCS[3] = {VarManager::kMass, VarManager::kPt, VarManager::kPhiVP};
int varsrapCS[3] = {VarManager::kMass, VarManager::kRap, VarManager::kPhiVP};
int binspT[3] = {100, 20, 24};
int binsy[3] = {100, 10, 24};
double xminpT[3] = {1., 0., 0.};
double xmaxpT[3] = {5., 20., +3.14};
double xminy[3] = {1., 2.5, 0.};
double xmaxy[3] = {5., 4.0, +3.14};
hm->AddHistogram(histClass, "Mass_Pt_phiVP", "", 3, varspTCS, binspT, xminpT, xmaxpT, 0, -1, kFALSE);
hm->AddHistogram(histClass, "Mass_y_phiVP", "", 3, varsrapCS, binsy, xminy, xmaxy, 0, -1, kFALSE);
}
if (subGroupStr.Contains("dimuon-rap")) {
int vars[4] = {VarManager::kMass, VarManager::kPt, VarManager::kCentFT0C, VarManager::kRap};
int binspT[4] = {150, 200, 10, 6};
Expand Down Expand Up @@ -1065,6 +1077,20 @@ void o2::aod::dqhistograms::DefineHistograms(HistogramManager* hm, const char* h
double xmaxpT[5] = {1.2, 3., 100, 1., 3.14};
hm->AddHistogram(histClass, "Mass_Pt_Cent_cosThetaCS_lowmass", "", 5, varsCSpbpb, binspT, xminpT, xmaxpT, 0, -1, kFALSE);
}
if (subGroupStr.Contains("dimuon-polarization-vp-pbpb")) {
int varsHEpbpb[4] = {VarManager::kMass, VarManager::kPt, VarManager::kCentFT0C, VarManager::kPhiVP};
int binspT[4] = {150, 30, 10, 24};
double xminpT[4] = {2., 0., 0, 0.};
double xmaxpT[4] = {5., 3., 100, 3.14};
hm->AddHistogram(histClass, "Mass_Pt_Cent_phiVP", "", 4, varsHEpbpb, binspT, xminpT, xmaxpT, 0, -1, kFALSE);
}
if (subGroupStr.Contains("dimuon-polarization-lowmass-vp-pbpb")) {
int varsHEpbpb[4] = {VarManager::kMass, VarManager::kPt, VarManager::kCentFT0C, VarManager::kPhiVP};
int binspT[4] = {200, 30, 10, 24};
double xminpT[4] = {0.2, 0., 0, 0.};
double xmaxpT[4] = {1.2, 3., 100, 3.14};
hm->AddHistogram(histClass, "Mass_Pt_Cent_phiVP_lowmass", "", 4, varsHEpbpb, binspT, xminpT, xmaxpT, 0, -1, kFALSE);
}
if (subGroupStr.Contains("dimuon-rap-polarization-he-pbpb")) {
int varsHEpbpb[5] = {VarManager::kMass, VarManager::kPt, VarManager::kCentFT0C, VarManager::kCosThetaHE, VarManager::kRap};
int binspT[5] = {150, 30, 10, 10, 6};
Expand Down
2 changes: 2 additions & 0 deletions PWGDQ/Core/VarManager.cxx
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Expand Up @@ -863,6 +863,8 @@ void VarManager::SetDefaultVarNames()
fgVariableUnits[kCosThetaCS] = "";
fgVariableNames[kPhiCS] = "#varphi_{CS}";
fgVariableUnits[kPhiCS] = "rad.";
fgVariableNames[kPhiVP] = "#varphi_{VP} - #Psi_{2}";
fgVariableUnits[kPhiVP] = "rad.";
fgVariableNames[kDeltaPhiPair2] = "#Delta#phi";
fgVariableUnits[kDeltaPhiPair2] = "rad.";
fgVariableNames[kDeltaEtaPair2] = "#Delta#eta";
Expand Down
11 changes: 11 additions & 0 deletions PWGDQ/Core/VarManager.h
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Expand Up @@ -611,6 +611,7 @@ class VarManager : public TObject
kCosThetaCS,
kPhiHE,
kPhiCS,
kPhiVP,
kDeltaPhiPair2,
kDeltaEtaPair2,
kPsiPair,
Expand Down Expand Up @@ -4335,6 +4336,16 @@ void VarManager::FillPairVn(T1 const& t1, T2 const& t2, float* values)
values[kCORR2REF] = std::isnan(values[kCORR2REF]) || std::isinf(values[kCORR2REF]) ? 0 : values[kCORR2REF];
values[kCORR4REF] = std::isnan(values[kCORR4REF]) || std::isinf(values[kCORR4REF]) ? 0 : values[kCORR4REF];
}

ROOT::Math::PtEtaPhiMVector v1_vp(v1.Pt(), v1.Eta(), v1.Phi() - Psi2B, v1.M());
ROOT::Math::PtEtaPhiMVector v2_vp(v2.Pt(), v2.Eta(), v2.Phi() - Psi2B, v2.M());
ROOT::Math::PtEtaPhiMVector v12_vp = v1_vp + v2_vp;
auto p12_vp = ROOT::Math::XYZVectorF(v12_vp.Px(), v12_vp.Py(), v12_vp.Pz());
auto p12_vp_projXZ = ROOT::Math::XYZVectorF(p12_vp.X(), 0, p12_vp.Z());
auto vDimu = (t1.sign() > 0 ? ROOT::Math::XYZVectorF(v1_vp.Px(), v1_vp.Py(), v1_vp.Pz()).Cross(ROOT::Math::XYZVectorF(v2_vp.Px(), v2_vp.Py(), v2_vp.Pz()))
: ROOT::Math::XYZVectorF(v2_vp.Px(), v2_vp.Py(), v2_vp.Pz()).Cross(ROOT::Math::XYZVectorF(v1_vp.Px(), v1_vp.Py(), v1_vp.Pz())));
auto vRef = p12_vp.Cross(p12_vp_projXZ);
values[kPhiVP] = std::acos(vDimu.Dot(vRef) / (vRef.R() * vDimu.R()));
}

template <typename T>
Expand Down
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