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[PWGDQ] Add a ppbar pair type in tableReaderwithAssoc #17241

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5 changes: 5 additions & 0 deletions PWGDQ/Core/CutsLibrary.cxx
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Expand Up @@ -5988,7 +5988,7 @@
if (icase == 0) {
cut->AddCut(VarManager::kTPCnSigmaEl, -4., 4., false, VarManager::kPin, 0.0, 1e+10, false);
cut->AddCut(VarManager::kTPCnSigmaPi, -99., 2.5, true, VarManager::kPin, 0.0, 1e+10, false);
} else if (icase == 1 || icase == 2) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
cut->AddCut(VarManager::kTPCnSigmaEl_Corr, -4., 4., false, VarManager::kPin, 0.0, 1e+10, false);
cut->AddCut(VarManager::kTPCnSigmaPi_Corr, -99., 2.5, true, VarManager::kPin, 0.0, 1e+10, false);
}
Expand Down Expand Up @@ -7173,6 +7173,11 @@
return cut;
}

if (nameStr == "pairIsPr") {
cut->AddCut(VarManager::kIsPrPair, 0.5, 1.5);
return cut;
}

// -------------------------------------------------------------------------------------------------
//
// Below are a list of single electron single muon and pair selection in order or optimize the trigger
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6 changes: 6 additions & 0 deletions PWGDQ/Core/HistogramsLibrary.cxx
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Expand Up @@ -744,22 +744,22 @@
if (subGroupStr.Contains("tpcpid_fine")) {
// fine binning for pIN: steps in 10 MeV/c from 0 to 1 GeV/c and 100 MeV/c up to 10 GeV/c
std::array<double, 281> pIN_bins{};
for (int i = 0; i <= 200; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
pIN_bins[i] = 0.01 * i;
}
for (int i = 1; i <= 80; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
pIN_bins[200 + i] = 2. + 0.1 * i;
}
int nbins_pIN = static_cast<int>(pIN_bins.size()) - 1;

std::array<double, 201> TPCdEdx_bins{};
for (int i = 0; i <= 200; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
TPCdEdx_bins[i] = i;
}
int nbins_TPCdEdx = static_cast<int>(TPCdEdx_bins.size()) - 1;

std::array<double, 101> nSigma_bins{};
for (int i = 0; i <= 100; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
nSigma_bins[i] = -5. + 0.1 * i;
}
int nbins_nSigma = static_cast<int>(nSigma_bins.size()) - 1;
Expand Down Expand Up @@ -882,22 +882,22 @@
if (subGroupStr.Contains("tofpid_fine")) {
// fine binning for pIN: steps in 10 MeV/c from 0 to 1 GeV/c and 100 MeV/c up to 10 GeV/c
std::array<double, 281> pIN_bins{};
for (int i = 0; i <= 200; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
pIN_bins[i] = 0.01 * i;
}
for (int i = 1; i <= 80; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
pIN_bins[200 + i] = 2. + 0.1 * i;
}
int nbins_pIN = static_cast<int>(pIN_bins.size()) - 1;

std::array<double, 241> TOFbeta_bins{};
for (int i = 0; i <= 240; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
TOFbeta_bins[i] = 0.005 * i;
}
int nbins_TOFbeta = static_cast<int>(TOFbeta_bins.size()) - 1;

std::array<double, 101> nSigma_bins{};
for (int i = 0; i <= 100; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
nSigma_bins[i] = -5. + 0.1 * i;
}
int nbins_nSigma = static_cast<int>(nSigma_bins.size()) - 1;
Expand All @@ -919,7 +919,7 @@
const int kNvarsPID = 3;
const int kNbins_pIN = 169;
std::array<double, kNbins_pIN + 1> pIN_bins{};
for (int i = 0; i <= 140; i++) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
pIN_bins[i] = 0.01 * i + 0.1;
}
for (int i = 1; i <= 15; i++) {
Expand Down Expand Up @@ -1584,6 +1584,12 @@
hm->AddHistogram(histClass, "Mass_cos2DeltaPhi", "cos 2(#varphi-#Psi_{2}^{A}) vs m", true, 125, 0.0, 5.0, VarManager::kMass, 100, -1.0, 1.0, VarManager::kCos2DeltaPhi);
hm->AddHistogram(histClass, "Mass_cos3DeltaPhi", "cos 3(#varphi-#Psi_{3}^{A}) vs m", true, 125, 0.0, 5.0, VarManager::kMass, 100, -1.0, 1.0, VarManager::kCos3DeltaPhi);
}

if (subGroupStr.Contains("prpairpid")) {
hm->AddHistogram(histClass, "nSigmaPr1_nSigmaPr2", "", false, 100, -8.0, 8.0, VarManager::kTPCorTOFnSigmaPr1, 100, -8.0, 8.0, VarManager::kTPCorTOFnSigmaPr2);
hm->AddHistogram(histClass, "t1Pt", "", false, 2000, 0.0, 20.0, VarManager::kPt1);
hm->AddHistogram(histClass, "t2Pt", "", false, 2000, 0.0, 20.0, VarManager::kPt2);
}
} else if (subGroupStr.Contains("dimuon")) {
hm->AddHistogram(histClass, "Mass_Pt", "", false, 750, 0.0, 15.0, VarManager::kMass, 120, 0.0, 30.0, VarManager::kPt);
hm->AddHistogram(histClass, "Mass_Rapidity", "", false, 750, 0.0, 15.0, VarManager::kMass, 150, 2.5, 4.0, VarManager::kRap);
Expand Down
3 changes: 3 additions & 0 deletions PWGDQ/Core/VarManager.cxx
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Expand Up @@ -2237,6 +2237,8 @@ void VarManager::SetDefaultVarNames()
fgVarNamesMap["kDCAz2"] = kDCAz2;
fgVarNamesMap["kITSclusterMap2"] = kITSclusterMap2;
fgVarNamesMap["kTPCnSigmaEl2"] = kTPCnSigmaEl2;
fgVarNamesMap["kTPCorTOFnSigmaPr1"] = kTPCorTOFnSigmaPr1;
fgVarNamesMap["kTPCorTOFnSigmaPr2"] = kTPCorTOFnSigmaPr2;
fgVarNamesMap["kPin"] = kPin;
fgVarNamesMap["kSignedPin"] = kSignedPin;
fgVarNamesMap["kTOFExpMom"] = kTOFExpMom;
Expand Down Expand Up @@ -2315,6 +2317,7 @@ void VarManager::SetDefaultVarNames()
fgVarNamesMap["kIsLegFromOmega"] = kIsLegFromOmega;
fgVarNamesMap["kIsProtonFromLambdaAndAntiLambda"] = kIsProtonFromLambdaAndAntiLambda;
fgVarNamesMap["kIsDalitzLeg"] = kIsDalitzLeg;
fgVarNamesMap["kIsPrPair"] = kIsPrPair;
fgVarNamesMap["kBarrelNAssocsInBunch"] = kBarrelNAssocsInBunch;
fgVarNamesMap["kBarrelNAssocsOutOfBunch"] = kBarrelNAssocsOutOfBunch;
fgVarNamesMap["kNBarrelTrackVariables"] = kNBarrelTrackVariables;
Expand Down
39 changes: 39 additions & 0 deletions PWGDQ/Core/VarManager.h
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Expand Up @@ -158,6 +158,7 @@ class VarManager : public TObject
kDecayToEE = 0, // e.g. J/psi -> e+ e-
kDecayToMuMu, // e.g. J/psi -> mu+ mu-
kDecayToPiPi,
kDecayToPrPr,
kElectronMuon, // e.g. Electron - muon correlations
kBcToThreeMuons, // e.g. Bc -> mu+ mu- mu+
kBtoJpsiEEK, // e.g. B+ -> e+ e- K+
Expand Down Expand Up @@ -986,6 +987,9 @@ class VarManager : public TObject
kPairEfficiency,
kPairWeight,
kNPairVariables,
kTPCorTOFnSigmaPr1,
kTPCorTOFnSigmaPr2,
kIsPrPair,

// Candidate-track correlation variables
kPairMass,
Expand Down Expand Up @@ -3686,6 +3690,11 @@ void VarManager::FillPair(T1 const& t1, T2 const& t2, float* values)
values[kTPCnSigmaKa_leg1] = t1.tpcNSigmaKa();
}

if constexpr (pairType == kDecayToPrPr) {
m1 = o2::constants::physics::MassProton;
m2 = o2::constants::physics::MassProtonBar;
}

if constexpr (pairType == kElectronMuon) {
m2 = o2::constants::physics::MassMuon;
}
Expand Down Expand Up @@ -3744,6 +3753,36 @@ void VarManager::FillPair(T1 const& t1, T2 const& t2, float* values)
}
}

if constexpr (pairType == kDecayToPrPr && (fillMap & ReducedTrackBarrelPID) > 0 && (fillMap & ReducedTrackBarrel) > 0) {

if (t1.hasTOF()) {
values[kTPCorTOFnSigmaPr1] = t1.tofNSigmaPr();
} else if (t1.hasTPC()) {
values[kTPCorTOFnSigmaPr1] = t1.tpcNSigmaPr();
} else {
values[kTPCorTOFnSigmaPr1] = -999.f;
}

if (t2.hasTOF()) {
values[kTPCorTOFnSigmaPr2] = t2.tofNSigmaPr();
} else if (t2.hasTPC()) {
values[kTPCorTOFnSigmaPr2] = t2.tpcNSigmaPr();
} else {
values[kTPCorTOFnSigmaPr2] = -999.f;
}

bool tof1 = t1.hasTOF(), tpc1 = t1.hasTPC();
bool tof2 = t2.hasTOF(), tpc2 = t2.hasTPC();
bool hasTOForgood = (tof1 && tpc2) || (tpc1 && tof2) || (tof1 && tof2);
if (hasTOForgood) {
float nsigma1 = values[kTPCorTOFnSigmaPr1];
float nsigma2 = values[kTPCorTOFnSigmaPr2];
values[kIsPrPair] = (std::abs(nsigma1) < 4.f && std::abs(nsigma2) < 4.f && std::pow(nsigma1, 2.0) + std::pow(nsigma2, 2.0) < 16.f) ? 1 : 0;
} else {
values[kIsPrPair] = 0;
}
}

// polarization parameters
bool useHE = fgUsedVars[kCosThetaHE] || fgUsedVars[kPhiHE]; // helicity frame
bool useCS = fgUsedVars[kCosThetaCS] || fgUsedVars[kPhiCS]; // Collins-Soper frame
Expand Down
8 changes: 8 additions & 0 deletions PWGDQ/Tasks/tableReader_withAssoc.cxx
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Expand Up @@ -3814,6 +3814,13 @@ struct AnalysisAsymmetricPairing {
runAsymmetricPairing<true, VarManager::kDecayToKPi, gkEventFillMapWithCovZdcFitMultExtra, gkTrackFillMapWithCov>(events, trackAssocsPerCollision, barrelAssocs, barrelTracks);
}

void processProtonPairSkimmed(MyEventsVtxCovZdcFitSelected const& events,
soa::Join<aod::ReducedTracksAssoc, aod::BarrelTrackCuts> const& barrelAssocs,
MyBarrelTracksWithCovWithAmbiguities const& barrelTracks)
{
runAsymmetricPairing<false, VarManager::kDecayToPrPr, gkEventFillMapWithCovZdcFit, gkTrackFillMapWithCov>(events, trackAssocsPerCollision, barrelAssocs, barrelTracks);
}

void processKaonPionPionSkimmed(MyEventsVtxCovZdcFitSelected const& events,
soa::Join<aod::ReducedTracksAssoc, aod::BarrelTrackCuts> const& barrelAssocs,
MyBarrelTracksWithCovWithAmbiguities const& barrelTracks)
Expand Down Expand Up @@ -3841,6 +3848,7 @@ struct AnalysisAsymmetricPairing {
}

PROCESS_SWITCH(AnalysisAsymmetricPairing, processKaonPionSkimmed, "Run kaon pion pairing, with skimmed tracks", false);
PROCESS_SWITCH(AnalysisAsymmetricPairing, processProtonPairSkimmed, "Run proton anti-proton pairing, with skimmed tracks", false);
PROCESS_SWITCH(AnalysisAsymmetricPairing, processKaonPionPionSkimmed, "Run kaon pion pion triplets, with skimmed tracks", false);
PROCESS_SWITCH(AnalysisAsymmetricPairing, processKaonPionSkimmedMultExtra, "Run kaon pion pairing, with skimmed tracks", false);
PROCESS_SWITCH(AnalysisAsymmetricPairing, processKaonPionPionSkimmedMultExtra, "Run kaon pion pion triplets, with skimmed tracks", false);
Expand Down
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