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[PWGCF] FemtoUniverse - Track-Phi - new PID for Phi #17187

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[PWGCF] FemtoUniverse - Track-Phi - new PID for Phi #17187

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89 changes: 61 additions & 28 deletions PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackPhi.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,7 @@
Configurable<float> ConfTrackPtPIDLimit{"ConfTrackPtPIDLimit", 0.5, "Momentum threshold for change of the PID method (from using TPC to TPC and TOF)."};
Configurable<float> ConfTrackPtLow{"ConfTrackPtLow", 0.5, "Lower limit of the hadron pT."};
Configurable<float> ConfTrackPtHigh{"ConfTrackPtHigh", 2.5, "Higher limit of the hadron pT."};
Configurable<bool> ConfTrackUseRun3PIDforKaons{"ConfTrackUseRun3PIDforKaons", true, "Use Run3 PID for kaons from Veronika Barbasova's AN (https://alice-notes.web.cern.ch/node/1758). If this is on the other PID methods are ignored for kaons."};

/// Partitions for the track (particle 1)
Partition<FilteredFemtoFullParticles> partsTrack = (aod::femtouniverseparticle::partType == uint8_t(aod::femtouniverseparticle::ParticleType::kTrack)) &&
Expand Down Expand Up @@ -231,7 +232,7 @@

bool isProtonRejected(float mom, float nsigmaTPCPi, float nsigmaTOFPi, float nsigmaTPCK, float nsigmaTOFK)
{
if (mom < 0.5) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
return true;
}
if (mom > 0.5) {
Expand All @@ -247,42 +248,72 @@
}
}

bool isKaonNSigma(float mom, float nsigmaTPCK, float nsigmaTOFK)
bool isKaonNSigma(float mom, bool hasTOF, float nsigmaTPCK, float nsigmaTOFK)
{
if (mom < 0.3) { // 0.0-0.3
if (std::abs(nsigmaTPCK) < 3.0) {
return true;
} else {
return false;
}
} else if (mom < 0.45) { // 0.30 - 0.45
if (std::abs(nsigmaTPCK) < 2.0) {
return true;
} else {
return false;
if (ConfTrackUseRun3PIDforKaons) {
if (mom < 0.5) {
if (std::abs(nsigmaTPCK) < 3.0) {
return true;
} else {
return false;
}
} else if (mom >= 0.5) {
if (hasTOF) // if TOF is available, use combine nsigma
{
if (std::hypot(nsigmaTOFK, nsigmaTPCK) < 3.0) {
return true;
} else {
return false;
}
} else // if TOF is not available, use TPC nsigma only
{
if (std::abs(nsigmaTPCK) < 3.0) {
return true;
} else {
return false;
}
}
}
} else if (mom < 0.55) { // 0.45-0.55
if (std::abs(nsigmaTPCK) < 1.0) {
return true;
} else {

else {
return false;
}
} else if (mom < 1.5) { // 0.55-1.5 (now we use TPC and TOF)
if ((std::abs(nsigmaTOFK) < 3.0) && (std::abs(nsigmaTPCK) < 3.0)) {
{
} else {
if (mom < 0.3) { // 0.0-0.3
if (std::abs(nsigmaTPCK) < 3.0) {
return true;
} else {
return false;
}
} else if (mom < 0.45) { // 0.30 - 0.45
if (std::abs(nsigmaTPCK) < 2.0) {
return true;
} else {
return false;
}
} else if (mom < 0.55) { // 0.45-0.55
if (std::abs(nsigmaTPCK) < 1.0) {
return true;
} else {
return false;
}
} else if (mom < 1.5) { // 0.55-1.5 (now we use TPC and TOF)
if ((std::abs(nsigmaTOFK) < 3.0) && (std::abs(nsigmaTPCK) < 3.0)) {
{
return true;
}
} else {
return false;
}
} else if (mom > 1.5) { // 1.5 -
if ((std::abs(nsigmaTOFK) < 2.0) && (std::abs(nsigmaTPCK) < 3.0)) {
return true;
} else {
return false;
}
} else {
return false;
}
} else if (mom > 1.5) { // 1.5 -
if ((std::abs(nsigmaTOFK) < 2.0) && (std::abs(nsigmaTPCK) < 3.0)) {
return true;
} else {
return false;
}
} else {
return false;
}
}

Expand Down Expand Up @@ -352,6 +383,8 @@

bool isParticleNSigmaAccepted(float mom, float nsigmaTPCPr, float nsigmaTOFPr, float nsigmaTPCPi, float nsigmaTOFPi, float nsigmaTPCK, float nsigmaTOFK)
{
bool hasTOF = std::isfinite(nsigmaTOFPr) || std::isfinite(nsigmaTOFPi) || std::isfinite(nsigmaTOFK);

switch (ConfTrackPDGCode) {
case 2212: // Proton
case -2212: // anty Proton
Expand All @@ -363,7 +396,7 @@
break;
case 321: // Kaon+
case -321: // Kaon-
return isKaonNSigma(mom, nsigmaTPCK, nsigmaTOFK);
return isKaonNSigma(mom, hasTOF, nsigmaTPCK, nsigmaTOFK);
break;
default:
return false;
Expand Down Expand Up @@ -734,18 +767,18 @@
// charge +
if (pdgParticle->Charge() > 0.0) {
registryMCtruth.fill(HIST("MCtruthAllPositivePt"), part.pt());
if (pdgCode == 2212) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCtruth.fill(HIST("MCtruthPpos"), part.pt(), part.eta());
registryMCtruth.fill(HIST("MCtruthPposPt"), part.pt());
continue;
} else if (pdgCode == 321) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCtruth.fill(HIST("MCtruthKp"), part.pt(), part.eta());
registryMCtruth.fill(HIST("MCtruthKpPt"), part.pt());
continue;
}
}
// charge 0
if (pdgCode == 333) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCtruth.fill(HIST("MCtruthPhi"), part.pt(), part.eta());
registryMCtruth.fill(HIST("MCtruthPhiPt"), part.pt());
effCorrection.fillTruthHist<ParticleNo::ONE, FilteredFDCollisions>(part);
Expand All @@ -756,11 +789,11 @@
if (pdgParticle->Charge() < 0.0) {
registryMCtruth.fill(HIST("MCtruthAllNegativePt"), part.pt());

if (pdgCode == -321) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCtruth.fill(HIST("MCtruthKm"), part.pt(), part.eta());
registryMCtruth.fill(HIST("MCtruthKmPt"), part.pt());
continue;
} else if (pdgCode == -2212) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCtruth.fill(HIST("MCtruthPneg"), part.pt(), part.eta());
registryMCtruth.fill(HIST("MCtruthPnegPt"), part.pt());
continue;
Expand All @@ -783,7 +816,7 @@
float weightTrack = effCorrection.getWeight<FilteredFDCollisions>(ParticleNo::TWO, part);
registryMCpT.fill(HIST("MCReco/C_p_pT"), part.pt(), weightTrack);
}
if ((mcpart.pdgMCTruth() == 333) && (part.partType() == aod::femtouniverseparticle::ParticleType::kPhi) && (part.pt() > ConfPhiPtLow) && (part.pt() < ConfPhiPtHigh)) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCpT.fill(HIST("MCReco/NC_phi_pT"), part.pt());
float weightPhi = effCorrection.getWeight<FilteredFDCollisions>(ParticleNo::ONE, part);
registryMCpT.fill(HIST("MCReco/C_phi_pT"), part.pt(), weightPhi);
Expand All @@ -791,19 +824,19 @@

if (isParticleNSigmaAccepted(part.p(), trackCuts.getNsigmaTPC(part, o2::track::PID::Proton), trackCuts.getNsigmaTOF(part, o2::track::PID::Proton), trackCuts.getNsigmaTPC(part, o2::track::PID::Pion), trackCuts.getNsigmaTOF(part, o2::track::PID::Pion), trackCuts.getNsigmaTPC(part, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(part, o2::track::PID::Kaon)))
hTrackDCA.fillQA<true, true>(part);
if ((part.partType() == aod::femtouniverseparticle::ParticleType::kPhi) && (mcpart.pdgMCTruth() == 333) && (mcpart.partOriginMCTruth() == aod::femtouniverse_mc_particle::ParticleOriginMCTruth::kPrimary)) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCreco.fill(HIST("MCrecoPhi"), mcpart.pt(), mcpart.eta()); // phi
registryMCreco.fill(HIST("MCrecoPhiPt"), mcpart.pt());
} else if (part.partType() == aod::femtouniverseparticle::ParticleType::kTrack) {
if (part.sign() > 0) {
registryMCreco.fill(HIST("MCrecoAllPositivePt"), mcpart.pt());
if (mcpart.pdgMCTruth() == 2212 && isParticleNSigmaAccepted(part.p(), trackCuts.getNsigmaTPC(part, o2::track::PID::Proton), trackCuts.getNsigmaTOF(part, o2::track::PID::Proton), trackCuts.getNsigmaTPC(part, o2::track::PID::Pion), trackCuts.getNsigmaTOF(part, o2::track::PID::Pion), trackCuts.getNsigmaTPC(part, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(part, o2::track::PID::Kaon))) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCreco.fill(HIST("MCrecoPpos"), mcpart.pt(), mcpart.eta());
registryMCreco.fill(HIST("MCrecoPposPt"), mcpart.pt());
}
} else if (part.sign() < 0) {
registryMCreco.fill(HIST("MCrecoAllNegativePt"), mcpart.pt());
if (mcpart.pdgMCTruth() == -2212 && isParticleNSigmaAccepted(part.p(), trackCuts.getNsigmaTPC(part, o2::track::PID::Proton), trackCuts.getNsigmaTOF(part, o2::track::PID::Proton), trackCuts.getNsigmaTPC(part, o2::track::PID::Pion), trackCuts.getNsigmaTOF(part, o2::track::PID::Pion), trackCuts.getNsigmaTPC(part, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(part, o2::track::PID::Kaon))) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registryMCreco.fill(HIST("MCrecoPneg"), mcpart.pt(), mcpart.eta());
registryMCreco.fill(HIST("MCrecoPnegPt"), mcpart.pt());
}
Expand Down
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