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PWGLF: Fix a bug of TPC nclusters cut and change the order of cuts on tracks for analysis of hypertriton 3body decay #8180

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Oct 28, 2024
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PWGLF: Fix a bug of TPC nclusters cut and change the order of cuts on tracks for analysis of hypertriton 3body decay #8180

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2 changes: 1 addition & 1 deletion PWGLF/TableProducer/Nuspex/decay3bodybuilder.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -523,7 +523,7 @@ struct decay3bodyBuilder {
auto t1 = vtx3body.template track1_as<TTrackClass>();
auto t2 = vtx3body.template track2_as<TTrackClass>();

if (t0.tpcNClsFound() < mintpcNCls && t1.tpcNClsFound() < mintpcNCls && t2.tpcNClsFound() < mintpcNCls) {
if (t0.tpcNClsFound() < mintpcNCls || t1.tpcNClsFound() < mintpcNCls || t2.tpcNClsFound() < mintpcNCls) {
continue;
}
registry.fill(HIST("hVtx3BodyCounter"), kVtxTPCNcls);
Expand Down
20 changes: 12 additions & 8 deletions PWGLF/TableProducer/Nuspex/threebodyRecoTask.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -150,9 +150,9 @@ struct threebodyRecoTask {
kCandRapidity,
kCandct,
kCandDcaDau,
kCandTOFPID,
kCandTPCPID,
kCandTPCNcls,
kCandTPCPID,
kCandTOFPID,
kCandDauPt,
kCandDcaToPV,
kCandInvMass,
Expand Down Expand Up @@ -281,40 +281,44 @@ struct threebodyRecoTask {
return;
}
FillCandCounter(kCandCosPA, isTrueCand);

if (std::abs(trackProton.eta()) > etacut || std::abs(trackPion.eta()) > etacut || std::abs(trackDeuteron.eta()) > etacut) {
return;
}
FillCandCounter(kCandDauEta, isTrueCand);

if (std::abs(candData.yHypertriton()) > rapiditycut) {
return;
}
FillCandCounter(kCandRapidity, isTrueCand);

double ct = candData.distovertotmom(dCollision.posX(), dCollision.posY(), dCollision.posZ()) * o2::constants::physics::MassHyperTriton;
if (ct > lifetimecut) {
return;
}
FillCandCounter(kCandct, isTrueCand);

if (candData.dcaVtxdaughters() > dcavtxdau) {
return;
}
FillCandCounter(kCandDcaDau, isTrueCand);

registry.fill(HIST("hDeuteronTOFVsPBeforeTOFCut"), trackDeuteron.sign() * trackDeuteron.p(), candData.tofNSigmaBachDe());
if ((candData.tofNSigmaBachDe() < TofPidNsigmaMin || candData.tofNSigmaBachDe() > TofPidNsigmaMax) && trackDeuteron.p() > minDeuteronPUseTOF) {
if (trackProton.tpcNClsFound() < mintpcNClsproton || trackPion.tpcNClsFound() < mintpcNClspion || trackDeuteron.tpcNClsFound() < mintpcNClsdeuteron) {
return;
}
FillCandCounter(kCandTOFPID, isTrueCand);
registry.fill(HIST("hDeuteronTOFVsPAtferTOFCut"), trackDeuteron.sign() * trackDeuteron.p(), candData.tofNSigmaBachDe());
FillCandCounter(kCandTPCNcls, isTrueCand);

if (std::abs(trackProton.tpcNSigmaPr()) > TpcPidNsigmaCut || std::abs(trackPion.tpcNSigmaPi()) > TpcPidNsigmaCut || std::abs(trackDeuteron.tpcNSigmaDe()) > TpcPidNsigmaCut) {
return;
}
FillCandCounter(kCandTPCPID, isTrueCand);

if (trackProton.tpcNClsFound() < mintpcNClsproton || trackPion.tpcNClsFound() < mintpcNClspion || trackDeuteron.tpcNClsFound() < mintpcNClsdeuteron) {
registry.fill(HIST("hDeuteronTOFVsPBeforeTOFCut"), trackDeuteron.sign() * trackDeuteron.p(), candData.tofNSigmaBachDe());
if ((candData.tofNSigmaBachDe() < TofPidNsigmaMin || candData.tofNSigmaBachDe() > TofPidNsigmaMax) && trackDeuteron.p() > minDeuteronPUseTOF) {
return;
}
FillCandCounter(kCandTPCNcls, isTrueCand);
FillCandCounter(kCandTOFPID, isTrueCand);
registry.fill(HIST("hDeuteronTOFVsPAtferTOFCut"), trackDeuteron.sign() * trackDeuteron.p(), candData.tofNSigmaBachDe());

if (trackProton.pt() < minProtonPt || trackProton.pt() > maxProtonPt || trackPion.pt() < minPionPt || trackPion.pt() > maxPionPt || trackDeuteron.pt() < minDeuteronPt || trackDeuteron.pt() > maxDeuteronPt) {
return;
Expand Down
32 changes: 18 additions & 14 deletions PWGLF/Tasks/Nuspex/hypertriton3bodyanalysis.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -236,9 +236,9 @@ struct hypertriton3bodyAnalysis {
kCandRapidity,
kCandct,
kCandDcaDau,
kCandTOFPID,
kCandTPCPID,
kCandTPCNcls,
kCandTPCPID,
kCandTOFPID,
kCandDauPt,
kCandDcaToPV,
kCandInvMass,
Expand Down Expand Up @@ -329,24 +329,38 @@ struct hypertriton3bodyAnalysis {
return;
}
FillCandCounter(kCandCosPA, isTrueCand);
if (TMath::Abs(trackProton.eta()) > etacut || TMath::Abs(trackPion.eta()) > etacut || TMath::Abs(trackDeuteron.eta()) > etacut) {

if (std::abs(trackProton.eta()) > etacut || std::abs(trackPion.eta()) > etacut || std::abs(trackDeuteron.eta()) > etacut) {
return;
}
FillCandCounter(kCandDauEta, isTrueCand);
if (TMath::Abs(candData.yHypertriton()) > rapiditycut) {

if (std::abs(candData.yHypertriton()) > rapiditycut) {
return;
}
FillCandCounter(kCandRapidity, isTrueCand);

double ct = candData.distovertotmom(dCollision.posX(), dCollision.posY(), dCollision.posZ()) * o2::constants::physics::MassHyperTriton;
if (ct > lifetimecut) {
return;
}
FillCandCounter(kCandct, isTrueCand);

if (candData.dcaVtxdaughters() > dcavtxdau) {
return;
}
FillCandCounter(kCandDcaDau, isTrueCand);

if (trackProton.tpcNClsFound() < mintpcNClsproton || trackPion.tpcNClsFound() < mintpcNClspion || trackDeuteron.tpcNClsFound() < mintpcNClsdeuteron) {
return;
}
FillCandCounter(kCandTPCNcls, isTrueCand);

if (TMath::Abs(trackProton.tpcNSigmaPr()) > TpcPidNsigmaCut || TMath::Abs(trackPion.tpcNSigmaPi()) > TpcPidNsigmaCut || TMath::Abs(trackDeuteron.tpcNSigmaDe()) > TpcPidNsigmaCut) {
return;
}
FillCandCounter(kCandTPCPID, isTrueCand);

// registry.fill(HIST("hDeuteronDefaultTOFVsPBeforeTOFCut"), trackDeuteron.sign() * trackDeuteron.p(), trackDeuteron.tofNSigmaDe());
registry.fill(HIST("hDeuteronTOFVsPBeforeTOFCut"), trackDeuteron.sign() * trackDeuteron.p(), candData.tofNSigmaBachDe());
if (isTrueCand) {
Expand All @@ -364,16 +378,6 @@ struct hypertriton3bodyAnalysis {
registry.fill(HIST("hDeuteronTOFVsPAfterTOFCutSig"), trackDeuteron.sign() * trackDeuteron.p(), candData.tofNSigmaBachDe());
}

if (TMath::Abs(trackProton.tpcNSigmaPr()) > TpcPidNsigmaCut || TMath::Abs(trackPion.tpcNSigmaPi()) > TpcPidNsigmaCut || TMath::Abs(trackDeuteron.tpcNSigmaDe()) > TpcPidNsigmaCut) {
return;
}
FillCandCounter(kCandTPCPID, isTrueCand);

if (trackProton.tpcNClsFound() < mintpcNClsproton || trackPion.tpcNClsFound() < mintpcNClspion || trackDeuteron.tpcNClsFound() < mintpcNClsdeuteron) {
return;
}
FillCandCounter(kCandTPCNcls, isTrueCand);

if (trackProton.pt() < minProtonPt || trackProton.pt() > maxProtonPt || trackPion.pt() < minPionPt || trackPion.pt() > maxPionPt || trackDeuteron.pt() < minDeuteronPt || trackDeuteron.pt() > maxDeuteronPt) {
return;
}
Expand Down
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