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[PWGLF] Require TOF on at least one of the decay daughters #15128

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[PWGLF] Require TOF on at least one of the decay daughters #15128

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bd9d89f
Require TOF on at least one of the decay daughters
romainschotter Feb 23, 2026
82f0069
Switch from primary hasTOF() to strangeness hasTOF()
romainschotter Feb 23, 2026
727a2e9
Please consider the following formatting changes to #15128 (#15129)
alibuild Feb 23, 2026
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98 changes: 68 additions & 30 deletions PWGLF/Tasks/Strangeness/derivedlambdakzeroanalysis.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -215,6 +215,8 @@ struct derivedlambdakzeroanalysis {
Configurable<bool> rejectNegITSafterburner{"rejectNegITSafterburner", false, "reject negative track formed out of afterburner ITS tracks"};
Configurable<bool> requirePosITSafterburnerOnly{"requirePosITSafterburnerOnly", false, "require positive track formed out of afterburner ITS tracks"};
Configurable<bool> requireNegITSafterburnerOnly{"requireNegITSafterburnerOnly", false, "require negative track formed out of afterburner ITS tracks"};
Configurable<bool> requirePosHasTOF{"requirePosHasTOF", false, "require that positive track has an associated TOF signal. On false, TOF requirement (if any) is only applied IF the track has an associated TOF signal."};
Configurable<bool> requireNegHasTOF{"requireNegHasTOF", false, "require that negative track has an associated TOF signal. On false, TOF requirement (if any) is only applied IF the track has an associated TOF signal."};
Configurable<bool> rejectTPCsectorBoundary{"rejectTPCsectorBoundary", false, "reject tracks close to the TPC sector boundaries"};
Configurable<std::string> phiLowCut{"phiLowCut", "0.06/x+pi/18.0-0.06", "Low azimuth cut parametrisation"};
Configurable<std::string> phiHighCut{"phiHighCut", "0.1/x+pi/18.0+0.06", "High azimuth cut parametrisation"};
Expand Down Expand Up @@ -527,15 +529,15 @@ struct derivedlambdakzeroanalysis {
BITSET(maskAntiLambdaSpecific, selTPCPIDPositivePion);
}
// TOF PID
if (v0Selections.tofPidNsigmaCutK0Pi < 1e+5) { // safeguard for no cut
if (v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutK0Pi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut
BITSET(maskK0ShortSpecific, selTOFNSigmaPositivePionK0Short);
BITSET(maskK0ShortSpecific, selTOFDeltaTPositivePionK0Short);
}
if (v0Selections.tofPidNsigmaCutLaPr < 1e+5) { // safeguard for no cut
if (v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutLaPr < 1e+5 || v0Selections.maxDeltaTimeProton < 1e+6) { // safeguard for no cut
BITSET(maskLambdaSpecific, selTOFNSigmaPositiveProtonLambda);
BITSET(maskLambdaSpecific, selTOFDeltaTPositiveProtonLambda);
}
if (v0Selections.tofPidNsigmaCutLaPi < 1e+5) { // safeguard for no cut
if (v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutLaPi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut
BITSET(maskAntiLambdaSpecific, selTOFNSigmaPositivePionLambda);
BITSET(maskAntiLambdaSpecific, selTOFDeltaTPositivePionLambda);
}
Expand All @@ -553,15 +555,15 @@ struct derivedlambdakzeroanalysis {
BITSET(maskAntiLambdaSpecific, selTPCPIDNegativeProton);
}
// TOF PID
if (v0Selections.tofPidNsigmaCutK0Pi < 1e+5) { // safeguard for no cut
if (v0Selections.requireNegHasTOF || v0Selections.tofPidNsigmaCutK0Pi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut
BITSET(maskK0ShortSpecific, selTOFNSigmaNegativePionK0Short);
BITSET(maskK0ShortSpecific, selTOFDeltaTNegativePionK0Short);
}
if (v0Selections.tofPidNsigmaCutLaPi < 1e+5) { // safeguard for no cut
if (v0Selections.requireNegHasTOF || v0Selections.tofPidNsigmaCutLaPi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut
BITSET(maskLambdaSpecific, selTOFNSigmaNegativePionLambda);
BITSET(maskLambdaSpecific, selTOFDeltaTNegativePionLambda);
}
if (v0Selections.tofPidNsigmaCutLaPr < 1e+5) { // safeguard for no cut
if (v0Selections.requireNegHasTOF || v0Selections.tofPidNsigmaCutLaPr < 1e+5 || v0Selections.maxDeltaTimeProton < 1e+6) { // safeguard for no cut
BITSET(maskAntiLambdaSpecific, selTOFNSigmaNegativeProtonLambda);
BITSET(maskAntiLambdaSpecific, selTOFDeltaTNegativeProtonLambda);
}
Expand Down Expand Up @@ -1312,35 +1314,71 @@ struct derivedlambdakzeroanalysis {

// TOF PID in DeltaT
// Positive track
if (!posTrackExtra.hasTOF() || std::fabs(v0.posTOFDeltaTLaPr()) < v0Selections.maxDeltaTimeProton)
BITSET(bitMap, selTOFDeltaTPositiveProtonLambda);
if (!posTrackExtra.hasTOF() || std::fabs(v0.posTOFDeltaTLaPi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTPositivePionLambda);
if (!posTrackExtra.hasTOF() || std::fabs(v0.posTOFDeltaTK0Pi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTPositivePionK0Short);
if (v0Selections.requirePosHasTOF) {
if (v0.positiveHasTOF() && std::fabs(v0.posTOFDeltaTLaPr()) < v0Selections.maxDeltaTimeProton)
BITSET(bitMap, selTOFDeltaTPositiveProtonLambda);
if (v0.positiveHasTOF() && std::fabs(v0.posTOFDeltaTLaPi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTPositivePionLambda);
if (v0.positiveHasTOF() && std::fabs(v0.posTOFDeltaTK0Pi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTPositivePionK0Short);
} else { // only apply TOF requirement if available
if (!v0.positiveHasTOF() || std::fabs(v0.posTOFDeltaTLaPr()) < v0Selections.maxDeltaTimeProton)
BITSET(bitMap, selTOFDeltaTPositiveProtonLambda);
if (!v0.positiveHasTOF() || std::fabs(v0.posTOFDeltaTLaPi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTPositivePionLambda);
if (!v0.positiveHasTOF() || std::fabs(v0.posTOFDeltaTK0Pi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTPositivePionK0Short);
}
// Negative track
if (!negTrackExtra.hasTOF() || std::fabs(v0.negTOFDeltaTLaPr()) < v0Selections.maxDeltaTimeProton)
BITSET(bitMap, selTOFDeltaTNegativeProtonLambda);
if (!negTrackExtra.hasTOF() || std::fabs(v0.negTOFDeltaTLaPi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTNegativePionLambda);
if (!negTrackExtra.hasTOF() || std::fabs(v0.negTOFDeltaTK0Pi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTNegativePionK0Short);
if (v0Selections.requireNegHasTOF) {
if (v0.negativeHasTOF() && std::fabs(v0.negTOFDeltaTLaPr()) < v0Selections.maxDeltaTimeProton)
BITSET(bitMap, selTOFDeltaTNegativeProtonLambda);
if (v0.negativeHasTOF() && std::fabs(v0.negTOFDeltaTLaPi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTNegativePionLambda);
if (v0.negativeHasTOF() && std::fabs(v0.negTOFDeltaTK0Pi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTNegativePionK0Short);
} else { // only apply TOF requirement if available
if (!v0.negativeHasTOF() || std::fabs(v0.negTOFDeltaTLaPr()) < v0Selections.maxDeltaTimeProton)
BITSET(bitMap, selTOFDeltaTNegativeProtonLambda);
if (!v0.negativeHasTOF() || std::fabs(v0.negTOFDeltaTLaPi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTNegativePionLambda);
if (!v0.negativeHasTOF() || std::fabs(v0.negTOFDeltaTK0Pi()) < v0Selections.maxDeltaTimePion)
BITSET(bitMap, selTOFDeltaTNegativePionK0Short);
}

// TOF PID in NSigma
// Positive track
if (!posTrackExtra.hasTOF() || std::fabs(v0.tofNSigmaLaPr()) < v0Selections.tofPidNsigmaCutLaPr)
BITSET(bitMap, selTOFNSigmaPositiveProtonLambda);
if (!posTrackExtra.hasTOF() || std::fabs(v0.tofNSigmaALaPi()) < v0Selections.tofPidNsigmaCutLaPi)
BITSET(bitMap, selTOFNSigmaPositivePionLambda);
if (!posTrackExtra.hasTOF() || std::fabs(v0.tofNSigmaK0PiPlus()) < v0Selections.tofPidNsigmaCutK0Pi)
BITSET(bitMap, selTOFNSigmaPositivePionK0Short);
if (v0Selections.requirePosHasTOF) {
if (v0.positiveHasTOF() && std::fabs(v0.tofNSigmaLaPr()) < v0Selections.tofPidNsigmaCutLaPr)
BITSET(bitMap, selTOFNSigmaPositiveProtonLambda);
if (v0.positiveHasTOF() && std::fabs(v0.tofNSigmaALaPi()) < v0Selections.tofPidNsigmaCutLaPi)
BITSET(bitMap, selTOFNSigmaPositivePionLambda);
if (v0.positiveHasTOF() && std::fabs(v0.tofNSigmaK0PiPlus()) < v0Selections.tofPidNsigmaCutK0Pi)
BITSET(bitMap, selTOFNSigmaPositivePionK0Short);
} else { // only apply TOF requirement if available
if (!v0.positiveHasTOF() || std::fabs(v0.tofNSigmaLaPr()) < v0Selections.tofPidNsigmaCutLaPr)
BITSET(bitMap, selTOFNSigmaPositiveProtonLambda);
if (!v0.positiveHasTOF() || std::fabs(v0.tofNSigmaALaPi()) < v0Selections.tofPidNsigmaCutLaPi)
BITSET(bitMap, selTOFNSigmaPositivePionLambda);
if (!v0.positiveHasTOF() || std::fabs(v0.tofNSigmaK0PiPlus()) < v0Selections.tofPidNsigmaCutK0Pi)
BITSET(bitMap, selTOFNSigmaPositivePionK0Short);
}
// Negative track
if (!negTrackExtra.hasTOF() || std::fabs(v0.tofNSigmaALaPr()) < v0Selections.tofPidNsigmaCutLaPr)
BITSET(bitMap, selTOFNSigmaNegativeProtonLambda);
if (!negTrackExtra.hasTOF() || std::fabs(v0.tofNSigmaLaPi()) < v0Selections.tofPidNsigmaCutLaPi)
BITSET(bitMap, selTOFNSigmaNegativePionLambda);
if (!negTrackExtra.hasTOF() || std::fabs(v0.tofNSigmaK0PiMinus()) < v0Selections.tofPidNsigmaCutK0Pi)
BITSET(bitMap, selTOFNSigmaNegativePionK0Short);
if (v0Selections.requireNegHasTOF) {
if (v0.negativeHasTOF() && std::fabs(v0.tofNSigmaALaPr()) < v0Selections.tofPidNsigmaCutLaPr)
BITSET(bitMap, selTOFNSigmaNegativeProtonLambda);
if (v0.negativeHasTOF() && std::fabs(v0.tofNSigmaLaPi()) < v0Selections.tofPidNsigmaCutLaPi)
BITSET(bitMap, selTOFNSigmaNegativePionLambda);
if (v0.negativeHasTOF() && std::fabs(v0.tofNSigmaK0PiMinus()) < v0Selections.tofPidNsigmaCutK0Pi)
BITSET(bitMap, selTOFNSigmaNegativePionK0Short);
} else { // only apply TOF requirement if available
if (!v0.negativeHasTOF() || std::fabs(v0.tofNSigmaALaPr()) < v0Selections.tofPidNsigmaCutLaPr)
BITSET(bitMap, selTOFNSigmaNegativeProtonLambda);
if (!v0.negativeHasTOF() || std::fabs(v0.tofNSigmaLaPi()) < v0Selections.tofPidNsigmaCutLaPi)
BITSET(bitMap, selTOFNSigmaNegativePionLambda);
if (!v0.negativeHasTOF() || std::fabs(v0.tofNSigmaK0PiMinus()) < v0Selections.tofPidNsigmaCutK0Pi)
BITSET(bitMap, selTOFNSigmaNegativePionK0Short);
}

// ITS only tag
if (posTrackExtra.tpcCrossedRows() < 1)
Expand Down
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