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[PWGLF] Add option to study V0s from TPC-only and deep secondary tracks #15927

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Merged
romainschotter merged 4 commits into from
Apr 22, 2026
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Merged

[PWGLF] Add option to study V0s from TPC-only and deep secondary tracks #15927

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a018ec8
Add option to study V0s from TPC-only and deep secondary tracks
romainschotter Apr 22, 2026
9703ac1
Fix
romainschotter Apr 22, 2026
0d0a67a
Please consider the following formatting changes
alibuild Apr 22, 2026
bb728bc
Merge pull request #68 from alibuild/alibot-cleanup-15927
romainschotter Apr 22, 2026
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97 changes: 97 additions & 0 deletions PWGLF/Tasks/Strangeness/derivedlambdakzeroanalysis.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -218,6 +218,10 @@
Configurable<bool> skipTPConly{"skipTPConly", false, "skip V0s comprised of at least one TPC only prong"};
Configurable<bool> requirePosITSonly{"requirePosITSonly", false, "require that positive track is ITSonly (overrides TPC quality)"};
Configurable<bool> requireNegITSonly{"requireNegITSonly", false, "require that negative track is ITSonly (overrides TPC quality)"};
Configurable<bool> requirePosTPConly{"requirePosTPConly", false, "require that positive track is TPConly (overrides ITS-TOF quality)"};
Configurable<bool> requireNegTPConly{"requireNegTPConly", false, "require that negative track is TPConly (overrides ITS-TOF quality)"};
Configurable<bool> requirePosDeepSec{"requirePosDeepSec", false, "require that positive track is a deep secondary (overrides ITS quality)"};
Configurable<bool> requireNegDeepSec{"requireNegDeepSec", false, "require that negative track is a deep secondary (overrides ITS quality)"};
Configurable<bool> rejectPosITSafterburner{"rejectPosITSafterburner", false, "reject positive track formed out of afterburner ITS tracks"};
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"};
Expand Down Expand Up @@ -418,6 +422,10 @@
selNegGoodITSTrack, // at least min # ITS clusters
selPosItsOnly,
selNegItsOnly,
selPosTPCOnly,
selNegTPCOnly,
selPosDeepSec,
selNegDeepSec,
selPosNotTPCOnly,
selNegNotTPCOnly,
selConsiderK0Short, // for mc tagging
Expand Down Expand Up @@ -530,25 +538,50 @@
if (v0Selections.requirePosITSonly) {
BITSET(maskTrackProperties, selPosItsOnly);
BITSET(maskTrackProperties, selPosGoodITSTrack);
} else if (v0Selections.requirePosTPConly) {
BITSET(maskTrackProperties, selPosTPCOnly);
BITSET(maskTrackProperties, selPosGoodTPCTrack);
} else if (v0Selections.requirePosDeepSec) {
BITSET(maskTrackProperties, selPosDeepSec);
BITSET(maskTrackProperties, selPosGoodTPCTrack);
// TPC signal is available: ask for positive track PID
if (v0Selections.tpcPidNsigmaCut < 1e+5) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskK0ShortSpecific, selTPCPIDPositivePion);
BITSET(maskLambdaSpecific, selTPCPIDPositiveProton);
BITSET(maskAntiLambdaSpecific, selTPCPIDPositivePion);
}
// TOF PID
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutK0Pi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskK0ShortSpecific, selTOFNSigmaPositivePionK0Short);
BITSET(maskK0ShortSpecific, selTOFDeltaTPositivePionK0Short);
}
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutLaPr < 1e+5 || v0Selections.maxDeltaTimeProton < 1e+6) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskLambdaSpecific, selTOFNSigmaPositiveProtonLambda);
BITSET(maskLambdaSpecific, selTOFDeltaTPositiveProtonLambda);
}
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutLaPi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskAntiLambdaSpecific, selTOFNSigmaPositivePionLambda);
BITSET(maskAntiLambdaSpecific, selTOFDeltaTPositivePionLambda);
}
} else {
BITSET(maskTrackProperties, selPosGoodTPCTrack);
BITSET(maskTrackProperties, selPosGoodITSTrack);
// TPC signal is available: ask for positive track PID
if (v0Selections.tpcPidNsigmaCut < 1e+5) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskK0ShortSpecific, selTPCPIDPositivePion);
BITSET(maskLambdaSpecific, selTPCPIDPositiveProton);
BITSET(maskAntiLambdaSpecific, selTPCPIDPositivePion);
}
// TOF PID
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutK0Pi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskK0ShortSpecific, selTOFNSigmaPositivePionK0Short);
BITSET(maskK0ShortSpecific, selTOFDeltaTPositivePionK0Short);
}
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutLaPr < 1e+5 || v0Selections.maxDeltaTimeProton < 1e+6) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskLambdaSpecific, selTOFNSigmaPositiveProtonLambda);
BITSET(maskLambdaSpecific, selTOFDeltaTPositiveProtonLambda);
}
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requirePosHasTOF || v0Selections.tofPidNsigmaCutLaPi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskAntiLambdaSpecific, selTOFNSigmaPositivePionLambda);
BITSET(maskAntiLambdaSpecific, selTOFDeltaTPositivePionLambda);
}
Expand All @@ -556,6 +589,31 @@
if (v0Selections.requireNegITSonly) {
BITSET(maskTrackProperties, selNegItsOnly);
BITSET(maskTrackProperties, selNegGoodITSTrack);
} else if (v0Selections.requireNegTPConly) {
BITSET(maskTrackProperties, selNegTPCOnly);
BITSET(maskTrackProperties, selNegGoodTPCTrack);
} else if (v0Selections.requireNegDeepSec) {
BITSET(maskTrackProperties, selNegDeepSec);
BITSET(maskTrackProperties, selNegGoodTPCTrack);
// TPC signal is available: ask for negative track PID
if (v0Selections.tpcPidNsigmaCut < 1e+5) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskK0ShortSpecific, selTPCPIDNegativePion);
BITSET(maskLambdaSpecific, selTPCPIDNegativePion);
BITSET(maskAntiLambdaSpecific, selTPCPIDNegativeProton);
}
// TOF PID
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requireNegHasTOF || v0Selections.tofPidNsigmaCutK0Pi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
BITSET(maskK0ShortSpecific, selTOFNSigmaNegativePionK0Short);
BITSET(maskK0ShortSpecific, selTOFDeltaTNegativePionK0Short);
}
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requireNegHasTOF || v0Selections.tofPidNsigmaCutLaPi < 1e+5 || v0Selections.maxDeltaTimePion < 1e+6) { // safeguard for no cut
BITSET(maskLambdaSpecific, selTOFNSigmaNegativePionLambda);
BITSET(maskLambdaSpecific, selTOFDeltaTNegativePionLambda);
}
if (v0Selections.requireAtLeastOneHasTOF || v0Selections.requireNegHasTOF || v0Selections.tofPidNsigmaCutLaPr < 1e+5 || v0Selections.maxDeltaTimeProton < 1e+6) { // safeguard for no cut
BITSET(maskAntiLambdaSpecific, selTOFNSigmaNegativeProtonLambda);
BITSET(maskAntiLambdaSpecific, selTOFDeltaTNegativeProtonLambda);
}
} else {
BITSET(maskTrackProperties, selNegGoodTPCTrack);
BITSET(maskTrackProperties, selNegGoodITSTrack);
Expand Down Expand Up @@ -775,6 +833,10 @@
hSelectionV0s->GetXaxis()->SetBinLabel(selNegGoodITSTrack + 2, "Neg. good ITS track");
hSelectionV0s->GetXaxis()->SetBinLabel(selPosItsOnly + 2, "Pos. ITS-only");
hSelectionV0s->GetXaxis()->SetBinLabel(selNegItsOnly + 2, "Neg. ITS-only");
hSelectionV0s->GetXaxis()->SetBinLabel(selPosTPCOnly + 2, "Pos. TPC-only");
hSelectionV0s->GetXaxis()->SetBinLabel(selNegTPCOnly + 2, "Neg. TPC-only");
hSelectionV0s->GetXaxis()->SetBinLabel(selPosDeepSec + 2, "Pos. deep sec.");
hSelectionV0s->GetXaxis()->SetBinLabel(selNegDeepSec + 2, "Neg. deep sec.");
hSelectionV0s->GetXaxis()->SetBinLabel(selPosNotTPCOnly + 2, "Pos. not TPC-only");
hSelectionV0s->GetXaxis()->SetBinLabel(selNegNotTPCOnly + 2, "Neg. not TPC-only");
hSelectionV0s->GetXaxis()->SetBinLabel(selConsiderK0Short + 2, "True K^{0}_{S}");
Expand Down Expand Up @@ -1488,6 +1550,41 @@
BITSET(bitMap, selPosNotTPCOnly);
if (negTrackExtra.detectorMap() != o2::aod::track::TPC)
BITSET(bitMap, selNegNotTPCOnly);
if (!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TRD | o2::aod::track::TOF)) &&
!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TOF)) &&
!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TRD)) &&
!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC)) &&
!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::TPC | o2::aod::track::TRD | o2::aod::track::TOF)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::TPC | o2::aod::track::TOF)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::TPC | o2::aod::track::TRD)) &&
verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::TPC)))
BITSET(bitMap, selPosTPCOnly);
if (!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TRD | o2::aod::track::TOF)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TOF)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TRD)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::TPC | o2::aod::track::TRD | o2::aod::track::TOF)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::TPC | o2::aod::track::TOF)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::TPC | o2::aod::track::TRD)) &&
verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::TPC)))
BITSET(bitMap, selNegTPCOnly);
// deep secondary : TPC-TRD, TPC-TOF, TPC-TRD-TOF
if (!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TRD | o2::aod::track::TOF)) &&
!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TOF)) &&
!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TRD)) &&
!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC)) &&
!verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::ITS)) &&
verifyMask(posTrackExtra.detectorMap(), (o2::aod::track::TPC)))
BITSET(bitMap, selPosDeepSec);
if (!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TRD | o2::aod::track::TOF)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TOF)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC | o2::aod::track::TRD)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS | o2::aod::track::TPC)) &&
!verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::ITS)) &&
verifyMask(negTrackExtra.detectorMap(), (o2::aod::track::TPC)))
BITSET(bitMap, selNegDeepSec);

// proper lifetime
if (v0.distovertotmom(collision.posX(), collision.posY(), collision.posZ()) * o2::constants::physics::MassLambda0 < v0Selections.lifetimecut->get("lifetimecutLambda"))
Expand Down
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