From 9c4783d02c48ebfb19e95f807b59fab51f6bf037 Mon Sep 17 00:00:00 2001 From: ALICE Action Bot Date: Fri, 29 Aug 2025 17:53:31 +0200 Subject: [PATCH] Add electron TPCNsigma rejection in pion selection --- ...irTaskTrackTrackSpherHarMultKtExtended.cxx | 27 ++++++++++--------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackSpherHarMultKtExtended.cxx b/PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackSpherHarMultKtExtended.cxx index 3dfb7d7f4ed..8e978e81cf4 100644 --- a/PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackSpherHarMultKtExtended.cxx +++ b/PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackSpherHarMultKtExtended.cxx @@ -68,6 +68,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { struct : o2::framework::ConfigurableGroup { Configurable ConfNsigmaCombined{"ConfNsigmaCombined", 3.0f, "TPC and TOF Pion Sigma (combined) for momentum > ConfTOFPtMin"}; Configurable ConfNsigmaTPC{"ConfNsigmaTPC", 3.0f, "TPC Pion Sigma for momentum < ConfTOFPtMin"}; + Configurable ConfNsigmaTPCElReject{"ConfNsigmaTPCElReject", 2.0f, "TPC Electron Sigma for momentum < ConfTOFPtMin"}; Configurable ConfTOFPtMin{"ConfTOFPtMin", 0.5f, "Min. Pt for which TOF is required for PID."}; Configurable ConfEtaMax{"ConfEtaMax", 0.8f, "Higher limit for |Eta| (the same for both particles)"}; @@ -306,7 +307,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { } } - bool IsPionNSigma(float mom, float nsigmaTPCPi, float nsigmaTOFPi) + bool IsPionNSigma(float mom, float nsigmaTPCPi, float nsigmaTOFPi, float nsigmaTPCElReject) { //|nsigma_TPC| < 3 for p < 0.5 GeV/c //|nsigma_combined| < 3 for p > 0.5 @@ -317,7 +318,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { // ConfNsigmaCombined -> TPC and TOF Pion Sigma (combined) for momentum > 0.5 if (true) { if (mom < twotracksconfigs.ConfTOFPtMin) { - if (std::abs(nsigmaTPCPi) < twotracksconfigs.ConfNsigmaTPC) { + if ((std::abs(nsigmaTPCPi) < twotracksconfigs.ConfNsigmaTPC) && (std::abs(nsigmaTPCElReject) > twotracksconfigs.ConfNsigmaTPCElReject)) { return true; } else { return false; @@ -333,7 +334,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { return false; } - bool IsParticleNSigma(int8_t particle_number, float mom, float nsigmaTPCPr, float nsigmaTOFPr, float nsigmaTPCPi, float nsigmaTOFPi, float nsigmaTPCK, float nsigmaTOFK) + bool IsParticleNSigma(int8_t particle_number, float mom, float nsigmaTPCPr, float nsigmaTOFPr, float nsigmaTPCPi, float nsigmaTOFPi, float nsigmaTPCK, float nsigmaTOFK, float nsigmaTPCElReject) { if (particle_number == 1) { switch (trackonefilter.ConfPDGCodePartOne) { @@ -343,7 +344,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { break; case 211: // Pion+ case -211: // Pion- - return IsPionNSigma(mom, nsigmaTPCPi, nsigmaTOFPi); + return IsPionNSigma(mom, nsigmaTPCPi, nsigmaTOFPi, nsigmaTPCElReject); break; case 321: // Kaon+ case -321: // Kaon- @@ -361,7 +362,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { break; case 211: // Pion+ case -211: // Pion- - return IsPionNSigma(mom, nsigmaTPCPi, nsigmaTOFPi); + return IsPionNSigma(mom, nsigmaTPCPi, nsigmaTOFPi, nsigmaTPCElReject); break; case 321: // Kaon+ case -321: // Kaon- @@ -468,7 +469,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { /// Histogramming same event if ((ContType == 1 || ContType == 2) && fillQA) { for (const auto& part : groupPartsOne) { - if (!IsParticleNSigma((int8_t)1, 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))) { + if (!IsParticleNSigma((int8_t)1, 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), trackCuts.getNsigmaTPC(part, o2::track::PID::Electron))) { continue; } trackHistoPartOne.fillQA(part); @@ -478,7 +479,7 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { if ((ContType == 1 || ContType == 3) && fillQA) { for (const auto& part : groupPartsTwo) { - if (!IsParticleNSigma((int8_t)2, 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))) { + if (!IsParticleNSigma((int8_t)2, 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), trackCuts.getNsigmaTPC(part, o2::track::PID::Electron))) { continue; } trackHistoPartTwo.fillQA(part); @@ -490,11 +491,11 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { /// Now build the combinations for non-identical particle pairs for (const auto& [p1, p2] : combinations(CombinationsFullIndexPolicy(groupPartsOne, groupPartsTwo))) { - if (!IsParticleNSigma((int8_t)1, p1.p(), trackCuts.getNsigmaTPC(p1, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p1, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p1, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p1, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p1, o2::track::PID::Kaon))) { + if (!IsParticleNSigma((int8_t)1, p1.p(), trackCuts.getNsigmaTPC(p1, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p1, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p1, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p1, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTPC(p1, o2::track::PID::Electron))) { continue; } - if (!IsParticleNSigma((int8_t)2, p2.p(), trackCuts.getNsigmaTPC(p2, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p2, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p2, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p2, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p2, o2::track::PID::Kaon))) { + if (!IsParticleNSigma((int8_t)2, p2.p(), trackCuts.getNsigmaTPC(p2, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p2, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p2, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p2, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTPC(p2, o2::track::PID::Electron))) { continue; } @@ -520,11 +521,11 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { } else { for (const auto& [p1, p2] : combinations(CombinationsStrictlyUpperIndexPolicy(groupPartsOne, groupPartsOne))) { - if (!IsParticleNSigma((int8_t)2, p1.p(), trackCuts.getNsigmaTPC(p1, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p1, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p1, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p1, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p1, o2::track::PID::Kaon))) { + if (!IsParticleNSigma((int8_t)2, p1.p(), trackCuts.getNsigmaTPC(p1, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p1, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p1, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p1, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTPC(p1, o2::track::PID::Electron))) { continue; } - if (!IsParticleNSigma((int8_t)2, p2.p(), trackCuts.getNsigmaTPC(p2, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p2, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p2, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p2, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p2, o2::track::PID::Kaon))) { + if (!IsParticleNSigma((int8_t)2, p2.p(), trackCuts.getNsigmaTPC(p2, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p2, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p2, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p2, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTPC(p2, o2::track::PID::Electron))) { continue; } @@ -700,11 +701,11 @@ struct femtoUniversePairTaskTrackTrackSpherHarMultKtExtended { for (const auto& [p1, p2] : combinations(CombinationsFullIndexPolicy(groupPartsOne, groupPartsTwo))) { - if (!IsParticleNSigma((int8_t)2, p1.p(), trackCuts.getNsigmaTPC(p1, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p1, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p1, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p1, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p1, o2::track::PID::Kaon))) { + if (!IsParticleNSigma((int8_t)2, p1.p(), trackCuts.getNsigmaTPC(p1, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p1, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p1, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p1, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p1, o2::track::PID::Kaon), trackCuts.getNsigmaTPC(p1, o2::track::PID::Electron))) { continue; } - if (!IsParticleNSigma((int8_t)2, p2.p(), trackCuts.getNsigmaTPC(p2, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p2, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p2, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p2, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p2, o2::track::PID::Kaon))) { + if (!IsParticleNSigma((int8_t)2, p2.p(), trackCuts.getNsigmaTPC(p2, o2::track::PID::Proton), trackCuts.getNsigmaTOF(p2, o2::track::PID::Proton), trackCuts.getNsigmaTPC(p2, o2::track::PID::Pion), trackCuts.getNsigmaTOF(p2, o2::track::PID::Pion), trackCuts.getNsigmaTPC(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTOF(p2, o2::track::PID::Kaon), trackCuts.getNsigmaTPC(p2, o2::track::PID::Electron))) { continue; }