From 755af8067720af00c403a8e26d34ed0ba8ebbcd9 Mon Sep 17 00:00:00 2001 From: Swati Saha Date: Sat, 20 Jun 2026 23:28:19 +0530 Subject: [PATCH] Changing PID selection at low-pT --- .../Tasks/v0ptHadPiKaProt.cxx | 44 ++++++++++++++++--- 1 file changed, 38 insertions(+), 6 deletions(-) diff --git a/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx b/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx index 701dd2d8eaa..648be423026 100644 --- a/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx +++ b/PWGCF/EbyEFluctuations/Tasks/v0ptHadPiKaProt.cxx @@ -600,10 +600,20 @@ struct V0ptHadPiKaProt { } if (candidate.pt() > cfgCutPtLower && candidate.pt() <= cfgCutPtUpperTPC) { - if (!candidate.hasTOF() && std::abs(partNsigmaTpcOrItsPr) < cfgnSigmaCutTPC) { + int flagg1 = 0; + if (candidate.tpcNSigmaPi() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaKa() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaPr() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaEl() < cfgnSigmaOtherParticles) + flagg1 += 1; + + if (!(flagg1 > 1) && !candidate.hasTOF() && std::abs(partNsigmaTpcOrItsPr) < cfgnSigmaCutTPC) { flag = 1; } - if (candidate.hasTOF() && std::abs(partNsigmaTpcOrItsPr) < cfgnSigmaCutTPC && std::abs(candidate.tofNSigmaPr()) < cfgnSigmaCutTOF) { + if (!(flagg1 > 1) && candidate.hasTOF() && std::abs(partNsigmaTpcOrItsPr) < cfgnSigmaCutTPC && std::abs(candidate.tofNSigmaPr()) < cfgnSigmaCutTOF) { flag = 1; } } @@ -667,10 +677,21 @@ struct V0ptHadPiKaProt { } if (candidate.pt() > cfgCutPtLower && candidate.pt() <= cfgCutPtUpperTPC) { - if (!candidate.hasTOF() && std::abs(partNsigmaTpcOrItsPi) < cfgnSigmaCutTPC) { + + int flagg1 = 0; + if (candidate.tpcNSigmaPi() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaKa() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaPr() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaEl() < cfgnSigmaOtherParticles) + flagg1 += 1; + + if (!(flagg1 > 1) && !candidate.hasTOF() && std::abs(partNsigmaTpcOrItsPi) < cfgnSigmaCutTPC) { flag = 1; } - if (candidate.hasTOF() && std::abs(partNsigmaTpcOrItsPi) < cfgnSigmaCutTPC && std::abs(candidate.tofNSigmaPi()) < cfgnSigmaCutTOF) { + if (!(flagg1 > 1) && candidate.hasTOF() && std::abs(partNsigmaTpcOrItsPi) < cfgnSigmaCutTPC && std::abs(candidate.tofNSigmaPi()) < cfgnSigmaCutTOF) { flag = 1; } } @@ -734,10 +755,21 @@ struct V0ptHadPiKaProt { } if (candidate.pt() > cfgCutPtLower && candidate.pt() <= cfgCutPtUpperTPC) { - if (!candidate.hasTOF() && std::abs(partNsigmaTpcOrItsKa) < cfgnSigmaCutTPC) { + + int flagg1 = 0; + if (candidate.tpcNSigmaPi() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaKa() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaPr() < cfgnSigmaOtherParticles) + flagg1 += 1; + if (candidate.tpcNSigmaEl() < cfgnSigmaOtherParticles) + flagg1 += 1; + + if (!(flagg1 > 1) && !candidate.hasTOF() && std::abs(partNsigmaTpcOrItsKa) < cfgnSigmaCutTPC) { flag = 1; } - if (candidate.hasTOF() && std::abs(partNsigmaTpcOrItsKa) < cfgnSigmaCutTPC && std::abs(candidate.tofNSigmaKa()) < cfgnSigmaCutTOF) { + if (!(flagg1 > 1) && candidate.hasTOF() && std::abs(partNsigmaTpcOrItsKa) < cfgnSigmaCutTPC && std::abs(candidate.tofNSigmaKa()) < cfgnSigmaCutTOF) { flag = 1; } }