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[PWGLF] V0 analysis: add feeddown for Lambdas #12971

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Merged
ercolessi merged 1 commit into from
Sep 12, 2025
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[PWGLF] V0 analysis: add feeddown for Lambdas #12971

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51 changes: 25 additions & 26 deletions PWGLF/Tasks/Strangeness/v0postprocessing.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -13,14 +13,16 @@
/// \author Francesca Ercolessi (francesca.ercolessi@cern.ch)
/// \since

#include "Framework/runDataProcessing.h"
#include "Framework/AnalysisTask.h"
#include "Common/DataModel/TrackSelectionTables.h"
#include "PWGLF/DataModel/LFStrangenessTables.h"
#include "PWGLF/DataModel/v0qaanalysis.h"

#include "Common/DataModel/EventSelection.h"
#include "Common/DataModel/PIDResponse.h"
#include "Common/DataModel/TrackSelectionTables.h"

#include "CommonConstants/PhysicsConstants.h"
#include "Framework/AnalysisTask.h"
#include "Framework/runDataProcessing.h"

using namespace o2;
using namespace o2::framework;
Expand Down Expand Up @@ -122,11 +124,11 @@
registry.add("hMassLambda_MC", "hMassLambda", {HistType::kTH1F, {{200, 1.016f, 1.216f}}});
registry.add("hMassVsPtLambdaVsCentFT0M_MC", ";p_{T} [GeV/c];M_{p^{+}#pi^{-}} [GeV/c^{2}]", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {100, 0.f, 100.f}, {200, 1.016f, 1.216f}}});
registry.add("hMassAntiLambda_MC", "hMassAntiLambda", {HistType::kTH1F, {{200, 1.016f, 1.216f}}});
registry.add("hMassVsPtLambdaVsMotherPt_DoubleCharged_MC", ";p_{T} [GeV/c] (V0);p_{T}^{gen} [GeV/c] (Xi);M_{p^{-}#pi^{+}} [GeV/c^{2}]", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {250, 0.0f, 25.0f}, {200, 1.016f, 1.216f}}});
registry.add("hMassVsPtLambdaVsMotherPt_MCRatio_MC", ";p_{T} [GeV/c] (V0);p_{T}^{gen} [GeV/c] (Xi);M_{p^{-}#pi^{+}} [GeV/c^{2}]", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {250, 0.0f, 25.0f}, {200, 1.016f, 1.216f}}});
registry.add("hFDVsPtLambdaVsMotherPt_DoubleCharged_MC", ";p_{T} [GeV/c] (V0);p_{T}^{gen} [GeV/c] (#Xi^{-}); percentile", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {250, 0.0f, 25.0f}, {100, 0.f, 100.f}}});
registry.add("hFDVsPtLambdaVsMotherPt_MCRatio_MC", ";p_{T} [GeV/c] (V0);p_{T}^{gen} [GeV/c] (#Xi^{-/0}); percentile", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {250, 0.0f, 25.0f}, {100, 0.f, 100.f}}});
registry.add("hMassVsPtAntiLambdaVsCentFT0M_MC", ";p_{T} [GeV/c];M_{p^{-}#pi^{+}} [GeV/c^{2}]", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {100, 0.f, 100.f}, {200, 1.016f, 1.216f}}});
registry.add("hMassVsPtAntiLambdaVsMotherPt_DoubleCharged_MC", ";p_{T} [GeV/c] (V0);p_{T}^{gen} [GeV/c] (Xi);M_{p^{-}#pi^{+}} [GeV/c^{2}]", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {250, 0.0f, 25.0f}, {200, 1.016f, 1.216f}}});
registry.add("hMassVsPtAntiLambdaVsMotherPt_MCRatio_MC", ";p_{T} [GeV/c] (V0);p_{T}^{gen} [GeV/c] (Xi);M_{p^{-}#pi^{+}} [GeV/c^{2}]", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {250, 0.0f, 25.0f}, {200, 1.016f, 1.216f}}});
registry.add("hFDVsPtAntiLambdaVsMotherPt_DoubleCharged_MC", ";p_{T} [GeV/c] (V0);p_{T}^{gen} [GeV/c] (#bar{#Xi}^{+});percentile", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {250, 0.0f, 25.0f}, {100, 0.f, 100.f}}});
registry.add("hFDVsPtAntiLambdaVsMotherPt_MCRatio_MC", ";p_{T} [GeV/c] (V0);p_{T}^{gen} [GeV/c] (#bar{#Xi}^{+/0});percentile", {HistType::kTH3F, {{250, 0.0f, 25.0f}, {250, 0.0f, 25.0f}, {100, 0.f, 100.f}}});
}

if (doQA) {
Expand Down Expand Up @@ -326,7 +328,7 @@

void process(aod::MyV0Candidates const& myv0s)
{
for (auto& candidate : myv0s) {

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[const-ref-in-for-loop] 

Use constant references for non-modified iterators in range-based for loops.

if (doQA) {
registry.fill(HIST("QA/hK0sSelection"), 0.5);
Expand Down Expand Up @@ -398,7 +400,7 @@
if (candidate.v0cospa() > cospaK0s &&
std::abs(candidate.rapk0short()) < rap &&
candidate.ctauk0short() < ctauK0s &&
std::abs(candidate.massk0short() - o2::constants::physics::MassK0Short) < 0.075 &&
std::abs(candidate.massk0short() - o2::constants::physics::MassK0Short) < 0.1 &&

Check failure on line 403 in PWGLF/Tasks/Strangeness/v0postprocessing.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
std::abs(candidate.masslambda() - o2::constants::physics::MassLambda0) > v0rejK0s &&
std::abs(candidate.ntpcsigmanegpi()) <= ntpcsigma &&
std::abs(candidate.ntpcsigmapospi()) <= ntpcsigma &&
Expand All @@ -409,7 +411,7 @@
registry.fill(HIST("hMassVsPtK0ShortVsCentFT0M"), candidate.v0pt(), candidate.multft0m(), candidate.massk0short());

if (isMC &&
candidate.pdgcode() == 310 &&

Check failure on line 414 in PWGLF/Tasks/Strangeness/v0postprocessing.cxx

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
candidate.isdauk0short() &&
candidate.isphysprimary() == 1) {

Expand Down Expand Up @@ -448,20 +450,17 @@
registry.fill(HIST("hMassVsPtLambda"), candidate.v0pt(), candidate.masslambda());
registry.fill(HIST("hMassVsPtLambdaVsCentFT0M"), candidate.v0pt(), candidate.multft0m(), candidate.masslambda());

if (isMC) {

if (candidate.pdgcode() == 3122 && candidate.isdaulambda()) {

if (candidate.isphysprimary() == 1) {
registry.fill(HIST("hMassLambda_MC"), candidate.masslambda());
registry.fill(HIST("hMassVsPtLambdaVsCentFT0M_MC"), candidate.v0pt(), candidate.multft0m(), candidate.masslambda());
}
if (isMC && candidate.pdgcode() == 3122 && candidate.isdaulambda()) {

Check failure on line 453 in PWGLF/Tasks/Strangeness/v0postprocessing.cxx

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.

if (candidate.isphysprimary() == 1) {
registry.fill(HIST("hMassLambda_MC"), candidate.masslambda());
registry.fill(HIST("hMassVsPtLambdaVsCentFT0M_MC"), candidate.v0pt(), candidate.multft0m(), candidate.masslambda());
} else if (std::abs(candidate.masslambda() - o2::constants::physics::MassLambda0) < 0.01) {
if (candidate.pdgcodemother() == 3312) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registry.fill(HIST("hMassVsPtLambdaVsMotherPt_DoubleCharged_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.masslambda());
registry.fill(HIST("hFDVsPtLambdaVsMotherPt_DoubleCharged_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.multft0m());
}
if (candidate.pdgcodemother() == 3312 || candidate.pdgcodemother() == 3322) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registry.fill(HIST("hMassVsPtLambdaVsMotherPt_MCRatio_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.masslambda());
registry.fill(HIST("hFDVsPtLambdaVsMotherPt_MCRatio_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.multft0m());
}
}
}
Expand Down Expand Up @@ -489,18 +488,18 @@
registry.fill(HIST("hMassVsPtAntiLambda"), candidate.v0pt(), candidate.massantilambda());
registry.fill(HIST("hMassVsPtAntiLambdaVsCentFT0M"), candidate.v0pt(), candidate.multft0m(), candidate.massantilambda());

if (candidate.pdgcode() == -3122 && candidate.isdauantilambda()) {
if (isMC && candidate.pdgcode() == -3122 && candidate.isdauantilambda()) {

Check failure on line 491 in PWGLF/Tasks/Strangeness/v0postprocessing.cxx

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.

if (candidate.isphysprimary() == 1) {
registry.fill(HIST("hMassAntiLambda_MC"), candidate.massantilambda());
registry.fill(HIST("hMassVsPtAntiLambdaVsCentFT0M_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.massantilambda());
}

if (candidate.pdgcodemother() == -3312) {
registry.fill(HIST("hMassVsPtAntiLambdaVsMotherPt_DoubleCharged_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.massantilambda());
}
if (candidate.pdgcodemother() == -3312 || candidate.pdgcodemother() == -3322) {
registry.fill(HIST("hMassVsPtAntiLambdaVsMotherPt_MCRatio_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.massantilambda());
} else if (std::abs(candidate.massantilambda() - o2::constants::physics::MassLambda0) < 0.01) {
if (candidate.pdgcodemother() == -3312) {

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registry.fill(HIST("hFDVsPtAntiLambdaVsMotherPt_DoubleCharged_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.multft0m());
}
if (candidate.pdgcodemother() == -3312 || candidate.pdgcodemother() == -3322) {

Check failure on line 500 in PWGLF/Tasks/Strangeness/v0postprocessing.cxx

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
registry.fill(HIST("hFDVsPtAntiLambdaVsMotherPt_MCRatio_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.multft0m());
}
}
}

Expand Down
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