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Merged
ercolessi merged 1 commit into from
Oct 18, 2024
Merged

[PWGLF & PWGJE] Create V0 Selector Task #7958

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33 changes: 33 additions & 0 deletions PWGJE/Tasks/v0qa.cxx
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Expand Up @@ -32,6 +32,7 @@
#include "PWGJE/Core/JetFinder.h"
#include "PWGJE/Core/JetUtilities.h"
#include "PWGJE/Core/JetFindingUtilities.h"
#include "PWGLF/DataModel/V0SelectorTables.h"

using namespace o2;
using namespace o2::framework;
Expand Down Expand Up @@ -90,6 +91,9 @@ struct V0QA {
const AxisSpec axisLambdaM{binInvMassLambda, "M(p #pi^{-}) (GeV/c^{2})"};
const AxisSpec axisAntiLambdaM{binInvMassLambda, "M(#bar{p} #pi^{+}) (GeV/c^{2})"};

if (doprocessFlags) {
registry.add("inclusive/V0Flags", "V0Flags", HistType::kTH2D, {{4, -0.5, 3.5}, {4, -0.5, 3.5}});
}
if (doprocessMcD) {
registry.add("inclusive/hEvents", "Events", {HistType::kTH1D, {{2, 0.0f, 2.0f}}});
registry.add("inclusive/K0SPtEtaMass", "K0S Pt, Eta, Mass", HistType::kTH3D, {axisV0Pt, axisEta, axisK0SM});
Expand Down Expand Up @@ -230,6 +234,35 @@ struct V0QA {
void processDummy(CandidatesV0MCD const&) {}
PROCESS_SWITCH(V0QA, processDummy, "Dummy process function turned on by default", true);

void processFlags(soa::Join<aod::V0Datas, aod::V0SignalFlags>::iterator const& v0)
{
int isK0S = static_cast<int>(v0.isK0SCandidate());
int isLambda = static_cast<int>((v0.isLambdaCandidate()));
int isAntiLambda = static_cast<int>(v0.isAntiLambdaCandidate());
int isRejected = static_cast<int>(v0.isRejectedCandidate());

registry.fill(HIST("inclusive/V0Flags"), 0, 0, isK0S);
registry.fill(HIST("inclusive/V0Flags"), 1, 1, isLambda);
registry.fill(HIST("inclusive/V0Flags"), 2, 2, isAntiLambda);
registry.fill(HIST("inclusive/V0Flags"), 3, 3, isRejected);

registry.fill(HIST("inclusive/V0Flags"), 0, 1, isK0S * isLambda);
registry.fill(HIST("inclusive/V0Flags"), 1, 0, isK0S * isLambda);
registry.fill(HIST("inclusive/V0Flags"), 0, 2, isK0S * isAntiLambda);
registry.fill(HIST("inclusive/V0Flags"), 2, 0, isK0S * isAntiLambda);
registry.fill(HIST("inclusive/V0Flags"), 0, 3, isK0S * isRejected);
registry.fill(HIST("inclusive/V0Flags"), 3, 0, isK0S * isRejected);

registry.fill(HIST("inclusive/V0Flags"), 1, 2, isLambda * isAntiLambda);
registry.fill(HIST("inclusive/V0Flags"), 2, 1, isLambda * isAntiLambda);
registry.fill(HIST("inclusive/V0Flags"), 1, 3, isLambda * isRejected);
registry.fill(HIST("inclusive/V0Flags"), 3, 1, isLambda * isRejected);

registry.fill(HIST("inclusive/V0Flags"), 2, 3, isAntiLambda * isRejected);
registry.fill(HIST("inclusive/V0Flags"), 3, 2, isAntiLambda * isRejected);
}
PROCESS_SWITCH(V0QA, processFlags, "V0 flags", false);

void processMcD(soa::Filtered<JetCollisionsMCD>::iterator const& jcoll, JetMcCollisions const&, soa::Join<CandidatesV0MCD, aod::McV0Labels> const& v0s, aod::McParticles const&)
{
registry.fill(HIST("inclusive/hEvents"), 0.5);
Expand Down
55 changes: 55 additions & 0 deletions PWGLF/DataModel/V0SelectorTables.h
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@@ -0,0 +1,55 @@
// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
#ifndef PWGLF_DATAMODEL_V0SELECTORTABLES_H_
#define PWGLF_DATAMODEL_V0SELECTORTABLES_H_

namespace o2::aod
{

namespace v0flags
{

enum V0Flags : uint8_t {
FK0S = 0x1, // K0S candidate
FLAMBDA = 0x2, // Lambda candidate
FANTILAMBDA = 0x4, // AntiLambda candidate
FREJECTED = 0x8 // Does not satisfy any of the above, or is randomly rejected
};

DECLARE_SOA_COLUMN(SignalFlag, signalFlag, uint8_t);
DECLARE_SOA_DYNAMIC_COLUMN(IsK0SCandidate, isK0SCandidate, //! Flag to check if V0 is a K0S candidate
[](uint8_t flag) -> bool { return flag & o2::aod::v0flags::FK0S; });
DECLARE_SOA_DYNAMIC_COLUMN(IsLambdaCandidate, isLambdaCandidate, //! Flag to check if V0 is a Lambda candidate
[](uint8_t flag) -> bool { return flag & o2::aod::v0flags::FLAMBDA; });
DECLARE_SOA_DYNAMIC_COLUMN(IsAntiLambdaCandidate, isAntiLambdaCandidate, //! Flag to check if V0 is a AntiLambda candidate
[](uint8_t flag) -> bool { return flag & o2::aod::v0flags::FANTILAMBDA; });
DECLARE_SOA_DYNAMIC_COLUMN(IsRejectedCandidate, isRejectedCandidate, //! Flag to check if V0 is rejected
[](uint8_t flag) -> bool { return flag & o2::aod::v0flags::FREJECTED; });
} // namespace v0flags

DECLARE_SOA_TABLE(V0SignalFlags, "AOD", "V0SIGNALFLAGS",
v0flags::SignalFlag,
v0flags::IsK0SCandidate<v0flags::SignalFlag>,
v0flags::IsLambdaCandidate<v0flags::SignalFlag>,
v0flags::IsAntiLambdaCandidate<v0flags::SignalFlag>,
v0flags::IsRejectedCandidate<v0flags::SignalFlag>);

DECLARE_SOA_TABLE(StoredV0SignalFlags, "AOD1", "V0SIGNALFLAGS",
v0flags::SignalFlag,
v0flags::IsK0SCandidate<v0flags::SignalFlag>,
v0flags::IsLambdaCandidate<v0flags::SignalFlag>,
v0flags::IsAntiLambdaCandidate<v0flags::SignalFlag>,
v0flags::IsRejectedCandidate<v0flags::SignalFlag>,
o2::soa::Marker<1>);

} // namespace o2::aod

#endif // PWGLF_DATAMODEL_V0SELECTORTABLES_H_
5 changes: 5 additions & 0 deletions PWGLF/TableProducer/Strangeness/CMakeLists.txt
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Expand Up @@ -107,6 +107,11 @@ o2physics_add_dpl_workflow(strangederivedbuilder
PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore O2::DetectorsBase
COMPONENT_NAME Analysis)

o2physics_add_dpl_workflow(v0-selector
SOURCES v0selector.cxx
PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
COMPONENT_NAME Analysis)

o2physics_add_dpl_workflow(v0qaanalysis
SOURCES v0qaanalysis.cxx
PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
Expand Down
261 changes: 261 additions & 0 deletions PWGLF/TableProducer/Strangeness/v0selector.cxx
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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.

/// \brief Task to select V0s based on cuts
///
/// \author Gijs van Weelden <g.van.weelden@cern.ch>

#include <vector>
#include <string>
#include <TRandom3.h>

#include "Framework/runDataProcessing.h"
#include "Framework/AnalysisTask.h"
#include "Framework/AnalysisDataModel.h"
#include "Framework/ASoA.h"

#include "CommonConstants/PhysicsConstants.h"
#include "Common/Core/RecoDecay.h"

#include "PWGLF/DataModel/LFStrangenessTables.h"
#include "PWGLF/DataModel/V0SelectorTables.h"

using namespace o2;
using namespace o2::framework;
using namespace o2::framework::expressions;

struct V0SelectorTask {
Produces<aod::V0SignalFlags> v0FlagTable;

Configurable<std::vector<float>> K0SPtBins{"K0SPtBins", {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 10.0, 15.0, 20.0, 25.0, 30.0}, "K0S pt Vals"};
Configurable<std::vector<float>> K0SRVals{"K0SRVals", {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}, "K0S min R values"};
Configurable<std::vector<float>> K0SCtauVals{"K0SCtauVals", {20.0, 20.0, 20.0, 20.0, 20.0, 20.0, 20.0, 20.0, 20.0, 20.0}, "K0S max ctau values"};
Configurable<std::vector<float>> K0SCosPAVals{"K0SCosPAVals", {0.997, 0.997, 0.997, 0.997, 0.997, 0.997, 0.997, 0.997, 0.997, 0.997}, "K0S min cosPA values"};
Configurable<std::vector<float>> K0SDCAVals{"K0SDCAVals", {0.20, 0.20, 0.20, 0.20, 0.20, 0.20, 0.15, 0.15, 0.10, 0.10}, "K0S min DCA +- values"};
Configurable<std::vector<float>> K0SDCAdVals{"K0SDCAdVals", {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}, "K0S max DCAd values"};

Configurable<std::vector<float>> LambdaPtBins{"LambdaPtBins", {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 10.0, 15.0, 20.0}, "Lambda pt Vals"};
Configurable<std::vector<float>> LambdaRVals{"LambdaRVals", {1.0, 10.0, 10.0, 10.0, 10.0, 10.0, 20.0, 20.0}, "Lambda min R values"};
Configurable<std::vector<float>> LambdaCtauVals{"LambdaCtauVals", {22.5, 25.0, 25.0, 25.0, 25.0, 25.0, 25.0, 25.0}, "Lambda max ctau values"};
Configurable<std::vector<float>> LambdaCosPAVals{"LambdaCosPAVals", {0.997, 0.997, 0.997, 0.997, 0.997, 0.997, 0.997, 0.997}, "Lambda min cosPA values"};
Configurable<std::vector<float>> LambdaDCApVals{"LambdaDCApVals", {0.20, 0.10, 0.10, 0.10, 0.10, 0.10, 0.10, 0.10}, "Lambda min DCA+ values"};
Configurable<std::vector<float>> LambdaDCAnVals{"LambdaDCAnVals", {0.20, 0.20, 0.20, 0.20, 0.20, 0.20, 0.15, 0.15}, "Lambda min DCA- values"};
Configurable<std::vector<float>> LambdaDCAdVals{"LambdaDCAdVals", {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}, "Lambda max DCAd values"};

Configurable<std::vector<float>> AntiLambdaPtBins{"AntiLambdaPtBins", {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 10.0, 15.0, 20.0}, "AntiLambda pt Vals"};
Configurable<std::vector<float>> AntiLambdaRVals{"AntiLambdaRVals", {10.0, 10.0, 10.0, 10.0, 20.0, 20.0, 20.0, 20.0}, "AntiLambda min R values"};
Configurable<std::vector<float>> AntiLambdaCtauVals{"AntiLambdaCtauVals", {22.5, 25.0, 25.0, 25.0, 25.0, 25.0, 25.0, 25.0}, "AntiLambda max ctau values"};
Configurable<std::vector<float>> AntiLambdaCosPAVals{"AntiLambdaCosPAVals", {0.997, 0.997, 0.997, 0.997, 0.997, 0.997, 0.997, 0.997}, "AntiLambda min cosPA values"};
Configurable<std::vector<float>> AntiLambdaDCApVals{"AntiLambdaDCApVals", {0.20, 0.20, 0.20, 0.20, 0.20, 0.20, 0.20, 0.20}, "AntiLambda min DCA+ values"};
Configurable<std::vector<float>> AntiLambdaDCAnVals{"AntiLambdaDCAnVals", {0.20, 0.10, 0.10, 0.10, 0.10, 0.10, 0.10, 0.10}, "AntiLambda min DCA- values"};
Configurable<std::vector<float>> AntiLambdaDCAdVals{"AntiLambdaDCAdVals", {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}, "AntiLambda max DCAd values"};

Configurable<bool> massCuts{"massCuts", true, "Apply mass cuts"};
Configurable<bool> competingMassCuts{"competingMassCuts", true, "Apply competing mass cuts"};
Configurable<std::vector<float>> K0SMassLowVals{"K0SMassLowVals", {0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.4}, "K0S mass cut lower values (MeV)"};
Configurable<std::vector<float>> K0SMassHighVals{"K0SMassHighVals", {0.6, 0.6, 0.6, 0.6, 0.6, 0.6, 0.6, 0.6, 0.6, 0.6}, "K0S mass cut upper values (MeV)"};
Configurable<std::vector<float>> LambdaMassLowVals{"LambdaMassLowVals", {1.08, 1.08, 1.08, 1.08, 1.08, 1.08, 1.08, 1.08}, "Lambda mass cut lower values (MeV)"};
Configurable<std::vector<float>> LambdaMassHighVals{"LambdaMassHighVals", {1.125, 1.125, 1.125, 1.125, 1.125, 1.125, 1.125, 1.125}, "Lambda mass cut upper values (MeV)"};
Configurable<std::vector<float>> AntiLambdaMassLowVals{"AntiLambdaMassLowVals", {1.08, 1.08, 1.08, 1.08, 1.08, 1.08, 1.08, 1.08}, "AntiLambda mass cut lower values (MeV)"};
Configurable<std::vector<float>> AntiLambdaMassHighVals{"AntiLambdaMassHighVals", {1.125, 1.125, 1.125, 1.125, 1.125, 1.125, 1.125, 1.125}, "AntiLambda mass cut upper values (MeV)"};

Configurable<bool> randomSelection{"randomSelection", true, "Randomly select V0s"};
Configurable<std::vector<float>> K0SFraction{"randomSelectionFraction", {2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0}, "Fraction of K0S to randomly select"};
Configurable<std::vector<float>> LambdaFraction{"LambdaFraction", {2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0}, "Fraction of Lambda to randomly select"};
Configurable<std::vector<float>> AntiLambdaFraction{"AntiLambdaFraction", {2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0}, "Fraction of AntiLambda to randomly select"};

void init(InitContext const&)
{
}

template <typename T, typename U>
bool K0SCuts(T const& collision, U const& v0)
{
if (v0.pt() < K0SPtBins->at(0) || v0.pt() > K0SPtBins->at(K0SPtBins->size() - 1)) {
return false;
}
int ptBin = std::distance(K0SPtBins->begin(), std::upper_bound(K0SPtBins->begin(), K0SPtBins->end(), v0.pt())) - 1;
if (v0.v0radius() < K0SRVals->at(ptBin)) {
return false;
}
if (v0.v0cosPA() < K0SCosPAVals->at(ptBin)) {
return false;
}
if (v0.dcaV0daughters() > K0SDCAdVals->at(ptBin)) {
return false;
}
if (TMath::Abs(v0.dcapostopv()) < K0SDCAVals->at(ptBin)) {
return false;
}
if (TMath::Abs(v0.dcanegtopv()) < K0SDCAVals->at(ptBin)) {
return false;
}
float ctau = v0.distovertotmom(collision.posX(), collision.posY(), collision.posZ()) * o2::constants::physics::MassK0Short;
if (ctau < K0SCtauVals->at(ptBin)) {
return false;
}
// Apply mass cuts only if requested
if (!massCuts) {
return true;
}
if (v0.mK0Short() < K0SMassLowVals->at(ptBin) || v0.mK0Short() > K0SMassHighVals->at(ptBin)) {
return false;
}
if (!competingMassCuts) {
return true;
}
if (v0.mLambda() > LambdaMassLowVals->at(ptBin) && v0.mLambda() < LambdaMassHighVals->at(ptBin)) {
return false;
}
if (v0.mAntiLambda() > AntiLambdaMassLowVals->at(ptBin) && v0.mAntiLambda() < AntiLambdaMassHighVals->at(ptBin)) {
return false;
}
return true;
}
template <typename T, typename U>
bool LambdaCuts(T const& collision, U const& v0)
{
if (v0.pt() < LambdaPtBins->at(0) || v0.pt() > LambdaPtBins->at(LambdaPtBins->size() - 1)) {
return false;
}
int ptBin = std::distance(LambdaPtBins->begin(), std::upper_bound(LambdaPtBins->begin(), LambdaPtBins->end(), v0.pt())) - 1;
if (v0.v0radius() < LambdaRVals->at(ptBin)) {
return false;
}
if (v0.v0cosPA() < LambdaCosPAVals->at(ptBin)) {
return false;
}
if (v0.dcaV0daughters() > LambdaDCAdVals->at(ptBin)) {
return false;
}
if (TMath::Abs(v0.dcapostopv()) < LambdaDCApVals->at(ptBin)) {
return false;
}
if (TMath::Abs(v0.dcanegtopv()) < LambdaDCAnVals->at(ptBin)) {
return false;
}
float ctau = v0.distovertotmom(collision.posX(), collision.posY(), collision.posZ()) * o2::constants::physics::MassLambda0;
if (ctau < LambdaCtauVals->at(ptBin)) {
return false;
}
// Apply mass cuts only if requested
if (!massCuts) {
return true;
}
if (v0.mLambda() < LambdaMassLowVals->at(ptBin) || v0.mLambda() > LambdaMassHighVals->at(ptBin)) {
return false;
}
if (!competingMassCuts) {
return true;
}
if (v0.mK0Short() > K0SMassLowVals->at(ptBin) && v0.mK0Short() < K0SMassHighVals->at(ptBin)) {
return false;
}
return true;
}
template <typename T, typename U>
bool AntiLambdaCuts(T const& collision, U const& v0)
{
if (v0.pt() < AntiLambdaPtBins->at(0) || v0.pt() > AntiLambdaPtBins->at(AntiLambdaPtBins->size() - 1)) {
return false;
}
int ptBin = std::distance(AntiLambdaPtBins->begin(), std::upper_bound(AntiLambdaPtBins->begin(), AntiLambdaPtBins->end(), v0.pt())) - 1;
if (v0.v0radius() < AntiLambdaRVals->at(ptBin)) {
return false;
}
if (v0.v0cosPA() < AntiLambdaCosPAVals->at(ptBin)) {
return false;
}
if (v0.dcaV0daughters() > AntiLambdaDCAdVals->at(ptBin)) {
return false;
}
if (TMath::Abs(v0.dcapostopv()) < AntiLambdaDCApVals->at(ptBin)) {
return false;
}
if (TMath::Abs(v0.dcanegtopv()) < AntiLambdaDCAnVals->at(ptBin)) {
return false;
}
float ctau = v0.distovertotmom(collision.posX(), collision.posY(), collision.posZ()) * o2::constants::physics::MassLambda0;
if (ctau < AntiLambdaCtauVals->at(ptBin)) {
return false;
}
// Apply mass cuts only if requested
if (!massCuts) {
return true;
}
if (v0.mAntiLambda() < AntiLambdaMassLowVals->at(ptBin) || v0.mAntiLambda() > AntiLambdaMassHighVals->at(ptBin)) {
return false;
}
if (!competingMassCuts) {
return true;
}
if (v0.mK0Short() > K0SMassLowVals->at(ptBin) && v0.mK0Short() < K0SMassHighVals->at(ptBin)) {
return false;
}
return true;
}
template <typename T>
bool RandomlyReject(T const& v0, uint8_t flag)
{
if (!(flag & aod::v0flags::FK0S || flag & aod::v0flags::FLAMBDA || flag & aod::v0flags::FANTILAMBDA)) {
return true;
}

// In case of multiple candidate types, only check the lowest threshold value
float threshold = 2.;
if (flag & aod::v0flags::FK0S) {
int ptBin = std::distance(K0SPtBins->begin(), std::upper_bound(K0SPtBins->begin(), K0SPtBins->end(), v0.pt())) - 1;
if (threshold > K0SFraction->at(ptBin)) {
threshold = K0SFraction->at(ptBin);
}
}
if (flag & aod::v0flags::FLAMBDA) {
int ptBin = std::distance(LambdaPtBins->begin(), std::upper_bound(LambdaPtBins->begin(), LambdaPtBins->end(), v0.pt())) - 1;
if (threshold > LambdaFraction->at(ptBin)) {
threshold = LambdaFraction->at(ptBin);
}
}
if (flag & aod::v0flags::FANTILAMBDA) {
int ptBin = std::distance(AntiLambdaPtBins->begin(), std::upper_bound(AntiLambdaPtBins->begin(), AntiLambdaPtBins->end(), v0.pt())) - 1;
if (threshold > AntiLambdaFraction->at(ptBin)) {
threshold = AntiLambdaFraction->at(ptBin);
}
}
return (gRandom->Uniform() > threshold);
}

void processV0(aod::Collision const& collision, aod::V0Datas const& v0s)
{
for (const auto& v0 : v0s) {
bool candidateK0S = K0SCuts(collision, v0);
bool candidateLambda = LambdaCuts(collision, v0);
bool candidateAntiLambda = AntiLambdaCuts(collision, v0);
uint8_t flag = 0;
flag += candidateK0S * aod::v0flags::FK0S;
flag += candidateLambda * aod::v0flags::FLAMBDA;
flag += candidateAntiLambda * aod::v0flags::FANTILAMBDA;

if (candidateK0S + candidateLambda + candidateAntiLambda == 0) {
flag += aod::v0flags::FREJECTED;
} else if (randomSelection) {
flag += RandomlyReject(v0, flag) * aod::v0flags::FREJECTED;
}
v0FlagTable(flag);
}
}
PROCESS_SWITCH(V0SelectorTask, processV0, "flags V0 candidates as potential signal", true);
};

WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
{
return WorkflowSpec{
adaptAnalysisTask<V0SelectorTask>(cfgc, TaskName{"v0-selector"})};
}