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[PWGLF] Add weight for mixing #12097

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Merged
skundu692 merged 10 commits into from
Jul 16, 2025
Merged

[PWGLF] Add weight for mixing #12097

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0d9defe
add new expression for angular correlation
skundu692 Jun 8, 2025
48b31be
Fix clang formating
skundu692 Jun 9, 2025
ba81ee5
Add new process function to study derived data
skundu692 Jun 11, 2025
8225896
Fix
skundu692 Jun 11, 2025
4d5410d
Fix clang and whitespace error
skundu692 Jun 18, 2025
dd381b3
Fix indexing issue in derived data
skundu692 Jun 19, 2025
8f94261
fix linter error
skundu692 Jun 19, 2025
e24549d
Modify azimuthal distribution
skundu692 Jul 10, 2025
6d861bd
fix clang format
skundu692 Jul 10, 2025
ae1a700
Add weight for mixing
skundu692 Jul 16, 2025
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46 changes: 43 additions & 3 deletions PWGLF/Tasks/Strangeness/lambdaspincorrderived.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -29,27 +29,49 @@
#include <Math/GenVector/Boost.h>
#include <Math/Vector3D.h>
#include <Math/Vector4D.h>
#include <TLorentzVector.h>

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[root/lorentz-vector] 

Do not use the TLorentzVector legacy class. Use std::array with RecoDecay methods or the ROOT::Math::LorentzVector template instead.
#include <TMath.h>

#include <fairlogger/Logger.h>

#include <iostream>

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[include-iostream] 

Do not include iostream. Use O2 logging instead.
#include <iterator>
#include <string>
#include <vector>

// o2 includes.
#include "CCDB/BasicCCDBManager.h"
#include "CCDB/CcdbApi.h"

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

struct lambdaspincorrderived {

struct : ConfigurableGroup {
Configurable<std::string> cfgURL{"cfgURL", "http://alice-ccdb.cern.ch", "Address of the CCDB to browse"};
Configurable<int64_t> nolaterthan{"ccdb-no-later-than", std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count(), "Latest acceptable timestamp of creation for the object"};
} cfgCcdbParam;

// Enable access to the CCDB for the offset and correction constants and save them in dedicated variables.
Service<o2::ccdb::BasicCCDBManager> ccdb;
o2::ccdb::CcdbApi ccdbApi;
TH3D* hweight1;
TH3D* hweight2;
TH3D* hweight3;

Configurable<std::string> ConfWeightPathLL{"ConfWeightPathLL", "Users/s/skundu/My/Object/spincorr/cent010LL", "Weight path"};
Configurable<std::string> ConfWeightPathALAL{"ConfWeightPathALAL", "Users/s/skundu/My/Object/spincorr/cent010LL", "Weight path"};
Configurable<std::string> ConfWeightPathLAL{"ConfWeightPathLAL", "Users/s/skundu/My/Object/spincorr/cent010LL", "Weight path"};

// event sel/////////
Configurable<float> centMin{"centMin", 0, "Minimum Centrality"};
Configurable<float> centMax{"centMax", 80, "Maximum Centrality"};

// Lambda selection ////////////
Configurable<bool> useweight{"useweight", 1, "Use weight"};
Configurable<bool> usePDGM{"usePDGM", 1, "Use PDG mass"};
Configurable<bool> checkDoubleStatus{"checkDoubleStatus", 0, "Check Double status"};
Configurable<float> cosPA{"cosPA", 0.995, "Cosine Pointing Angle"};
Expand Down Expand Up @@ -81,17 +103,17 @@
void init(o2::framework::InitContext&)
{
histos.add("hCentrality", "Centrality distribution", kTH1F, {{configThnAxisCentrality}});
histos.add("deltaPhiSame", "deltaPhiSame", HistType::kTH1D, {{72, 0.0, 2.0 * TMath::Pi()}}, true);

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[external-pi] 

Use the PI constant (and its multiples and fractions) defined in o2::constants::math.
histos.add("deltaPhiMix", "deltaPhiMix", HistType::kTH1D, {{72, 0.0, 2.0 * TMath::Pi()}}, true);

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[external-pi] 

Use the PI constant (and its multiples and fractions) defined in o2::constants::math.
histos.add("ptCent", "ptCent", HistType::kTH2D, {{100, 0.0, 10.0}, {8, 0.0, 80.0}}, true);
histos.add("etaCent", "etaCent", HistType::kTH2D, {{32, -0.8, 0.8}, {8, 0.0, 80.0}}, true);

histos.add("hLambdaSameForLL", "hLambdaSameForLL", HistType::kTH3D, {{50, 0.0, 5.0}, {32, -0.8, 0.8}, {72, 0.0, 2.0 * TMath::Pi()}}, true);

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[external-pi] 

Use the PI constant (and its multiples and fractions) defined in o2::constants::math.
histos.add("hLambdaSameForLAL", "hLambdaSameForLAL", HistType::kTH3D, {{50, 0.0, 5.0}, {32, -0.8, 0.8}, {72, 0.0, 2.0 * TMath::Pi()}}, true);

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[external-pi] 

Use the PI constant (and its multiples and fractions) defined in o2::constants::math.
histos.add("hAntiLambdaSameForALAL", "hAntiLambdaSameForALAL", HistType::kTH3D, {{50, 0.0, 5.0}, {32, -0.8, 0.8}, {72, 0.0, 2.0 * TMath::Pi()}}, true);

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[external-pi] 

Use the PI constant (and its multiples and fractions) defined in o2::constants::math.

histos.add("hLambdaMixForLL", "hLambdaMixForLL", HistType::kTH3D, {{50, 0.0, 5.0}, {32, -0.8, 0.8}, {72, 0.0, 2.0 * TMath::Pi()}}, true);

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[external-pi] 

Use the PI constant (and its multiples and fractions) defined in o2::constants::math.
histos.add("hLambdaMixForLAL", "hLambdaMixForLAL", HistType::kTH3D, {{50, 0.0, 5.0}, {32, -0.8, 0.8}, {72, 0.0, 2.0 * TMath::Pi()}}, true);

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[external-pi] 

Use the PI constant (and its multiples and fractions) defined in o2::constants::math.
histos.add("hAntiLambdaMixForALAL", "hAntiLambdaMixForALAL", HistType::kTH3D, {{50, 0.0, 5.0}, {32, -0.8, 0.8}, {72, 0.0, 2.0 * TMath::Pi()}}, true);

histos.add("hSparseLambdaLambda", "hSparseLambdaLambda", HistType::kTHnSparseF, {configThnAxisInvMass, configThnAxisInvMass, configThnAxisPol, configThnAxisCentrality, configThnAxisR}, true);
Expand All @@ -101,6 +123,16 @@
histos.add("hSparseLambdaLambdaMixed", "hSparseLambdaLambdaMixed", HistType::kTHnSparseF, {configThnAxisInvMass, configThnAxisInvMass, configThnAxisPol, configThnAxisCentrality, configThnAxisR}, true);
histos.add("hSparseLambdaAntiLambdaMixed", "hSparseLambdaAntiLambdaMixed", HistType::kTHnSparseF, {configThnAxisInvMass, configThnAxisInvMass, configThnAxisPol, configThnAxisCentrality, configThnAxisR}, true);
histos.add("hSparseAntiLambdaAntiLambdaMixed", "hSparseAntiLambdaAntiLambdaMixed", HistType::kTHnSparseF, {configThnAxisInvMass, configThnAxisInvMass, configThnAxisPol, configThnAxisCentrality, configThnAxisR}, true);

ccdb->setURL(cfgCcdbParam.cfgURL);
ccdbApi.init("http://alice-ccdb.cern.ch");
ccdb->setCaching(true);
ccdb->setLocalObjectValidityChecking();
ccdb->setCreatedNotAfter(std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count());
LOGF(info, "Getting alignment offsets from the CCDB...");
hweight1 = ccdb->getForTimeStamp<TH3D>(ConfWeightPathLL.value, cfgCcdbParam.nolaterthan.value);
hweight2 = ccdb->getForTimeStamp<TH3D>(ConfWeightPathALAL.value, cfgCcdbParam.nolaterthan.value);
hweight3 = ccdb->getForTimeStamp<TH3D>(ConfWeightPathLAL.value, cfgCcdbParam.nolaterthan.value);
}

template <typename T>
Expand Down Expand Up @@ -196,7 +228,7 @@
cosThetaDiff = proton1LambdaRF.Vect().Unit().Dot(proton2LambdaRF.Vect().Unit());
double deltaPhi = std::abs(RecoDecay::constrainAngle(particle1Dummy.Phi(), 0.0F) - RecoDecay::constrainAngle(particle2Dummy.Phi(), 0.0F));
double deltaEta = particle1Dummy.Eta() - particle2Dummy.Eta();
double deltaR = TMath::Sqrt(deltaEta * deltaEta + deltaPhi * deltaPhi);

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[root/entity] 

Replace ROOT entities with equivalents from standard C++ or from O2.

if (datatype == 0) {
if (tag1 == 0 && tag2 == 0) {
Expand All @@ -210,14 +242,22 @@
histos.fill(HIST("hAntiLambdaSameForALAL"), particle1.Pt(), particle1.Eta(), RecoDecay::constrainAngle(particle1.Phi(), 0.0F));
}
} else if (datatype == 1) {
double weight1 = 1.0;
double weight2 = 1.0;
double weight3 = 1.0;
if (useweight) {
weight1 = hweight1->GetBinContent(hweight1->FindBin(particle1.Pt() + 0.001, particle1.Eta() + 0.001, particle1.Phi() + 0.001));
weight2 = hweight2->GetBinContent(hweight2->FindBin(particle1.Pt() + 0.001, particle1.Eta() + 0.001, particle1.Phi() + 0.001));
weight3 = hweight3->GetBinContent(hweight3->FindBin(particle1.Pt() + 0.001, particle1.Eta() + 0.001, particle1.Phi() + 0.001));
}
if (tag1 == 0 && tag2 == 0) {
histos.fill(HIST("hSparseLambdaLambdaMixed"), particle1.M(), particle2.M(), cosThetaDiff, centrality, deltaR);
histos.fill(HIST("hSparseLambdaLambdaMixed"), particle1.M(), particle2.M(), cosThetaDiff, centrality, deltaR, weight1);
histos.fill(HIST("hLambdaMixForLL"), particle1.Pt(), particle1.Eta(), RecoDecay::constrainAngle(particle1.Phi(), 0.0F));
} else if ((tag1 == 0 && tag2 == 1) || (tag1 == 1 && tag2 == 0)) {
histos.fill(HIST("hSparseLambdaAntiLambdaMixed"), particle1.M(), particle2.M(), cosThetaDiff, centrality, deltaR);
histos.fill(HIST("hSparseLambdaAntiLambdaMixed"), particle1.M(), particle2.M(), cosThetaDiff, centrality, deltaR, weight2);
histos.fill(HIST("hLambdaMixForLAL"), particle1.Pt(), particle1.Eta(), RecoDecay::constrainAngle(particle1.Phi(), 0.0F));
} else if (tag1 == 1 && tag2 == 1) {
histos.fill(HIST("hSparseAntiLambdaAntiLambdaMixed"), particle1.M(), particle2.M(), cosThetaDiff, centrality, deltaR);
histos.fill(HIST("hSparseAntiLambdaAntiLambdaMixed"), particle1.M(), particle2.M(), cosThetaDiff, centrality, deltaR, weight3);
histos.fill(HIST("hAntiLambdaMixForALAL"), particle1.Pt(), particle1.Eta(), RecoDecay::constrainAngle(particle1.Phi(), 0.0F));
}
}
Expand Down
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