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jtanwar2212 merged 1 commit into from
Jun 19, 2025
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Please consider the following formatting changes to #11687 #1

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103 changes: 53 additions & 50 deletions PWGLF/Tasks/Nuspex/nucleitpcpbpb.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -11,34 +11,37 @@
///
/// \file nucleitpcpbpb.cxx
/// \brief nuclei analysis
/// \author Jaideep Tanwar <jaideep.tanwar@cern.ch>
/// \author Jaideep Tanwar <jaideep.tanwar@cern.ch>
///
#include <Math/Vector4D.h>
#include <limits>
#include <string>
#include <vector>
#include <TRandom3.h>
#include "Framework/runDataProcessing.h"
#include "Framework/AnalysisTask.h"
#include "Framework/AnalysisDataModel.h"
#include "Framework/ASoAHelpers.h"
#include "Common/Core/PID/PIDTOF.h"
#include "Common/Core/PID/TPCPIDResponse.h"
#include "Common/Core/RecoDecay.h"
#include "Common/Core/trackUtilities.h"
#include "Common/Core/PID/TPCPIDResponse.h"
#include "Common/DataModel/PIDResponseITS.h"
#include "Common/Core/PID/PIDTOF.h"
#include "Common/DataModel/TrackSelectionTables.h"
#include "Common/DataModel/EventSelection.h"
#include "Common/DataModel/Centrality.h"
#include "Common/DataModel/PIDResponse.h"
#include "Common/DataModel/CollisionAssociationTables.h"
#include "ReconstructionDataFormats/Track.h"
#include "DataFormatsTPC/BetheBlochAleph.h"
#include "DataFormatsParameters/GRPObject.h"
#include "Common/DataModel/EventSelection.h"
#include "Common/DataModel/PIDResponse.h"
#include "Common/DataModel/PIDResponseITS.h"
#include "Common/DataModel/TrackSelectionTables.h"

#include "CCDB/BasicCCDBManager.h"
#include "DataFormatsParameters/GRPMagField.h"
#include "DataFormatsParameters/GRPObject.h"
#include "DataFormatsTPC/BetheBlochAleph.h"
#include "DetectorsBase/GeometryManager.h"
#include "DetectorsBase/Propagator.h"
#include "CCDB/BasicCCDBManager.h"
#include "Framework/ASoAHelpers.h"
#include "Framework/AnalysisDataModel.h"
#include "Framework/AnalysisTask.h"
#include "Framework/runDataProcessing.h"
#include "ReconstructionDataFormats/Track.h"

#include <Math/Vector4D.h>
#include <TRandom3.h>

#include <limits>
#include <string>
#include <vector>
using namespace o2;
using namespace o2::framework;
using namespace o2::framework::expressions;
Expand All @@ -62,7 +65,7 @@ constexpr double betheBlochDefault[nParticles][nBetheParams]{
{-126.557359, -0.858569, 1.111643, 1.210323, 2.656374, 0.09}, // helion
{-126.557359, -0.858569, 1.111643, 1.210323, 2.656374, 0.09}}; // alpha
const int nTrkSettings = 18;
static const std::vector<std::string> trackPIDsettingsNames{"useBBparams", "minITSnCls", "minITSnClscos", "minTPCnCls", "maxTPCchi2","minTPCchi2", "maxITSchi2", "minRigidity", "maxRigidity", "maxTPCnSigma", "TOFrequiredabove", "minTOFmass", "maxTOFmass", "maxDcaXY", "maxDcaZ", "minITSclsSize", "maxITSclsSize", "minTPCnClsCrossedRows"};
static const std::vector<std::string> trackPIDsettingsNames{"useBBparams", "minITSnCls", "minITSnClscos", "minTPCnCls", "maxTPCchi2", "minTPCchi2", "maxITSchi2", "minRigidity", "maxRigidity", "maxTPCnSigma", "TOFrequiredabove", "minTOFmass", "maxTOFmass", "maxDcaXY", "maxDcaZ", "minITSclsSize", "maxITSclsSize", "minTPCnClsCrossedRows"};
constexpr double trackPIDsettings[nParticles][nTrkSettings]{
{0, 0, 4, 60, 4.0, 0.5, 100, 0.15, 1.2, 2.5, -1, 0, 100, 2., 2., 0., 1000, 70},
{1, 0, 4, 70, 4.0, 0.5, 100, 0.20, 4.0, 3.0, -1, 0, 100, 2., 2., 0., 1000, 70},
Expand Down Expand Up @@ -138,7 +141,7 @@ struct NucleitpcPbPb {
Configurable<float> cfgtpcNClsFound{"cfgtpcNClsFound", 100.0f, "min. no. of tpcNClsFound"};
Configurable<float> cfgitsNCls{"cfgitsNCls", 2.0f, "min. no. of itsNCls"};
o2::track::TrackParametrizationWithError<float> mTrackParCov;
//CCDB
// CCDB
Service<o2::ccdb::BasicCCDBManager> ccdb;
Configurable<double> bField{"bField", -999, "bz field, -999 is automatic"};
Configurable<std::string> ccdbUrl{"ccdbUrl", "http://alice-ccdb.cern.ch", "url of the ccdb repository"};
Expand Down Expand Up @@ -194,11 +197,11 @@ struct NucleitpcPbPb {
histos.add("histCentFT0M", "histCentFT0M", kTH1F, {axisCent});
hDeDx.resize(2 * nParticles + 2);
hNsigmaPt.resize(2 * nParticles + 2);
hmass.resize(2 * nParticles + 2);
hmass.resize(2 * nParticles + 2);
for (int i = 0; i < nParticles + 1; i++) {
TString histName = i < nParticles ? primaryParticles[i].name : "all";
if (cfgFillDeDxWithCut) {
hDeDx[2 * i] = histos.add<TH2>(Form("dedx/histdEdx_%s_Cuts", histName.Data()), ";p_{TPC}/z (GeV/#it{c}); d#it{E}/d#it{x}", HistType::kTH2F, {axisRigidity, axisdEdx});
hDeDx[2 * i] = histos.add<TH2>(Form("dedx/histdEdx_%s_Cuts", histName.Data()), ";p_{TPC}/z (GeV/#it{c}); d#it{E}/d#it{x}", HistType::kTH2F, {axisRigidity, axisdEdx});
}
}
for (int i = 0; i < nParticles; i++) {
Expand Down Expand Up @@ -244,7 +247,7 @@ struct NucleitpcPbPb {
if (track.itsNCls() < cfgTrackPIDsettings->get(i, "minITSnCls") && cfgminITSnClsRequire)
continue;
double cosheta = std::cosh(track.eta());
if ((track.itsNCls()/cosheta) < cfgTrackPIDsettings->get(i, "minITSnClscos") && cfgminITSnClscosRequire)
if ((track.itsNCls() / cosheta) < cfgTrackPIDsettings->get(i, "minITSnClscos") && cfgminITSnClscosRequire)
continue;
if (track.itsChi2NCl() > cfgTrackPIDsettings->get(i, "maxITSchi2") && cfgmaxITSchi2Require)
continue;
Expand All @@ -255,11 +258,11 @@ struct NucleitpcPbPb {
if ((getRigidity(track) < cfgTrackPIDsettings->get(i, "minRigidity") || getRigidity(track) > cfgTrackPIDsettings->get(i, "maxRigidity")) && cfgRigidityCutRequire)
continue;
float pt_momn;
setTrackParCov(track, mTrackParCov);
mTrackParCov.setPID(track.pidForTracking());
pt_momn = (i == 4 || i == 5) ? 2 * mTrackParCov.getPt() : mTrackParCov.getPt();
setTrackParCov(track, mTrackParCov);
mTrackParCov.setPID(track.pidForTracking());
pt_momn = (i == 4 || i == 5) ? 2 * mTrackParCov.getPt() : mTrackParCov.getPt();
bool insideDCAxy = (std::abs(track.dcaXY()) <= (cfgTrackPIDsettings->get(i, "maxDcaXY") * (0.0105f + 0.0350f / std::pow(pt_momn, 1.1f))));
if ((!(insideDCAxy) || std::abs(track.dcaZ()) > DCAzSigma( pt_momn, cfgTrackPIDsettings->get(i, "maxDcaZ"))) && cfgDCAwithptRequire)
if ((!(insideDCAxy) || std::abs(track.dcaZ()) > DCAzSigma(pt_momn, cfgTrackPIDsettings->get(i, "maxDcaZ"))) && cfgDCAwithptRequire)
continue;
if (track.sign() > 0) {
histos.fill(HIST("histDcaZVsPtData_particle"), pt_momn, track.dcaZ());
Expand All @@ -273,23 +276,23 @@ struct NucleitpcPbPb {
if ((std::abs(tpcNsigma) > cfgTrackPIDsettings->get(i, "maxTPCnSigma")) && cfgmaxTPCnSigmaRequire)
continue;
float itsSigma = getITSnSigma(track, primaryParticles.at(i));
if ((std::abs(itsSigma) > cfgITSnsigma) && cfgmaxITSnSigmaRequire)
if ((std::abs(itsSigma) > cfgITSnsigma) && cfgmaxITSnSigmaRequire)
continue;
fillnsigma(track, i);
filldedx(track, i);
//TOF selection
if (!track.hasTOF() && cfgTrackPIDsettings->get(i, "TOFrequiredabove") < 1)
// TOF selection
if (!track.hasTOF() && cfgTrackPIDsettings->get(i, "TOFrequiredabove") < 1)
continue;
float beta{o2::pid::tof::Beta::GetBeta(track)};
float charge{1.f + static_cast<float>(i == 4 || i == 5)};
float tofMasses = getRigidity(track) * charge * std::sqrt(1.f / (beta * beta) - 1.f);
float tofMasses = getRigidity(track) * charge * std::sqrt(1.f / (beta * beta) - 1.f);
if ((getRigidity(track) > cfgTrackPIDsettings->get(i, "TOFrequiredabove") && (tofMasses < cfgTrackPIDsettings->get(i, "minTOFmass") || tofMasses > cfgTrackPIDsettings->get(i, "maxTOFmass"))) && cfgmassRequire)
continue;
fillhmass(track, i);
}
histos.fill(HIST("histeta"), track.eta());
filldedx(track, nParticles);
} // track loop
} // track loop
}
//----------------------------------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------------------------------
Expand Down Expand Up @@ -397,9 +400,9 @@ struct NucleitpcPbPb {
int i = species;
const float tpcNsigma = getTPCnSigma(track, primaryParticles.at(i));
float pt_momn;
setTrackParCov(track, mTrackParCov);
setTrackParCov(track, mTrackParCov);
mTrackParCov.setPID(track.pidForTracking());
pt_momn = (i == 4 || i == 5) ? 2 * mTrackParCov.getPt() : mTrackParCov.getPt();
pt_momn = (i == 4 || i == 5) ? 2 * mTrackParCov.getPt() : mTrackParCov.getPt();
if (track.sign() > 0) {
hNsigmaPt[2 * species]->Fill(pt_momn, tpcNsigma);
}
Expand All @@ -420,15 +423,15 @@ struct NucleitpcPbPb {
if (beta <= 0.f || beta >= 1.f)
return;
float charge = (species == 4 || species == 5) ? 2.f : 1.f;
float p = getRigidity(track); // assuming this is the momentum from inner TPC
float p = getRigidity(track); // assuming this is the momentum from inner TPC
float massTOF = p * charge * std::sqrt(1.f / (beta * beta) - 1.f);
// get PDG mass
float pdgMass = particleMasses[species];
float massDiff = massTOF - pdgMass;
float pt_momn;
setTrackParCov(track, mTrackParCov);
setTrackParCov(track, mTrackParCov);
mTrackParCov.setPID(track.pidForTracking());
pt_momn = (species == 4 || species == 5) ? 2 * mTrackParCov.getPt() : mTrackParCov.getPt();
pt_momn = (species == 4 || species == 5) ? 2 * mTrackParCov.getPt() : mTrackParCov.getPt();
if (track.sign() > 0) {
hmass[2 * species]->Fill(pt_momn, massDiff * massDiff);
} else if (track.sign() < 0) {
Expand All @@ -438,7 +441,7 @@ struct NucleitpcPbPb {

//----------------------------------------------------------------------------------------------------------------
template <class T>
float getTPCnSigma(T const& track, PrimParticles & particle)
float getTPCnSigma(T const& track, PrimParticles& particle)
{
const float rigidity = getRigidity(track);
if (!track.hasTPC())
Expand All @@ -463,16 +466,16 @@ struct NucleitpcPbPb {
}
//----------------------------------------------------------------------------------------------------------------
template <class T>
float getITSnSigma(T const& track, PrimParticles & particle)
{
if (!track.hasITS())
return -999;
o2::aod::ITSResponse itsResponse;
if (particle.name == "helion")
return itsResponse.nSigmaITS<o2::track::PID::Helium3>(track);
float getITSnSigma(T const& track, PrimParticles& particle)
{
if (!track.hasITS())
return -999;
o2::aod::ITSResponse itsResponse;
if (particle.name == "helion")
return itsResponse.nSigmaITS<o2::track::PID::Helium3>(track);

return -999; // fallback if no match
}
return -999; // fallback if no match
}

//----------------------------------------------------------------------------------------------------------------
template <class T>
Expand All @@ -498,7 +501,7 @@ float getITSnSigma(T const& track, PrimParticles & particle)
}
float DCAzSigma(double pt, float dcasigma)
{
float invPt = 1.f/pt;
float invPt = 1.f / pt;
return (5.00000e-04 + 8.73690e-03 * invPt + 9.62329e-04 * invPt * invPt) * dcasigma; // o2-linter: disable=magic-number (To be checked)
}
//----------------------------------------------------------------------------------------------------------------
Expand Down