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aortizve merged 1 commit into from
Jul 29, 2022
Merged

adding efficiency correction #1082

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146 changes: 132 additions & 14 deletions PWGMM/UE/Tasks/uecharged.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -20,8 +20,10 @@
#include "Common/DataModel/Multiplicity.h"
#include "Common/DataModel/EventSelection.h"
#include "Common/DataModel/TrackSelectionTables.h"
#include "Common/Core/TrackSelection.h"
#include "Framework/HistogramRegistry.h"
#include "Framework/StaticFor.h"
#include "TDatabasePDG.h"
#include <TH1F.h>
#include <TH2F.h>
#include <TF1.h>
Expand All @@ -37,13 +39,16 @@ using namespace o2::framework::expressions;

struct ueCharged {

float DeltaPhi(float phia, float phib, float rangeMin, float rangeMax);
TrackSelection myTrackSelection();

Service<TDatabasePDG> pdg;
float DeltaPhi(float phia, float phib, float rangeMin, float rangeMax);
Configurable<bool> isRun3{"isRun3", true, "is Run3 dataset"};
// acceptance cuts
Configurable<float> cfgTrkEtaCut{"cfgTrkEtaCut", 1.5f, "Eta range for tracks"};
Configurable<float> cfgTrkEtaCut{"cfgTrkEtaCut", 0.8f, "Eta range for tracks"};
Configurable<float> cfgTrkLowPtCut{"cfgTrkLowPtCut", 0.15f, "Minimum constituent pT"};

HistogramRegistry ue; //{"ue", {}, OutputObjHandlingPolicy::AnalysisObject, true, true};
HistogramRegistry ue;
static constexpr std::string_view pNumDenMeasuredPS[3] = {"pNumDenMeasuredPS_NS", "pNumDenMeasuredPS_AS", "pNumDenMeasuredPS_TS"};
static constexpr std::string_view pSumPtMeasuredPS[3] = {"pSumPtMeasuredPS_NS", "pSumPtMeasuredPS_AS", "pSumPtMeasuredPS_TS"};
static constexpr std::string_view hPhi[3] = {"hPhi_NS", "hPhi_AS", "hPhi_TS"};
Expand All @@ -62,6 +67,9 @@ struct ueCharged {
template <bool IS_MC, typename C, typename T>
void processMeas(const C& collision, const T& tracks);

template <typename C, typename P>
void processTrue(const C& collision, const P& particles);

Filter trackFilter = (nabs(aod::track::eta) < cfgTrkEtaCut) && (aod::track::pt > cfgTrkLowPtCut);

using CollisionTableData = soa::Join<aod::Collisions, aod::EvSels>;
Expand All @@ -70,11 +78,11 @@ struct ueCharged {
PROCESS_SWITCH(ueCharged, processData, "process data", false);

using CollisionTableMCTrue = aod::McCollisions;
using CollisionTableMC = soa::Join<aod::Collisions, aod::EvSels>;
using CollisionTableMC = soa::SmallGroups<soa::Join<aod::McCollisionLabels, aod::Collisions, aod::EvSels>>;
using TrackTableMC = soa::Filtered<soa::Join<aod::Tracks, aod::TracksExtra, aod::TracksDCA, aod::McTrackLabels, aod::TrackSelection>>;
using ParticleTableMC = aod::McParticles;
Preslice<TrackTableMC> perCollision = aod::track::collisionId;
void processMC(CollisionTableMC::iterator const& collision, TrackTableMC const& tracks);
void processMC(CollisionTableMCTrue::iterator const& mcCollision, CollisionTableMC const& collisions, TrackTableMC const& tracks, ParticleTableMC const& particles);
PROCESS_SWITCH(ueCharged, processMC, "process mc", false);
};
WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
Expand Down Expand Up @@ -120,6 +128,17 @@ void ueCharged::init(InitContext const&)

f_Eff.setObject(new TF1("fpara", "(x<0.22)*((-0.770334)+(6.32178)*x)+(x>=0.22&&x<0.4)*((0.310721)+(2.02610)*x+(-2.25005)*x*x)+(x>=0.4&&x<1.0)*((1.21232)+(-1.27511)*x+(0.588435)*x*x)+(x>=1.0&&x<5.5)*((0.502911)+(0.0416893)*x)+(x>=5.5)*(0.709143)", 0.15, 50.0));

if (doprocessMC) {
ue.add("hPtOut", "pT all rec; pT; Nch", HistType::kTH1D, {ptAxis});
ue.add("hPtInPrim", "pT mc prim; pT; Nch", HistType::kTH1D, {ptAxis});
ue.add("hPtOutPrim", "pT rec prim; pT; Nch", HistType::kTH1D, {ptAxis});
ue.add("hPtOutSec", "pT rec sec; pT; Nch", HistType::kTH1D, {ptAxis});
ue.add("hPtDCAall", "all MC; DCA_xy; Nch", HistType::kTH2D, {{ptAxis}, {121, -3.025, 3.025, "#it{DCA}_{xy} (cm)"}});
ue.add("hPtDCAPrimary", "primary; DCA_xy; Nch", HistType::kTH2D, {{ptAxis}, {121, -3.025, 3.025, "#it{DCA}_{xy} (cm)"}});
ue.add("hPtDCAWeak", "Weak decays; DCA_xy; Nch", HistType::kTH2D, {{ptAxis}, {121, -3.025, 3.025, "#it{DCA}_{xy} (cm)"}});
ue.add("hPtDCAMat", "Material; DCA_xy; Nch", HistType::kTH2D, {{ptAxis}, {121, -3.025, 3.025, "#it{DCA}_{xy} (cm)"}});
}

ue.add("hStat", "TotalEvents", HistType::kTH1F, {{1, 0.5, 1.5, " "}});
ue.add("hdNdeta", "dNdeta", HistType::kTH1F, {{50, -2.5, 2.5, " "}});
ue.add("vtxZEta", ";#eta;vtxZ", HistType::kTH2F, {{50, -2.5, 2.5, " "}, {60, -30, 30, " "}});
Expand Down Expand Up @@ -151,27 +170,81 @@ void ueCharged::init(InitContext const&)
ue.add("hPTVsDCAData", " ", HistType::kTH2D, {{ptAxis}, {121, -3.025, 3.025, "#it{DCA}_{xy} (cm)"}});
}

void ueCharged::processMC(CollisionTableMC::iterator const& collision, TrackTableMC const& tracks)
void ueCharged::processMC(CollisionTableMCTrue::iterator const& mcCollision, CollisionTableMC const& collisions, TrackTableMC const& tracks, ParticleTableMC const& particles)
{
processMeas<true>(collision, tracks);
if (collisions.size() != 0) {
for (auto& collision : collisions) {
auto curTracks = tracks.sliceBy(perCollision, collision.globalIndex());
processMeas<true>(collision, curTracks);
break; // for now look only at first collision...
}
}
processTrue(mcCollision, particles);
}

void ueCharged::processData(CollisionTableData::iterator const& collision, TrackTableData const& tracks)
{
processMeas<false>(collision, tracks);
}
template <typename C, typename P>
void ueCharged::processTrue(const C& collision, const P& particles)
{

int multTrue = 0;
for (auto& particle : particles) {
auto pdgParticle = pdg->GetParticle(particle.pdgCode());
if (!pdgParticle || pdgParticle->Charge() == 0.) {
continue;
}
if (!particle.isPhysicalPrimary()) {
continue;
}
if (std::abs(particle.eta()) >= cfgTrkEtaCut) {
continue;
}

multTrue++;
}
if (!((std::abs(collision.posZ()) < 10.f) && (multTrue > 0))) {
return;
}

for (auto& particle : particles) {
auto pdgParticle = pdg->GetParticle(particle.pdgCode());
if (!pdgParticle || pdgParticle->Charge() == 0.) {
continue;
}
if (!particle.isPhysicalPrimary()) {
continue;
}
if (std::abs(particle.eta()) >= cfgTrkEtaCut) {
continue;
}
ue.fill(HIST("hPtInPrim"), particle.pt());
}
}

template <bool IS_MC, typename C, typename T>
void ueCharged::processMeas(const C& collision, const T& tracks)
{

ue.fill(HIST("hCounter"), 0);

ue.fill(HIST("hCounter"), 1);
bool isAcceptedEvent = false;
if (std::abs(collision.posZ()) < 10.f) {
ue.fill(HIST("hCounter"), 1);
if (isRun3 ? collision.sel8() : collision.sel7()) {
if ((isRun3 || doprocessMC) ? true : collision.alias()[kINT7]) {
isAcceptedEvent = true;
}
}
}

ue.fill(HIST("hStat"), collision.size());
if (TMath::Abs(collision.posZ()) > 10.0) {
if (!isAcceptedEvent) {
return;
}

ue.fill(HIST("hStat"), collision.size());
auto vtxZ = collision.posZ();

ue.fill(HIST("hCounter"), 2);
Expand Down Expand Up @@ -211,13 +284,41 @@ void ueCharged::processMeas(const C& collision, const T& tracks)

for (auto& track : tracks) {

if (track.isGlobalTrack()) { // TODO: set cuts w/o DCA cut
if (myTrackSelection().IsSelected(track)) { // TODO: set cuts w/o DCA cut
ue.fill(HIST("hPTVsDCAData"), track.pt(), track.dcaXY());
}
if (!track.isGlobalTrack()) {
continue;
if constexpr (IS_MC) {
if (track.has_mcParticle()) {
if (track.isGlobalTrack()) {
ue.fill(HIST("hPtOut"), track.pt());
}
if (myTrackSelection().IsSelected(track)) {
ue.fill(HIST("hPtDCAall"), track.pt(), track.dcaXY());
}
const auto& particle = track.template mcParticle_as<aod::McParticles>();
if (particle.isPhysicalPrimary()) {

if (track.isGlobalTrack()) {
ue.fill(HIST("hPtOutPrim"), track.pt());
}
if (myTrackSelection().IsSelected(track)) {
ue.fill(HIST("hPtDCAPrimary"), track.pt(), track.dcaXY());
}
// LOGP(info, "this track has MC particle {}", 1);
} else {
if (track.isGlobalTrack()) {
ue.fill(HIST("hPtOutSec"), track.pt());
}
if (myTrackSelection().IsSelected(track)) {
if (particle.getGenStatusCode() >= 0) { // i guess these are decays
ue.fill(HIST("hPtDCAWeak"), track.pt(), track.dcaXY());
} else { // i guess these are from material
ue.fill(HIST("hPtDCAMat"), track.pt(), track.dcaXY());
}
}
}
}
}

// applying the efficiency twice for the misrec of leading particle
if (f_Eff->Eval(track.pt()) > gRandom->Uniform(0, 1)) {
ptArray.push_back(track.pt());
Expand Down Expand Up @@ -336,3 +437,20 @@ void ueCharged::processMeas(const C& collision, const T& tracks)
phiArray.clear();
indexArray.clear();
}
TrackSelection ueCharged::myTrackSelection()
{
TrackSelection selectedTracks;
selectedTracks.SetPtRange(0.1f, 1e10f);
selectedTracks.SetEtaRange(-0.8f, 0.8f);
selectedTracks.SetRequireITSRefit(true);
selectedTracks.SetRequireTPCRefit(true);
selectedTracks.SetRequireGoldenChi2(false);
selectedTracks.SetMinNCrossedRowsTPC(70);
selectedTracks.SetMinNCrossedRowsOverFindableClustersTPC(0.8f);
selectedTracks.SetMaxChi2PerClusterTPC(4.f);
selectedTracks.SetRequireHitsInITSLayers(1, {0, 1}); // one hit in any SPD layer
selectedTracks.SetMaxChi2PerClusterITS(36.f);
selectedTracks.SetMaxDcaXY(10.f);
selectedTracks.SetMaxDcaZ(10.f);
return selectedTracks;
}