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PWGMM: dndeta: add track selection and more control histos #1051

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Merged
aalkin merged 4 commits into from
Jul 25, 2022
Merged

PWGMM: dndeta: add track selection and more control histos #1051

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2daa114
event chi2 and timeRes
aalkin Jul 20, 2022
6cc8837
remove zdiff cut
aalkin Jul 25, 2022
cef4943
use central track selection
aalkin Jul 25, 2022
f20b41e
fix
aalkin Jul 25, 2022
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50 changes: 22 additions & 28 deletions PWGMM/Mult/Tasks/dndeta.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@
using namespace o2;
using namespace o2::framework;
using namespace o2::framework::expressions;
using namespace o2::aod::track;

AxisSpec ZAxis = {301, -30.1, 30.1};
AxisSpec DeltaZAxis = {61, -6.1, 6.1};
Expand All @@ -39,6 +40,16 @@ AxisSpec MultAxis = {301, -0.5, 300.5};
AxisSpec PhiAxis = {629, 0, 2 * M_PI};
AxisSpec PtAxis = {2401, -0.005, 24.005};

static constexpr TrackSelectionFlags::flagtype trackSelectionPattern = TrackSelectionFlags::kTrackType |
TrackSelectionFlags::kTPCNCls |
TrackSelectionFlags::kTPCCrossedRowsOverNCls |
TrackSelectionFlags::kTPCChi2NDF |
TrackSelectionFlags::kITSChi2NDF |
TrackSelectionFlags::kITSHits |
TrackSelectionFlags::kGoldenChi2 |
TrackSelectionFlags::kDCAz |
TrackSelectionFlags::kDCAxy;

using LabeledTracks = soa::Join<aod::Tracks, aod::McTrackLabels>;

struct MultiplicityCounter {
Expand All @@ -48,8 +59,6 @@ struct MultiplicityCounter {
Configurable<bool> useEvSel{"useEvSel", true, "use event selection"};
Configurable<float> maxDCAZ{"maxDCAZ", 0.3f, "max track DCAZ"};
Configurable<bool> useDCAZcut{"useDCAZcut", true, "apply track DCAZ cut"};
Configurable<bool> useZDfiffCut{"useZDiffCut", true, "use Z difference cut"};
Configurable<float> maxZDiff{"maxZDiff", 1.0f, "max allowed Z difference for reconstruced collisions (cm)"};
Configurable<bool> fillResponse{"fillResponse", false, "Fill response matrix"};

HistogramRegistry registry{
Expand All @@ -62,7 +71,9 @@ struct MultiplicityCounter {
{"Tracks/Control/PtEta", " ; p_{T} (GeV/c); #eta", {HistType::kTH2F, {PtAxis, EtaAxis}}}, //
{"Tracks/Control/DCAXYPt", " ; p_{T} (GeV/c) ; DCA_{XY} (cm)", {HistType::kTH2F, {PtAxis, DCAAxis}}}, //
{"Tracks/Control/DCAZPt", " ; p_{T} (GeV/c) ; DCA_{Z} (cm)", {HistType::kTH2F, {PtAxis, DCAAxis}}}, //
{"Events/Selection", ";status;events", {HistType::kTH1F, {{7, 0.5, 7.5}}}} //
{"Events/Selection", ";status;events", {HistType::kTH1F, {{7, 0.5, 7.5}}}}, //
{"Events/Control/Chi2", " ; #chi^2", {HistType::kTH1F, {{101, -0.1, 10.1}}}}, //
{"Events/Control/TimeResolution", " ; t (ms)", {HistType::kTH1F, {{1001, -0.1, 100.1}}}} //
} //
};

Expand Down Expand Up @@ -90,11 +101,9 @@ struct MultiplicityCounter {
registry.add({"Tracks/PhiEtaGen", "; #varphi; #eta; tracks", {HistType::kTH2F, {PhiAxis, EtaAxis}}});
registry.add({"Tracks/Control/PhiEtaGenDuplicates", "; #varphi; #eta; tracks", {HistType::kTH2F, {PhiAxis, EtaAxis}}});
registry.add({"Tracks/Control/PhiEtaDuplicates", "; #varphi; #eta; tracks", {HistType::kTH2F, {PhiAxis, EtaAxis}}});
registry.add({"Events/Efficiency", "; status; events", {HistType::kTH1F, {{7, 0.5, 7.5}}}});
registry.add({"Events/Efficiency", "; status; events", {HistType::kTH1F, {{5, 0.5, 5.5}}}});
registry.add({"Events/NotFoundEventZvtx", " ; Z_{vtx} (cm)", {HistType::kTH1F, {ZAxis}}});

registry.add({"Events/ZposDiff", " ; Z_{rec} - Z_{gen} (cm)", {HistType::kTH1F, {DeltaZAxis}}});

if (fillResponse) {
registry.add({"Events/Response", " ; N_{rec}; N_{gen}; Z_{vtx} (cm)", {HistType::kTH3F, {MultAxis, MultAxis, ZAxis}}});
registry.add({"Events/EfficiencyMult", " ; N_{gen}; Z_{vtx} (cm)", {HistType::kTH2F, {MultAxis, ZAxis}}});
Expand All @@ -108,8 +117,6 @@ struct MultiplicityCounter {
x->SetBinLabel(3, "Reconstructed");
x->SetBinLabel(4, "Selected");
x->SetBinLabel(5, "Selected INEL>0");
x->SetBinLabel(6, "Selected (Zdiff)");
x->SetBinLabel(7, "Selected INEL>0 (ZDiff)");
}

if (doprocessTrackEfficiency) {
Expand Down Expand Up @@ -151,16 +158,19 @@ struct MultiplicityCounter {
registry.fill(HIST("Events/Selection"), 7.);
}
}
for (auto& col : cols) {
registry.fill(HIST("Events/Control/Chi2"), col.chi2());
registry.fill(HIST("Events/Control/TimeResolution"), col.collisionTimeRes());
}
}
}
}

PROCESS_SWITCH(MultiplicityCounter, processEventStat, "Collect event sample stats", false);

expressions::Filter ITStracks = (aod::track::detectorMap & (uint8_t)o2::aod::track::ITS) != (uint8_t)0;
expressions::Filter tracksDCAcut = ifnode(useDCAZcut.node() == false, true, nabs(aod::track::dcaZ) <= maxDCAZ);
expressions::Filter trackSelectionFilter = (aod::track::trackCutFlag & trackSelectionPattern) == trackSelectionPattern;

using ExTracks = soa::Join<aod::Tracks, aod::TracksExtra, aod::TracksDCA>;
using ExTracks = soa::Join<aod::Tracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA>;
using FiTracks = soa::Filtered<ExTracks>;
Partition<FiTracks> sample = nabs(aod::track::eta) < estimatorEta;

Expand Down Expand Up @@ -194,7 +204,7 @@ struct MultiplicityCounter {
PROCESS_SWITCH(MultiplicityCounter, processCounting, "Count tracks", false);

using Particles = soa::Filtered<aod::McParticles>;
using LabeledTracksEx = soa::Join<LabeledTracks, aod::TracksExtra, aod::TracksDCA>;
using LabeledTracksEx = soa::Join<LabeledTracks, aod::TracksExtra, aod::TrackSelection, aod::TracksDCA>;
using Particle = Particles::iterator;
using ParticlesI = soa::Join<aod::McParticles, aod::ParticlesToTracks>;
expressions::Filter primaries = (aod::mcparticle::flags & (uint8_t)o2::aod::mcparticle::enums::PhysicalPrimary) == (uint8_t)o2::aod::mcparticle::enums::PhysicalPrimary;
Expand All @@ -215,11 +225,6 @@ struct MultiplicityCounter {
continue;
}
auto mcCollision = collision.mcCollision();
if (useZDfiffCut) {
if (std::abs(collision.posZ() - mcCollision.posZ()) > maxZDiff) {
continue;
}
}
auto particlesI = primariesI->sliceByCached(aod::mcparticle::mcCollisionId, mcCollision.globalIndex());
particlesI.bindExternalIndices(&tracks);

Expand Down Expand Up @@ -309,11 +314,6 @@ struct MultiplicityCounter {
continue;
}
auto mcCollision = collision.mcCollision();
if (useZDfiffCut) {
if (std::abs(collision.posZ() - mcCollision.posZ()) > maxZDiff) {
continue;
}
}
auto particles = mcSample->sliceByCached(aod::mcparticle::mcCollisionId, mcCollision.globalIndex());
auto tracks = lsample->sliceByCached(aod::track::collisionId, collision.globalIndex());
tracks.bindExternalIndices(&mcParticles);
Expand Down Expand Up @@ -382,12 +382,6 @@ struct MultiplicityCounter {
registry.fill(HIST("Events/Efficiency"), 5.);
}

registry.fill(HIST("Events/ZposDiff"), collision.posZ() - mcCollision.posZ());
if (useZDfiffCut) {
if (std::abs(collision.posZ() - mcCollision.posZ()) > maxZDiff) {
continue;
}
}
registry.fill(HIST("Events/Efficiency"), 6.);
++moreThanOne;
atLeastOne = true;
Expand Down