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[PWGLF] Add efficiency as a function of generated level centrality #16639

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Merged
dmallick2 merged 3 commits into from
Jun 12, 2026
+21 −1
Merged

[PWGLF] Add efficiency as a function of generated level centrality #16639

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5187ed3
Add efficiency as a function of generated level centrality
SuJeong-Ji Jun 12, 2026
5485297
Please consider the following formatting changes
alibuild Jun 12, 2026
8461103
Merge pull request #40 from alibuild/alibot-cleanup-16639
SuJeong-Ji Jun 12, 2026
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22 changes: 21 additions & 1 deletion PWGLF/Tasks/Resonances/chk892LI.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -444,6 +444,10 @@ struct Chk892LI {
histos.add("EffKstar/genKstar_pri", "Gen primary Kstar (|y|<0.5)", HistType::kTH2F, {ptAxis, centAxis});
histos.add("EffKstar/genKstar_pri_pos", "Gen primary Kstar selected by vertex position (|y|<0.5)", HistType::kTH2F, {ptAxis, centAxis});
histos.add("EffKstar/recoKstar", "Kstar Reco matched (final all)", HistType::kTH2F, {ptAxis, centAxis});
histos.add("EffKstar/recoKstar_vsGenMult", "Reco K* vs gen mid-rapidity multiplicity;#it{p}_{T};N_{ch}^{gen}", HistType::kTH2D, {ptAxis, genMultAxis});
histos.add("EffKstar/genKstar_vsGenMult", "Gen K* vs gen mid-rapidity multiplicity;#it{p}_{T};N_{ch}^{gen}", HistType::kTH2D, {ptAxis, genMultAxis});
histos.add("EffKstar/genKstar_pri_vsGenMult", "Gen primary Kstar (|y|<0.5) vs gen mid-rapidity multiplicity", HistType::kTH2D, {ptAxis, genMultAxis});
histos.add("EffKstar/genKstar_pri_pos_vsGenMult", "Gen primary Kstar selected by vertex position (|y|<0.5) vs gen mid-rapidity multiplicity", HistType::kTH2D, {ptAxis, genMultAxis});

histos.add("Correction/sigLoss_den", "Gen Kstar (|y|<0.5) in truth class", HistType::kTH2F, {ptAxis, centAxis});
histos.add("Correction/sigLoss_den_pri", "Gen primary Kstar (|y|<0.5) in truth class", HistType::kTH2F, {ptAxis, centAxis});
Expand Down Expand Up @@ -1084,10 +1088,18 @@ struct Chk892LI {

const float lCentrality = iter->second;

auto itGenMult = genMultByMcId.find(mcid);
if (itGenMult == genMultByMcId.end()) {
continue;
}
const int genMult = itGenMult->second;

histos.fill(HIST("EffKstar/genKstar"), part.pt(), lCentrality);
histos.fill(HIST("EffKstar/genKstar_vsGenMult"), part.pt(), genMult);

if (part.vt() == 0) {
histos.fill(HIST("EffKstar/genKstar_pri"), part.pt(), lCentrality);
histos.fill(HIST("EffKstar/genKstar_pri_vsGenMult"), part.pt(), genMult);
}

const auto mcc = part.mcCollision_as<MCTrueEventCandidates>();
Expand All @@ -1100,6 +1112,7 @@ struct Chk892LI {

if (distanceFromPV < fMaxPosPV) {
histos.fill(HIST("EffKstar/genKstar_pri_pos"), part.pt(), lCentrality);
histos.fill(HIST("EffKstar/genKstar_pri_pos_vsGenMult"), part.pt(), genMult);
}
}
} // effKstarProcessGen
Expand All @@ -1123,9 +1136,14 @@ struct Chk892LI {
if (iter == centTruthByAllowed.end()) {
continue;
}

const float lCentrality = iter->second;

auto itGenMult = genMultByMcId.find(mcid);
if (itGenMult == genMultByMcId.end()) {
continue;
}
const int genMult = itGenMult->second;

if (!SecondaryCuts.cfgByPassDauPIDSelection) {
auto posDauTrack = v0.template posTrack_as<MCTrackCandidates>();
auto negDauTrack = v0.template negTrack_as<MCTrackCandidates>();
Expand All @@ -1134,6 +1152,7 @@ struct Chk892LI {
if (!selectionPIDPion(negDauTrack))
continue;
}

if (!selectionK0s(coll, v0))
continue;

Expand Down Expand Up @@ -1163,6 +1182,7 @@ struct Chk892LI {

if (isTrue) {
histos.fill(HIST("EffKstar/recoKstar"), ptreco, lCentrality);
histos.fill(HIST("EffKstar/recoKstar_vsGenMult"), ptreco, genMult);
histos.fill(HIST("MCReco/hInvmass_Kstar_true"), lCentrality, ptreco, lResoKstar.M());
} else {
histos.fill(HIST("MCReco/hInvmass_Kstar_bkg"), lCentrality, ptreco, lResoKstar.M());
Expand Down
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