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[PWGEM/Dilepton] fix TTCA weighting for global muons #14853

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Merged
dsekihat merged 1 commit into from
Feb 7, 2026
+9 −7
Merged

[PWGEM/Dilepton] fix TTCA weighting for global muons #14853

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3 changes: 1 addition & 2 deletions PWGEM/Dilepton/Core/Dilepton.h
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Original file line number Diff line number Diff line change
Expand Up @@ -895,8 +895,8 @@ struct Dilepton {
if (cfgApplyWeightTTCA) {
weight = map_weight[std::make_pair(t1.globalIndex(), t2.globalIndex())];
}
// LOGF(info, "ev_id = %d, t1.sign() = %d, t2.sign() = %d, map_weight[std::make_pair(%d, %d)] = %f", ev_id, t1.sign(), t2.sign(), t1.globalIndex(), t2.globalIndex(), weight);
}
// LOGF(info, "ev_id = %d, t1.sign() = %d, t2.sign() = %d, map_weight[std::make_pair(%d, %d)] = %f", ev_id, t1.sign(), t2.sign(), t1.globalIndex(), t2.globalIndex(), weight);

ROOT::Math::PtEtaPhiMVector v1(t1.pt(), t1.eta(), t1.phi(), leptonM1);
ROOT::Math::PtEtaPhiMVector v2(t2.pt(), t2.eta(), t2.phi(), leptonM2);
Expand Down Expand Up @@ -1527,7 +1527,6 @@ struct Dilepton {
for (const auto& pairId : passed_pairIds) {
auto t1 = tracks.rawIteratorAt(std::get<0>(pairId));
auto t2 = tracks.rawIteratorAt(std::get<1>(pairId));
// LOGF(info, "std::get<0>(pairId) = %d, std::get<1>(pairId) = %d, t1.globalIndex() = %d, t2.globalIndex() = %d", std::get<0>(pairId), std::get<1>(pairId), t1.globalIndex(), t2.globalIndex());

float n = 1.f; // include myself.
for (const auto& ambId1 : t1.ambiguousElectronsIds()) {
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13 changes: 8 additions & 5 deletions PWGEM/Dilepton/Utils/EMTrackUtilities.h
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Original file line number Diff line number Diff line change
Expand Up @@ -137,18 +137,21 @@ bool checkMFTHitMap(T const& track)
template <bool is_wo_acc = false, typename TTrack, typename TCut, typename TTracks>
bool isBestMatch(TTrack const& track, TCut const& cut, TTracks const& tracks)
{
// this is only for muon at forward rapidity
// this is only for global muons at forward rapidity
// Be careful! tracks are fwdtracks per DF.
if (track.trackType() == o2::aod::fwdtrack::ForwardTrackTypeEnum::GlobalMuonTrack) {
std::map<int64_t, float> map_chi2MCHMFT;
map_chi2MCHMFT[track.globalIndex()] = track.chi2MatchMCHMFT(); // add myself
for (const auto& glmuonId : track.globalMuonsWithSameMFTIds()) {
const auto& candidate = tracks.rawIteratorAt(glmuonId);
if (candidate.trackType() == o2::aod::fwdtrack::ForwardTrackTypeEnum::GlobalMuonTrack) {
if (cut.template IsSelectedTrack<is_wo_acc>(candidate)) {
map_chi2MCHMFT[candidate.globalIndex()] = candidate.chi2MatchMCHMFT();
if (track.mchtrackId() != candidate.mchtrackId() && track.mfttrackId() == candidate.mfttrackId()) {
if (candidate.trackType() == o2::aod::fwdtrack::ForwardTrackTypeEnum::GlobalMuonTrack) {
if (cut.template IsSelectedTrack<is_wo_acc>(candidate)) {
map_chi2MCHMFT[candidate.globalIndex()] = candidate.chi2MatchMCHMFT();
}
}
}
}
} // end of glmuonId

auto it = std::min_element(map_chi2MCHMFT.begin(), map_chi2MCHMFT.end(), [](decltype(map_chi2MCHMFT)::value_type& l, decltype(map_chi2MCHMFT)::value_type& r) -> bool { return l.second < r.second; }); // search for minimum matching-chi2

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