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[PWGUD] UpcCandGlobalMuons fix - adding forgotten propagation function call #15480

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Merged
rolavick merged 1 commit into from
Mar 22, 2026
+15 −1
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[PWGUD] UpcCandGlobalMuons fix - adding forgotten propagation function call #15480

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16 changes: 15 additions & 1 deletion PWGUD/TableProducer/upcCandProducerGlobalMuon.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -379,7 +379,21 @@ struct UpcCandProducerGlobalMuon {
}

if (fUpcCuts.getUseFwdCuts()) {
auto pft = propagateToZero(track);
bool isGlobal = track.trackType() == o2::aod::fwdtrack::ForwardTrackTypeEnum::GlobalMuonTrack ||
track.trackType() == o2::aod::fwdtrack::ForwardTrackTypeEnum::GlobalForwardTrack;
o2::dataformats::GlobalFwdTrack pft;
if (isGlobal && fEnableMFT) {
// For global tracks, use MFT helix propagation to vertex instead of
// MCH extrapolation, which fails because the track z is upstream of
// the front absorber (z ~ -60 cm vs absorber at z ~ -90 cm)
o2::track::TrackParCovFwd trackPar = o2::aod::fwdtrackutils::getTrackParCovFwdShift(track, fZShift);
trackPar.propagateToZhelix(0., fBz);
pft.setParameters(trackPar.getParameters());
pft.setZ(trackPar.getZ());
pft.setCovariances(trackPar.getCovariances());
} else {
pft = propagateToZero(track);
}
bool pass = cut(pft, track);
if (!pass)
return false;
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