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[PWGCF] Fix bug in Nch calculation for event classification #16738

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Merged
shouqiye merged 1 commit into from
Jun 19, 2026
+10 −7
Merged

[PWGCF] Fix bug in Nch calculation for event classification #16738

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17 changes: 10 additions & 7 deletions PWGCF/TwoParticleCorrelations/TableProducer/longrangeMaker.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -397,8 +397,11 @@ struct LongrangeMaker {
ft0gainvalues.push_back(1.);
}
}
auto multiplicity = countNTracks(tracks, col.posZ());
auto centrality = selColCent(col);
float multiplicity = countNTracks(tracks, col.posZ());
float centrality = selColCent(col);
if (cfgfittrksel.cfgVerbosity > 0) {
LOGF(info, "Event multiplicity = %f | centrality = %f", multiplicity, centrality);
}
lrcollision(bc.runNumber(), col.posZ(), multiplicity, centrality, bc.timestamp());

// track loop
Expand Down Expand Up @@ -621,7 +624,7 @@ struct LongrangeMaker {

upchelpers::FITInfo fitInfo{};
udhelpers::getFITinfo(fitInfo, newbc, bcs, ft0s, fv0as, fdds);
auto multiplicity = countNTracks(tracks, col.posZ());
float multiplicity = countNTracks(tracks, col.posZ());
upclrcollision(bc.globalBC(), bc.runNumber(), col.posZ(), multiplicity, fitInfo.ampFT0A, fitInfo.ampFT0C, fitInfo.timeFV0A, bc.timestamp());
upcsglrcollision(issgevent);
if (newbc.has_zdc()) {
Expand Down Expand Up @@ -814,8 +817,8 @@ struct LongrangeMaker {
}
}
auto recTracksPart = RecTracks.sliceBy(perColMidtrack, RecCol.globalIndex());
auto multiplicity = countNTracks(recTracksPart, RecCol.posZ());
auto centrality = selColCent(RecCol);
float multiplicity = countNTracks(recTracksPart, RecCol.posZ());
float centrality = selColCent(RecCol);
lrcollision(bc.runNumber(), RecCol.posZ(), multiplicity, centrality, bc.timestamp());
lrcollisionMcLabel(RecCol.mcCollisionId());

Expand Down Expand Up @@ -1084,9 +1087,9 @@ struct LongrangeMaker {
}

template <typename countTrk>
int countNTracks(countTrk const& tracks, float vz)
float countNTracks(countTrk const& tracks, float vz)
{
auto nTrk = 0;
float nTrk = 0.f;
for (const auto& track : tracks) {
if (!track.isGlobalTrack())
continue;
Expand Down
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