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[ALICE3] Pass number of silicon hits to the track and store it. #15265

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Merged
njacazio merged 4 commits into from
Mar 6, 2026
+10 −6
Merged

[ALICE3] Pass number of silicon hits to the track and store it. #15265

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264aaa2
Pass number of silicon hits to the track and store it.
axti98 Mar 4, 2026
18a141b
Rename numHits to nHits in onTheFlyTracker.cxx
njacazio Mar 5, 2026
2478cfc
Rename nHits to nTrkHits for clarity
njacazio Mar 5, 2026
f7a12a5
Trigger Build
axti98 Mar 5, 2026
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16 changes: 10 additions & 6 deletions ALICE3/TableProducer/OTF/onTheFlyTracker.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -1525,14 +1525,16 @@ struct OnTheFlyTracker {
}

bool reconstructed = true;
int nTrkHits = 0;
if (enablePrimarySmearing && !fastPrimaryTrackerSettings.fastTrackPrimaries) {
reconstructed = mSmearer[icfg]->smearTrack(trackParCov, mcParticle.pdgCode(), dNdEta);
nTrkHits = fastTrackerSettings.minSiliconHits;
} else if (fastPrimaryTrackerSettings.fastTrackPrimaries) {
o2::track::TrackParCov o2Track;
o2::upgrade::convertMCParticleToO2Track(mcParticle, o2Track, pdgDB);
o2Track.setPID(pdgCodeToPID(mcParticle.pdgCode()));
const int nHits = fastTracker[icfg]->FastTrack(o2Track, trackParCov, dNdEta);
if (nHits < fastPrimaryTrackerSettings.minSiliconHits) {
nTrkHits = fastTracker[icfg]->FastTrack(o2Track, trackParCov, dNdEta);
if (nTrkHits < fastPrimaryTrackerSettings.minSiliconHits) {
reconstructed = false;
}
}
Expand Down Expand Up @@ -1567,7 +1569,7 @@ struct OnTheFlyTracker {

// populate vector with track if we reco-ed it
if (reconstructed) {
tracksAlice3.push_back(TrackAlice3{trackParCov, mcParticle.globalIndex(), time, timeResolutionUs, isDecayDaughter});
tracksAlice3.push_back(TrackAlice3{trackParCov, mcParticle.globalIndex(), time, timeResolutionUs, isDecayDaughter, false, 0, nTrkHits});
} else {
ghostTracksAlice3.push_back(TrackAlice3{trackParCov, mcParticle.globalIndex(), time, timeResolutionUs, isDecayDaughter});
}
Expand Down Expand Up @@ -1927,15 +1929,17 @@ struct OnTheFlyTracker {
const float time = (eventCollisionTimeNS + gRandom->Gaus(0., timeResolutionNs)) * nsToMus;

bool reconstructed = false;
int nTrkHits = 0;
if (enablePrimarySmearing && mcParticle.isPrimary()) {
o2::upgrade::convertMCParticleToO2Track(mcParticle, trackParCov, pdgDB);
reconstructed = mSmearer[icfg]->smearTrack(trackParCov, mcParticle.pdgCode(), dNdEta);
nTrkHits = fastTrackerSettings.minSiliconHits;
} else if (enableSecondarySmearing) {
o2::track::TrackParCov perfectTrackParCov;
o2::upgrade::convertMCParticleToO2Track(mcParticle, perfectTrackParCov, pdgDB);
perfectTrackParCov.setPID(pdgCodeToPID(mcParticle.pdgCode()));
const int nHits = fastTracker[icfg]->FastTrack(perfectTrackParCov, trackParCov, dNdEta);
if (nHits < fastTrackerSettings.minSiliconHits) {
nTrkHits = fastTracker[icfg]->FastTrack(perfectTrackParCov, trackParCov, dNdEta);
if (nTrkHits < fastTrackerSettings.minSiliconHits) {
reconstructed = false;
} else {
reconstructed = true;
Expand Down Expand Up @@ -1965,7 +1969,7 @@ struct OnTheFlyTracker {
}

if (reconstructed) {
tracksAlice3.push_back(TrackAlice3{trackParCov, mcParticle.globalIndex(), time, timeResolutionUs, isDecayDaughter});
tracksAlice3.push_back(TrackAlice3{trackParCov, mcParticle.globalIndex(), time, timeResolutionUs, isDecayDaughter, false, 0, nTrkHits});
} else {
ghostTracksAlice3.push_back(TrackAlice3{trackParCov, mcParticle.globalIndex(), time, timeResolutionUs, isDecayDaughter});
}
Expand Down
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