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Please consider the following formatting changes to #14615 #74

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08b6f3c
add best knowldge of collision time in tof matching info
noferini Aug 25, 2025
99c3988
Please consider the following formatting changes
alibuild Aug 25, 2025
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13 changes: 12 additions & 1 deletion DataFormats/Reconstruction/include/ReconstructionDataFormats/MatchInfoTOF.h
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Original file line number Diff line number Diff line change
Expand Up @@ -86,6 +86,14 @@ class MatchInfoTOF
hasT0_1BCbefore = 0x1 << 8,
hasT0_2BCbefore = 0x1 << 9 };

void setFT0Best(double val, float res = 200.)
{
mFT0Best = val;
mFT0BestRes = res;
}
double getFT0Best() const { return mFT0Best; }
float getFT0BestRes() const { return mFT0BestRes; }

private:
int mIdLocal; // track id in sector of the pair track-TOFcluster
float mChi2; // chi2 of the pair track-TOFcluster
Expand All @@ -106,7 +114,10 @@ class MatchInfoTOF
float mTgeant = 0.0; ///< geant time in MC
double mT0true = 0.0; ///< t0true

ClassDefNV(MatchInfoTOF, 8);
double mFT0Best = 0.0; //< best info for collision time
float mFT0BestRes = 200.0; //< resolution (in ps) of the best info for collision time

ClassDefNV(MatchInfoTOF, 9);
};
} // namespace dataformats
} // namespace o2
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17 changes: 15 additions & 2 deletions Detectors/GlobalTracking/src/MatchTOF.cxx
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Expand Up @@ -1702,8 +1702,8 @@ void MatchTOF::BestMatches(std::vector<o2::dataformats::MatchInfoTOFReco>& match
matchingPair.setT0true(TOFClusWork[matchingPair.getTOFClIndex()].getT0true());

// let's check if cluster has multiple-hits (noferini)
if (TOFClusWork[matchingPair.getTOFClIndex()].getNumOfContributingChannels() > 1) {
const auto& tofcl = TOFClusWork[matchingPair.getTOFClIndex()];
const auto& tofcl = TOFClusWork[matchingPair.getTOFClIndex()];
if (tofcl.getNumOfContributingChannels() > 1) {
// has an additional hit Up or Down (Z-dir)
matchingPair.setHitPatternUpDown(tofcl.isAdditionalChannelSet(o2::tof::Cluster::kUp) ||
tofcl.isAdditionalChannelSet(o2::tof::Cluster::kUpLeft) ||
Expand All @@ -1719,6 +1719,19 @@ void MatchTOF::BestMatches(std::vector<o2::dataformats::MatchInfoTOFReco>& match
tofcl.isAdditionalChannelSet(o2::tof::Cluster::kDownRight) ||
tofcl.isAdditionalChannelSet(o2::tof::Cluster::kUpRight));
}

// estimate collision time using FT0 info if available
ULong64_t bclongtofCal = (matchingPair.getSignal() - 10000) * o2::tof::Geo::BC_TIME_INPS_INV;
double t0Best = bclongtofCal * o2::tof::Geo::BC_TIME_INPS; // here just BC
float t0BestRes = 200;
if (FITRecPoints.size() > 0) {
int index = findFITIndex(bclongtofCal, FITRecPoints, mFirstTForbit);
if (index > -1 && FITRecPoints[index].isValidTime(1) && FITRecPoints[index].isValidTime(2)) { // require A and C
t0Best += FITRecPoints[index].getCollisionTime(0);
t0BestRes = 15;
}
}
matchingPair.setFT0Best(t0Best, t0BestRes);
matchedTracks[trkTypeSplitted].push_back(matchingPair); // array of MatchInfoTOF

// get fit info
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6 changes: 3 additions & 3 deletions Detectors/GlobalTrackingWorkflow/src/tof-matcher-workflow.cxx
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Expand Up @@ -114,9 +114,9 @@ WorkflowSpec defineDataProcessing(ConfigContext const& configcontext)
}
}

if (!writecalib) {
useFIT = false;
}
// if (!writecalib) {
// useFIT = false;
// }

LOG(debug) << "TOF MATCHER WORKFLOW configuration";
LOG(debug) << "TOF track inputs = " << configcontext.options().get<std::string>("track-sources");
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