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Add Edep filtering to the helix filter #2055

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Merged
oksuzian merged 1 commit into from
Oct 22, 2026
Merged

Add Edep filtering to the helix filter #2055

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12 changes: 11 additions & 1 deletion TrkFilters/src/HelixFilter_module.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,8 @@ namespace mu2e
fhicl::OptionalAtom<double> minAbsLambda { Name("minAbsLambda"), Comment("minAbsLambda ") };
fhicl::OptionalAtom<double> maxNLoops { Name("maxNLoops"), Comment("maxNLoops ") };
fhicl::OptionalAtom<double> minNLoops { Name("minNLoops"), Comment("minNLoops ") };
fhicl::OptionalAtom<double> minEDepAvg { Name("minEDepAvg"), Comment("Minimum mean straw hit energy deposit (MeV)")};
fhicl::OptionalAtom<double> maxEDepAvg { Name("maxEDepAvg"), Comment("Maximum mean straw hit energy deposit (MeV)")};
fhicl::OptionalAtom<double> slopeSigMin { Name("slopeSigMin"), Comment("Minimum helix seed slope significance selection")};
fhicl::OptionalAtom<double> slopeSigMax { Name("slopeSigMax"), Comment("Maximum helix seed slope significance selection")};
fhicl::Sequence<std::string> helixFitFlag { Name("helixFitFlag"), Comment("helixFitFlag "), std::vector<std::string>{"HelixOK"} };
Expand Down Expand Up @@ -86,6 +88,8 @@ namespace mu2e
config.minAbsLambda(_minlambda);
config.maxNLoops(_maxnloops);
config.minNLoops(_minnloops);
config.minEDepAvg(_minedep);
config.maxEDepAvg(_maxedep);
_useSlopeSigMin = config.slopeSigMin(_slopeSigMin);
_useSlopeSigMax = config.slopeSigMax(_slopeSigMax);
}
Expand Down Expand Up @@ -130,12 +134,14 @@ namespace mu2e
const float slope = Helix.recoDir().slope();
const float slopeErr = std::fabs(Helix.recoDir().slopeErr());
const float slopeSignedSig = (slopeErr > 0.f) ? slope/slopeErr : 0.f; //signifance from 0 signed by the slope direction
const float edep = Helix.hits().eDepAvg(); // straw hit weighted, as AgnosticHelixFinder maxEDepAvg

if(Debug > 2){
std::cout << "[HelixFilter] : status = " << Helix.status() << " nhits = " << nstrawhits << " mom = " << hmom << std::endl
<< "[HelixFilter] : chi2XY = " << chi2XY << " chi2ZPHI = " << chi2PhiZ << " d0 = " << d0 << " lambda = "<< lambda
<< " p = " << hmom << " pT = " << hpT
<< " nLoops = " << nLoops << " hRatio = "<< hRatio << " slopeSignedSig = " << slopeSignedSig << std::endl;
<< " nLoops = " << nLoops << " hRatio = "<< hRatio << " slopeSignedSig = " << slopeSignedSig
<< " eDepAvg = " << edep << std::endl;
}
if( Helix.status().hasAllProperties(_goodh) &&
(!_hascc || Helix.caloCluster().isNonnull()) &&
Expand All @@ -151,6 +157,8 @@ namespace mu2e
nLoops >= _minnloops &&
hmom >= _minmom &&
hmom <= _maxmom &&
edep >= _minedep &&
edep <= _maxedep &&
(!_useSlopeSigMin || slopeSignedSig > _slopeSigMin) &&
(!_useSlopeSigMax || slopeSignedSig < _slopeSigMax) &&
hRatio >= _minHitRatio ) {
Expand Down Expand Up @@ -185,6 +193,8 @@ namespace mu2e
double _minlambda = 0.; // the cut is applied to |lambda|
double _maxnloops = std::numeric_limits<double>::max();
double _minnloops = 0.;
double _minedep = std::numeric_limits<double>::lowest();
double _maxedep = std::numeric_limits<double>::max();
bool _useSlopeSigMin = false;
double _slopeSigMin = 0.;
bool _useSlopeSigMax = false;
Expand Down