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V0: use collinear fit from DCAFitter#5204

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Merged
fmazzasc merged 4 commits into from
Apr 5, 2024
Merged

V0: use collinear fit from DCAFitter #5204

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add0601
V0: use collinear fit from DCAFitter
f3sch Mar 16, 2024
6799384
LF: Add <vector> include to strangenesstable
f3sch Mar 17, 2024
28ecd4c
V0: Add switch to force all V0s to use the collinear Fit
f3sch Mar 18, 2024
e99cee2
restart CI
f3sch Mar 21, 2024
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5 changes: 4 additions & 1 deletion PWGLF/DataModel/LFStrangenessTables.h
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Expand Up@@ -12,6 +12,7 @@
#define PWGLF_DATAMODEL_LFSTRANGENESSTABLES_H_

#include <cmath>
#include <vector>
#include "Framework/AnalysisDataModel.h"
#include "Common/Core/RecoDecay.h"
#include "CommonConstants/PhysicsConstants.h"
Expand DownExpand Up@@ -390,8 +391,10 @@ DECLARE_SOA_DYNAMIC_COLUMN(PositivePhi, positivephi, //! positive daughter phi

DECLARE_SOA_DYNAMIC_COLUMN(IsStandardV0, isStandardV0, //! is standard V0
[](uint8_t V0Type) -> bool { return V0Type & (1 << 0); });
DECLARE_SOA_DYNAMIC_COLUMN(IsPhotonTPConly, isPhotonTPConly, //! is photon V0
DECLARE_SOA_DYNAMIC_COLUMN(IsPhotonTPConly, isPhotonTPConly, //! is tpc-only photon V0
[](uint8_t V0Type) -> bool { return V0Type & (1 << 1); });
DECLARE_SOA_DYNAMIC_COLUMN(IsCollinear, isCollinear, //! is collinear V0
[](uint8_t V0Type) -> bool { return V0Type & (1 << 2); });
} // namespace v0data

DECLARE_SOA_TABLE(V0Indices, "AOD", "V0INDEX", //! index table when using AO2Ds
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2 changes: 2 additions & 0 deletions PWGLF/TableProducer/lambdakzerobuilder.cxx
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Expand Up@@ -136,6 +136,7 @@ struct lambdakzeroBuilder {
Configurable<double> d_bz_input{"d_bz", -999, "bz field, -999 is automatic"};
Configurable<bool> d_UseAbsDCA{"d_UseAbsDCA", true, "Use Abs DCAs"};
Configurable<bool> d_UseWeightedPCA{"d_UseWeightedPCA", false, "Vertices use cov matrices"};
Configurable<bool> d_UseCollinearFit{"d_UseCollinearFit", false, "Fit V0s via the collinear Method in DCAFitter"};
Configurable<float> d_maxDZIni{"d_maxDZIni", 1e9, "Dont consider a seed (circles intersection) if Z distance exceeds this"};
Configurable<float> d_maxDXYIni{"d_maxDXYIni", 4, "Dont consider a seed (circles intersection) if XY distance exceeds this"};
Configurable<int> useMatCorrType{"useMatCorrType", 2, "0: none, 1: TGeo, 2: LUT"};
Expand DownExpand Up@@ -664,6 +665,7 @@ struct lambdakzeroBuilder {
//---/---/---/
// Move close to minima
int nCand = 0;
fitter.setCollinear(d_UseCollinearFit || V0.isCollinearV0());
try {
nCand = fitter.process(lPositiveTrack, lNegativeTrack);
} catch (...) {
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