[PWGHF] Add normalized decay length to Omegac0 DCAFitter ML inputs (#18576)

Author: mtorresc15

PWGHF/Core/HfMlResponseOmegacToOmegaPiQa.h

@@ -70,6 +70,7 @@ enum class InputFeaturesOmegacToOmegaPi : uint8_t {
   impactParCascZ,
   cosPACharmBaryon,
   cosPACasc,
+  normDecayLenCharmBar,
 
   // KFParticle variables
   cosPaOmegacToPv,
@@ -136,6 +137,7 @@ class HfMlResponseOmegacToOmegaPi : public HfMlResponse<TypeOutputScore>
           CHECK_AND_FILL_VEC_OMEGAC0(impactParCascZ);
           CHECK_AND_FILL_VEC_OMEGAC0(cosPACharmBaryon);
           CHECK_AND_FILL_VEC_OMEGAC0(cosPACasc);
+          CHECK_AND_FILL_VEC_OMEGAC0(normDecayLenCharmBar);
         }
       }
 
@@ -192,7 +194,8 @@ class HfMlResponseOmegacToOmegaPi : public HfMlResponse<TypeOutputScore>
         FILL_MAP_OMEGAC0(impactParCascXY),
         FILL_MAP_OMEGAC0(impactParCascZ),
         FILL_MAP_OMEGAC0(cosPACharmBaryon),
-        FILL_MAP_OMEGAC0(cosPACasc)};
+        FILL_MAP_OMEGAC0(cosPACasc),
+        FILL_MAP_OMEGAC0(normDecayLenCharmBar)};
 
       MlResponse<TypeOutputScore>::mAvailableInputFeatures.insert(mapDcaFeatures.begin(), mapDcaFeatures.end());
     }

PWGHF/DataModel/CandidateReconstructionTables.h

@@ -1222,6 +1222,9 @@ DECLARE_SOA_DYNAMIC_COLUMN(PtPiFromCharmBaryon, ptPiFromCharmBaryon,
 DECLARE_SOA_DYNAMIC_COLUMN(PtKaFromCasc, ptKaFromCasc,
                            [](float px, float py) -> float { return RecoDecay::pt(px, py); });
 
+DECLARE_SOA_DYNAMIC_COLUMN(NormDecayLenCharmBar, normDecayLenCharmBar,
+                           [](float decLen, float errDecLen) -> float { return decLen / errDecLen; });
+
 } // end of namespace hf_cand_xic0_omegac0
 
 // declare dedicated Omegac and Xic to Xi Pi candidate table
@@ -1288,7 +1291,8 @@ DECLARE_SOA_TABLE(HfCandToOmegaPi, "AOD", "HFCANDTOOMEGAPI",
                   hf_cand_xic0_omegac0::DcaXYToPvV0Dau0, hf_cand_xic0_omegac0::DcaXYToPvV0Dau1, hf_cand_xic0_omegac0::DcaXYToPvCascDau,
                   hf_cand_xic0_omegac0::DcaZToPvV0Dau0, hf_cand_xic0_omegac0::DcaZToPvV0Dau1, hf_cand_xic0_omegac0::DcaZToPvCascDau,
                   hf_cand_xic0_omegac0::DcaCascDau, hf_cand_xic0_omegac0::DcaV0Dau, hf_cand_xic0_omegac0::DcaCharmBaryonDau,
-                  hf_cand_xic0_omegac0::DecLenCharmBaryon, hf_cand_xic0_omegac0::DecLenCascade, hf_cand_xic0_omegac0::DecLenV0, hf_cand_xic0_omegac0::ErrorDecayLengthCharmBaryon, hf_cand_xic0_omegac0::ErrorDecayLengthXYCharmBaryon, hf_track_index::HFflag);
+                  hf_cand_xic0_omegac0::DecLenCharmBaryon, hf_cand_xic0_omegac0::DecLenCascade, hf_cand_xic0_omegac0::DecLenV0, hf_cand_xic0_omegac0::ErrorDecayLengthCharmBaryon, hf_cand_xic0_omegac0::ErrorDecayLengthXYCharmBaryon, hf_track_index::HFflag,
+                  hf_cand_xic0_omegac0::NormDecayLenCharmBar<hf_cand_xic0_omegac0::DecLenCharmBaryon, hf_cand_xic0_omegac0::ErrorDecayLengthCharmBaryon>);
 
 DECLARE_SOA_TABLE(HfCandToOmegaK, "AOD", "HFCANDTOOMEGAK",
                   o2::soa::Index<>,

PWGHF/TableProducer/treeCreatorOmegac0ToOmegaPiQa.cxx

@@ -377,7 +377,7 @@ struct HfTreeCreatorToOmegaPiQa {
                    candidate.errorDecayLengthCharmBaryon(),
                    candidate.impactParCascXY() / candidate.errImpactParCascXY(),
                    candidate.impactParBachFromCharmBaryonXY() / candidate.errImpactParBachFromCharmBaryonXY(),
-                   candidate.decLenCharmBaryon() / candidate.errorDecayLengthCharmBaryon(),
+                   candidate.normDecayLenCharmBar(),
                    candidate.template bachelorFromCharmBaryon_as<MyTrackTable>().isGlobalTrackWoDCA(),
                    candidate.template bachelorFromCharmBaryon_as<MyTrackTable>().itsNCls(),
                    candidate.template bachelorFromCharmBaryon_as<MyTrackTable>().tpcNClsCrossedRows(),