[PWGHF] Fixes to B0 to D* workflow (#12734)

Co-authored-by: ALICE Action Bot <alibuild@cern.ch>

Author: Marcellocosti

PWGHF/D2H/TableProducer/dataCreatorCharmHadPiReduced.cxx

@@ -1241,7 +1241,7 @@ struct HfDataCreatorCharmHadPiReduced {
         trackParCov1.propagateTo(secondaryVertexCharm[0], bz);
         df2.getTrack(0).getPxPyPzGlo(pVec0);
         df2.getTrack(1).getPxPyPzGlo(pVec1);
-        pVecCharm = RecoDecay::pVec(pVec0, pVec1);
+        pVecCharm = RecoDecay::pVec(pVec0, pVec1, pVec2);
         trackParCovCharmHad = df2.createParentTrackParCov();
         trackParCovCharmHad.setAbsCharge(0); // to be sure
       }
@@ -1279,14 +1279,18 @@ struct HfDataCreatorCharmHadPiReduced {
         }
 
         // reject pi D with same sign as D
-        if constexpr (decChannel == DecayChannel::B0ToDminusPi || decChannel == DecayChannel::BsToDsminusPi || decChannel == DecayChannel::LbToLcplusPi || decChannel == DecayChannel::B0ToDstarPi) { // D∓ → π∓ K± π∓ and Ds∓ → K∓ K± π∓ and Lc∓ → p∓ K± π∓ and D*+ → D0 π+
+        if constexpr (decChannel == DecayChannel::B0ToDminusPi || decChannel == DecayChannel::BsToDsminusPi || decChannel == DecayChannel::LbToLcplusPi) { // D∓ → π∓ K± π∓ and Ds∓ → K∓ K± π∓ and Lc∓ → p∓ K± π∓
           if (trackPion.sign() * charmHadDauTracks[0].sign() > 0) {
             continue;
           }
         } else if constexpr (decChannel == DecayChannel::BplusToD0barPi) { // D0(bar) → K± π∓
           if (!((candC.isSelD0() >= hfflagConfigurations.selectionFlagD0 && trackPion.sign() < 0) || (candC.isSelD0bar() >= hfflagConfigurations.selectionFlagD0bar && trackPion.sign() > 0))) {
             continue;
           }
+        } else if constexpr (decChannel == DecayChannel::B0ToDstarPi) { // D*+ → D0 π+
+          if (trackPion.sign() * charmHadDauTracks.back().sign() > 0) {
+            continue;
+          }
         }
 
         // apply selections on pion tracks

PWGHF/D2H/Tasks/taskB0Reduced.cxx

@@ -616,7 +616,7 @@ struct HfTaskB0Reduced {
           candidate.decayLengthXY(),
           candidate.decayLengthNormalised(),
           candidate.decayLengthXYNormalised(),
-          candidate.impactParameterProngSqSum(),
+          candidate.impactParameterProduct(),
           candidate.maxNormalisedDeltaIP(),
           candidateMlScoreSig,
           candidate.isSelB0ToDPi(),
@@ -644,12 +644,12 @@ struct HfTaskB0Reduced {
           prong0MlScorePrompt,
           prong0MlScoreNonprompt,
           // pion features
-          candidate.ptProng1(),
+          candidate.ptProng2(),
           std::abs(RecoDecay::eta(prongBachPi.pVector())),
           prongBachPi.itsNCls(),
           prongBachPi.tpcNClsCrossedRows(),
           prongBachPi.tpcChi2NCl(),
-          candidate.impactParameter1(),
+          candidate.impactParameter2(),
           prongBachPi.tpcNSigmaPi(),
           prongBachPi.tofNSigmaPi(),
           prongBachPi.tpcTofNSigmaPi(),

PWGHF/DataModel/CandidateReconstructionTables.h

@@ -2257,7 +2257,8 @@ DECLARE_SOA_TABLE(HfCandB0Base, "AOD", "HFCANDB0BASE",
 DECLARE_SOA_TABLE(HfCandB0DStar, "AOD", "HFCANDB0DSTAR",
                   // general columns
                   HFCAND_COLUMNS,
-                  /* prong 2 */ hf_cand::ImpactParameterNormalised2<hf_cand::ImpactParameter2, hf_cand::ErrorImpactParameter2>,
+                  /* prong 2 */
+                  hf_cand::ImpactParameterNormalised2<hf_cand::ImpactParameter2, hf_cand::ErrorImpactParameter2>,
                   hf_cand::PtProng2<hf_cand::PxProng2, hf_cand::PyProng2>,
                   hf_cand::Pt2Prong2<hf_cand::PxProng2, hf_cand::PyProng2>,
                   hf_cand::PVectorProng2<hf_cand::PxProng2, hf_cand::PyProng2, hf_cand::PzProng2>,
@@ -2270,6 +2271,7 @@ DECLARE_SOA_TABLE(HfCandB0DStar, "AOD", "HFCANDB0DSTAR",
                   /* dynamic columns */
                   hf_cand_3prong::M<hf_cand::PxProng0, hf_cand::PyProng0, hf_cand::PzProng0, hf_cand::PxProng1, hf_cand::PyProng1, hf_cand::PzProng1, hf_cand::PxProng2, hf_cand::PyProng2, hf_cand::PzProng2>,
                   hf_cand_3prong::M2<hf_cand::PxProng0, hf_cand::PyProng0, hf_cand::PzProng0, hf_cand::PxProng1, hf_cand::PyProng1, hf_cand::PzProng1, hf_cand::PxProng2, hf_cand::PyProng2, hf_cand::PzProng2>,
+                  hf_cand_2prong::ImpactParameterProduct<hf_cand::ImpactParameter0, hf_cand::ImpactParameter2>,
                   hf_cand_3prong::ImpactParameterProngSqSum<hf_cand::ImpactParameter0, hf_cand::ImpactParameter1, hf_cand::ImpactParameter2>,
                   /* dynamic columns that use candidate momentum components */
                   hf_cand::Pt<hf_cand_3prong::Px, hf_cand_3prong::Py>,