message: Fix impact parameters preselection
diff: @@ -107,6 +107,8 @@ std::vector<AliESDv0> AliVertexerHyperTriton2Body::Tracks2V0vertices(AliESDEvent
  AliESDtrack *ntrk = event->GetTrack(nidx);
  if (!ntrk)
  continue;
  + float ndcaxy,ndcaz;
  + ntrk->GetImpactParameters(ndcaxy,ndcaz);
  for (auto &pidx : tracks[0][index > 0 ? 0 : 1])
  {
  AliESDtrack *ptrk = event->GetTrack(pidx);
  @@ -116,8 +118,9 @@ std::vector<AliESDv0> AliVertexerHyperTriton2Body::Tracks2V0vertices(AliESDEvent
  Double_t lNegMassForTracking = ntrk->GetMassForTracking();
  Double_t lPosMassForTracking = ptrk->GetMassForTracking();
  - if (TMath::Abs(ntrk->GetD(fPrimaryVertexX, fPrimaryVertexY, fMagneticField)) < fV0VertexerSels[1])
  - if (TMath::Abs(ptrk->GetD(fPrimaryVertexX, fPrimaryVertexY, fMagneticField)) < fV0VertexerSels[2])
  + float pdcaxy,pdcaz;
  + ptrk->GetImpactParameters(pdcaxy,pdcaz);
  + if (ndcaxy < fV0VertexerSels[1] && pdcaxy < fV0VertexerSels[2])
  continue;
  AliExternalTrackParam nt(*ntrk), pt(*ptrk);
  