message: sorry for not noticing the bug
diff: #include <string.h>
  #include "AliNanoAODTrack.h"
  #include "TDatabasePDG.h"
  +#include "TVector3.h"
  // #include <chrono>
  using std::cout;
  @@ -1069,7 +1070,7 @@ void AliAnalysisTaskPOmegaPenne::UserExec(Option_t *)
  h2_CPA_pt_invMass[21]->Fill(vAntiLambda[i].GetPt(), CalculateInvMassLambda(vAntiLambda[i], true));
  for (size_t j = i + 1; j < vAntiLambda.size(); j++)
  {
  - h2_CPA_pt_invMass[29]->Fill(CalculateInvMassLambda(vAntiLambda[i], true, CalculateInvMassLambda(vAntiLambda[i], true));
  + h2_CPA_pt_invMass[29]->Fill(CalculateInvMassLambda(vAntiLambda[i], true), RelativePairMomentum(vAntiLambda[i], 3122, vAntiLambda[j], 3122));
  }
  }
  vAntiLambda[i].SetUse(true);
  