message: add tpc chi2/ndf info inside RLightNucleus
diff: @@ -88,6 +88,7 @@ struct RLightNucleus {
  Double32_t dcaz; //[-2,2,10]
  Double32_t tofNsigma; //[-12.8,12.8,12]
  Double32_t tpcNsigma; //[-6.4,6.4,8]
  + Double32_t chi2tpc; //[0,10.16,8]
  char centrality;
  char trackingPID;
  unsigned char tpcPIDcls;
  @@ -398,6 +399,7 @@ template<class track_t> void AliAnalysisTaskNucleiYield::TrackLoop(track_t* trac
  fRecNucleus.dcaz = dca[1];
  fRecNucleus.tpcNsigma = GetTPCsigmas(track);
  fRecNucleus.tofNsigma = GetTOFsigmas(track);
  + fRecNucleus.chi2tpc = track->Chi2perNDF();
  fRecNucleus.centrality = fCentrality;
  fRecNucleus.tpcPIDcls = track->GetTPCsignalN();
  fRecNucleus.flag = 0;
  