PixeldEdxTrackParticleThinning fixing
This quick/small MR fixes a rare issue of falling in FATAL
in the SUSY6
derivation production observed in the previous derivation during the EOY break, due to the presence of rare, very small pT tracks below 100 MeV in the track particle container.
Tagging @ljeanty, @passaggi, @rysawada, @mehlhase, @spagan, @martindl