Average Partonic Pt Carried by Charged Pions

Here's a fragmentation study looking at the ratio of reconstructed charged pion p_{T} and the event partonic p_{T} in PYTHIA.  Cuts are

  • fabs(mcVertexZ()) < 60
  • fabs(vertexZ()) < 60
  • geantId() == 8 or 9 (charged pions)
  • fabs(etaPr()) < 1
  • fabs(dcaGl()) < 1
  • fitPts() > 25

fragmentation_parton_reco

Error bars are just the errors on the mean partonic p_{T} in each reconstructed pion p_{T} bin.  Next step is to look at the jet simulations to come up with a plot that is more directly comparable to a real data measurement.