Status Update: Fake Pi0 Reconstruction

  • First we suspected it is due to proton hits
  • I did some tests on Cluster History at different stages of reconstruction
    • Before Everything
    • Before Muon
    • Before Michel
    • Before Proton
    • Before Pi0 Reconstruction
    • etc…
  • Find out that Pi0 Reconstruction DOES NOT touch proton prongs.
    • This is good. We are not having extra hits from proton/pion hits
    • However, this means that our first assumption is wrong! There is some other problem!
  • Prof. Mann and I decided that the best way to figure out what is going on is a scanning session of two sample of events
    • Signal with FAILED Reconstruction
    • Background with SUCCESSFUL Reconstruction