FCAL Reconstruction in b1pi events 03/06/2012

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Thrown photons:

PhotonEvsTheta thrown FCAL Feb12.png

Reconstructed photons

PhotonEvsTheta recon FCAL Feb12.png

Questions:

  • Why are so many "photons" reconstructed? How can we reduce this?
  • What is the actual reconstruction efficiency?
  • How many photons reach the FCAL without converting?
    • Efficiency for non-converting photons?
    • Can we recover converted photons?
  • Energy resolution, etc.
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