Energy distributions from photons resulting from pi0 decays

1. These plots were generated using the pi0 on Pb208 generator in psim. Only the "thrown" values were examined. These were values in the MCPART bank with state=3 (i.e. final state particles)
2. The photon was defined as hitting PbGlass if it was projected to be at a cardinal distance of less than 17*2.05cm + 6*3.84cm and greater than 17*2.05cm from the beamline in either x or y
3. The photon was defined as hitting the PbWO4 if it was projected to be at a cardinal distance of less than 17*2.05cm from the beamline in either x or y. Not cut was made for the beam hole. This enhances the highest energy part (>4.5GeV) of the PbWO4 spectrum.
4. The data contains all pi0 production channels (i.e. primakoff, nuclear coherent, interference)
5. The plots of the photon energy in lead glass and PbWO4 both have a cut on both photons being inside of the fiducial volume of HYCAL. There is no cut on the photon energies.