This is a quick study to see if the nominal BEMC geometry shows any of the nonlinear behavior exhibited in EEMC simulations.

Single photons of 3 GeV, 10 GeV, and 50 GeV were thrown at the center of BEMC towers with reconstructed energy taken to be the sum of GEANT energy depositions.  Note that this may include energy depositions outside of the targeted tower.  The sampling fraction was then taken to be the reconstructed energy divided by the thrown energy.  y2009 geometry was used with the nominal GEANT 3.21 tune.

Red points are  the average of 10,000 single photon events (with the error bars corresponding to the RMS).  The black line is the result of a quadratic fit, with the fit parameters given in the text box.  The blue line is the nominal sampling fraction used in the BEMC slow simulator.