Decay channel resolution studies

Distance to nearest chamber (inches). Events in DK4 and DK5 which pass 'NU_CANDIDATE' cuts are plotted. The spike is at -39.25" (peculiarly close to 1 meter) and is about 0.05" wide.

Same plot with spike surgically removed and a gaussian fit to the central peak. The RMS is similar but the tails are larger in the data.

Event displays of MC events in the spike (no noise).

Comparison of distance-to-chamber for MC with and without noise. The effect of noise is to remove about 10% of all events, irrespective of whether or not they're in the spike.

Eric D. Zimmerman (edz@fnal.gov)