An update of the studies from the Dec 13th, 2011, blog "Mass Spectrum of Converted Gamma."  See that blog for details.  Plots as presented before are shown for the TSP algorithm.

Plots

Conclusions

Although the total number of pairs is much lower in the TSP method than the IU and ANLS methods, the low mass peak is hardly discernable.  The converted photons due indeed have a peak-like shape, that with a average position and width that both increase with pT.  Preforming fits as was done for the other methods, yields parameters