The task of finding an ad-hoc mass correction method for the Muon was split between grad student Leah Reiger-Welty and me. I used J/psi decays for my analysis while Leah used Kaons.
| Date | Summer 2004 |
|---|---|
| Primary Goals | To provide an ad-hoc method of correcting the measured Muon masses |
| Software | gcc, emacs, root, BANA |
| Hardware | N/A |
In 2004 every mass that DØ measures was inconsistent with its Particle Data Group value. This rather serious error was due to the manner in which the computer code reconstructed events from the observation data. Specifically, both the B-field and the amount of physical material (through which most particles travel) modeled in the computer code did not exactly match those that existed in the real detector. Since much data had already been processed with this model, my job was to help formulate an ad hoc manner of correcting the mass values of all detected particles.
At the end of the summer Leah took the progress I had made with J/psi decays and combined it with her results. She then wrote a scrip to perform the ad-hoc mass correction which, to my knowledge, is still used by DØ to date.