[Halld-offline] Reconstruction Uncertainties

[Paul Mattione]

I would like to update the current reconstruction uncertainties to improve the particle-ID algorithms and support the kinematic fitting analyses.  Right now the tracking uncertainties are yielding dubious chi-squares and the kinematic fitting results have too many events with low confidence levels.  Also, the timing uncertainties used for calculating the particle-id FOM are one-size-fits-all numbers, instead of incorporating any momentum or energy dependence.  

I would like to fix these problems with the reconstruction uncertainties, and do so in a framework that can be used for experimental running.  That way we will get a better understanding of the eventual experimental reconstruction uncertainties, and we won't need to rewrite the framework later.

The link below details the current status of the reconstruction uncertainties and a proposal to determine the measurement uncertainties during offline detector calibrations.  I would like to hear people's thoughts about this during the offline meeting tomorrow, so please take a look at the link and let me know what you think.  Thanks!  

http://www.jlab.org/Hall-D/software/wiki/index.php/Mattione_Reconstruction_Uncertainties

 - Paul