Ideas for Physics Projects (Fall 2011)

Ideas for Physics Projects:

(1) Goodness of fit in PWA

 -- How does one evaluate a goodness of fit in a partial wave analysis?
 -- Performing studies using GlueX MC would prepare us for this question when it arises during data analysis.
 -- This paper by Mike Williams is a good starting point:
      http://arxiv.org/abs/1006.3019

(2) Beam polarization and PWA

 -- How much analyzing power can we gain with precise polarization measurements?
 -- Are there physics channels that rely heavily on polarization?
 -- How do we incorporate the polarization uncertainty into the fits?
 -- Jake has done studies with 0 to 100% polarization in 3pi.  
       This could be a place to start since the amplitudes are already written.

(3) PWA with multiple tagger hits

 -- How do we handle multiple tagger hits when doing a PWA?  Do we use a weighting scheme?
 -- Richard has some experience with this.  Perhaps Igor could incorporate studies like this into his b1pi analysis?

(4) MC event generators

 -- Do we need more development work on MC event generators?
 -- IUAmpTools does importance sampling on generated mass distributions -- could this be extended?
 -- Does pythia need any more tuning?
 -- etc.

(5) PWA using backgrounds generated with realistic amplitudes

 -- We have so far only studied backgrounds using Pythia, which is tuned by cross section, 
      but doesn't include realistic amplitudes.  How would more realistic background processes, 
      generated at the amplitude level, affect a PWA?