Here are the latest results from my student Dasuni.  The files labeled 
'sig' are the cross sections and A_LT from the data.  The files labelled 
'sim' are the same for the simulation.  We are trying to find out why 
there are  discontinuities in the fits at the exact same locations for 
data and simulation.  We suspect that there is a problem in the phase 
space histogram, perhaps due to binning.

We did a fit of A + B cos(phi) for each missing momentum. The top plots 
show  A vs p_miss, the middle show B, and the bottom show B/A which 
should  be just A_LT.

Please let me know how these compare to your work.

Note that we are not using reduced cross sections, nor are we binning or 
cutting in Q^2 and omega.