Re: Meeting Wed 13 9:00

["D. P. Weygand" <weygand@jlab.org>]

 It is unlikely that I will be here Wednesday,so here is a 
brief summary of the status of the PWA:

Recall that Paul is preparing to do a fit on a single wave-

1) Paul took my beam density-matrix program today and got it working on
his data,
and he has generated the appropriate files.
2) John and I have modified the code to incorporate an event-by-event
beam density-matrix in the likelihood calculation.
3) I am working on a program to generate the input file for the fit...
it is not complete at this moment- it does the event loop part but not
the normalization integral part. Should be in a day or 2.
4) While studying the formalism last week at BNL, John and I discovered
that we have failed to account for a beam density-matrix in the
calculation of the normalization integral.  We have a kludge, but we
suspect that there is a theorem that we need to derive to make this
easier. But right now we have a valid, albeit complicated, solution.

We hope to be doing fits in a day or 2 or 3.


--

Regards,

D. P. Weygand
Thomas Jefferson National Accelerator Facility
Phone:	(757) 269-5926
FAX: 	(757) 269-5800
weygand@jlab.org
http://www.sura.org/~weygand