[G12] Minutes from 2/03/2010 meeting

[Craig Bookwalter]

Hi folks,
  Minutes from today's g12 meeting are online at:

  http://clasweb.jlab.org/rungroups/g12/wiki/index.php/03Feb10

and pasted below.


03Feb10
>From G12_wiki
[edit]
Agenda

    * Another plot checking tagger sag corrections
    * gflux progress
    * update on Diane's channel
    * some timing plots from Sasha S.

[edit]
Minutes

    * Craig, Diane, Mike P., Dennis, Carlos, William, Valery, Sasha S.,
Sasha O., Paul E., Mukesh
    * Craig shows the plot in the agenda checking the tagger sag
corrections--he will show it to Eugene as well and will further
examine this dip region, and also attempt to fit slices of the beam
energy with a gaussian and plot the means and sigmas.
    * Diane showed her gflux results to Eugene and he says that our ratios
are not as high as they ought to be. He believes there may be
significant contamination from other halls.
    * The rho is still the wrong mass in both p pi+ pi- and e+e-
    * Diane shows that in MC data, passing a t-slope of 3 into gsim
results in a slope of 2.3 for the a0 and 2.6 for the a2. There is
general discussion that in Diane's and Craig's channel we cannot
reproduce the t-slopes in data that are produced in Mina's analysis
note. Craig will pull some g6c data from the silo and fit it himself
for the a2 and see what's up.
    * Dennis wants Diane and Craig to try, for example, calcuating a 2++
M=1 amplitude and then weight the mass distribution by this amplitude
-- events with large 2++M=1 components should be enhanced. Might be an
interesting prelude to a full PWA.
    * Paul brings up the need to create wire efficiency maps for gpp.
Mukesh is going to talk to Lei about it.