[Sane-analysis] Minutes of May 26 Analysis Meeting

[Narbe Kalantarians]

_*Narbe:*_ Looking at plots of E' and (polar)Theta -both reconstructed- 
from GEANT-MC to get idea of binning for radiative corrections
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/SANE_GEANT#05.2F26.2F2010

Will plot (azimuthal)Phi vs. (polar)Theta in bins of E' as well as plots 
of W in bins of Q2


_*Jon:*_ Supervising an undergrad student to look at diagnostic 
histograms for quality checking replay of data set. Will try to have the 
undergrad prepare a data-base after finishing.


_*Hovhannes:*_ Looking at calibrated Q2 vs. x_clust vs. y_clust to 
isolate still problematic blocks in BigCal for corrections. It is from 
these problematic blocks that very large values of Q2 seem to be 
originating and causing negative W2 values. A significant part of these 
are from the edges and are consequential of edge-effects.


_*Oscar:*_ Looking at pi0 mass in cluster energy (E_clust) bins to check 
systematics and stability of calibrations. Sees a slight shift/trend of 
pi0 mass peak (~16MeV over ~1.3GeV) when he varies E_clust. Did this for 
one run (70341). 
http://www.jlab.org/~rondon/sane/analysis/replay/pi0/pi0-eclus.gif
http://www.jlab.org/~rondon/sane/analysis/replay/pi0/pi0_mass-eclus_sum.gif
It will be useful to do this for many runs to cover the data thoroughly. 
It would also be useful to do this with the MC.


As always, please let me know if I missed something or mentioned it 
incorrectly.

Next meeting will be on June 2nd.
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