[Sane-analysis] Minutes of October 06 Analysis Meeting

[Narbe Kalantarians]

_*James:*_ Looking at tracking with Bdl using physics angle corrections. 
Using Bdl from Oscar. Hovhannes  mentioned that this is significantly 
different from BdL obtained via GEANT. The physics theta appears to have 
a dependence on magnetic field, due to the phi being affected by the 
magnetic field. This is most prominent in the lower energies. Hovhannes 
will post his Bdl on the SANE wiki page.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Particle_Tracking_to_Front_Tracker%2C_Target#Tracking_with_Bdl.2C_both_theta_and_phi_corrections:_10.2F6.2F2010
Calculating perpendicular asymmetries using position cuts. Essentially 
divided BigCal in to 4 parts; RCS and Protvino, left and right. Jon will 
provide efficiency maps (theta vs. phi) for these runs/run-ranges to use 
for this.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Raw_Asymmetries#Asymmetries_with_Position_Cuts_in_Calorimeter:_10.2F6.2F2010


_*Hovhannes:*_ Following up from last week, looked some more at 
positrons binning in theta and fixing energy. The ratio of e+/e- seems 
to be fairly constant as function of energy. The net number of e+ 
increases with angle, but so does the electrons. Will discuss with Mark 
and Oscar.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Positron_contribution 


_*Jon:*_ Following up from last week, almost finished with 
cluster-energy resolution study, mentioned last week. The pion peak 
seems a little off. Hovhannes will help with applying angle corrections.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/JrmEResolution


_*Whit:*_ Using database, set up interface that provides diagnostic 
plots relevant to detectors for each run. This would provide a quick 
sanity check.
http://quarks.temple.edu/~whit/SANE/analysis_main/runbrowser.php


As always, please let me know if I missed anything or if I made any 
mistake(s).


Next meeting will be October 13 at 15:30. During next week's meeting the 
students who are giving talks at the DNP in November will provide 
outlines for their talks to go over.
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