[Sane-analysis] Minutes of August 31 Analysis Meeting

[Narbe Kalantarians]

_*Hovhannes:*_ Looking at asymmetry extraction where the azimuthal-phi 
dependence would be canceled. Comparing asymmetries with proposed method 
(blue points) with method being used now (red points).
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Asymmetry_extraction
The 3rd panel for the 5.9 GeV plots is for E' of 1.6-2.1 [GeV]

Looking at dilution factors with E' bins/ranges used for his 
asymmetries. Seems to see a dependence on E' range
https://hallcweb.jlab.org/experiments/sane/bhovik/DilutionFactors/


_*Anusha:*_ Update on azimuthal correction. Using an iterative method, 
on single-arm data. Gets reasonable results.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Azimuthal_Angle_Correction_for_target_mag._field#Update_Azimuthal_angle_corrections_08.2F31.2F2011
Will apply to coincidence data. Passing along correction to Hoyoung so 
he can look at packing fractions.


_*Narbe:*_ Update on GEANT for dilution factors. Corrected LHe so that 
it is now both in the target cup as well as the outer edges (+/- 0.5 
cm). Aluminum windows added. Had a mistake in throwing over the 
acceptance (got it corrected 09/01/11).
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Kinematics#08.2F31.2F2011
Will run some statistics to look at dilution factors.


_*Luwani:*_ Looking at pi0 asymmetries with the new Replay. Seems to be 
fairly consistent with those from old Replay.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Pi0_asymmetry_from_New_Replay
Will get mean averages by target cup and configuration.


_*Oscar:*_ Looking at F1 from the model being used (F1F209). Sees 
peculiar behavior at lower x_Bj (< 0.25), compared to other models. 
https://hallcweb.jlab.org/experiments/sane/rondon/analysis/asym/pdfs/
Will look further in to this.


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

Next meeting will be September 7, at 15:30 (JLab time).



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