[Sane-analysis] Minutes of October 19 Analysis Meeting

[Narbe Kalantarians]

_*James:*_ Looking at lifetime polarizations of target material. 
Plotting polarization as functions of dose and time. This is to look for 
any other periods of strange polarization that was seen for a few of the 
parallel B-field runs.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Final_Target_Polarization#Material_Lifetime_Polarizations:_10.2F19.2F2011

Updated the polarization table. Corrected/updated some of target 
polarizations after applying/fitting a "general" decay curve. Will look 
with average of decay curves.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Inputs_for_Analysis

Updated calculations of kinematic coefficients for physics asymmetries 
A_1,2. Has a bug that is overestimating the errors.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/A1%2C_A2_and_Structure_Functions#Updated_Coefficients_for_A1_and_A2:_10.2F19.2F2011

Applying (elastic) radiative tail corrections per bin, per run.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Radiative_Corrections#Rad_Tail_Plots:_10.2F19.2F2011


_*Narbe:*_ Updated kinematics tables using Q^2 with dynamic width (+/- 
15%) instead of the fixed +/- 0.5GeV widths.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Kinematics#10.2F19.2F2011


_*Whit:*_ Implementing helicity-dependent cross-sections for his event 
generator.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Whit#Helicity_Dependent_Cross_Sections_.28under_work.29 



_*Luwani:*_ Started using the GEANT-MC for looking at pi0 
production/rates to compare with data.
https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Pi0_Energy_from_geant_mc_vs_data


_*Hovhannes:*_ Revisiting positron contribution for data at lower E' (E' 
< 1.1 GeV). Sees some dependence on (polar) scattering angle theta. 
Limited statistics at large angles. Looking at counts vs. (projected - 
reconstructed), projected is obtained from target (SR_x,y, theta, phi) 
then interpolated to tracker.
https://hallcweb.jlab.org/experiments/sane/bhovik/Pos_Cont/
Will compare with Eric and Peter's model for positrons, which uses JLab 
data.


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

Next meeting will be October 26, 3:30pm (JLab time).


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