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<u><b>***Collaboration Meeting:</b></u> Oscar mentioned that the
spokespeople have decided on 2 possible dates for a collaboration
meeting; February 27th or March 2nd. This would be a morning meeting
deal, something along the likes of 09:00 - noon. He has already
circulated an email.<br>
<br>
<br>
<u><b>Jon/James:</b></u> While looking at the asymmetries, A_1, A_2,
combining the beam energies, Jonathan noticed a discrepancy in the
asymmetries from the energies in the region ~0.4 < x_Bj < 0.45,
2.1 < W < 2.4 [GeV].This seems to come from the fact that E' is
different for the beam energies. From this, there appears to be a W
dependence of A_1 in the DIS region. <br>
James gets a similar result. He also looked at 2 ways of applying the
elastic tail radiative corrections (+/- A_RC).<br>
<a class="moz-txt-link-freetext" href="https://hallcweb.jlab.org/experiments/sane/wiki/index.php/JrmCoefficients#Problems_with_Combining_Different_Beam_Energy_Data">https://hallcweb.jlab.org/experiments/sane/wiki/index.php/JrmCoefficients#Problems_with_Combining_Different_Beam_Energy_Data</a><br>
<a class="moz-txt-link-freetext" href="https://hallcweb.jlab.org/experiments/sane/wiki/index.php/A1%2C_A2_and_Structure_Functions#Splitting_Results_into_4.7_and_5.9_GeV:_1.2F18.2F2012">https://hallcweb.jlab.org/experiments/sane/wiki/index.php/A1%2C_A2_and_Structure_Functions#Splitting_Results_into_4.7_and_5.9_GeV:_1.2F18.2F2012</a><br>
Oscar looked at the asymmetries, looking at the 2 cases of how to apply
the elastic radiative tail correction and compared with some other data
(CLAS/eg1b). The Q^2 bins seem to converge (i.e. Q^2 dependence
minimizes) when subtracting A_RC, plus also agreeing better with the
CLAS data. The labels are reversed in his .pdf files.<br>
<a class="moz-txt-link-freetext" href="https://userweb.jlab.org/~rondon/analysis/asym/Q2/">https://userweb.jlab.org/~rondon/analysis/asym/Q2/</a><br>
<br>
<br>
<u><b>Luwani:</b></u> Looked further at pi0 asymmetries, correcting for
target polarization and applying E' cuts. From this it appears that the
pi0 asymmetry is very small seems that the pi0 contribution is more of
a (background) dilution rather than an asymmetry.<br>
<a class="moz-txt-link-freetext" href="https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Average_Pi0_Asymmetry_with_Target_Polarization">https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Average_Pi0_Asymmetry_with_Target_Polarization</a><br>
<br>
<br>
<u><b>Whit:</b></u> Looking at pi0 production with his MC. Will try
applying the scattering angle cuts that Jonathan used in his energy
resolution study
(<a class="moz-txt-link-freetext" href="https://hallcweb.jlab.org/experiments/sane/wiki/index.php/JrmEResolution">https://hallcweb.jlab.org/experiments/sane/wiki/index.php/JrmEResolution</a>)
and compare to his results.<br>
<a class="moz-txt-link-freetext" href="http://quarks.temple.edu/~whit/SANE/analysis_main/results/">http://quarks.temple.edu/~whit/SANE/analysis_main/results/</a><br>
<br>
<br>
As always, please let me know if I missed anything or if I made any
mistake(s).<br>
<br>
Next meeting will be January 25th at 3:30 PM (JLab time).<br>
<br>
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