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<u><b>Hoyoung:</b></u> Working on finishing packing fractions and
dilution factors for HMS parallel data. <br>
<a class="moz-txt-link-freetext" href="http://www.jlab.org/~hykang/pf/20100317/">http://www.jlab.org/~hykang/pf/20100317/</a><br>
<br>
Looked at parallel 4.7GeV NH3 runs at HMS theta=20.2 degrees and
P=3.2GeV/c: 73004 (bottom) and 73012(top). <br>
<br>
These seemed to give very large packing fraction values. The yields
could be higher than what was seen for previous runs for same HMS
setting: 73014 (top) and 73019 (bottom). And if so this could be due to
tracking efficiencies. Will look into that. <br>
<u><b><br>
Hovhannes/Narbe:</b></u> Made a version of the SANE GEANT with the
neural network implemented and also the polynomial corrections (for
magnetic field) for physics phi and theta. The corrected and
reconstructed physics angles agree reasonably with the generated data.
The corrections have been done for perpendicular and parallel is in
progress. The correction was done for generated energy, though. Will
look at it being done for reconstructed energy.<br>
<br>
Plan on including photons. This will require looping over clusters,
which (hopefully)shouldn't be too difficult. This can possibly help in
mitigating the neural network causing the pi0 mass to drift at higher
energies.<br>
<br>
<u><b><br>
Anusha:</b></u> Looking into what is causing the correlations she
reported seeing last week: <br>
<br>
<i>--Looking at ep elastics, specifically plots of
x-diff & y-diff versus slow-raster_x & slow-raster_y, versus
xtar & ytar, and versus xptar & yptar. This is to check the
latest calibrations. Saw some correlations that need some further
investigation, such as whether correct signs are used for field or
slow-raster relative to BETA coordinate system.<br>
<br>
<a class="moz-txt-link-freetext"
href="https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Ep_Elastics">https://hallcweb.jlab.org/experiments/sane/wiki/index.php/Ep_Elastics</a></i>
<br>
<br>
<br>
Will meet again next week at 3:30pm.<br>
<br>
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