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Dear Adam,</div>
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The 3D plot is quite challenging to interpret. Could you please generate a 2D plot with a color scheme instead?</div>
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I also noticed that your reduced chi-2 values are excessively high. We need to focus on the values around the chi-2 minimum, extending up to [chi-squared minimum +10]. This range will help us estimate parameter errors more accurately. Specifically, the ellipse
at chi-2 =minimum +1 will indicate the expected error bars for our parameters.</div>
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I don't think that we can ignore the VGG because it is model. We are forced to work with the models any way and it is the only way to get access to Ju and Jd in this particular case.</div>
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Best regards,</div>
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Valery </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> ajhobart <ajhobart@jlab.org><br>
<b>Sent:</b> Wednesday, June 5, 2024 04:07<br>
<b>To:</b> Valery Kubarovsky <vpk@jlab.org><br>
<b>Cc:</b> clas12_rgb@jlab.org <clas12_rgb@jlab.org><br>
<b>Subject:</b> concerning figure 5 of nDVCS paper draft, VGG predictions compared with our data</font>
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<div class="PlainText">Dear Valery, RGB,<br>
<br>
following our discussion during the last RGB meeting concerning figure 5 <br>
of the nDVCS paper draft, we have performed a scan using VGG of <br>
different values of Ju and Jd and evaluating for each set a chi2 with <br>
the 9 data points that we extract with our analysis. Indeed, this scan <br>
has shown that there are other values of Ju and Jd that are more <br>
"preferred" by our extracted harmonics than the ones we had initially <br>
put in the paper. We have updated figure 5 accordingly (I attach it here <br>
also).<br>
<br>
color code for figure 5<br>
<br>
// ju jd reduced chi2<br>
//-0.45 0.2 3.03423 blue<br>
//-0.25 0.15 3.19268 black<br>
//-0.2 0.15 3.1004 Red<br>
<br>
Attached also you will find the plot with Ju, Jd and chi2 value for each <br>
set as you requested. It seems that there is a particular preferred <br>
range for Jd (around 0.15) but none for Ju.<br>
<br>
<br>
thanks<br>
<br>
Best regards<br>
<br>
Adam<br>
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