<div dir="ltr"><div>Hi Tsuneo,</div><div><br></div><div>Sorry for the late reply. I believe you are asking why the 2000 MeV coherent-edge data is at the same distance away from the coherent edge as 1800 MeV data, although they are from different W ranges.</div><div>I don't have the complete answer but my understanding is that it is from some intensional selections and other accidental factors.</div><div><br></div><div>The same range means that the farest points for these two are the same. I believe this is because of the same requirement of beam polarization, i.e. the beam polarization needs to be greater than 10%. This 10% is applied on different coherent-edge runs.</div><div>If the correlation of beam polarization with the distance of beam energy to the coherent edge is the same/similar, we would expect the largest distance is the same or similar for different coherent-edge runs. In this case, it's around 0.45.</div><div><br></div><div>The correlation between the W and beam energy is the same, which is the concentrated slope. Since it is mastered by the kinematics, it is expected to be the same.</div><div><br></div><div>The last factor is accidental and not intentional. The 1800 MeV data covers from 1.84 to 1.9 about 60 MeV, while 2000 MeV data covers from 1.93 to 1.98 about 50 MeV. They are very close and therefore show the same/similar lower limit of the distance of energy to the coherent edge.</div><div><br></div><div>I hope this can explain it.</div><div><br></div><div>Regards,</div><div>Haiyun</div><div><br></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Jul 10, 2025 at 3:34 PM Tsuneo Kageya <<a href="mailto:kageya@jlab.org">kageya@jlab.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg5361103742325750860">
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Hi Haiyun,</div>
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I have a question about your yesterday's presentation.</div>
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How did you get the data from 2000 MeV with the same cohe-edgde - Eg and W</div>
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as 1800 MeV data ?</div>
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I am still confused. From the second page, 2000 MeV data seem to have similar cohe-dedge - Eg, but higher W range than 1800 MeV data ?</div>
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Thank you.</div>
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Regards, Tsuneo Kageya.</div>
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<div id="m_5361103742325750860divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Haiyun Lu <<a href="mailto:haiyun.lu@gmail.com" target="_blank">haiyun.lu@gmail.com</a>><br>
<b>Sent:</b> Wednesday, July 9, 2025 10:21 AM<br>
<b>To:</b> Annalisa D'Angelo <<a href="mailto:annalisa.dangelo@roma2.infn.it" target="_blank">annalisa.dangelo@roma2.infn.it</a>><br>
<b>Cc:</b> <a href="mailto:igor@gwu.edu" target="_blank">igor@gwu.edu</a> <<a href="mailto:igor@gwu.edu" target="_blank">igor@gwu.edu</a>>; Tsuneo Kageya <<a href="mailto:kageya@jlab.org" target="_blank">kageya@jlab.org</a>>; g14 run <<a href="mailto:g14_run@jlab.org" target="_blank">g14_run@jlab.org</a>><br>
<b>Subject:</b> [EXTERNAL] Re: g14 meeting tomorrow at 9:00 am JLab time</font>
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<div dir="ltr">The presentation is attached.</div>
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<div dir="ltr">On Tue, Jul 8, 2025 at 1:09 PM Annalisa D'Angelo <<a href="mailto:annalisa.dangelo@roma2.infn.it" target="_blank">annalisa.dangelo@roma2.infn.it</a>> wrote:<br>
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<p style="margin:0px">Dear All,</p>
<p style="margin:0px">to continue the discussion on the Analysis note status, let's meet for a g14 meeting tomorrow
<span dir="ltr">at 9:00 am</span> JLab time. <br>
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<p style="margin:0px">The link to the Zoom meeting is the following:</p>
<p style="margin:0px"><label style="margin-left:10px"></label><span role="link" id="m_5361103742325750860x_m_-1826396613628908180x_m_347062694291122102x_m_7233854492815625511OBJ_PREFIX_DWT1409_com_zimbra_url"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_j_1608547947-3Fpwd-3DM1ZRc3k1dTlWek1Tb1o3V25uWlN1Zz09&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=5LSWsFN5KweowPCsdwCuT6TNyYmHKJ3RcKK8qa-oO-g&m=a5rjQAEeKmo8bQtcVy3QdyKUoET0we9Jt90VgYZE6f5cVzmGbAKur5SnZuc9MtqW&s=qL3Z8lhB8Nm9KfOxpgaaYb7k-RjuLS1_ioAftn0b57w&e=" rel="noopener nofollow noopener noreferrer" target="_blank">https://jlab-org.zoomgov.com/j/1608547947?pwd=M1ZRc3k1dTlWek1Tb1o3V25uWlN1Zz09</a></span><br>
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<p style="margin:0px">meeting id is <label></label></p>
<div><span dir="ltr">160 854 7947</span> <br>
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<p style="margin:0px">if required passcode is <span style="display:inline-block;margin-right:16px;font-size:13px"><strong id="m_5361103742325750860x_m_-1826396613628908180x_m_347062694291122102x_m_7233854492815625511x_gmail-m_5660094733365428757displayPassword" style="display:inline"><br>
</strong></span></p>
<p style="margin:0px"><span style="display:inline-block;margin-right:16px;font-size:13px"><strong id="m_5361103742325750860x_m_-1826396613628908180x_m_347062694291122102x_m_7233854492815625511x_gmail-m_5660094733365428757displayPassword" style="display:inline">396000.</strong></span></p>
<div>All the best</div>
<div>Annalisa</div>
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Prof. Annalisa D'Angelo
Dip. Fisica, Universita' di Roma "Tor Vergata"
Istituto Nazionale di Fisica Nucleare
Sezione di Roma Tor Vergata, Rome Italy
<a href="mailto:email:annalisa.dangelo@roma2.infn.it" target="_blank">email:annalisa.dangelo@roma2.infn.it</a>
Jefferson Laboratory, Newport News, VA USA
Email: <a href="mailto:annalisa@jlab.org" target="_blank">annalisa@jlab.org</a>
Tel: + 39 06 72594562
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