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<span style="font-size:12.0pt">Dear Colleagues,</span><span style="font-size:10.0pt"></span></p>
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<span style="font-size:12.0pt"> </span><span style="font-size:10.0pt"></span></p>
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<span style="font-size:12.0pt">The Jefferson Lab energy upgrade White Paper, outlining the exciting opportunity and science case, has garnered substantial support from the community this past week. So as not to leave anyone out prior to submission, the brief
period to sign on has been extended. Please take advantage of this extension and support the effort.
</span><span style="font-size:10.0pt"></span></p>
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<span style="font-size: 12pt; color: black;"> </span></p>
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<span style="font-size: 12pt; color: black;">In the last year, several workshops aimed at pursuing a novel accelerator upgrade to 22 GeV of CEBAF, with the goal of advancing the frontiers of our knowledge across the spectrum of topics in nuclear physics, have
been organized by the JLab user community and staff with guidance from JLab management. This upgraded facility at the luminosity frontier will open up a rich and unique experimental nuclear physics program that combines the illustrious history of the laboratory
with an exciting scientific future. Following the workshops, an editorial committee<span class="x_xxapple-converted-space"> </span>has collected input from the community and assembled a<span class="x_xxapple-converted-space"> </span>White Paper that outlines
the scientific program with CEBAF at 22 GeV. The document is openly<span class="x_xxapple-converted-space"> </span>available in the following link<span class="x_xxapple-converted-space"> </span></span></p>
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<span style="font-size: 12pt; color: black;"> </span></p>
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<a href="https://drive.google.com/file/d/1VQelVEu6Sz6Z9cxWV4nkrYMX7NzO1rUP" data-auth="NotApplicable" title="https://drive.google.com/file/d/1VQelVEu6Sz6Z9cxWV4nkrYMX7NzO1rUP" id="OWAcd852197-92c2-3fee-52ef-2b5cd11018df" class="OWAAutoLink"><span style="font-size:12.0pt">https://drive.google.com/file/d/1VQelVEu6Sz6Z9cxWV4nkrYMX7NzO1rUP</span></a></p>
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<span style="font-size: 12pt; color: black;">While this grass-roots effort started with conversations among the workshop participants, many others have expressed interest in this program, contributed through discussions outside of the workshops, or plan to contribute
in the future. We would therefore like to invite all of you to support the CEBAF energy upgrade project. You can sign the document as a coauthor by completing this form:</span></p>
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<a href="https://forms.gle/aQ6TKqGC2dnwMuGK6" data-auth="NotApplicable" title="https://forms.gle/aQ6TKqGC2dnwMuGK6"><span style="font-size:12.0pt">https://forms.gle/aQ6TKqGC2dnwMuGK6</span></a><span style="font-size: 12pt; color: black;"> <span class="x_xxapple-converted-space"> </span></span></p>
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<span style="font-size: 12pt; color: black;"> </span></p>
<p class="x_xxmsonormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;">
<span style="font-size: 12pt; color: black;">The deadline for signing as a coauthor is<span class="x_xxapple-converted-space"> </span><b>June 12 at 8 a.m. EDT</b> </span></p>
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<span style="font-size: 12pt; color: black;">We plan to submit the document to the arXiv after this date, and subsequently for publication in a refereed journal.</span></p>
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<span style="font-size: 12pt; color: black;">On behalf of the editorial committee,</span></p>
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<span style="color: black;"> </span></p>
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<span style="font-size: 12pt; color: black;">Patrizia Rossi</span></p>
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