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Dear GlueX and Hall D colleagues,
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<div>I write to invite you to sign on to a Hall D proposal that I and others are preparing for this year's PAC:</div>
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<div><span class="Apple-tab-span" style="white-space:pre"></span><b>"Threshold J/ψ Photoproduction as a Probe of Nuclear Gluon Structure"</b></div>
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<div>It's derived from our proposal last year, on to which many of you signed. A link to this year's draft can be found here:</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span><a href="https://drive.google.com/file/d/1hlrU3rTAGYx7Upi2ysIWBGmycj-lFSfX/view?usp=sharing">https://drive.google.com/file/d/1hlrU3rTAGYx7Upi2ysIWBGmycj-lFSfX/view?usp=sharing</a></div>
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<div>In this experiment, we plan to study, among several reactions, J/Psi production from protons bound in Helium-4. Our group has analyzed this reaction in the 2021 Short-Range Correlations / Color-Transparency Experiment (E12-19-003), and our results were
recently accepted to PRL as an editor's suggestion. They will be published in a few weeks, but until then, the preprint is on the arXiv: <a href="https://arxiv.org/abs/2409.18463">https://arxiv.org/abs/2409.18463</a>. We are quite excited about what we might
learn from a longer experiment.</div>
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<div>We would welcome anyone who would like to sign on to the proposal. To add your name, opt-in here:</div>
<div> <a href="https://docs.google.com/forms/d/e/1FAIpQLSdzSKF26K8l-3vUKYH-2cZGB2TgwHlfiBVR0FWfVB68FsEGhw/viewform?usp=header">https://docs.google.com/forms/d/e/1FAIpQLSdzSKF26K8l-3vUKYH-2cZGB2TgwHlfiBVR0FWfVB68FsEGhw/viewform?usp=header</a></div>
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<div><span class="Apple-tab-span" style="white-space: pre;"></span>We also welcome your feedback, which you can send to me and to Jackson Pybus (cc'ed). Please accept our humble apologies if we aren't able to address every comment we receive. </div>
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<div><span class="Apple-tab-span" style="white-space: pre;"></span>Thanks, and best regards,</div>
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<div>Axel</div>
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<div>Axel Schmidt</div>
<div>Asst. Prof. of Physics</div>
<div>George Washington University</div>
<div>Office: 419 Corcoran Hall</div>
<div>725 21st St. NW, Washington DC, 20052</div>
<div>Email: <a href="mailto:axelschmidt@gwu.edu">axelschmidt@gwu.edu</a></div>
<div>Tel: 202-994-9306</div>
<div> he / him / his</div>
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