<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Dear CLAS and Hall B colleagues,<div><br></div><div><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><div><br></div><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><div><br></div><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://urldefense.proofpoint.com/v2/url?u=https-3A__drive.google.com_file_d_1hlrU3rTAGYx7Upi2ysIWBGmycj-2DlFSfX_view-3Fusp-3Dsharing&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=E9temI25vZoSfrwaoVr2jw&m=l2jtn_IcM9JZEUTSP50KGVLooIwUfP3NEbtdzbRLaF8Uns5zavr23YvZYt25m_EW&s=Gay3TlaxL0nvM8rQj5wuLWY1D8gaKXIJ-eNOOE8sdek&e=">https://drive.google.com/file/d/1hlrU3rTAGYx7Upi2ysIWBGmycj-lFSfX/view?usp=sharing</a></div><div><br></div><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 Hall D 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://urldefense.proofpoint.com/v2/url?u=https-3A__arxiv.org_abs_2409.18463&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=E9temI25vZoSfrwaoVr2jw&m=l2jtn_IcM9JZEUTSP50KGVLooIwUfP3NEbtdzbRLaF8Uns5zavr23YvZYt25m_EW&s=V8KFDJ1AzIbjPe4VkYpTX1kRgtRUrFm0n5-qeLmqvEU&e=">https://arxiv.org/abs/2409.18463</a>. We are quite excited about what we might learn from a longer experiment.</div><div><br></div><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://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_forms_d_e_1FAIpQLSdzSKF26K8l-2D3vUKYH-2D2cZGB2TgwHlfiBVR0FWfVB68FsEGhw_viewform-3Fusp-3Dheader&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=E9temI25vZoSfrwaoVr2jw&m=l2jtn_IcM9JZEUTSP50KGVLooIwUfP3NEbtdzbRLaF8Uns5zavr23YvZYt25m_EW&s=cWkBdykPM8BbQGIQ2hpcNMayj_GN1VPrENPMJz32n2o&e=">https://docs.google.com/forms/d/e/1FAIpQLSdzSKF26K8l-3vUKYH-2cZGB2TgwHlfiBVR0FWfVB68FsEGhw/viewform?usp=header</a></div><div><br></div><div><div><span class="Apple-tab-span" style="white-space: pre;"></span></div><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><div><br></div><div><span class="Apple-tab-span" style="white-space: pre;"></span>Thanks, and best regards,</div><div>Axel</div><div><br></div><div>________________________________</div><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></div></div></body></html>