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<p class="MsoNormal">Dear all,</p>
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<p class="MsoNormal">Tomorrow, Wednesday, June 28<sup>th</sup> at 1:00pm EDT, we will have a remote seminar given by Tim Hobbs of Argonne National Lab. Here is the unique Zoom for Government link:
<a href="https://jlab-org.zoomgov.com/j/1604005049?pwd=b0trN2c1QjgxSUZOTUp6eWVpN0pldz09">
https://jlab-org.zoomgov.com/j/1604005049?pwd=b0trN2c1QjgxSUZOTUp6eWVpN0pldz09</a>
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<p class="MsoNormal">See below for details.</p>
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<p class="MsoNormal"><b><u>Theory Seminar</u>:</b> Wednesday June 28th, 1pm EDT</p>
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<p class="MsoNormal"><b><u>Speaker</u>:</b> Tim Hobbs (Argonne National Lab)</p>
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<p class="MsoNormal"><b><u>Title:</u></b> Fitted charm in CT18: the enduring nonperturbative charm problem</p>
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<p class="MsoNormal"><b><u>Abstract:</u></b> As the lightest of the heavy flavors, the charm quark occupies a liminal space in QCD, transgressing the boundary separating perturbative and nonperturbative dynamics. Charm therefore plays a central role in efforts
to refine QCD and our corresponding understanding of proton structure for experiments at the LHC and elsewhere. Within this context, I outline a stubborn problem in the theory of nucleon structure: the open question of whether the proton contains a significant
nonperturbative (often called "intrinsic") charm component. I discuss some of the theoretical ambiguities that have kept this challenge alive while summarizing the findings of a recently published CTEQ-TEA analysis, the CT18 Fitted Charm (FC) study, which
identified a need for more data --- for instance, from the Electron-Ion Collider --- to ultimately resolve this question.<o:p></o:p></p>
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<p class="MsoNormal">See you tomorrow,</p>
<p class="MsoNormal">Carol, Joe, Patrick</p>
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