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Hey everyone,</div>
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Change of venue for today's seminar. We will be in L102 which has become available. </div>
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<span style="font-family: Aptos, Aptos_MSFontService, -apple-system, Roboto, Arial, Helvetica, sans-serif; font-size: 12pt;">-Joe Karpie</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Joseph Karpie<br>
<b>Sent:</b> Monday, October 27, 2025 4:32:01 PM<br>
<b>To:</b> Adam Freese via Theory-seminars <theory-seminars@jlab.org><br>
<b>Subject:</b> Cake Seminar Wed</font>
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Hey everyone,</div>
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On Wednesday we will be welcoming Ming Li, a new professor at Hampton U, who will give our Cake Seminar at 1pm. Please join us in the Auditorium or just outside in the lobby for refreshments beforehand</div>
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Title: Toward Understanding Proton’s Spin Structure at Small x</div>
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Abstract: Understanding how individual quarks and gluons contribute to the proton’s total spin 1/2 is one of the main topics in the study of the proton’s internal structure. At present, state-of-the-art global fittings still fall short of fully explaining proton’s
total spin, with one of the least understood contributions coming from quarks and gluons at small longitudinal momentum fraction x. In this talk, I will discuss recent theoretical advances toward understanding the proton’s spin structure at small x, particularly
on the development of small-x helicity evolution equations and on incorporating data from longitudinally polarized proton-proton collisions to constrain the initial conditions.</div>
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<span style="background-color:rgb(255,255,255)">--</span></div>
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Joe Karpie</div>
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Pronouns: He/His/Him</div>
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Postdoctoral Fellow</div>
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Theoretical and Computational Physics Center</div>
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Jefferson Lab</div>
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