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<div dir="auto">Greetings everyone,
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<div dir="auto">Tomorrow, on Monday, March 17th, 2025 at 1:00PM EDT, we will have a hybrid seminar given by Dimitra Pefkou of University of California, Berkeley, in person in CC L102 and on the following Zoom link: </div>
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<div dir="auto">https://jlab-org.zoomgov.com/j/1617685484?pwd=L57B0Lp70n1a0yRbkcdUeAiaBA8Y1q.1</div>
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<div dir="auto">Please see below for the title and abstract. </div>
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<div dir="auto">Theory Seminar: March 17th, 1pm EDT (hybrid) </div>
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<div dir="auto">Speaker: Dimitra Pefkou (University of California, Berkeley) </div>
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<div dir="auto">Title: Moments of Parton Distribution Functions From Lattice QCD </div>
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<div dir="auto">Abstract: Parton distribution functions (PDFs) are crucial to the understanding of the internal structure of hadrons, and their precise determination is necessary for searches of “beyond the Standard Model” physics in collider experiments. Directly
accessing PDFs in lattice QCD calculations is impossible due to the Euclidean space-time geometry. Mellin moments of PDFs are defined in terms of local operators that can be computed in lattice QCD but suffer from power divergent mixing beyond a certain order
due to the reduced symmetry of the hypercubic lattice. Recently, a method was proposed to use gradient flow in order to circumvent this mixing and access moments of PDFs of any order. In this talk, I will discuss the implementation of this method and present
preliminary results on moments of the unpolarized isovector PDF of the pion using four stabilized Wilson fermion ensembles generated by the OpenLat initiative. </div>
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<div dir="auto">See you on Monday. </div>
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<div dir="auto">Kind regards, </div>
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<div dir="auto">Joe, Zheng-Yang, Gloria and Adam</div>
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