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<div class="">Dear all,</div>
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<div class="">Tomorrow we will have a theory seminar, please see below for details:</div>
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<div class="">Bluejeans connection: <a href="https://bluejeans.com/801786278" class="">https://bluejeans.com/801786278</a></div>
<div class="">Date and time: Monday May 17th, 2021, 1:00PM</div>
<div class="">Speaker: Shohini Bhattacharya (Temple University)</div>
<div class="">Title: An exploratory study of twist-3 PDFs using quasi-PDF approach</div>
<div class="">Abstract: The quasi-PDF approach, proposed by Ji in 2013, has sparked a new wave of interest in extracting PDFs from lattice QCD. This approach relies on the extraction of matrix elements of fast-moving hadrons coupled to space-like separated
quark fields. Such auxiliary quantities can be related to the light-cone PDFs using a perturbative procedure called matching. This procedure has demonstrated success in the extraction of the twist-2 PDFs as well as twist-2 GPDs from lattice QCD. We explore
the formalism of matching, for the first time, for the twist-3 PDFs g_{T}(x), e(x) and h_{L}(x). We make several non-trivial observations, all of which arise from the singular zero-mode contributions present in the perturbative results of the light-cone and
quasi-PDFs. As such, we lay the necessary theoretical foundations for dealing with such zero-mode contributions in matching-type calculations. Finally, we present the first-ever x-dependent twist-3 results. </div>
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<div class="">The recording archives of our seminars can be found here:</div>
<div class=""> <a href="https://www.jlab.org/theory/seminars/2021seminars" class="">https://www.jlab.org/theory/seminars/2021seminars</a></div>
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<div class="">In order to easier identify the person speaking at a given time during the seminar, we would like to kindly ask each participant to enter their full name when logging on to the meeting.</div>
<div class="">Thanks, and see you all there!</div>
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<div class="">Best regards,</div>
<div class="">Astrid, Christos, Filippo</div>
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