DOE OSTI · 1875950
Zero modes and matching for the twist-3 PDFs
Abstract
The quasi-PDF approach, proposed by X. Ji in 2013, has made it possible to directly extract light-cone PDFs from lattice QCD. This approach relies on the extraction of matrix elements of space-like operators for fast-moving hadrons. Quasi-PDFs can be related to the light-cone PDFs through a perturbatively calculable matching coefficient. We explore the formalism of matching, for the very first time, for the twist-3 PDFs g_{T}(x) g T ( x ) , e(x) e ( x ) and h_{L}(x) h L ( x ) . In this work, we address the non-trivialities involved in the extraction of the matching coefficient due to the presence of (singular) zero-mode contributions.
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Bhattacharya, Shohini, Cichy, Krzysztof, Constantinou, Martha, Metz, Andreas, Scapellato, Aurora, Steffens, Fernanda. 2022-07-12. Zero modes and matching for the twist-3 PDFs. https://doi.org/10.21468/scipostphysproc.8.056
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