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Twist-3 partonic distributions from lattice QCD
Bhattacharya, Shohini Cichy, Krzysztof Metz, Andreas Steffens, Fernanda
Bhattacharya, Shohini
Cichy, Krzysztof
Metz, Andreas
Steffens, Fernanda
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Journal article
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2022-07-12
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Physics
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http://dx.doi.org/10.21468/scipostphysproc.8.057
Abstract
Twist-3 partonic distributions contain important information that characterizes nucleon's structure. In this work, we show our lattice exploration of the twist-3 PDFs gT(x), and hL(x). We also present our preliminary results on the twist-3 GPD ~G2(x). We use the quasi-distribution approach to connect the lattice-extracted matrix elements, renormalized in the RI/MOM scheme, to light-cone distributions, applying the matching procedure that we developed in parallel. We also calculate the twist-2 counterparts of gT(x) and hL(x), i.e. g1(x), and h1(x), and test the Wandzura-Wilczek approximation.
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SciPost Physics Proceedings, Vol. 8
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