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- W3026456435 abstract "Perturbative matching relates the parton quasi-distributions, defined by Euclidean correlators at finite hadron momenta, to the light-cone distributions which are accessible in experiments. Previous matching calculations have exclusively focused on twist-2 distributions. In this work, we address, for the first time, the one-loop matching for the twist-3 parton distribution function $g_T(x)$. The results have been obtained using three different infrared regulators, while dimensional regularization has been adopted to deal with the ultraviolet divergences. We present the renormalized expressions of the matching coefficient for $g_{T}(x)$ in the $overline{rm MS}$ and modified $overline{rm MS}$ schemes. We also discuss the role played by a zero-mode contribution. Our results have already been used for the extraction of $g_T(x)$ from lattice QCD calculations." @default.
- W3026456435 created "2020-05-29" @default.
- W3026456435 creator A5003302229 @default.
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- W3026456435 creator A5071999787 @default.
- W3026456435 creator A5077042942 @default.
- W3026456435 creator A5084666405 @default.
- W3026456435 date "2020-08-06" @default.
- W3026456435 modified "2023-10-01" @default.
- W3026456435 title "One-loop matching for the twist-3 parton distribution <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mi>g</mml:mi><mml:mi>T</mml:mi></mml:msub><mml:mo stretchy=false>(</mml:mo><mml:mi>x</mml:mi><mml:mo stretchy=false>)</mml:mo></mml:math>" @default.
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