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arXiv · 2212.06201

Continuum limit of parton distribution functions from the pseudo-distribution approach on the lattice

Manjunath Bhat·Wojciech Chomicki·Krzysztof Cichy·Martha Constantinou·Jeremy R. Green·Aurora Scapellato
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Abstract

Precise exploration of the partonic structure of the nucleon is one of the most important aims of high-energy physics. In recent years, it has become possible to address this topic with first-principle lattice QCD investigations. In this talk, we focus on the so-called pseudo-distribution approach to determine the isovector unpolarized PDFs. In particular, we employ three lattice spacings to study discretization effects and extract the distributions in the continuum limit, at a pion mass of around 370 MeV. Also, for the first time with pseudo-PDFs, we explore effects of the 2-loop matching from pseudo- to light-cone distributions.

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Manjunath Bhat, Wojciech Chomicki, Krzysztof Cichy, Martha Constantinou, Jeremy R. Green, Aurora Scapellato. 2022-12-12. Continuum limit of parton distribution functions from the pseudo-distribution approach on the lattice. https://arxiv.org/abs/2212.06201

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