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Unpolarized isovector quark distribution function from lattice QCD: A systematic analysis of renormalization and matching

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Liu, Yu-Sheng ; Chen, Jiunn-Wei ; Huo, Yi-Kai ; Jin, Luchang ; Schlemmer, Maximilian ; Schäfer, Andreas ; Sun, Peng ; Wang, Wei ; Yang, Yi-Bo ; Zhang, Jian-Hui ; Zhang, Qi-An ; Zhang, Kuan ; Zhao, Yong
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 01 Apr 2021 17:24


We present a detailed lattice QCD study of the unpolarized isovector quark parton distribution function (PDF) using a large-momentum effective theory framework. We choose a quasi-PDF defined by a spatial correlator which is free from mixing with other operators of the same dimension. In the lattice simulation, we use a Gaussian-momentum-smeared source at M-pi = 356 MeV and P-z is an element of ...


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