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First direct lattice-QCD calculation of the x -dependence of the pion parton distribution function

URN to cite this document:
urn:nbn:de:bvb:355-epub-454945
DOI to cite this document:
10.5283/epub.45494
Zhang, Jian-Hui ; Chen, Jiunn-Wei ; Jin, Luchang ; Lin, Huey-Wen ; Schäfer, Andreas ; Zhao, Yong
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Date of publication of this fulltext: 06 Apr 2021 12:39


Abstract

We present the first direct lattice-QCD calculation of the Bjorken−x dependence of the valence quark distribution of the pion. Using large-momentum effective theory (LaMET), we calculate the boosted pion state with long Wilson link operators. After implementing the one-loop matching and meson mass corrections, our result at mπ≈310  MeV is in agreement with those extracted from experimental data ...

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