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Mellin moments of spin dependent and independent PDFs of the pion and rho meson

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Löffler, Marius ; Wein, Philipp ; Wurm, Thomas ; Weishäupl, Simon ; Jenkins, Daniel ; Rödl, Rudolf ; Schäfer, Andreas ; Walter, Lisa
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 20 Feb 2022 16:13


We compute the second moments of pion and rho parton distribution functions in lattice QCD with N-f = 2 + 1 flavors of improved Wilson fermions. We determine both singlet and nonsinglet flavor combinations and, for the first time, take disconnected contributions fully into account. In the case of the rho, we also calculate the additional contribution arising from the b(1) structure function. The ...


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