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Pion and Kaon Distribution Amplitudes up to twist-3 in the QCD Instanton Vacuum

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arxiv 2110.06989 v1 pith:XE722TY6 submitted 2021-10-13 hep-ph

Arthur Kock , Ismail Zahed This is my paper · ORCID
classification hep-ph
keywords amplitudesdistributioninstantonkaonpionresolutionresultstwist-3
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We discuss the pion and kaon distribution amplitudes up to twist-3 in the context of the random instanton vacuum (RIV). We construct explicitly the pertinent quasi-pion and quasi-kaon distributions in the RIV, and analyze them in leading order in the diluteness factor, at a resolution fixed by the inverse instanton size. The distribution amplitudes (DA) follow from the large momentum limit. The results at higher resolution are discussed using QCD evolution, and compared to their asymptotic limits and some lattice results.

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  1. Generic framework for non-perturbative QCD in light hadrons

    hep-ph 2025-01 conditional novelty 2.0 of 10

    The instanton liquid model, with instanton size, density, and quark mass as its main inputs, is presented as a generic framework for light-hadron vacuum condensates, matrix elements, and form factors.

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