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We present a lattice quantum chromodynamics (QCD) calculation of the -dependent pion and kaon distribution amplitudes (DA) in the framework of large momentum effective theory. This calculation is performed on a fine lattice of at physical pion mass, with the pion boosted to 1.8 GeV and kaon boosted to 2.3 GeV. We renormalize the matrix elements in the hybrid scheme and match to with a subtraction of the leading renormalon in the Wilson-line mass. The perturbative matching is improved by resumming the large logarithms related to the small quark and gluon momenta in the soft-gluon limit. After resummation, we demonstrate that we are able to calculate a range of with for pion and for kaon with theoretical systematic errors under control. The kaon DA is shown to be slighted skewed, and narrower than pion DA. Although the -dependence cannot be direct calculated beyond these ranges, we estimate higher moments of the pion and kaon DAs by complementing our calculation with short-distance factorization. Published by the American Physical Society2024more » « lessFree, publicly-accessible full text available December 1, 2025
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Moffat, Eric; Freese, Adam; Cloët, Ian; Donohoe, Thomas; Gamberg, Leonard; Melnitchouk, W; Metz, Andreas; Prokudin, Alexei; Sato, Nobuo (, Physical Review D)
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