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The leading-twist pion and kaon distribution amplitudes from the QCD instanton vacuum

Seung-il Nam·Hyun-Chul Kim·Atsushi Hosaka·M. M. Musakhanov
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Abstract

We investigate the leading-twist light-cone distribution amplitudes for the pion and kaon, based on the nonlocal chiral quark model from the instanton vacuum. Effects of explicit flavor SU(3)-symmetry breaking are taken into account. The Gegenbauer moments are computed, analyzed and compared with those of other models. The one-loop QCD evolution of the moments is briefly discussed. The transverse momentum distributions are also discussed for the pion and kaon light-cone wave functions.

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Seung-il Nam, Hyun-Chul Kim, Atsushi Hosaka, M. M. Musakhanov. 2006-07-04. The leading-twist pion and kaon distribution amplitudes from the QCD instanton vacuum. https://doi.org/10.1103/physrevd.74.014019

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