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

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

2006-05-24

arxiv.org/abs/hep-ph/0605259v2

Phys.Rev. D74 (2006) 014019

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 12 figures. Accepted for publication in Physical Review D

Scientific paper

10.1103/PhysRevD.74.014019

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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