Leading-twist pion and kaon distribution amplitudes from the QCD instanton vacuum
Seung-il NamDepartment of Physics and Nuclear physics & Radiation Technology Institute (NuRI), Pusan National University, Busan 609-735, KoreaHyun-Chul KimDepartment of Physics and Nuclear physics & Radiation Technology Institute (NuRI), Pusan National University, Busan 609-735, KoreaAtsushi HosakaM.M. MusakhanovTheoretical Physics Department, National University of Uzbekistan, Tashkent 7000174, Uzbekistan
ABI
Аннотация
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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