3 research outputs found
Campagne océanographique EBENE à bord du N.O. l'Atalante : 21 octobre au 20 novembre 1996 : recueil de données : 2. Matière organique, pigments photosynthétiques, production primaire, micro- et mésozooplancton, profileur vidéo marin
Pion distribution amplitudes within the instanton model of QCD vacuum
Pion transition form factor for the process at
space-like values of photon momenta is calculated within the effective
quark-meson model with the interaction induced by instanton exchange. The
leading and next-to-leading order power asymptotics of the form factor and the
relation between the light-cone pion distribution amplitudes of twists 2 and 4
and the dynamically generated quark mass are found.Comment: 5 pages, 4 eps figures. Revised version: references and figures adde