# New vistas of the meson structure in QCD from low to high energies - High Energy Physics - Phenomenology

New vistas of the meson structure in QCD from low to high energies - High Energy Physics - Phenomenology - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: This talk presents issues pertaining to the quark structure of the pionwithin QCD, both from the theoretical and from the experimental point of view.We review and discuss the pion-photon transition form factor and the pion-selectromagnetic form factor vs. corresponding experimental data from the CLEOCollaboration and the JLab. We also examine the extent to which recenthigh-precision lattice computations of the second moment of the pion-sdistribution amplitude conform with theoretical models. Finally, we includepredictions for the azimuthal asymmetry of the $\mu^+$ distribution in thepolarized $\mu$-pair-induced DY production employing various pion distributionamplitudes.

Autor: N. G. Stefanis

Fuente: https://arxiv.org/