Approach to color transparency as a means of determining hadronic distribution amplitudes

Publisher Website
Google Scholar
Abstract
We calculate isolated, wide-angle, semi-inclusive meson production in high-energy electron scattering off nucleons within a nucleus. The nuclear medium is a filter, eliminating mesons produced with a quark and antiquark separated farther than some distance dependent on the kinematics and the size of the nucleus. The precise result depends on integrals over meson distribution amplitudes with end-point cutoffs determined by the nuclear filter. The dependence of meson production on the nucleus and kinematics gives direct information on the meson short-distance wave function. We also comment on how one may use the same process to study the distribution functions of the nucleon.