Annotation
It is shown that in the kinematic range $Q^2\ge3$ GeV$^2/c^2$, $Q^2\gg k^2$, the main contribution into the cross section $d\sigma_T/d(k^2)$ of neutral pions electroproduction is made by the process of qnasielastic knocking-out of $\rho^0$- and $\omega$-mesons followed by their restructuring into a $\pi^0$-meson. It is proposed to use this property of electroproduction for directly probing the structure of the nucleon $\omega$-meson cloud, which will allow one to determine not only the momentum distribution of the $\omega$-meson in the nucleon, the spectroscopic factor of its separation, and the constant of $\omega NN$ interaction, but also the relative sign of the $G_{\rho NN}$ and $G_{\omega NN}$ constants.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
N.P. Yudin, L.L. Sviridova, V.G. Neudachin
Research Institute of Nuclear Physics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Research Institute of Nuclear Physics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia