The process $\text{epem}\to J/\psi X(3940)$ at $\sqrt{s}=10.6$ GeV in the framework of light cone formalism

Abstract

This paper is devoted to the study of the process $\text{epem}\to J/\psi X(3940)$ in the framework of light cone formalism. In our calculation two hypotheses about the structure of X(3940) meson are considered: X(3940) is $3^1$S${}_0$ state and X(3940) is one of $2^3$P states. The former hypothesis leads to a good agreements with the cross section measured at the experiment. As to the latter one, it is proposed a mechanism that allows one to understand the suppression of 2P mesons production in hard processes.

Comments: minor changes