Photoproduction and electroproduction ofJPC=1−+exotics

We estimate the kinematic dependence of the exclusive photo- and electro-production of $J^{\mathrm{PC}}{=1\mathrm{}}^{-+}$ exotic mesons due to π exchange. We show that the kinematic dependence is largely independent of the exotic meson form factor, which is explicitly derived for a $1^{-+}$ isovector hybrid meson in the flux-tube model of Isgur and Paton. The relevance to experiments currently planned at Jefferson Lab is indicated.