Hybrid structure of X(3872) and its radiative decays

We study the radiative decays of the $X(3872)$ using a charmonium-two-meson hybrid model with the two-meson states consisting of the $D^0\bar D{}^{*0}$, $D^+D^{*-}$, $J/\psi\rho$, and $J/\psi\omega$. We can reproduce the observed mass of the X(3872) in this framework. The obtained structure of the $X(3872)$ explains many of the observed properties, such as the isospin symmetry breaking, the production rate in the $p \bar p$ collision, a lack of the existence of the $\chi_{c1}(2P)$ peak predicted by the quark model and the absence of the charged partner of the $X (3872) $. We shall report the results of the $X(3872) \to J/\psi \, \gamma$ and $X(3872) \to \psi' \, \gamma$ decay rates in our approach.