Radiative decay of the $X(3872)$ as a mixed molecule-charmonium state in effective field theory

E. Cincioglu, A. Ozpineci

Assuming that $X(3872)$ is a mixture between $2P$ charmonium and $\bar{D}{D}^{\ast }$ molecular states with $J^{PC}=1^{++}$, an analysis of $X(3872)$ radiative decays into $J/\psi \gamma$ and $ψ(…