Radiative E1 decays of X(3872)

Tian-Hong Wang, Guo-Li Wang

Radiative E1 decay widths of $\mathrm{X}(3872)$ are calculated through the relativistic Salpeter method, with the assumption that $\mathrm{X}(3872)$ is the ${\chi }_{c1}$(2P) state, which is the r…