| Summary: | Assuming that X(3872) is a mixture between 2P charmonium and D¯D⁎ molecular states with JPC=1++, an analysis of X(3872) radiative decays into J/ψγ and ψ(2S)γ is presented. The modification of the radiative branching ratio due to possible constructive or destructive interferences between the meson-loop and the short-distance contact term, which is modeled by a charm quark loop, is shown. The model predictions are shown to be compatible with the experimentally determined ratio of the mentioned branching fractions for a wide range of the X(3872) charmonium content. In the case of the destructive interference, a strong restriction on the charmonium admixture is found.
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