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What can radiative decays of the X(3872) teach us about its nature?

3 Pith papers cite this work, alongside 84 external citations. Polarity classification is still indexing.

3 Pith papers citing it
84 external citations · Pith
abstract

Starting from the hypothesis that the X(3872) is a $D\bar D^*$ molecule, we discuss the radiative decays of the X(3872) into $\gamma J/\psi$ and $\gamma\psi'$ from an effective field theory point of view. We show that radiative decays are very weakly sensitive to the long-range structure of the X(3872). In particular, contrary to earlier claims, we argue that the experimentally determined ratio of the mentioned branching fractions is not in conflict with a wave function of the X(3872) that is dominated by the $D\bar D^*$ hadronic molecular component.

fields

hep-ph 3

years

2026 2 2025 1

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