The radiative decay of $\psi (3770)$ into the predicted scalar state X(3700)

Abstract

We calculate the radiative decay width of the $\psi (3770)$ into the dynamically generated scalar resonance X(3700) which is predicted in a previous paper. The results show that it is possible that the upgraded BEPC-II facility will generate enough statistics in order to observe this decay and thus confirm the existence of the X(3700).

arXiv comment5 pages, 1 figure

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• Weak decays of heavy hadrons into dynamically generated resonances
• Prediction of an $I=1$ $D{\bar{D}}^{\ast }$ state and relationship to the claimed $Z_c(3900)$, $Z_c(3885)$
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