Abstract
The decay behaviors of the Ds+Ds− molecule state have been studied in an effective Lagrangian approach. We find that the Ds+Ds− molecule state dominantly decays into DD¯ and ηcη. The total and partial widths are strongly dependent on the model parameter, however, the ratio of the partial widths for ηcη and DD¯ is relatively stable and predicted to be about 0.17∼0.22. In addition, our evaluation shows that the partial width for the Ds+Ds− molecule to J/ψω is too small to be observed, thus the charmonium-like state X(3915) should not be a Ds+Ds− molecule state.
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