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arxiv: 1402.5470 · v1 · pith:FN7K7C3Vnew · submitted 2014-02-22 · ✦ hep-ph · hep-ex

Is Y(4008) possibly a 1⁻⁻ psi(3³S₁) state?

classification ✦ hep-ph hep-ex
keywords strongcharmoniumconfirmeddecaymodeloncepossiblyratios
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The strong decays of the radially excited $\psi(3^3S_1)$ state are studied within the $^3P_0$ model. As a believed $\psi(3^3S_1)$, some strong decay widths and relevant ratios of $\psi(4040)$ are calculated in the model. The theoretical results are consistent with experiments. In a similar way, as a possible $\psi(3^3S_1)$, the same strong decay widths and relevant ratios of $Y(4008)$ are presented. Our study indicates that $Y(4008)$ is hard to be identified with a $\psi(3^3S_1)$ charmonium once it is confirmed under the $D^*\bar{D}^*$ threshold, but it is very possibly a $\psi(3^3S_1)$ charmonium once it is confirmed above the $D^*\bar{D}^*$ threshold by experiment.

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