Is Y(4008)Y(4008) possibly a 1−−1^{--} ψ(33S1)ψ(3^3S_1) state?

preprint2014arXivOpen access

Abstract

The strong decays of the radially excited ψ(33S1)ψ(3^3S_1) state are studied within the 3P0^3P_0 model. As a believed ψ(33S1)ψ(3^3S_1), some strong decay widths and relevant ratios of ψ(4040)ψ(4040) are calculated in the model. The theoretical results are consistent with experiments. In a similar way, as a possible ψ(33S1)ψ(3^3S_1), the same strong decay widths and relevant ratios of Y(4008)Y(4008) are presented. Our study indicates that Y(4008)Y(4008) is hard to be identified with a ψ(33S1)ψ(3^3S_1) charmonium once it is confirmed under the D∗Dˉ∗D^*\bar{D}^* threshold, but it is very possibly a ψ(33S1)ψ(3^3S_1) charmonium once it is confirmed above the D∗Dˉ∗D^*\bar{D}^* threshold by experiment.

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