Abstract
The strong decays of the 5^1S_0q{bar{q}} states are evaluated in the ^3P_0 model with two types of space wave functions. Comparing the model expectations with the experimental data for the pi (2360), eta (2320), X(2370), and X(2500), we suggest that the pi (2360), eta (2320), and X(2500) can be assigned as the members of the 5^1S_0 meson nonet, while the 5^1S_0 assignment for the X(2370) is not favored by its width. The 5^1S_0 kaon is predicted to have a mass of about 2418 MeV and a width of about 163 or 225 MeV.
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