| 摘 要： | Inspired by the recent measurement of the process e~+e~-→∧■,we calculate the mass spectrum of the 0 meson with the GI model.For the excited vector strangeonium states ?(3 S,4 S,5 S,6 S) and ?(2 D,3 D,4 D,5 D),we investigate the electronic decay width with the Van Royen-Weisskopf formula,and the partial widths of the ∧■,■,and■ decay modes with the extended quark-pair creation model.We find that the electronic decay width of the D-wave vector strangeonium is about 3～8 times larger than of the S-wave vector strangeonium.Around 2232 Me V,the partial decay width of the ∧■ mode can be up to several MeV for ?(3~3 S_1),while the partial ∧■ decay width of ?(2~3 D_1) is O(10~(-3)) keV.If the threshold enhancement reported by the BESIII collaboration arises from the strangeonium meson,this state is very likely the ?(3~3 S_1) state.We also note that the ∧■ and∑~+■partial decay widths of the states ?(3~3 D_1) and ?(4~3 S_1) are several MeV,which is sufficient to be observed in future experiments.
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