Search for $Z^{+}_{s1}$ and $Z^{+}_{s2}$ strangeonium-like structures

Details Search for $Z^{+}_{s1}$ and $Z^{+}_{s2}$ strangeonium-like structures Search for $Z^{+}_{s1}$ and $Z^{+}_{s2}$ strangeonium-like structures

2012-01-17

arxiv.org/abs/1201.3412v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 eps figures

Scientific paper

Theoretically, there exist two charged strangeonium-like molecular states $Z^{+}_{s1}$ and $Z^{+}_{s2}$, with $K\bar{K}^{*}$ and $K^{*}\bar{K}^{*}$ configurations, respectively. In the framework of QCD sum rules, we predict that masses of $Z^{+}_{s1}$ ($K\bar{K}^{*}$) and $Z^{+}_{s2}$ ($K^{*}\bar{K}^{*}$) are $1.64\sim1.82 GeV$ and $1.87\sim2.05 GeV$, respectively. We suggest to put in practice the search for these two charged strangeonium-like structures in future experiments.

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