Papers › Is the Y(2175) a Strangeonium Hybrid Meson?
Is the Y(2175) a Strangeonium Hybrid Meson?
J. Ho, R. Berg, T. G. Steele, W. Chen, D. Harnett
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QCD Gaussian sum-rules are used to explore the vector (J^(PC)=1^–) strangeonium hybrid interpretation of the Y(2175). Using a two-resonance model consisting of the Y(2175) and an additional resonance, we find that the relative resonance strength of the Y(2175) in the Gaussian sum-rules is less than 5\% that of a heavier 2.9 GeV state. This small relative strength presents a challenge to a dominantly-hybrid interpretation of the Y(2175).
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