Fully-strange tetraquarks mostly show narrow fall-apart decay widths of O(10) MeV, with X(2300) possibly matching the 1S-wave 1^{+-} state at 2323 MeV and X(2500) the 1P-wave 0^{-+} state at 2481 MeV.
On the \phi(1020)f_0(980) S-wave scattering and the Y(2175) resonance
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We have studied the \phi(1020)f_0(980) S-wave scattering at energies around threshold employing chiral Lagrangians coupled to vector mesons through minimal coupling. The interaction kernel is obtained by considering the f_0(980) as a K\bar{K} bound state. The Y(2175) resonance is generated in this approach by the self-interactions between the \phi(1020) and the f_0(980) resonances. We are able to describe the e^+e^-\to \phi(1020)f_0(980) recent scattering data to test experimentally our scattering amplitudes, concluding that the Y(2175) resonance has a large \phi(1020)f_0(980) meson-meson component.
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Fully-strange tetraquarks: fall-apart decays and experimental candidates
Fully-strange tetraquarks mostly show narrow fall-apart decay widths of O(10) MeV, with X(2300) possibly matching the 1S-wave 1^{+-} state at 2323 MeV and X(2500) the 1P-wave 0^{-+} state at 2481 MeV.