The dynamical diquark model predicts specific hidden-strangeness tetraquark multiplets near 2-3 GeV, with a distinctive three-state S-wave fingerprint in the ssss sector and several observed resonances as candidate matches.
Measurement of K^+K^- production in two-photon collisions in the resonant-mass region
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abstract
K^+K^- production in two-photon collisions has been studied using a large data sample of 67 fb^{-1} accumulated with the Belle detector at the KEKB asymmetric e^+e^- collider. We have measured the cross section for the process gamma gamma -> K^+ K^- for center-of-mass energies between 1.4 and 2.4 GeV, and found three new resonant structures in the energy region between 1.6 and 2.4 GeV. The angular differential cross sections have also been measured.
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Hidden-Strangeness Tetraquarks in the Dynamical Diquark Model
The dynamical diquark model predicts specific hidden-strangeness tetraquark multiplets near 2-3 GeV, with a distinctive three-state S-wave fingerprint in the ssss sector and several observed resonances as candidate matches.