Model calculations suggest a bound double-strange tetraquark state with I(JP)=0(1+) at about 1310 MeV and a resonance near 1783 MeV.
The effect of hidden color channels on nucleon-nucleon interaction in quark model
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In the framework of constituent quark model, the effect of hidden color channels on the nucleon-nucleon ($NN$) interaction is studied. By adjusting the color confinement strength between the hidden color channels and color singlet channels and/or between the hidden color channels and hidden color channels, the experimental data of $S$ to $I$ partial-wave phase shifts of $NN$ scattering can be fitted well. The results show that the hidden color channel coupling might be important in producing the intermediate-range attraction of $NN$ interaction. The deuteron properties and dibaryon candidates have also been studied with this model.
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Exploring the spectroscopic features of double-strangeness tetraquark states
Model calculations suggest a bound double-strange tetraquark state with I(JP)=0(1+) at about 1310 MeV and a resonance near 1783 MeV.