Effect of hidden color channels on the nucleon-nucleon interaction

In the framework of a 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 the NN interaction. The deuteron properties and dibaryon candidates have also been studied with this model.