Effects of multiquark bags in the quark potential model

This paper reports that the effects of the explicit treatment of multiquark confined states in the quark potential model are studied for the two--nucleon system. The confined six-quark component in the nucleon-nucleon wave function is shown to generate a new mechanism for the short-range nucleon-nucleon interaction which quantitatively reproduces both the repulsion and medium range attraction properties of the nuclear force. A quantitative effect of this mechanism is studied for a model with harmonic oscillator confinement. It is found that for an appropriate choice of parameters the NN force generated by an admixture of multiquark confined states can bind the six-quark system in the shallow deuteron-like bound state and qualitatively reproduces the low-energy phase-shift behavior. Our results may also be considered as the first example of dynamical calculations of nucleon-nucleon scattering in the Quark Compound Bag method using the explicit form of the six quark Hamiltonian