Di-nucleon exotics and quark statistics

It seems to us that the Bose quark model without the color freedom deserves a promising unified model as well as the ''standard'' confined color quark model. Their difference appears clearly in level structures of exotic states (especially in the ground di-nucleon ones) as was shown previously. In this paper we have examined detailed level structures of the 1st and 2nd excited di-nucleon exotics and compared the results with the present experiments, pointing out both facts which respectively favor the Bose or color Q. M. A feasible experiment to crucially discriminate between the two approaches is also proposed. (author)