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In the paper is presented a four-body potential model for $q^2\bar{q}^2$systems which includes both the spin and flavour degrees of freedom, extendingthe formalism presented already in the spin independent situation. This allowsan application to a realistic situation, which is chosen to be $K\bar{K}$scattering. It is seen that because of the gluonic effects in this multi-quarksystem, the $K\bar{K}$ attraction resulting from the quark-exchange mechanismgets appreciably decreased compared to that emerging through the naive two-bodypotential approach.Comment: 43 page

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

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Model forq2q¯2…