The short-range baryon baryon interaction in a chiral constituent quark model

The previous analysis of the short-range $NN$ repulsion
originating from the Goldstone boson exchange hyperfine interaction
between constituent quarks is revisited.
We study in which respects the repulsion depends on
the radial form of the spin-spin quark-quark force. We show that while
the radial form affects the structure of the 6Q wave function,
the short-range repulsion in the $NN$ system persists in any case. We extend
our analysis to other $YN$ and $YY$ (flavor octet-octet) systems and
demonstrate that the flavor-spin hyperfine interaction implies a
short-range repulsion in these B=2 systems as well.