  We calculate hyperon-nucleon and hyperon-hyperon interactions at
next-to-leading order in SU(3) baryon chiral perturbation theory extending
earlier work by the Bonn-Juelich group. The constructed potentials in momentum
space include all one- and two-meson exchange terms generated by the SU(3)
chiral Lagrangian. Effects from intermediate decuplet baryons are considered as
well. These chiral baryon-baryon potentials, together with appropriate contact
terms, provide a new basis for systematic studies of hyperon-nucleon scattering
and light hypernuclei.
