Abstract
The Julich-Bonn-Munich Group has performed extensive studies of baryon-baryon interactions involving strange baryons (\(\varLambda \), \(\varSigma \), \(\varXi \)) within chiral effective field theory (EFT). A selection of the achieved results is presented. In particular, a calculation of the in-medium properties of a hyperon-nucleon interaction derived within chiral EFT and fitted to \(\varLambda N\) and \(\varSigma N\) scattering data is reviewed. Implications on the properties of neutron stars and, specifically, on the so-called hyperon-puzzle are addressed. In addition, results for baryon-baryon scattering in the strangeness \(S=-2\) sector, obtained at next-to-leading order in the chiral expansion, are presented.
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