Hyperon-nucleon interaction in chiral effective field theory

Results of a study of the hyperon-nucleon system within chiral effective field theory are reported.The investigation is based on the scheme proposed by Weinberg which has been applied rather successfully to thenucleon-nucleon interaction in the past.Results for the $\Lambda N$ and $\Sigma N$ interactions in free space and nuclear matter, obtained up to next-to-leadingorder, are presented and discussed