Current constraints on the EFT for the \Lambda N --> N N transition
  The relation between the low energy constants appearing in the effective field theory description of the \Lambda N --> N N transition potential and the parameters of the one-meson-exchange model previously developed are obtained. We extract the relative importance of the different exchange mechanisms included in the meson picture by means of a comparison to the corresponding operational structures appearing in the effective approach. The ability of this procedure to obtain the weak baryon-baryon-meson couplings for a possible scalar exchange is also discussed. 
Axel P\'erez-Obiol, Assumpta Parre\~no, and Bruno Juli\'a-D\'iaz
nucl-th